Free tools
Free VAT and invoice calculators
VAT added to or taken out of a price, CIS deductions, late payment interest, due dates and day rates. Every result opens as a ready UK invoice, free and without sign-up.
Calculators
- VAT calculatorAdd VAT to a price or take it out of one, at the UK standard 20% or reduced 5% rate. Free, instant, no sign-up, and it opens as a VAT invoice.
- CIS deduction calculatorWork out the CIS deduction on a subcontractor invoice: 20%, 30% or 0% of labour only, with VAT or the construction reverse charge. Free, no sign-up.
- Late payment interest calculatorWork out statutory interest (8% above the Bank of England base rate) and fixed compensation on a late business invoice in the UK. Free, no sign-up.
- Invoice due date calculatorFind the due date of an invoice from its date and payment terms, with the UK’s 30-day default explained. Free, instant, no sign-up.
- Hourly rate invoice calculatorTurn hours and an hourly or day rate into an invoice total, with VAT at 20% if you are VAT registered. Free, instant, no sign-up.
Frequently asked questions
Are these calculators free?
Yes, all of them, with no sign-up. They run in your browser: nothing you enter is sent to us.
Can I turn a result into an invoice?
Yes. Each calculator has a button that opens our free UK invoice generator with the numbers filled in. Add your details and your customer, and download the PDF.