Calculate the real rate you need, create clean invoices, and work out late payment interest — all in your browser. No accounts. No tracking. No cost.
See the hourly and day rate you actually need after taxes, expenses, time off, and non-billable hours.
Create professional PDF invoices in seconds. Your data never leaves your device.
Quickly work out statutory or agreed interest on overdue invoices.
Built for freelancers, solopreneurs & independent workers · 100% free forever
Calculate the real hourly and day rate you need after taxes, expenses, time off, and non-billable work.
Most freelancers undercharge because they only think about desired salary and forget taxes, non-billable time, and expenses. This calculator forces the honest number. Adjust the inputs to match your situation. This is a planning tool, not tax advice.
Create a clean professional invoice. Everything stays in your browser. Download a PDF when ready.
PDF is generated entirely in your browser. Nothing is uploaded. Use “Save my details” to remember your business info for next time (stored only on this device).
Calculate simple interest owed on overdue invoices using a day-count method.
Many places allow statutory interest on late commercial payments (commonly base rate + 8%). Always check the rules that apply to your contract and jurisdiction. This is a simple calculator only.