Income Tax Brackets API
OnlineCredit Usage:1 per callRefreshed 1 month ago
avg: 463ms|p50: 438ms|p75: 480ms|p90: 530ms|p99: 630ms
Overview
To use Income Tax Brackets, you need an API key. You can get one by creating a free account and visiting your dashboard.
GET Endpoint
URL
https://api.apiverve.com/v1/incometaxExample
How to call the Income Tax Brackets API in different programming languages.
cURL Request
curl -X GET \
"https://api.apiverve.com/v1/incometax?country=US&year=2024" \
-H "X-API-Key: your_api_key_here"JavaScript (Fetch API)
const response = await fetch('https://api.apiverve.com/v1/incometax?country=US&year=2024', {
method: 'GET',
headers: {
'X-API-Key': 'your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);Python (Requests)
import requests
headers = {
'X-API-Key': 'your_api_key_here',
'Content-Type': 'application/json'
}
response = requests.get('https://api.apiverve.com/v1/incometax?country=US&year=2024', headers=headers)
data = response.json()
print(data)Go (net/http)
package main
import (
"fmt"
"io"
"net/http"
)
func main() {
req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/incometax?country=US&year=2024", nil)
req.Header.Set("X-API-Key", "your_api_key_here")
req.Header.Set("Content-Type", "application/json")
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
panic(err)
}
defer resp.Body.Close()
body, _ := io.ReadAll(resp.Body)
fmt.Println(string(body))
}Example Response
{
"status": "ok",
"error": null,
"data": {
"year": 2025,
"country": "US",
"type": "federal",
"brackets": {
"single": [
{
"rate": 0.1,
"min": 0,
"max": 11924
},
{
"rate": 0.12,
"min": 11925,
"max": 48474
},
{
"rate": 0.22,
"min": 48475,
"max": 103349
},
{
"rate": 0.24,
"min": 103350,
"max": 197299
},
{
"rate": 0.32,
"min": 197300,
"max": 250524
},
{
"rate": 0.35,
"min": 250525,
"max": 626349
},
{
"rate": 0.37,
"min": 626350,
"max": 999999999
}
],
"married_filing_jointly": [
{
"rate": 0.1,
"min": 0,
"max": 23849
},
{
"rate": 0.12,
"min": 23850,
"max": 96949
},
{
"rate": 0.22,
"min": 96950,
"max": 206699
},
{
"rate": 0.24,
"min": 206700,
"max": 394599
},
{
"rate": 0.32,
"min": 394600,
"max": 501049
},
{
"rate": 0.35,
"min": 501050,
"max": 751599
},
{
"rate": 0.37,
"min": 751600,
"max": 999999999
}
],
"married_filing_separately": [
{
"rate": 0.1,
"min": 0,
"max": 11924
},
{
"rate": 0.12,
"min": 11925,
"max": 48474
},
{
"rate": 0.22,
"min": 48475,
"max": 103349
},
{
"rate": 0.24,
"min": 103350,
"max": 197299
},
{
"rate": 0.32,
"min": 197300,
"max": 250524
},
{
"rate": 0.35,
"min": 250525,
"max": 375799
},
{
"rate": 0.37,
"min": 375800,
"max": 999999999
}
],
"head_of_household": [
{
"rate": 0.1,
"min": 0,
"max": 16999
},
{
"rate": 0.12,
"min": 17000,
"max": 64849
},
{
"rate": 0.22,
"min": 64850,
"max": 103349
},
{
"rate": 0.24,
"min": 103350,
"max": 197299
},
{
"rate": 0.32,
"min": 197300,
"max": 250499
},
{
"rate": 0.35,
"min": 250500,
"max": 626349
},
{
"rate": 0.37,
"min": 626350,
"max": 999999999
}
]
},
"standard_deduction": {
"single": 15000,
"married_filing_jointly": 30000,
"married_filing_separately": 15000,
"head_of_household": 22500
},
"lastUpdated": "2026-02-07T06:02:41.898Z",
"marriagePenalty": {
"appliesFromRate": 0.37,
"singleThreshold": 626350,
"jointThreshold": 751600,
"jointShortfall": 501100
},
"effectiveRateCurve": {
"single": [
{
"income": 25000,
"taxableIncome": 10000,
"tax": 1000,
"effectiveRate": 0.04,
"marginalRate": 0.1
},
{
"income": 50000,
"taxableIncome": 35000,
"tax": 3961.4,
"effectiveRate": 0.0792,
"marginalRate": 0.12
},
{
"income": 100000,
"taxableIncome": 85000,
"tax": 13613.78,
"effectiveRate": 0.1361,
"marginalRate": 0.22
},
{
"income": 250000,
"taxableIncome": 235000,
"tax": 52262.32,
"effectiveRate": 0.209,
"marginalRate": 0.32
},
{
"income": 1000000,
"taxableIncome": 985000,
"tax": 321468.9,
"effectiveRate": 0.3215,
"marginalRate": 0.37
}
],
"married_filing_jointly": [
{
"income": 25000,
"taxableIncome": 0,
"tax": 0,
"effectiveRate": 0,
"marginalRate": 0.1
},
{
"income": 50000,
"taxableIncome": 20000,
"tax": 2000,
"effectiveRate": 0.04,
"marginalRate": 0.1
},
{
"income": 100000,
"taxableIncome": 70000,
"tax": 7922.9,
"effectiveRate": 0.0792,
"marginalRate": 0.12
},
{
"income": 250000,
"taxableIncome": 220000,
"tax": 38493.56,
"effectiveRate": 0.154,
"marginalRate": 0.24
},
{
"income": 1000000,
"taxableIncome": 970000,
"tax": 282961.15,
"effectiveRate": 0.283,
"marginalRate": 0.37
}
],
"married_filing_separately": [
{
"income": 25000,
"taxableIncome": 10000,
"tax": 1000,
"effectiveRate": 0.04,
"marginalRate": 0.1
},
{
"income": 50000,
"taxableIncome": 35000,
"tax": 3961.4,
"effectiveRate": 0.0792,
"marginalRate": 0.12
},
{
"income": 100000,
"taxableIncome": 85000,
"tax": 13613.78,
"effectiveRate": 0.1361,
"marginalRate": 0.22
},
{
"income": 250000,
"taxableIncome": 235000,
"tax": 52262.32,
"effectiveRate": 0.209,
"marginalRate": 0.32
},
{
"income": 1000000,
"taxableIncome": 985000,
"tax": 326479.9,
"effectiveRate": 0.3265,
"marginalRate": 0.37
}
],
"head_of_household": [
{
"income": 25000,
"taxableIncome": 2500,
"tax": 250,
"effectiveRate": 0.01,
"marginalRate": 0.1
},
{
"income": 50000,
"taxableIncome": 27500,
"tax": 2959.9,
"effectiveRate": 0.0592,
"marginalRate": 0.12
},
{
"income": 100000,
"taxableIncome": 77500,
"tax": 10224.78,
"effectiveRate": 0.1022,
"marginalRate": 0.22
},
{
"income": 250000,
"taxableIncome": 227500,
"tax": 48123.32,
"effectiveRate": 0.1925,
"marginalRate": 0.32
},
{
"income": 1000000,
"taxableIncome": 977500,
"tax": 316955.65,
"effectiveRate": 0.317,
"marginalRate": 0.37
}
]
},
"changes": {
"versusYear": 2024,
"indexingPercent": 2.794,
"bracketShifts": {
"single": [
{
"rate": 0.12,
"from": 11600,
"to": 11925,
"shiftPercent": 2.802
},
{
"rate": 0.22,
"from": 47150,
"to": 48475,
"shiftPercent": 2.81
},
{
"rate": 0.24,
"from": 100525,
"to": 103350,
"shiftPercent": 2.81
},
{
"rate": 0.32,
"from": 191950,
"to": 197300,
"shiftPercent": 2.787
},
{
"rate": 0.35,
"from": 243725,
"to": 250525,
"shiftPercent": 2.79
},
{
"rate": 0.37,
"from": 609350,
"to": 626350,
"shiftPercent": 2.79
}
],
"married_filing_jointly": [
{
"rate": 0.12,
"from": 23200,
"to": 23850,
"shiftPercent": 2.802
},
{
"rate": 0.22,
"from": 94300,
"to": 96950,
"shiftPercent": 2.81
},
{
"rate": 0.24,
"from": 201050,
"to": 206700,
"shiftPercent": 2.81
},
{
"rate": 0.32,
"from": 383900,
"to": 394600,
"shiftPercent": 2.787
},
{
"rate": 0.35,
"from": 487450,
"to": 501050,
"shiftPercent": 2.79
},
{
"rate": 0.37,
"from": 731200,
"to": 751600,
"shiftPercent": 2.79
}
],
"married_filing_separately": [
{
"rate": 0.12,
"from": 11600,
"to": 11925,
"shiftPercent": 2.802
},
{
"rate": 0.22,
"from": 47150,
"to": 48475,
"shiftPercent": 2.81
},
{
"rate": 0.24,
"from": 100525,
"to": 103350,
"shiftPercent": 2.81
},
{
"rate": 0.32,
"from": 191950,
"to": 197300,
"shiftPercent": 2.787
},
{
"rate": 0.35,
"from": 243725,
"to": 250525,
"shiftPercent": 2.79
},
{
"rate": 0.37,
"from": 365600,
"to": 375800,
"shiftPercent": 2.79
}
],
"head_of_household": [
{
"rate": 0.12,
"from": 16550,
"to": 17000,
"shiftPercent": 2.719
},
{
"rate": 0.22,
"from": 63100,
"to": 64850,
"shiftPercent": 2.773
},
{
"rate": 0.24,
"from": 100500,
"to": 103350,
"shiftPercent": 2.836
},
{
"rate": 0.32,
"from": 191950,
"to": 197300,
"shiftPercent": 2.787
},
{
"rate": 0.35,
"from": 243700,
"to": 250500,
"shiftPercent": 2.79
},
{
"rate": 0.37,
"from": 609350,
"to": 626350,
"shiftPercent": 2.79
}
]
},
"standardDeduction": {
"single": {
"from": 14600,
"to": 15000,
"change": 400,
"changePercent": 2.74
},
"married_filing_jointly": {
"from": 29200,
"to": 30000,
"change": 800,
"changePercent": 2.74
},
"married_filing_separately": {
"from": 14600,
"to": 15000,
"change": 400,
"changePercent": 2.74
},
"head_of_household": {
"from": 21900,
"to": 22500,
"change": 600,
"changePercent": 2.74
}
}
}
}
}Authentication
The Income Tax Brackets API requires authentication via API key. Include your API key in the request header:
Required Header
X-API-Key: your_api_key_hereInteractive API Playground
Test the Income Tax Brackets API directly in your browser with live requests and responses.
Try Income Tax Brackets APIView details and test in the API marketplace
Parameters
The following parameters are available for the Income Tax Brackets API:
Some Income Tax Brackets parameters marked with Premium are available exclusively on paid plans.View pricing
Get Tax Brackets
| Parameter | Type | Required | Description | Default | Example |
|---|---|---|---|---|---|
country | string | required | The country code (currently only 'US' is supported) Length: 2 - 2 chars | - | |
yearPremium | integer | optional | The tax year to retrieve brackets for. Defaults to the previous year. Range: 2000 - 2030 | - |
Response
The Income Tax Brackets API returns responses in JSON, XML, YAML, and CSV formats. The JSON response is shown in the Example section above; alternative formats below.
Other Response Formats
XML Response
200 OK
<?xml version="1.0" encoding="UTF-8"?>
<response>
<status>ok</status>
<error xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
<data>
<year>2025</year>
<country>US</country>
<type>federal</type>
<brackets>
<single>
<item>
<rate>0.1</rate>
<min>0</min>
<max>11924</max>
</item>
<item>
<rate>0.12</rate>
<min>11925</min>
<max>48474</max>
</item>
<item>
<rate>0.22</rate>
<min>48475</min>
<max>103349</max>
</item>
<item>
<rate>0.24</rate>
<min>103350</min>
<max>197299</max>
</item>
<item>
<rate>0.32</rate>
<min>197300</min>
<max>250524</max>
</item>
<item>
<rate>0.35</rate>
<min>250525</min>
<max>626349</max>
</item>
<item>
<rate>0.37</rate>
<min>626350</min>
<max>999999999</max>
</item>
</single>
<married_filing_jointly>
<item>
<rate>0.1</rate>
<min>0</min>
<max>23849</max>
</item>
<item>
<rate>0.12</rate>
<min>23850</min>
<max>96949</max>
</item>
<item>
<rate>0.22</rate>
<min>96950</min>
<max>206699</max>
</item>
<item>
<rate>0.24</rate>
<min>206700</min>
<max>394599</max>
</item>
<item>
<rate>0.32</rate>
<min>394600</min>
<max>501049</max>
</item>
<item>
<rate>0.35</rate>
<min>501050</min>
<max>751599</max>
</item>
<item>
<rate>0.37</rate>
<min>751600</min>
<max>999999999</max>
</item>
</married_filing_jointly>
<married_filing_separately>
<item>
<rate>0.1</rate>
<min>0</min>
<max>11924</max>
</item>
<item>
<rate>0.12</rate>
<min>11925</min>
<max>48474</max>
</item>
<item>
<rate>0.22</rate>
<min>48475</min>
<max>103349</max>
</item>
<item>
<rate>0.24</rate>
<min>103350</min>
<max>197299</max>
</item>
<item>
<rate>0.32</rate>
<min>197300</min>
<max>250524</max>
</item>
<item>
<rate>0.35</rate>
<min>250525</min>
<max>375799</max>
</item>
<item>
<rate>0.37</rate>
<min>375800</min>
<max>999999999</max>
</item>
</married_filing_separately>
<head_of_household>
<item>
<rate>0.1</rate>
<min>0</min>
<max>16999</max>
</item>
<item>
<rate>0.12</rate>
<min>17000</min>
<max>64849</max>
</item>
<item>
<rate>0.22</rate>
<min>64850</min>
<max>103349</max>
</item>
<item>
<rate>0.24</rate>
<min>103350</min>
<max>197299</max>
</item>
<item>
<rate>0.32</rate>
<min>197300</min>
<max>250499</max>
</item>
<item>
<rate>0.35</rate>
<min>250500</min>
<max>626349</max>
</item>
<item>
<rate>0.37</rate>
<min>626350</min>
<max>999999999</max>
</item>
</head_of_household>
</brackets>
<standard_deduction>
<single>15000</single>
<married_filing_jointly>30000</married_filing_jointly>
<married_filing_separately>15000</married_filing_separately>
<head_of_household>22500</head_of_household>
</standard_deduction>
<lastUpdated>2026-02-07T06:02:41.898Z</lastUpdated>
<marriagePenalty>
<appliesFromRate>0.37</appliesFromRate>
<singleThreshold>626350</singleThreshold>
<jointThreshold>751600</jointThreshold>
<jointShortfall>501100</jointShortfall>
</marriagePenalty>
<effectiveRateCurve>
<single>
<item>
<income>25000</income>
<taxableIncome>10000</taxableIncome>
<tax>1000</tax>
<effectiveRate>0.04</effectiveRate>
<marginalRate>0.1</marginalRate>
</item>
<item>
<income>50000</income>
<taxableIncome>35000</taxableIncome>
<tax>3961.4</tax>
<effectiveRate>0.0792</effectiveRate>
<marginalRate>0.12</marginalRate>
</item>
<item>
<income>100000</income>
<taxableIncome>85000</taxableIncome>
<tax>13613.78</tax>
<effectiveRate>0.1361</effectiveRate>
<marginalRate>0.22</marginalRate>
</item>
<item>
<income>250000</income>
<taxableIncome>235000</taxableIncome>
<tax>52262.32</tax>
<effectiveRate>0.209</effectiveRate>
<marginalRate>0.32</marginalRate>
</item>
<item>
<income>1000000</income>
<taxableIncome>985000</taxableIncome>
<tax>321468.9</tax>
<effectiveRate>0.3215</effectiveRate>
<marginalRate>0.37</marginalRate>
</item>
</single>
<married_filing_jointly>
<item>
<income>25000</income>
<taxableIncome>0</taxableIncome>
<tax>0</tax>
<effectiveRate>0</effectiveRate>
<marginalRate>0.1</marginalRate>
</item>
<item>
<income>50000</income>
<taxableIncome>20000</taxableIncome>
<tax>2000</tax>
<effectiveRate>0.04</effectiveRate>
<marginalRate>0.1</marginalRate>
</item>
<item>
<income>100000</income>
<taxableIncome>70000</taxableIncome>
<tax>7922.9</tax>
<effectiveRate>0.0792</effectiveRate>
<marginalRate>0.12</marginalRate>
</item>
<item>
<income>250000</income>
<taxableIncome>220000</taxableIncome>
<tax>38493.56</tax>
<effectiveRate>0.154</effectiveRate>
<marginalRate>0.24</marginalRate>
</item>
<item>
<income>1000000</income>
<taxableIncome>970000</taxableIncome>
<tax>282961.15</tax>
<effectiveRate>0.283</effectiveRate>
<marginalRate>0.37</marginalRate>
</item>
</married_filing_jointly>
<married_filing_separately>
<item>
<income>25000</income>
<taxableIncome>10000</taxableIncome>
<tax>1000</tax>
<effectiveRate>0.04</effectiveRate>
<marginalRate>0.1</marginalRate>
</item>
<item>
<income>50000</income>
<taxableIncome>35000</taxableIncome>
<tax>3961.4</tax>
<effectiveRate>0.0792</effectiveRate>
<marginalRate>0.12</marginalRate>
</item>
<item>
<income>100000</income>
<taxableIncome>85000</taxableIncome>
<tax>13613.78</tax>
<effectiveRate>0.1361</effectiveRate>
<marginalRate>0.22</marginalRate>
</item>
<item>
<income>250000</income>
<taxableIncome>235000</taxableIncome>
<tax>52262.32</tax>
<effectiveRate>0.209</effectiveRate>
<marginalRate>0.32</marginalRate>
</item>
<item>
<income>1000000</income>
<taxableIncome>985000</taxableIncome>
<tax>326479.9</tax>
<effectiveRate>0.3265</effectiveRate>
<marginalRate>0.37</marginalRate>
</item>
</married_filing_separately>
<head_of_household>
<item>
<income>25000</income>
<taxableIncome>2500</taxableIncome>
<tax>250</tax>
<effectiveRate>0.01</effectiveRate>
<marginalRate>0.1</marginalRate>
</item>
<item>
<income>50000</income>
<taxableIncome>27500</taxableIncome>
<tax>2959.9</tax>
<effectiveRate>0.0592</effectiveRate>
<marginalRate>0.12</marginalRate>
</item>
<item>
<income>100000</income>
<taxableIncome>77500</taxableIncome>
<tax>10224.78</tax>
<effectiveRate>0.1022</effectiveRate>
<marginalRate>0.22</marginalRate>
</item>
<item>
<income>250000</income>
<taxableIncome>227500</taxableIncome>
<tax>48123.32</tax>
<effectiveRate>0.1925</effectiveRate>
<marginalRate>0.32</marginalRate>
</item>
<item>
<income>1000000</income>
<taxableIncome>977500</taxableIncome>
<tax>316955.65</tax>
<effectiveRate>0.317</effectiveRate>
<marginalRate>0.37</marginalRate>
</item>
</head_of_household>
</effectiveRateCurve>
<changes>
<versusYear>2024</versusYear>
<indexingPercent>2.794</indexingPercent>
<bracketShifts>
<single>
<item>
<rate>0.12</rate>
<from>11600</from>
<to>11925</to>
<shiftPercent>2.802</shiftPercent>
</item>
<item>
<rate>0.22</rate>
<from>47150</from>
<to>48475</to>
<shiftPercent>2.81</shiftPercent>
</item>
<item>
<rate>0.24</rate>
<from>100525</from>
<to>103350</to>
<shiftPercent>2.81</shiftPercent>
</item>
<item>
<rate>0.32</rate>
<from>191950</from>
<to>197300</to>
<shiftPercent>2.787</shiftPercent>
</item>
<item>
<rate>0.35</rate>
<from>243725</from>
<to>250525</to>
<shiftPercent>2.79</shiftPercent>
</item>
<item>
<rate>0.37</rate>
<from>609350</from>
<to>626350</to>
<shiftPercent>2.79</shiftPercent>
</item>
</single>
<married_filing_jointly>
<item>
<rate>0.12</rate>
<from>23200</from>
<to>23850</to>
<shiftPercent>2.802</shiftPercent>
</item>
<item>
<rate>0.22</rate>
<from>94300</from>
<to>96950</to>
<shiftPercent>2.81</shiftPercent>
</item>
<item>
<rate>0.24</rate>
<from>201050</from>
<to>206700</to>
<shiftPercent>2.81</shiftPercent>
</item>
<item>
<rate>0.32</rate>
<from>383900</from>
<to>394600</to>
<shiftPercent>2.787</shiftPercent>
</item>
<item>
<rate>0.35</rate>
<from>487450</from>
<to>501050</to>
<shiftPercent>2.79</shiftPercent>
</item>
<item>
<rate>0.37</rate>
<from>731200</from>
<to>751600</to>
<shiftPercent>2.79</shiftPercent>
</item>
</married_filing_jointly>
<married_filing_separately>
<item>
<rate>0.12</rate>
<from>11600</from>
<to>11925</to>
<shiftPercent>2.802</shiftPercent>
</item>
<item>
<rate>0.22</rate>
<from>47150</from>
<to>48475</to>
<shiftPercent>2.81</shiftPercent>
</item>
<item>
<rate>0.24</rate>
<from>100525</from>
<to>103350</to>
<shiftPercent>2.81</shiftPercent>
</item>
<item>
<rate>0.32</rate>
<from>191950</from>
<to>197300</to>
<shiftPercent>2.787</shiftPercent>
</item>
<item>
<rate>0.35</rate>
<from>243725</from>
<to>250525</to>
<shiftPercent>2.79</shiftPercent>
</item>
<item>
<rate>0.37</rate>
<from>365600</from>
<to>375800</to>
<shiftPercent>2.79</shiftPercent>
</item>
</married_filing_separately>
<head_of_household>
<item>
<rate>0.12</rate>
<from>16550</from>
<to>17000</to>
<shiftPercent>2.719</shiftPercent>
</item>
<item>
<rate>0.22</rate>
<from>63100</from>
<to>64850</to>
<shiftPercent>2.773</shiftPercent>
</item>
<item>
<rate>0.24</rate>
<from>100500</from>
<to>103350</to>
<shiftPercent>2.836</shiftPercent>
</item>
<item>
<rate>0.32</rate>
<from>191950</from>
<to>197300</to>
<shiftPercent>2.787</shiftPercent>
</item>
<item>
<rate>0.35</rate>
<from>243700</from>
<to>250500</to>
<shiftPercent>2.79</shiftPercent>
</item>
<item>
<rate>0.37</rate>
<from>609350</from>
<to>626350</to>
<shiftPercent>2.79</shiftPercent>
</item>
</head_of_household>
</bracketShifts>
<standardDeduction>
<single>
<from>14600</from>
<to>15000</to>
<change>400</change>
<changePercent>2.74</changePercent>
</single>
<married_filing_jointly>
<from>29200</from>
<to>30000</to>
<change>800</change>
<changePercent>2.74</changePercent>
</married_filing_jointly>
<married_filing_separately>
<from>14600</from>
<to>15000</to>
<change>400</change>
<changePercent>2.74</changePercent>
</married_filing_separately>
<head_of_household>
<from>21900</from>
<to>22500</to>
<!-- ... response truncated (508 total lines) -->YAML Response
200 OK
status: ok
error: null
data:
year: 2025
country: US
type: federal
brackets:
single:
- rate: 0.1
min: 0
max: 11924
- rate: 0.12
min: 11925
max: 48474
- rate: 0.22
min: 48475
max: 103349
- rate: 0.24
min: 103350
max: 197299
- rate: 0.32
min: 197300
max: 250524
- rate: 0.35
min: 250525
max: 626349
- rate: 0.37
min: 626350
max: 999999999
married_filing_jointly:
- rate: 0.1
min: 0
max: 23849
- rate: 0.12
min: 23850
max: 96949
- rate: 0.22
min: 96950
max: 206699
- rate: 0.24
min: 206700
max: 394599
- rate: 0.32
min: 394600
max: 501049
- rate: 0.35
min: 501050
max: 751599
- rate: 0.37
min: 751600
max: 999999999
married_filing_separately:
- rate: 0.1
min: 0
max: 11924
- rate: 0.12
min: 11925
max: 48474
- rate: 0.22
min: 48475
max: 103349
- rate: 0.24
min: 103350
max: 197299
- rate: 0.32
min: 197300
max: 250524
- rate: 0.35
min: 250525
max: 375799
- rate: 0.37
min: 375800
max: 999999999
head_of_household:
- rate: 0.1
min: 0
max: 16999
- rate: 0.12
min: 17000
max: 64849
- rate: 0.22
min: 64850
max: 103349
- rate: 0.24
min: 103350
max: 197299
- rate: 0.32
min: 197300
max: 250499
- rate: 0.35
min: 250500
max: 626349
- rate: 0.37
min: 626350
max: 999999999
standard_deduction:
single: 15000
married_filing_jointly: 30000
married_filing_separately: 15000
head_of_household: 22500
lastUpdated: '2026-02-07T06:02:41.898Z'
marriagePenalty:
appliesFromRate: 0.37
singleThreshold: 626350
jointThreshold: 751600
jointShortfall: 501100
effectiveRateCurve:
single:
- income: 25000
taxableIncome: 10000
tax: 1000
effectiveRate: 0.04
marginalRate: 0.1
- income: 50000
taxableIncome: 35000
tax: 3961.4
effectiveRate: 0.0792
marginalRate: 0.12
- income: 100000
taxableIncome: 85000
tax: 13613.78
effectiveRate: 0.1361
marginalRate: 0.22
- income: 250000
taxableIncome: 235000
tax: 52262.32
effectiveRate: 0.209
marginalRate: 0.32
- income: 1000000
taxableIncome: 985000
tax: 321468.9
effectiveRate: 0.3215
marginalRate: 0.37
married_filing_jointly:
- income: 25000
taxableIncome: 0
tax: 0
effectiveRate: 0
marginalRate: 0.1
- income: 50000
taxableIncome: 20000
tax: 2000
effectiveRate: 0.04
marginalRate: 0.1
- income: 100000
taxableIncome: 70000
tax: 7922.9
effectiveRate: 0.0792
marginalRate: 0.12
- income: 250000
taxableIncome: 220000
tax: 38493.56
effectiveRate: 0.154
marginalRate: 0.24
- income: 1000000
taxableIncome: 970000
tax: 282961.15
effectiveRate: 0.283
marginalRate: 0.37
married_filing_separately:
- income: 25000
taxableIncome: 10000
tax: 1000
effectiveRate: 0.04
marginalRate: 0.1
- income: 50000
taxableIncome: 35000
tax: 3961.4
effectiveRate: 0.0792
marginalRate: 0.12
- income: 100000
taxableIncome: 85000
tax: 13613.78
effectiveRate: 0.1361
marginalRate: 0.22
- income: 250000
taxableIncome: 235000
tax: 52262.32
effectiveRate: 0.209
marginalRate: 0.32
- income: 1000000
taxableIncome: 985000
tax: 326479.9
effectiveRate: 0.3265
marginalRate: 0.37
head_of_household:
- income: 25000
taxableIncome: 2500
tax: 250
effectiveRate: 0.01
marginalRate: 0.1
- income: 50000
taxableIncome: 27500
tax: 2959.9
effectiveRate: 0.0592
marginalRate: 0.12
- income: 100000
taxableIncome: 77500
tax: 10224.78
effectiveRate: 0.1022
marginalRate: 0.22
- income: 250000
taxableIncome: 227500
tax: 48123.32
effectiveRate: 0.1925
marginalRate: 0.32
- income: 1000000
taxableIncome: 977500
tax: 316955.65
effectiveRate: 0.317
marginalRate: 0.37
changes:
versusYear: 2024
indexingPercent: 2.794
bracketShifts:
single:
- rate: 0.12
from: 11600
to: 11925
shiftPercent: 2.802
- rate: 0.22
from: 47150
to: 48475
shiftPercent: 2.81
- rate: 0.24
from: 100525
to: 103350
shiftPercent: 2.81
- rate: 0.32
from: 191950
to: 197300
shiftPercent: 2.787
- rate: 0.35
from: 243725
to: 250525
shiftPercent: 2.79
- rate: 0.37
from: 609350
to: 626350
shiftPercent: 2.79
married_filing_jointly:
- rate: 0.12
from: 23200
to: 23850
shiftPercent: 2.802
- rate: 0.22
from: 94300
to: 96950
shiftPercent: 2.81
- rate: 0.24
from: 201050
to: 206700
shiftPercent: 2.81
- rate: 0.32
from: 383900
to: 394600
shiftPercent: 2.787
- rate: 0.35
from: 487450
to: 501050
shiftPercent: 2.79
- rate: 0.37
from: 731200
to: 751600
shiftPercent: 2.79
married_filing_separately:
- rate: 0.12
from: 11600
to: 11925
shiftPercent: 2.802
- rate: 0.22
from: 47150
to: 48475
shiftPercent: 2.81
- rate: 0.24
from: 100525
to: 103350
shiftPercent: 2.81
- rate: 0.32
from: 191950
to: 197300
shiftPercent: 2.787
- rate: 0.35
from: 243725
to: 250525
shiftPercent: 2.79
- rate: 0.37
from: 365600
to: 375800
shiftPercent: 2.79
head_of_household:
- rate: 0.12
from: 16550
to: 17000
shiftPercent: 2.719
- rate: 0.22
from: 63100
to: 64850
shiftPercent: 2.773
- rate: 0.24
from: 100500
to: 103350
shiftPercent: 2.836
- rate: 0.32
from: 191950
to: 197300
shiftPercent: 2.787
- rate: 0.35
from: 243700
to: 250500
shiftPercent: 2.79
- rate: 0.37
from: 609350
to: 626350
shiftPercent: 2.79
standardDeduction:
single:
from: 14600
to: 15000
change: 400
changePercent: 2.74
married_filing_jointly:
from: 29200
to: 30000
change: 800
changePercent: 2.74
married_filing_separately:
from: 14600
to: 15000
change: 400
changePercent: 2.74
head_of_household:
from: 21900
to: 22500
change: 600
changePercent: 2.74
CSV Response
200 OK
| key | value |
|---|---|
| year | 2025 |
| country | US |
| type | federal |
| brackets | {single:[{rate:0.1,min:0,max:11924},{rate:0.12,min:11925,max:48474},{rate:0.22,min:48475,max:103349},{rate:0.24,min:103350,max:197299},{rate:0.32,min:197300,max:250524},{rate:0.35,min:250525,max:626349},{rate:0.37,min:626350,max:999999999}],married_filing_jointly:[{rate:0.1,min:0,max:23849},{rate:0.12,min:23850,max:96949},{rate:0.22,min:96950,max:206699},{rate:0.24,min:206700,max:394599},{rate:0.32,min:394600,max:501049},{rate:0.35,min:501050,max:751599},{rate:0.37,min:751600,max:999999999}],married_filing_separately:[{rate:0.1,min:0,max:11924},{rate:0.12,min:11925,max:48474},{rate:0.22,min:48475,max:103349},{rate:0.24,min:103350,max:197299},{rate:0.32,min:197300,max:250524},{rate:0.35,min:250525,max:375799},{rate:0.37,min:375800,max:999999999}],head_of_household:[{rate:0.1,min:0,max:16999},{rate:0.12,min:17000,max:64849},{rate:0.22,min:64850,max:103349},{rate:0.24,min:103350,max:197299},{rate:0.32,min:197300,max:250499},{rate:0.35,min:250500,max:626349},{rate:0.37,min:626350,max:999999999}]} |
| standard_deduction | {single:15000,married_filing_jointly:30000,married_filing_separately:15000,head_of_household:22500} |
| lastUpdated | 2026-02-07T06:02:41.898Z |
| marriagePenalty | {appliesFromRate:0.37,singleThreshold:626350,jointThreshold:751600,jointShortfall:501100} |
| effectiveRateCurve | {single:[{income:25000,taxableIncome:10000,tax:1000,effectiveRate:0.04,marginalRate:0.1},{income:50000,taxableIncome:35000,tax:3961.4,effectiveRate:0.0792,marginalRate:0.12},{income:100000,taxableIncome:85000,tax:13613.78,effectiveRate:0.1361,marginalRate:0.22},{income:250000,taxableIncome:235000,tax:52262.32,effectiveRate:0.209,marginalRate:0.32},{income:1000000,taxableIncome:985000,tax:321468.9,effectiveRate:0.3215,marginalRate:0.37}],married_filing_jointly:[{income:25000,taxableIncome:0,tax:0,effectiveRate:0,marginalRate:0.1},{income:50000,taxableIncome:20000,tax:2000,effectiveRate:0.04,marginalRate:0.1},{income:100000,taxableIncome:70000,tax:7922.9,effectiveRate:0.0792,marginalRate:0.12},{income:250000,taxableIncome:220000,tax:38493.56,effectiveRate:0.154,marginalRate:0.24},{income:1000000,taxableIncome:970000,tax:282961.15,effectiveRate:0.283,marginalRate:0.37}],married_filing_separately:[{income:25000,taxableIncome:10000,tax:1000,effectiveRate:0.04,marginalRate:0.1},{income:50000,taxableIncome:35000,tax:3961.4,effectiveRate:0.0792,marginalRate:0.12},{income:100000,taxableIncome:85000,tax:13613.78,effectiveRate:0.1361,marginalRate:0.22},{income:250000,taxableIncome:235000,tax:52262.32,effectiveRate:0.209,marginalRate:0.32},{income:1000000,taxableIncome:985000,tax:326479.9,effectiveRate:0.3265,marginalRate:0.37}],head_of_household:[{income:25000,taxableIncome:2500,tax:250,effectiveRate:0.01,marginalRate:0.1},{income:50000,taxableIncome:27500,tax:2959.9,effectiveRate:0.0592,marginalRate:0.12},{income:100000,taxableIncome:77500,tax:10224.78,effectiveRate:0.1022,marginalRate:0.22},{income:250000,taxableIncome:227500,tax:48123.32,effectiveRate:0.1925,marginalRate:0.32},{income:1000000,taxableIncome:977500,tax:316955.65,effectiveRate:0.317,marginalRate:0.37}]} |
| changes | {versusYear:2024,indexingPercent:2.794,bracketShifts:{single:[{rate:0.12,from:11600,to:11925,shiftPercent:2.802},{rate:0.22,from:47150,to:48475,shiftPercent:2.81},{rate:0.24,from:100525,to:103350,shiftPercent:2.81},{rate:0.32,from:191950,to:197300,shiftPercent:2.787},{rate:0.35,from:243725,to:250525,shiftPercent:2.79},{rate:0.37,from:609350,to:626350,shiftPercent:2.79}],married_filing_jointly:[{rate:0.12,from:23200,to:23850,shiftPercent:2.802},{rate:0.22,from:94300,to:96950,shiftPercent:2.81},{rate:0.24,from:201050,to:206700,shiftPercent:2.81},{rate:0.32,from:383900,to:394600,shiftPercent:2.787},{rate:0.35,from:487450,to:501050,shiftPercent:2.79},{rate:0.37,from:731200,to:751600,shiftPercent:2.79}],married_filing_separately:[{rate:0.12,from:11600,to:11925,shiftPercent:2.802},{rate:0.22,from:47150,to:48475,shiftPercent:2.81},{rate:0.24,from:100525,to:103350,shiftPercent:2.81},{rate:0.32,from:191950,to:197300,shiftPercent:2.787},{rate:0.35,from:243725,to:250525,shiftPercent:2.79},{rate:0.37,from:365600,to:375800,shiftPercent:2.79}],head_of_household:[{rate:0.12,from:16550,to:17000,shiftPercent:2.719},{rate:0.22,from:63100,to:64850,shiftPercent:2.773},{rate:0.24,from:100500,to:103350,shiftPercent:2.836},{rate:0.32,from:191950,to:197300,shiftPercent:2.787},{rate:0.35,from:243700,to:250500,shiftPercent:2.79},{rate:0.37,from:609350,to:626350,shiftPercent:2.79}]},standardDeduction:{single:{from:14600,to:15000,change:400,changePercent:2.74},married_filing_jointly:{from:29200,to:30000,change:800,changePercent:2.74},married_filing_separately:{from:14600,to:15000,change:400,changePercent:2.74},head_of_household:{from:21900,to:22500,change:600,changePercent:2.74}}} |
Response Structure
All API responses follow a consistent structure with the following fields:
| Field | Type | Description | Example |
|---|---|---|---|
status | string | Indicates whether the request was successful ("ok") or failed ("error") | ok |
error | string | null | Contains error message if status is "error", otherwise null | null |
data | object | null | Contains the API response data if successful, otherwise null | {...} |
Learn more about response formats →
Response Data Fields
When the request is successful, the data object contains the following fields:
| Field | Type | Sample Value | Description |
|---|---|---|---|
year | number | Tax year for the bracket data | |
country | string | Country code for tax data | |
type | string | Which tax the brackets describe, such as federal | |
brackets | object | Array of tax brackets with rates and income ranges | |
| [ ] Array items: | array[7] | Rate bands for a single filer | |
└ rate | number | Marginal rate for the band | |
└ min | number | Income at which the band starts | |
└ max | number | Income at which the band ends; null for the top band | |
| [ ] Array items: | array[7] | Rate bands for married filers filing jointly | |
└ rate | number | Marginal rate for the band | |
└ min | number | Income at which the band starts | |
└ max | number | Income at which the band ends; null for the top band | |
| [ ] Array items: | array[7] | Rate bands for married filers filing separately | |
└ rate | number | Marginal rate for the band | |
└ min | number | Income at which the band starts | |
└ max | number | Income at which the band ends; null for the top band | |
| [ ] Array items: | array[7] | Rate bands for a head of household filer | |
└ rate | number | Marginal rate for the band | |
└ min | number | Income at which the band starts | |
└ max | number | Income at which the band ends; null for the top band |
Headers
Only X-API-Key is required. Optional headers include Accept for response format negotiation (JSON, XML, or YAML), User-Agent, and X-Request-ID for request tracing. See all request headers →
GraphQL AccessALPHA
Access Income Tax Brackets through GraphQL to combine it with other API calls in a single request. Query only the income tax brackets data you need with precise field selection, and orchestrate complex data fetching workflows.
Test Income Tax Brackets in the GraphQL Explorer to confirm availability and experiment with queries.
Credit Cost: Each API called in your GraphQL query consumes its standard credit cost.
GraphQL Endpoint
POST https://api.apiverve.com/v1/graphqlGraphQL Query Example
query {
incometax(
input: {
country: "US"
year: 2024
}
) {
year
country
type
brackets {
single
married_filing_jointly
married_filing_separately
head_of_household
}
standard_deduction {
single
married_filing_jointly
married_filing_separately
head_of_household
}
lastUpdated
marriagePenalty {
appliesFromRate
singleThreshold
jointThreshold
jointShortfall
}
effectiveRateCurve {
single
married_filing_jointly
married_filing_separately
head_of_household
}
changes {
versusYear
indexingPercent
bracketShifts {
single
married_filing_jointly
married_filing_separately
head_of_household
}
standardDeduction {
single {
from
to
change
changePercent
}
married_filing_jointly {
from
to
change
changePercent
}
married_filing_separately {
from
to
change
changePercent
}
head_of_household {
from
to
change
changePercent
}
}
}
}
}Note: Authentication is handled via the x-api-key header in your GraphQL request, not as a query parameter.
CORS Support
The Income Tax Brackets API accepts cross-origin requests from any origin, so it can be called directly from browser-based applications without a proxy. See CORS support →
Rate Limiting
Income Tax Brackets requests are throttled per minute on the Free plan and unthrottled on paid plans. Exceeding the limit returns 429 Too Many Requests; rate-limit usage is reported in the X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset response headers. See per-plan limits and best practices →
Error Codes
The Income Tax Brackets API uses standard HTTP status codes — 200 on success, 400 for invalid parameters, 401 for missing or invalid keys, 403 for insufficient credits, 429 for rate-limit exhaustion, and 500/503 for server-side issues. Each error response includes an X-Request-ID header you can quote when contacting support. See full error handling guide →
SDKs for Income Tax Brackets
Official Income Tax Brackets packages on npm, PyPI, NuGet, and JitPack — plus a Postman collection and an OpenAPI spec. See the SDK guide →
No-Code Integrations
Income Tax Brackets works with Zapier, Make, Pipedream, n8n, and Power Automate using the same API key. See setup guides →
Frequently Asked Questions
How do I get an API key for Income Tax Brackets?
Sign up for a free account at dashboard.apiverve.com. Your API key will be automatically generated and available in your dashboard. The same key works for Income Tax Brackets and all other APIVerve APIs. The free plan includes 1,000 credits plus a 500 credit bonus.
How many credits does Income Tax Brackets cost?
Each successful Income Tax Brackets API call consumes credits based on plan tier. Check the pricing section above for the exact credit cost. Failed requests and errors don't consume credits, so you only pay for successful income tax brackets lookups.
Can I use Income Tax Brackets in production?
The free plan is for testing and development only. For production use of Income Tax Brackets, upgrade to a paid plan (Starter, Pro, or Mega) which includes commercial use rights, no attribution requirements, and guaranteed uptime SLAs. All paid plans are production-ready.
Can I use Income Tax Brackets from a browser?
Yes! The Income Tax Brackets API supports CORS with wildcard configuration, so you can call it directly from browser-based JavaScript without needing a proxy server. See the CORS section above for details.
What happens if I exceed my Income Tax Brackets credit limit?
When you reach your monthly credit limit, Income Tax Brackets API requests will return an error until you upgrade your plan or wait for the next billing cycle. You'll receive notifications at 80% and 95% usage to give you time to upgrade if needed.
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Set up Income Tax Brackets on APIVerve, or reach the same source a different way. Your APIVerve account and credits work on all of them — one key, one balance.
Give it to an AI agentConnect over MCP and your agent calls it as a native tool — Claude, Cursor, ChatGPT.VerveKit →Reference →
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