About LedgerKit
Clear, practical financial tools for everyday UK business calculations.
A useful companion to the working day
LedgerKit exists to make everyday UK business calculations clearer. It brings VAT, CIS, gross profit, mileage and late-payment interest into one focused collection, without registration or spreadsheets.
Show the working
Each tool explains its method, shows a useful breakdown and identifies the relevant rate or tax year. Results are estimates based on your entries, not a substitute for professional judgement.
Private by design
Calculator inputs are processed in your browser. LedgerKit does not intentionally save or transmit calculation values. You decide whether to copy or print a result.
Independent and focused
LedgerKit is not affiliated with or endorsed by HMRC or GOV.UK. Official links help you check the rules. More practical tools may be added over time.
Who runs LedgerKit
LedgerKit is operated by Jamhawks Trading Ltd, a company registered in England and Wales under company number 11906106. Changeable rates are checked against the official sources linked on each relevant calculator, with the last-reviewed date shown on the page. For questions, corrections or suggestions, email jamhawkstrading@gmail.com.
Last updated 04/09/2026
Explore the calculators