Life & fun · alternatives · 2026

24 alternatives to Simple R&D Tax Calculator (HMRC/UK)

Free online r&d tax credit claim calculator

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Simple R&D Tax Calculator (HMRC/UK) launched in 2020; newer entries below may have overtaken it.

1. 1
   R&D tax credit calculator▲66

   Calculate your R&D tax credit estimate in under 60 seconds

   2018 · highpeakaz.com · its alternatives →

2. 2
   Claimer▲96

   Hassle-free R&D tax credits for UK startups

   2021 · claimer.com · its alternatives →

3. 3
   RDvault R&D Tax Credits Claim Estimator▲15

   Slow your UK startup’s burn rate in five minutes

   2020 · rdvault.co.uk · its alternatives →

4. 4
   TaxWorkz.co.uk▲12

   UK R&D Tax Relief made easy

   2025 · taxworkz.co.uk · its alternatives →

5. 5
   Startup R&D Tax Credit Calculator▲3

   R&D Tax Credit Calculator That Shows Your Startup's Savings

   2017 · kruzeconsulting.com · its alternatives →

6. 6
   neo.tax▲161

   automated R&D tax credits for startups = extra month of burn

   2020 · neo.tax · its alternatives →

7. 7
   Taxnova▲68

   R&D Tax Credits for Tech Companies

   Apr 2026 · taxnova.ai · its alternatives →

8. 8
   Pilot R&D Tax Credit▲9

   Save your business up to $250k with the R&D tax credit

   2020 · pilot.com · its alternatives →

9. 9
   Affordable MTD▲8

   The simplest Making Tax Digital software - free for 2026-27

   Jul 2026 · affordablemtd.com · its alternatives →

10. 10
    The Hattusia ethics ROI calculator▲72

    Just add your market size, market share and R&D costs

    2020 · hattusia.com · its alternatives →

11. 11
    Taxily▲84

    Unlock your finances with our suite of finance calculators

    2022 · its alternatives →

12. 12
    taxcalculatorsuk.co.uk▲5

    25+ free UK tools for finance, wellness & daily life

    2025 · taxcalculatorsuk.co.uk · its alternatives →

13. 13
    The rad app▲6

    Claim your R&D tax credit insanely fast.

    2017 · theradapp.com · its alternatives →

14. 14
    Werapay▲73

    Generate payslips easily

    2021 · its alternatives →

15. 15
    UK Income tax calculator▲6

    Get your tax estimate now!

    2025 · pie.tax · its alternatives →

16. 16
    UK Side Hustle Tax Calculator▲5

    Free UK extra income tax calculator for 2025/26. Estimate Income Tax and Class 4 National Insurance on side hustle and other extra income alongside PAYE salary, expenses, trading allowance and HMRC Self Assessment deadlines.

    2024 · sidehustletaxcalculator.uk · its alternatives →

17. 17
    Child Tax Credit Calculator▲6

    Maximum refund estimator

    2025 · its alternatives →

18. 18
    CodeClaim

    Git commits to HMRC-ready R&D tax credit reports

    Mar 2026 · its alternatives →

19. 19
    TaxSight▲3

    Free UK tax calculators with 200+ pre-built salary pages

    Apr 2026 · taxsight.co.uk · its alternatives →

20. 20
    VAT Calculator▲8

    Add or Remove VAT Instantly — Free UK Calculator

    2025 · bird.ac · its alternatives →

21. 21
    FIG Tracker▲2

    Free UK tax relief calculator for overseas workdays

    Jul 2026 · figtax.co.uk · its alternatives →

22. 22
    TaxNav▲6

    Making tax digital for income tax

    2025 · taxnav.digital · its alternatives →

23. 23
    Free Self-Employed Tax Calculator▲16

    Tax calculation for self-employed professionals in Portugal

    2025 · its alternatives →

24. 24
    Tax Cloud▲6

    An online R&D Tax Relief claim portal for small businesses.

    2017 · taxcloud.co.uk · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →