Free Tools
Free Business & Invoicing Tools
Fast, client-side financial tools to help freelancers, contractors, and agencies calculate margins, late fees, payment terms, and generate instant receipts.
PDF Invoice to Excel (AI)
Extract line items, tax totals, and supplier details into multi-sheet Excel & QuickBooks CSV using multimodal Gemini AI.
UK Statutory Late Payment Calculator
Calculate legal statutory interest (Bank of England + 8%) and fixed £40/£70/£100 compensation under the Late Payment Act.
UK CIS Invoice & DRC Generator
HMRC Construction Industry Scheme invoice generator with 20%/30% labour deductions and domestic reverse charge VAT.
Australia NDIS Invoice Generator
Compliant invoices for NDIS support workers and plan managers with official item codes and GST-free declarations.
Profit Margin Calculator
Calculate gross margin, markup, and net profit instantly.
Late Payment Interest Calculator
Calculate overdue interest and generate reminder emails.
Payment Terms Calculator
Find exact due dates and early discount deadlines based on terms.
Instant Receipt Maker
Generate and print professional receipts instantly.
Free Invoice Generator
Create standard invoices in seconds.
Why use our tools?
Instant Math
All calculations are done instantly in your browser.
Zero Signup
No accounts required to use any of our micro-tools.
Export Ready
Generate PDFs and copy summaries with one click.
Ready to automate your billing?
Start with clients, invoices, reminders, and PDF generation in one place.