Invoice Counter
Generate sequential invoice numbers and track invoice totals. Perfect for freelancers and small businesses that need simple invoice number management.
New Invoice
Invoices
No invoices yet
Dashboard
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Use this tool →How to Use
Set Your Invoice Prefix
Configure the prefix (e.g. INV, BILL) and the next invoice number auto-increments.
Add Invoices with Amounts
Enter the amount and optional client name. Each invoice gets a sequential number automatically.
Track Totals and Mark Paid
View your dashboard for totals and averages. Click to toggle invoices between paid and unpaid.
About This Tool
Generate sequential invoice numbers and track invoice totals. Perfect for freelancers and small businesses that need simple invoice number management.
Generate sequential invoice numbers with a configurable prefix, track amounts and payment status, and see your invoicing totals at a glance. Mark invoices as paid or unpaid and filter your list to stay organized.
All data is stored locally in your browser and never uploaded to any server. No registration required.
Sequential Numbering
Invoice numbers auto-increment from your chosen starting point, so you never skip or duplicate a number.
Custom Prefixes
Set any prefix such as INV, BILL, or REC to match your existing invoicing convention.
Amount & Payment Tracking
Log amounts for each invoice and toggle between paid and unpaid status to keep your books current.
Learn More
Freelance Invoicing — Generate consistent invoice numbers for client work and track which invoices are still outstanding.
Small Business Billing — Maintain a clear numbering sequence across all your invoices with totals and averages on the dashboard.
Payment Tracking — Mark invoices as paid or unpaid and filter the list to see exactly what is still owed.
Frequently Asked Questions
Authoritative Sources
Standards and research behind this tool, from official specifications to peer-reviewed studies.
Financial record-keeping depends on unambiguous currency identification. ISO 4217 is the international standard that assigns a three-letter code to every world currency — USD, EUR, JPY — so amounts recorded by a cash counter or an invoice tally stay clear across borders and accounting systems. It also defines each currency's minor-unit relationship, such as whether it divides into 100 or 1000 subunits, which matters when counting cents.