Your client's details never leave this browser
There's no server to send them to. Every tool below runs as code in this browser tab, with no account, no upload, and nothing saved anywhere except your own device's local storage.
Most free invoice tools quietly render your invoice on someone else's server and drop a tracking cookie while they're at it. This one can't. There's no backend here at all, so there's nothing for a cookie or a tracker to report back to.
Invoice Generator
Build a clean, professional invoice in your browser and print it to PDF. Line items, discounts, tax, multiple currencies, your own logo.
Open the tool →Late Payment Interest Calculator
Work out interest owed on an overdue invoice: days late, accrued interest, and the new total, with every step shown.
Open the tool →Invoice Payment Terms Explained
What Net 30, Net 15, due on receipt, CIA, 50% upfront, 2/10 net 30, and EOM actually mean: plain language, with a quick-reference table.
Open the tool →Invoice Number Format
Pick a prefix, starting number, year, and separator, and see your actual next five invoice numbers in that format.
Open the tool →Overdue Invoice Reminder Letter
Generate a complete, copyable reminder letter from your invoice details, in a friendly, firm, or final notice tone. Days overdue calculated for you.
Open the tool →Invoice Payment Tracker
Pick your columns, add example rows, and download a payment tracker as a CSV: opens straight into Excel, Google Sheets, or Numbers.
Open the tool →Deposit Invoice Generator
Build a deposit invoice and see the split between what's due now and what's due later. Percentage or fixed amount, print-ready.
Open the tool →Profit and Loss Statement
Add income and expenses by category and watch the net result update live: a quick profit and loss snapshot, not a tax filing.
Open the tool →Year-End Bookkeeping Checklist
Work through income, expenses, bank records, and paperwork, tick items off, add notes, and print the result for your accountant.
Open the tool →Next step
Take it further, in a spreadsheet
These tools run in your browser and keep nothing. When you'd rather have the same thing as a file you own, there are two spreadsheets, depending on how much you want to track.
Start here: one invoice
The Free Invoice Template builds one invoice in Excel or Google Sheets: fill in your business details once on a Settings tab, then get a print-ready invoice that calculates its own subtotal, tax, total, and due date. Three tabs, 34 formulas, no macros. It costs one email address, no account.
Get the free template →When there's more than one invoice to track
The Small Business Finance Kit is a single Excel workbook that picks up where the free template stops: a client list, an invoice log that flags who's paid and who's overdue, an expense tracker, and a dashboard that calculates your revenue, profit, and top clients on its own. Seven tabs, one file, no subscription.
Get the Small Business Finance Kit →