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Free UK calculators plus the everyday software that saves small companies hours.
Last updated 19 June 2026Free calculators
£
%
years
Monthly payment
£0
Total repaid£0
Total interest£0
Estimate only. Excludes fees, insurance and any rate changes.
£
%
years
Monthly payment
£0
Total repaid£0
Total interest£0
Representative estimate. Your actual rate depends on status.
£
%
£
Time to clear
0
Total interest paid£0
Assumes the rate and payment stay the same and no new spending.
£
Stamp duty (SDLT)
£0
Effective rate0%
England residential rates. Verify current SDLT bands before publishing — they change at Budgets.
£
£
%
Final balance
£0
You put in£0
Interest earned£0
Assumes monthly compounding and a fixed rate.
£
Net (ex VAT)
£0
VAT (20%)£0
Gross (inc VAT)£0
Standard UK VAT rate of 20%.
£
Take-home pay (year)
£0
Income tax£0
National Insurance£0
Monthly take-home£0
England, 2025/26 estimate. Excludes pension, student loan & other deductions. Verify rates before publishing.
Working demo calculators — wire each one to relevant affiliate links (e.g. a mortgage or loan provider) once live, since that's where they earn.
Software & tools
| Tool | Category | Our rating | Best for | Free trial | |
|---|---|---|---|---|---|
| XeXeroAccounting | Accounting | 9.0 | What accountants ask for | Yes | Start trial → |
| QBQuickBooksAccounting | Accounting | 8.7 | Sole-director companies | Yes | Start trial → |
| FAFreeAgentAccounting | Accounting | 8.6 | Contractors & freelancers | Yes | Start trial → |
| SZSumUp / ZettleCard readers | Card readers | 8.5 | Taking payments in person | PAYG | See readers → |
| SaSageAccounting | Accounting | 8.3 | Growing teams | Yes | Start trial → |
| SqSquareCard readers | Card readers | 8.2 | POS plus online | PAYG | See Square → |
| ZoZoho BooksAccounting | Accounting | 8.1 | Value & Zoho users | Yes | Start trial → |
| FrFreshBooksInvoicing | Invoicing | 8.0 | Invoicing & time tracking | Yes | Start trial → |
| CrCrunchAccounting | Accounting | 7.8 | Accountant + software | Yes | See Crunch → |
Logos shown are placeholders — swap in each provider's official logo from your affiliate programme's asset library before launch.
These are everyday business tools, not regulated financial products — so there's nothing to be wary of beyond picking the one that fits how you work.