About Invoice Builder
Invoice Builder generates clean, professional invoices ready to send to a client. Add line items with quantity and rate, the totals (subtotal, tax, discount, grand total) recalculate live. Multi-currency support covers USD, EUR, GBP, INR, CAD, AUD and more — both symbol and ISO code are rendered correctly. Drop your business logo, save the result as a print-ready PDF. Everything stays on your device — autosaved locally so you can edit or duplicate previous invoices.
- No uploads
- Browser-only
- Works offline
- 100% free
How it works
- 1
Fill in the parties
Your business details, the client's, an invoice number and dates. Add a logo if you want — it lives in local storage so future invoices pick it up automatically.
- 2
Add line items
Each row has description, quantity and unit price. The subtotal updates as you type. Add tax percent, a discount or notes for the client.
- 3
Export PDF
Generate a clean A4 (or US Letter) PDF locally and download. Send it as an email attachment — no third-party invoicing service involved.
What makes an invoice an invoice (not just a bill)
An invoice is a legal request for payment, and most jurisdictions expect a specific set of fields before it counts as one. Miss them and a client's accounts department can — quite reasonably — bounce it back, delaying your payment by a full cycle. The non-negotiables are: a unique invoice number, the issue date, your details and the client's details, a clear description of what's being charged with quantities and unit prices, the amount due, and the payment terms and due date. Where sales tax or VAT applies, the tax rate and tax amount must be shown as separate lines, and in VAT regimes your registration number usually has to appear too.
The invoice number deserves special care because it's the field people treat most casually and regulators treat most strictly. It must be unique and, in many tax systems, sequential with no gaps — INV-0007 cannot be followed by INV-0006. A clean scheme like INV-2026-0042 sorts correctly, reads unambiguously, and survives an audit. Pick a format on invoice one and never break the sequence.
The fields, and why each one earns its place
| Field | Why it must be there |
|---|---|
| Unique invoice number | Lets both sides reference the exact document; often legally required to be sequential |
| Issue date + due date | Starts the payment clock and makes 'overdue' an objective fact |
| Your + client's full details | Establishes who owes whom; the legal parties to the transaction |
| Line items (qty x unit price) | Itemised charges the client can verify and approve line by line |
| Tax rate and tax amount | Shown separately so the client can reclaim it and you can remit it correctly |
| Total due + payment terms | States the obligation and the deadline: 'Net 30', bank details, accepted methods |
Exact requirements vary by country and tax status — confirm against your local tax authority's invoice rules before relying on a template.
For freelancers — and what this tool deliberately isn't
For a freelancer or small studio, the practical wins are mundane and matter enormously: terms that get you paid faster (Net 14 instead of Net 30, a stated late-payment interest line where your law permits it), line items specific enough that a client can't query them into delay ('Homepage redesign — 12 hrs at rate' beats 'design work'), and a number scheme you can find a year later when you're doing your taxes. A tidy, complete invoice is quietly the strongest collections tool you have, because it removes every excuse not to pay.
Be clear about what this is not. It generates the invoice document — it is not accounting software. It doesn't track which invoices are paid, chase overdue accounts, file your taxes, or sync to your bank; for that you'd want Wave, QuickBooks, FreeAgent or a spreadsheet ledger. It also can't tell you your legal obligations: whether you must charge VAT, what your local invoice must contain, and how long you have to keep records are questions for your tax authority or accountant, not a generator. Export the finished invoice to PDF so it's tamper-resistant and renders identically for the client.
Frequently asked questions about Invoice Builder
Does it track payments or send invoices automatically?
No — this is a generator, not a billing platform. It produces a PDF you can email yourself; payment tracking, reminders and recurring billing live in tools like Stripe Invoicing or Wave. For freelancers who just need to send a tidy invoice now and then, that lightweight model is usually preferable.
Can I save multiple invoices?
Yes — every invoice is stored locally in your browser. You can switch between them, duplicate one as a starting template for the next, and re-export PDFs at any time. Clearing site data wipes them, so periodically download a JSON backup if you rely on it for records.
Which currencies and tax setups are supported?
All major ISO currencies render with the right symbol and locale-appropriate formatting. Tax is a single percent applied to the subtotal (suitable for VAT, GST or simple sales tax). Compound tax, per-line-item tax and multi-rate jurisdictions need a dedicated invoicing tool.
Privacy, offline use, browser support, and pricing questions are answered on the site-wide FAQ.