Free invoicing tools

Free tools for freelancers and small businesses

Calculators, generators, and helpers built around invoicing, late payments, and getting paid faster. No signup, no paywall, just useful tools.

Late Fee Calculator

Work out exactly what to charge a client when they miss a due date — with monthly, annual, daily, or flat fees, plus a grace period and a copy-ready invoice line.

#calculator#late-payment#invoicing

Due Date Calculator

Pick an invoice date and a payment term — Net 7, Net 30, Net 60, EOM, or your own. Get the exact due date back, with optional weekend roll-forward and a line you can paste straight into your invoice.

#calculator#payment-terms#invoicing

Freelance Rate Calculator

Reverse-engineer the rate you need to charge from a target take-home salary, your real overhead, and the billable hours you actually work — not the 40-hour week you wish you did.

#calculator#pricing#freelance

Sales Tax Calculator

Calculate sales tax, VAT, or GST on any invoice in seconds. Add tax to a net amount or pull it back out of a tax-inclusive total — with preset rates for the UK, EU, US states, Canada, Australia, Japan, and China.

#calculator#tax#vat

Pro-rata Calculator

Work out exactly what to bill when a client joins, leaves, or upgrades mid-cycle — calendar days, 30-day month, or a custom period, with a copy-ready invoice line.

#calculator#subscription#billing

Retainer Fee Calculator

Work out exactly what to charge a client up front — whether that's a project deposit or a recurring monthly retainer — with the math and a copy-ready invoice line.

#calculator#retainer#freelance

Currency Exchange Invoice Helper

Convert any invoice amount between 12 major currencies, lock the exchange rate at the invoice date, and paste a clean FX disclosure line straight into your bill.

#calculator#currency#international

Billable Hours Ratio Calculator

See exactly how much of your week turns into billable hours — with a utilization rate, benchmark coloring, and projected weekly, monthly, and annual revenue at your hourly rate.

#calculator#productivity#freelance

Billable Hours Rounding Tool

Round a single time entry — or a full day's worth — to the billing increment your contract uses. Supports 6, 10, 15, and 30-minute rules with round up, nearest, or down.

#calculator#time-tracking#billable-hours

Invoice Discount Calculator

Run any discount three ways — straight percentage off, a flat amount off, or a 2/10 net 30 early payment offer — and copy the exact wording into your invoice.

#calculator#discount#invoicing

Invoice Email Templates

Six copy-ready invoice email templates — from sending the first bill through gentle reminders, firm follow-ups, and final notice. Variables fill in automatically; the tone escalates so you don't have to.

#templates#email#invoicing

Invoice Terms & Conditions Generator

Build a clean Terms & Conditions block for any invoice — payment term, late fee, accepted methods, dispute window, and ownership transfer — with industry presets you can edit in seconds.

#generator#terms#legal

Invoice Numbering System Generator

Pick a clean invoice number format — sequential, year-based, client-based, or hybrid — preview the next five numbers in the sequence, and copy the spec straight into your accounting tool.

#generator#numbering#invoicing

Invoice Compliance Checklist

Audit any invoice against the rules that actually apply to your client — required vs recommended fields, region by region, with a copy-ready summary you can keep on file.

#checklist#compliance#invoicing

Free Quote Builder for Freelancers

Build a clean, professional quote with line items, a valid-until date, and a one-click path to convert it into an invoice the moment your client says yes.

#generator#quote#estimate

Receipt to Invoice Builder

Drop in your receipts — flights, software, mileage, materials — and get a clean, itemized expense reimbursement block ready to paste into your next invoice.

#generator#expense#reimbursement

Recurring Invoice Scheduler

Map out a recurring billing schedule for any retainer or subscription client — pick a cadence, preview the next 12 invoices, and export the whole calendar as a .ics file.

#scheduler#recurring#subscription

Payment Link Helper for Invoices

Paste your Stripe, PayPal, Wise, Square, or Venmo link and get three copy-ready blocks — an HTML email button, a markdown link, and a plain-text 'How to pay' instruction — for any invoice.

#helper#payment#stripe

Freelance Business Name Generator

Combine your name, your service, and a professional suffix to get business name ideas that actually look good on an invoice — with one-click .com and Instagram handle checks.

#generator#naming#freelance

Free Logo Placeholder Generator

Build a clean text logo for your invoice header in seconds — five typographic layouts, six fonts, transparent background, and SVG or PNG download.

#generator#logo#branding

Free Purchase Order Generator

Build a clean, vendor-ready purchase order with line items, tax, shipping, and standard payment terms — live preview on the right, print or download when you're done.

#generator#purchase-order#procurement