基礎發票範本

When to use a basic invoice template

A basic invoice template is the right choice when you need to bill a client and the details are straightforward: one or two line items, a standard payment term, and no unusual tax or discount structures. It works across almost every industry — graphic designers charging a flat project fee, contractors billing for parts and labor, consultants wrapping up a monthly retainer. The simplicity is its strength. A document with only the essentials is easier for accounts-payable teams to process and less likely to be kicked back for clarification.

If your invoicing needs are more specialized — hourly engineering work, VAT-registered transactions, or a deposit on a large project — one of the other templates on this page will serve you better. But for the majority of freelance and small-business billing, this format covers everything you need and nothing you do not.

What's included

Every field a professional invoice requires, pre-filled with realistic sample data. Edit in your browser, then download as a PDF — no account, no software to install.

• Bill from / bill to: your business and your client info
• Invoice number + dates: sequential numbering and due-date math
• Line items: description, quantity, rate, amount per row
• Subtotal + tax + total: auto-calculated totals
• Payment terms: Net 30 default; customizable to your contract

How to customize this template

Every field in the preview above is editable. Click the invoice number to make it sequential with your existing records (INV-1001, INV-1002, etc.). Replace the sample business name and client address with your real details. Add or remove line items using the row controls — the subtotal, tax, and total recalculate automatically. Switch the currency to USD, EUR, GBP, CAD, or AUD from the dropdown. If your jurisdiction requires a specific tax rate, enter it in the tax field as a percentage. When everything looks right, hit Download PDF. The result is a clean, print-ready document your client can pay against immediately.

Why this format works

Accounts-payable departments at mid-size companies process hundreds of invoices per month. The ones that clear fastest share three traits: the vendor and client are unambiguous, the total owed is prominent, and the payment instructions are present. This template puts invoice number, client name, due date, and balance due where every AP clerk expects them. There are no flourishes that slow down reading. The format has been standard in North American and European business for decades — recognizable enough that it requires zero explanation, professional enough that it creates no friction.