Finance & Accounting·Standings

Compare Tax Calculators by Features and Platforms

Tax calculators estimate taxes or help prepare a return; compare the tax jurisdictions and income types they handle, plus filing status and tax year support.

Use the signal score out of 10 as one comparison point. Check the API, open-source, and free-tier marks too, then confirm that a tool runs on your platform.

  • 30 platforms
  • 1 with a public API on this page
  • 24 with a free tier
  • Checked 5 Oct 2026
  1. 1
    HR
    H&R Block Onlinehrblock.com
    6.6 APIOpenFree Free tier
  2. 2
    F
    FreeTaxUSAfreetaxusa.com

    Tax preparation software with a free option, available on the web, iOS and Android.

    6.6 APIOpenFree Free tier · $7.99 one-time
  3. 3
    T
    TaxSlayertaxslayer.com

    Tax filing software for web, Android and iOS includes a free option and covers investments and self-employment.

    6.6 APIOpenFree Free tier · $44.99 one-time
  4. 4
    CO
    Common Offline Utility for ITRincometax.gov.in

    A free Windows and Mac program prepares Indian ITR forms 1–4, including self-employment and rental income.

    6.4 APIOpenFree Free tier
  5. 5
    T
    TaxActtaxact.com
    6.3 APIOpenFree Free tier
  6. 6
    T
    TurboTaxturbotax.intuit.com
    6.3 APIOpenFree Free tier
  7. 7
    S
    SimpleFilecanada.ca

    A free web service for Canadian tax filing, with investment income support but no self-employment or rental income.

    6.2 APIOpenFree Free tier
  8. 8
    T
    TaxJartaxjar.com

    A sales tax service with an API for tax calculations and return filing, from $39 per month.

    5.8 APIOpenFree From $39/mo
  9. 9
    NT
    5.1 APIOpenFree Free tier
  10. 10
    HI
    HMRC Income Tax Estimategov.uk

    A free web and mobile tool estimates your UK tax deduction and net pay.

    5.1 APIOpenFree Free tier
  11. 11
    OC
    Omni Calculatoromnicalculator.com

    A web and Android calculator offers financial, scientific, graphing and equation-solving tools.

    5.0 APIOpenFree Free tier
  12. 12
    TH
    4.9 APIOpenFree Free tier
  13. 13
    TC
    Tax Calculatortaxact.com
    4.9 APIOpenFree Free tier
  14. 14
    PP
    4.8 APIOpenFree Free tier
  15. 15
    SP
    SmartAsset Paycheck Calculatorsmartasset.com

    A free web tool shows estimated pay after taxes for wages, salary and overtime.

    4.8 APIOpenFree Free tier
  16. 16
    AS
    4.8 APIOpenFree Free tier
  17. 17
    AI
    Australian Income Tax Calculatormoneysmart.gov.au

    A web tool projects your net earnings, tax bracket and possible refund from taxable income.

    4.8 APIOpenFree Free tier
  18. 18
    FI
    Federal Income Tax Calculator by SmartAssetsmartasset.com

    A web tool estimates 2025 taxes and net pay using household income and deductions.

    4.8 APIOpenFree Free tier
  19. 19
    GU
    GOV.UK Self Assessment Tax Calculatorgov.uk

    A free UK web tool estimates tax on self-employment profits, rental income and pensions.

    4.8 APIOpenFree Free tier
  20. 20
    HP
    4.8 APIOpenFree Free tier
  21. 21
    IT
    4.8 APIOpenFree Free tier
  22. 22
    II
    India Income Tax Calculatorincometaxindia.gov.in
    4.8 APIOpenFree Free tier
  23. 23
    IR
    4.8 APIOpenFree Free tier
  24. 24
    IT
    4.8 APIOpenFree Free tier
  25. 25
    NZ
    New Zealand PAYE.net.nz Calculatorpaye.net.nz

    A web tool estimates net pay after PAYE and ACC charges on wages or secondary income.

    4.8 APIOpenFree Free tier

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How to choose

Does it cover the tax jurisdiction you need?

Start with the country or tax authority relevant to your return. Tools include options for Australia, India, the United Kingdom, and federal income tax in the United States, so check the calculator's stated scope before entering figures.

Can it handle your income sources and filing status?

Compare the income sources and filing statuses a calculator supports with your own situation. A salary paycheck calculator, for example, focuses on estimating take-home pay from salary rather than covering every kind of tax calculation.

Does it support the tax year you need?

Check the supported tax year before relying on an estimate or starting a return. Tax rules and rates can vary by year, so use a tool that matches the period you are filing for.

Can you use it on your device?

Most tools on this board run on the web. A smaller number list Android or iOS support, while macOS, Windows, and API access are also represented; check the platform marks for the calculator you are considering.

Is there a free plan or trial?

A free plan can let you use a calculator without a subscription, but check what it includes. Free plans and free trials are different: a trial gives temporary access, while a plan may be available without a time limit.

Questions

What should I compare when choosing a tax calculator?

Check tax jurisdiction, calculator type, income sources, filing statuses, and tax years. Then confirm the platform and whether its plan is free.

Are tax calculators free to use?

Most tools on this board have a free plan. Check the individual listing for its pricing details; a free plan is not the same as a free trial.

Can I find a tax calculator for my country?

The listed examples include calculators for Australia, India, the United Kingdom, and U.S. federal income tax. Confirm that a tool covers your jurisdiction.

Do tax calculators work on phones?

Some list Android or iOS support, while web is the most commonly listed platform. Check the platform marks for the tool you want.

Can I connect a tax calculator through an API?

API access is listed for one tool. Check its listing for details before planning an integration.

Some top positions on this board can be paid placements, standing where they were sold. The facts on each platform are not for sale. How we rank · Disclosure