Free TakeHome API

Q: Is the TakeHome API really free?

Yes. There is no key, no sign-up and no paid tier. Calls are limited to 120 per minute per IP address, and we ask for a visible “Powered by TakeHome” link where you show the numbers.

Q: How accurate are the paycheck numbers?

The API runs the same 2026 engine as our calculators: IRS brackets and standard deductions from Rev. Proc. 2025-32, 2026 FICA (6.2% Social Security up to the wage base, 1.45% Medicare plus 0.9% additional), and each state's 2026 brackets and payroll taxes. Results are annualized estimates; real withholding depends on the W-4 and the employer's payroll system.

Q: Can I call the API from the browser?

Yes. CORS is open (Access-Control-Allow-Origin: *), so fetch() works from any website. Deterministic GET responses are cached at the edge for 24 hours, so repeated calls are fast.

Q: Do I have to show attribution?

It's requested, not enforced. Every response includes meta.attribution and meta.source — a short credit with a link to the matching calculator page is all we ask.

Q: Is there an OpenAPI spec?

Yes, at /api/v1/openapi.json (OpenAPI 3.1). Import it into Postman or Insomnia, or generate a client from it.

Updated October 19, 2026Updated for 2026 tax law

Put 2026 paycheck, tax and salary math in your app with one HTTP call. The TakeHome API returns JSON from the same engines that power our calculators — take-home pay for all 50 states and DC, federal brackets, UK salary after tax, 401(k) and compound-interest projections, mortgage and loan payments, CPI inflation, state cost of living and BLS wages by occupation. No API key, open CORS, free.

Try it

Endpoint

Request

GET https://takehome.tools/api/v1/paycheck?state=TX&salary=75000&frequency=biweekly&filing=single

Response

Edit the parameters and press “Send request” to call the live API.

Quick start

Pick an endpoint below. Every endpoint lives under https://takehome.tools/api/v1/.
Send a GET with query parameters, or a POST with a JSON body (Content-Type: application/json) — same parameters, same response.
Read the result from data. Show meta.attribution with a link to meta.source where people see the numbers.

Endpoints

Endpoint	What it returns
`/api/v1/paycheck`	Take-home pay after federal, FICA, state and local taxes (2026)
`/api/v1/federal-tax`	2026 federal income tax by bracket
`/api/v1/uk-take-home`	UK take-home pay 2026-27: income tax, National Insurance, student loans, pension
`/api/v1/401k`	401(k) balance projection with employer match and 2026 IRS limits
`/api/v1/compound-interest`	Compound interest with monthly contributions
`/api/v1/mortgage`	Mortgage payment (PITI) with PMI, taxes, insurance and extra payments
`/api/v1/loan`	Loan payment, total interest and APR (with origination fee)
`/api/v1/inflation`	US inflation: value of a dollar between two years (CPI-U 1913–2026)
`/api/v1/cost-of-living`	Cost of living between US states: equivalent salary before and after tax
`/api/v1/salary`	Salary by occupation (BLS OEWS wages, national and by state)

`GET /api/v1/paycheck`

Estimate a US paycheck for 2026: federal income tax, Social Security, Medicare, state income tax, state payroll taxes (e.g. CA SDI, NY PFL) and local tax (NYC, Yonkers, Philadelphia). Pass `salary` (annual) or `hourly` + `hours`. Pre-tax 401(k) and health premiums reduce taxable wages. See the calculator →

Parameters

Name	Type	Default	Description
`state` required	string	—	US state: 2-letter code (TX, CA, DC) or name
`salary`	number (0–100000000)	—	Gross annual salary, USD
`hourly`	number (0–5000)	—	Gross hourly wage, USD (instead of salary)
`hours`	number (1–100)	`40`	Hours per week (with hourly)
`weeks`	number (1–52)	`52`	Paid weeks per year (with hourly)
`frequency`	weekly \| biweekly \| semimonthly \| monthly \| annual	`biweekly`	Pay frequency
`filing`	single \| married_joint \| head_of_household	`single`	Federal filing status
`children`	integer (0–15)	`0`	Children under 17 (Child Tax Credit)
`k401`	number (0–100)	`0`	Pre-tax 401(k)/403(b) contribution, % of gross
`health`	number (0–100000000)	`0`	Pre-tax (Section 125) health premiums per year, USD
`locality`	NYC \| YONKERS \| PHILADELPHIA	—	Local income tax, if any

Example request

curl "https://takehome.tools/api/v1/paycheck?state=TX&salary=75000&frequency=biweekly&filing=single"

Example response

Computed by the same engine as the API when this page was built.

{
  "data": {
    "year": 2026,
    "state": {
      "code": "TX",
      "name": "Texas"
    },
    "filing": "single",
    "frequency": "biweekly",
    "paychecks_per_year": 26,
    "per_paycheck": {
      "gross": 2884.62,
      "federal_income_tax": 295,
      "social_security": 178.85,
      "medicare": 41.83,
      "state_income_tax": 0,
      "state_payroll_taxes": 0,
      "local_tax": 0,
      "pretax_401k": 0,
      "pretax_health": 0,
      "net": 2368.94
    },
    "annual": {
      "gross": 75000,
      "federal_income_tax": 7670,
      "social_security": 4650,
      "medicare": 1087.5,
      "state_income_tax": 0,
      "state_payroll_taxes": [],
      "local_tax": 0,
      "pretax_401k": 0,
      "pretax_health": 0,
      "total_tax": 13407.5,
      "net": 61592.5
    },
    "effective_tax_rate": 0.1788,
    "marginal_rates": {
      "federal": 0.22,
      "state": 0
    }
  },
  "meta": {
    "version": "1",
    "docs": "https://takehome.tools/api",
    "source": "https://takehome.tools/texas-paycheck-calculator",
    "attribution": "Powered by TakeHome — https://takehome.tools/texas-paycheck-calculator"
  }
}

`GET /api/v1/federal-tax`

Federal income tax for 2026 with the bracket-by-bracket breakdown, marginal and effective rates. `mode=gross` subtracts the standard deduction first; `mode=taxable` treats `income` as taxable income. See the calculator →

Parameters

Name	Type	Default	Description
`income` required	number (0–100000000)	—	Annual income, USD
`filing`	single \| married_joint \| married_separate \| head_of_household	`single`	Filing status
`mode`	gross \| taxable	`gross`	gross = subtract the standard deduction; taxable = income is already taxable

Example request

curl "https://takehome.tools/api/v1/federal-tax?income=85000&filing=single"

Example response

Computed by the same engine as the API when this page was built.

{
  "data": {
    "year": 2026,
    "filing": "single",
    "gross_income": 85000,
    "standard_deduction": 16100,
    "taxable_income": 68900,
    "tax": 9870,
    "marginal_rate": 0.22,
    "effective_rate_on_taxable": 0.1433,
    "effective_rate_on_gross": 0.1161,
    "room_in_bracket": 36800,
    "brackets": [
      {
        "rate": 0.1,
        "from": 0,
        "to": 12400,
        "taxed_amount": 12400,
        "tax": 1240
      },
      {
        "rate": 0.12,
        "from": 12400,
        "to": 50400,
        "taxed_amount": 38000,
        "tax": 4560
      },
      {
        "rate": 0.22,
        "from": 50400,
        "to": 105700,
        "taxed_amount": 18500,
        "tax": 4070
      },
      "… 4 more"
    ]
  },
  "meta": {
    "version": "1",
    "docs": "https://takehome.tools/api",
    "source": "https://takehome.tools/tax-bracket-calculator",
    "attribution": "Powered by TakeHome — https://takehome.tools/tax-bracket-calculator"
  }
}

`GET /api/v1/uk-take-home`

UK salary after tax for 2026-27 (England, Wales & NI or Scotland): income tax with the personal allowance taper, employee Class 1 NI, student loan plans 1/2/4/5 and postgraduate, and pension contributions (relief at source, net pay or salary sacrifice). Amounts in GBP. See the calculator →

Parameters

Name	Type	Default	Description
`salary` required	number (0–100000000)	—	Gross annual salary, GBP
`region`	ruk \| scotland	`ruk`	ruk = England, Wales & Northern Ireland
`pension_method`	none \| relief_at_source \| net_pay \| salary_sacrifice	`none`
`pension_pct`	number (0–100)	`0`	Employee pension contribution, % of salary
`student_loan`	none \| plan1 \| plan2 \| plan4 \| plan5	`none`
`postgrad_loan`	boolean	`false`	Repaying a postgraduate loan
`tax_code`	string	—	Tax code override (e.g. 1257L, S1257L, BR, K100)

Example request

curl "https://takehome.tools/api/v1/uk-take-home?salary=45000&region=ruk&pension_method=relief_at_source&pension_pct=5&student_loan=plan2"

Example response

Computed by the same engine as the API when this page was built.

{
  "data": {
    "tax_year": "2026-27",
    "region": "ruk",
    "tax_code": "1257L",
    "annual": {
      "gross": 45000,
      "income_tax": 6486,
      "national_insurance": 2594.4,
      "student_loan": 1405.35,
      "postgrad_loan": 0,
      "pension": 2250,
      "take_home": 32714.25
    },
    "monthly_take_home": 2726.19,
    "weekly_take_home": 629.12,
    "personal_allowance": 12570,
    "taxable_income": 32430,
    "effective_rate": 0.2018,
    "marginal_rate": 0.37,
    "employer_ni": 6000,
    "warnings": [],
    "currency": "GBP"
  },
  "meta": {
    "version": "1",
    "docs": "https://takehome.tools/api",
    "source": "https://takehome.tools/uk-salary-calculator",
    "attribution": "Powered by TakeHome — https://takehome.tools/uk-salary-calculator"
  }
}

`GET /api/v1/401k`

Project a 401(k) balance at retirement: monthly contributions, employer match (e.g. 50% up to 6% of salary), salary growth and investment return, capped at the 2026 IRS limits (including age-50 and age 60–63 catch-ups). See the calculator →

Parameters

Name	Type	Default	Description
`age` required	integer (16–80)	—	Current age
`retire_age`	integer (17–90)	`65`	Retirement age
`salary` required	number (0–100000000)	—	Current annual salary, USD
`balance`	number (0–100000000)	`0`	Current 401(k) balance, USD
`contribution_pct`	number (0–100)	`10`	Your contribution, % of salary
`match_pct`	number (0–200)	`50`	Employer matches this % of your contributions
`match_cap_pct`	number (0–100)	`6`	…on contributions up to this % of salary
`salary_growth_pct`	number (-10–20)	`3`	Annual raise, %
`return_pct`	number (-20–30)	`7`	Annual investment return, %
`inflation_pct`	number (0–20)	`2.5`	Inflation for today's-dollars value, %

Example request

curl "https://takehome.tools/api/v1/401k?age=30&retire_age=65&salary=80000&contribution_pct=10&match_pct=50&match_cap_pct=6"

Example response

Computed by the same engine as the API when this page was built.

{
  "data": {
    "years": 35,
    "balance_at_retirement": 2109093.96,
    "balance_in_todays_dollars": 888711.17,
    "your_contributions": 483696.65,
    "employer_contributions": 145109,
    "investment_growth": 1480288.31,
    "limits_2026": {
      "employee_deferral": 24500,
      "base_deferral": 24500,
      "annual_additions": 72000
    },
    "by_year": [
      {
        "age": 31,
        "salary": 80000,
        "you": 8000,
        "employer": 2400,
        "hit_limit": false,
        "balance": 10729.59
      },
      {
        "age": 32,
        "salary": 82400,
        "you": 8240,
        "employer": 2472,
        "hit_limit": false,
        "balance": 22532.14
      },
      {
        "age": 33,
        "salary": 84872,
        "you": 8487.2,
        "employer": 2546.16,
        "hit_limit": false,
        "balance": 35492.41
      },
      "… 32 more"
    ]
  },
  "meta": {
    "version": "1",
    "docs": "https://takehome.tools/api",
    "source": "https://takehome.tools/401k-calculator",
    "attribution": "Powered by TakeHome — https://takehome.tools/401k-calculator"
  }
}

`GET /api/v1/compound-interest`

Future value of a starting balance plus monthly contributions at a nominal annual rate, compounded daily, monthly, quarterly, semiannually, annually or continuously. Rates are in percent (7 = 7%). See the calculator →

Parameters

Name	Type	Default	Description
`principal`	number (0–100000000)	`0`	Starting balance, USD
`monthly`	number (0–100000000)	`0`	Contribution per month, USD
`rate` required	number (-50–100)	—	Nominal annual interest rate, %
`years` required	integer (1–100)	—	Years to grow
`compounding`	daily \| monthly \| quarterly \| semiannually \| annually \| continuously	`monthly`
`timing`	end \| start	`end`	Contributions at the end or start of each month
`contribution_growth_pct`	number (0–50)	`0`	Yearly increase of the monthly contribution, %
`inflation_pct`	number (0–50)	`0`	Inflation for today's-dollars value, %

Example request

curl "https://takehome.tools/api/v1/compound-interest?principal=10000&monthly=500&rate=7&years=20"

Example response

Computed by the same engine as the API when this page was built.

{
  "data": {
    "final_balance": 300850.72,
    "total_contributions": 130000,
    "total_interest": 170850.72,
    "final_balance_in_todays_dollars": 300850.72,
    "apy": 0.0723,
    "by_year": [
      {
        "year": 1,
        "contributions": 16000,
        "interest": 919.19,
        "balance": 16919.19
      },
      {
        "year": 2,
        "contributions": 22000,
        "interest": 2338.58,
        "balance": 24338.58
      },
      {
        "year": 3,
        "contributions": 28000,
        "interest": 4294.31,
        "balance": 32294.31
      },
      "… 17 more"
    ]
  },
  "meta": {
    "version": "1",
    "docs": "https://takehome.tools/api",
    "source": "https://takehome.tools/compound-interest-calculator",
    "attribution": "Powered by TakeHome — https://takehome.tools/compound-interest-calculator"
  }
}

`GET /api/v1/mortgage`

Monthly principal & interest plus property tax, homeowners insurance, PMI (removed per the Homeowners Protection Act at 78% LTV or the loan midpoint) and HOA. Give the down payment in dollars (`down`) or percent (`down_pct`, default 20). See the calculator →

Parameters

Name	Type	Default	Description
`price` required	number (0–100000000)	—	Home price, USD
`down`	number (0–100000000)	—	Down payment, USD
`down_pct`	number (0–100)	—	Down payment, % of price (default 20 when `down` is not given)
`rate` required	number (0–30)	—	Interest rate, % per year
`years`	integer (1–50)	`30`	Loan term, years
`property_tax`	number (0–100000000)	`0`	Property tax per year, USD
`insurance`	number (0–100000000)	`0`	Homeowners insurance per year, USD
`pmi_rate`	number (0–5)	`0.5`	PMI per year, % of the loan (applies when down payment < 20%)
`hoa`	number (0–100000000)	`0`	HOA dues per month, USD
`extra_monthly`	number (0–100000000)	`0`	Extra principal paid every month, USD

Example request

curl "https://takehome.tools/api/v1/mortgage?price=400000&down_pct=10&rate=6.5&years=30&property_tax=4800&insurance=1500"

Example response

Computed by the same engine as the API when this page was built.

{
  "data": {
    "loan_amount": 360000,
    "down_payment": 40000,
    "ltv": 0.9,
    "monthly": {
      "principal_interest": 2275.44,
      "property_tax": 400,
      "insurance": 125,
      "pmi": 150,
      "hoa": 0,
      "total": 2950.44
    },
    "pmi": {
      "months": 109,
      "ends": "78%",
      "total": 16350
    },
    "payoff_months": 360,
    "totals": {
      "interest": 459164,
      "property_tax": 144000,
      "insurance": 45000,
      "pmi": 16350,
      "hoa": 0,
      "all_payments": 1024514
    },
    "extra_payments": null
  },
  "meta": {
    "version": "1",
    "docs": "https://takehome.tools/api",
    "source": "https://takehome.tools/mortgage-calculator",
    "attribution": "Powered by TakeHome — https://takehome.tools/mortgage-calculator"
  }
}

`GET /api/v1/loan`

Fixed-rate installment loan (personal, auto, any amortizing loan): monthly payment, total interest and the true APR when an origination fee is deducted from the proceeds or added to the balance. See the calculator →

Parameters

Name	Type	Default	Description
`amount` required	number (0–100000000)	—	Loan amount, USD
`rate` required	number (0–100)	—	Interest rate, % per year
`months` required	integer (1–600)	—	Term in months
`fee_pct`	number (0–50)	`0`	Origination fee, % of the amount
`fee_mode`	deducted \| added	`deducted`	Fee taken from the proceeds, or financed on top

Example request

curl "https://takehome.tools/api/v1/loan?amount=20000&rate=9.5&months=60"

Example response

Computed by the same engine as the API when this page was built.

{
  "data": {
    "monthly_payment": 420.04,
    "total_paid": 25202.23,
    "total_interest": 5202.23,
    "principal": 20000,
    "fee": 0,
    "cash_received": 20000,
    "cost_of_borrowing": 5202.23,
    "apr": 9.5
  },
  "meta": {
    "version": "1",
    "docs": "https://takehome.tools/api",
    "source": "https://takehome.tools/loan-calculator",
    "attribution": "Powered by TakeHome — https://takehome.tools/loan-calculator"
  }
}

`GET /api/v1/inflation`

What an amount of money in one year is worth in another, using the BLS CPI-U (U.S. city average). Full years use the annual average; 2026 uses the latest month (September 2026). See the calculator →

Parameters

Name	Type	Default	Description
`amount`	number (0–1000000000000)	`100`	Dollar amount
`from` required	integer (1913–2026)	—	Year the amount is from
`to`	integer (1913–2026)	`2026`	Year to express it in

Example request

curl "https://takehome.tools/api/v1/inflation?amount=100&from=2000&to=2026"

Example response

Computed by the same engine as the API when this page was built.

{
  "data": {
    "amount": 100,
    "from": 2000,
    "to": 2026,
    "value": 195.67,
    "cumulative_inflation": 0.9567,
    "average_annual_rate": 0.0259,
    "cpi_from": 172.2,
    "cpi_to": 336.94,
    "latest_data": "September 2026",
    "series": "CUUR0000SA0"
  },
  "meta": {
    "version": "1",
    "docs": "https://takehome.tools/api",
    "source": "https://takehome.tools/inflation-calculator",
    "attribution": "Powered by TakeHome — https://takehome.tools/inflation-calculator"
  }
}

`GET /api/v1/cost-of-living`

Compare price levels between two states with BEA Regional Price Parities (2024 data) and 2026 state + federal taxes: the salary you need in `to` to keep the same purchasing power, by prices alone and after taxes. See the calculator →

Parameters

Name	Type	Default	Description
`salary` required	number (0–100000000)	—	Current gross annual salary, USD
`from` required	string	—	Current state (code or name)
`to` required	string	—	State you're comparing with (code or name)
`filing`	single \| married_joint \| head_of_household	`single`	Federal filing status

Example request

curl "https://takehome.tools/api/v1/cost-of-living?salary=90000&from=TX&to=CA"

Example response

Computed by the same engine as the API when this page was built.

{
  "data": {
    "salary": 90000,
    "from": {
      "code": "TX",
      "name": "Texas",
      "price_index": 97.057
    },
    "to": {
      "code": "CA",
      "name": "California",
      "price_index": 110.72
    },
    "price_difference": 0.1408,
    "equivalent_salary": 102669.57,
    "equivalent_salary_after_tax": 115859.49,
    "take_home": {
      "current": 72145,
      "needed_in_to": 82301.06,
      "same_salary_in_to": 66850.02
    },
    "purchasing_power_change_same_salary": -0.1877,
    "categories": [
      {
        "category": "goods",
        "from": 98.083,
        "to": 106.098,
        "difference": 0.0817
      },
      {
        "category": "housing",
        "from": 96.503,
        "to": 154.346,
        "difference": 0.5994
      },
      {
        "category": "utilities",
        "from": 87.512,
        "to": 158.899,
        "difference": 0.8157
      },
      {
        "category": "otherServices",
        "from": 97.081,
        "to": 102.591,
        "difference": 0.0568
      }
    ],
    "rpp_year": 2024
  },
  "meta": {
    "version": "1",
    "docs": "https://takehome.tools/api",
    "source": "https://takehome.tools/cost-of-living-calculator",
    "attribution": "Powered by TakeHome — https://takehome.tools/cost-of-living-calculator"
  }
}

`GET /api/v1/salary`

Wages for an occupation from BLS Occupational Employment and Wage Statistics (May 2025): median, mean and 10th–90th percentile annual pay, hourly median and employment. Search by job title (`nurse`, `software engineer`) or SOC code; add `state` for that state's median. See the calculator →

Parameters

Name	Type	Default	Description
`occupation` required	string	—	Job title or SOC code, e.g. 'electrician' or '47-2111'
`state`	string	—	Optional state (code or name) for state wages
`limit`	integer (1–10)	`3`	Number of matches to return

Example request

curl "https://takehome.tools/api/v1/salary?occupation=registered+nurse&state=CA&limit=1"

Example response

Computed by the same engine as the API when this page was built.

{
  "data": {
    "release": "BLS OEWS May 2025",
    "results": [
      {
        "occupation": "Registered Nurse",
        "bls_title": "Registered Nurses",
        "soc": "29-1141",
        "group": "Healthcare Practitioners and Technical Occupations",
        "national": {
          "median_annual": 97550,
          "mean_annual": 101420,
          "median_hourly": 46.9,
          "percentiles_annual": {
            "p10": 68940,
            "p25": 80330,
            "p50": 97550,
            "p75": 112350,
            "p90": 137470
          },
          "employment": 3379720
        },
        "state": {
          "code": "CA",
          "name": "California",
          "median_annual": 140270,
          "mean_annual": 150280,
          "employment": 338940
        },
        "url": "https://takehome.tools/registered-nurse-salary"
      }
    ]
  },
  "meta": {
    "version": "1",
    "docs": "https://takehome.tools/api",
    "source": "https://takehome.tools/registered-nurse-salary",
    "attribution": "Powered by TakeHome — https://takehome.tools/registered-nurse-salary"
  }
}

Response format

Successful calls return HTTP 200 with the result in data and links in meta:

{
  "data": {
    "…": "…"
  },
  "meta": {
    "version": "1",
    "docs": "https://takehome.tools/api",
    "source": "https://takehome.tools",
    "attribution": "Powered by TakeHome — https://takehome.tools"
  }
}

Errors

`400`	Invalid or missing parameters. details lists each problem as { param, message }.
`404`	Unknown endpoint on this domain (each site serves only its own calculators).
`429`	Rate limit exceeded. Wait for the number of seconds in the Retry-After header.

{
  "error": "Invalid parameters.",
  "details": [
    {
      "param": "state",
      "message": "Invalid input: expected number, received string"
    }
  ],
  "docs": "https://takehome.tools/api"
}

Rate limits and caching

120 requests per minute per IP address. Over the limit you get 429 with Retry-After.
No API key, no sign-up. CORS is open (Access-Control-Allow-Origin: *), so you can call it from the browser.
Deterministic GET responses are cached at the edge for 24 hours (Cache-Control: public, s-maxage=86400); cache them on your side too.
Random generators and POST responses are never cached.
Need more? Email us — we're happy to raise limits for reasonable use.

Attribution

The API is free. In return we ask (but don't enforce) a visible credit with a followed link to the page in meta.source wherever you show results:

<a href="https://takehome.tools">Powered by TakeHome</a>

OpenAPI spec

A machine-readable OpenAPI 3.1 description of every endpoint is at https://takehome.tools/api/v1/openapi.json — import it into Postman, Insomnia, or a client generator.

Terms

Use of the API is covered by our Terms of Use. Results are estimates for information only — not tax, legal or financial advice — and TakeHome is provided as is, without warranty. Don't resell raw access, hammer the endpoints, or present the numbers as your own engine's. We may change or rate-limit the API; breaking changes get a new version (/api/v2).

Frequently asked questions

Is the TakeHome API really free?

Yes. There is no key, no sign-up and no paid tier. Calls are limited to 120 per minute per IP address, and we ask for a visible “Powered by TakeHome” link where you show the numbers.

How accurate are the paycheck numbers?

The API runs the same 2026 engine as our calculators: IRS brackets and standard deductions from Rev. Proc. 2025-32, 2026 FICA (6.2% Social Security up to the wage base, 1.45% Medicare plus 0.9% additional), and each state's 2026 brackets and payroll taxes. Results are annualized estimates; real withholding depends on the W-4 and the employer's payroll system.

Can I call the API from the browser?

Yes. CORS is open (Access-Control-Allow-Origin: *), so fetch() works from any website. Deterministic GET responses are cached at the edge for 24 hours, so repeated calls are fast.

Do I have to show attribution?

It's requested, not enforced. Every response includes meta.attribution and meta.source — a short credit with a link to the matching calculator page is all we ask.

Is there an OpenAPI spec?

Yes, at /api/v1/openapi.json (OpenAPI 3.1). Import it into Postman or Insomnia, or generate a client from it.

Your business here? Sponsor this calculator from $19/week. See placements

Estimates for information only — not tax, legal or financial advice.

Try it

Quick start

Endpoints

GET /api/v1/paycheck

Parameters

Example request

Example response

GET /api/v1/federal-tax

Parameters

Example request

Example response

GET /api/v1/uk-take-home

Parameters

Example request

Example response

GET /api/v1/401k

Parameters

Example request

Example response

GET /api/v1/compound-interest

Parameters

Example request

Example response

GET /api/v1/mortgage

Parameters

Example request

Example response

GET /api/v1/loan

Parameters

Example request

Example response

GET /api/v1/inflation

Parameters

Example request

Example response

GET /api/v1/cost-of-living

Parameters

Example request

Example response

GET /api/v1/salary

Parameters

Example request

Example response

Response format

Errors

Rate limits and caching

Attribution

OpenAPI spec

Terms

Related

Frequently asked questions

`GET /api/v1/paycheck`

`GET /api/v1/federal-tax`

`GET /api/v1/uk-take-home`

`GET /api/v1/401k`

`GET /api/v1/compound-interest`

`GET /api/v1/mortgage`

`GET /api/v1/loan`

`GET /api/v1/inflation`

`GET /api/v1/cost-of-living`

`GET /api/v1/salary`