Is a free invoice legally binding?

An invoice created with any tool is legally binding if it contains the required information. In most jurisdictions, no specific format is required — just clear identification of parties, services, amounts, and payment terms. A PDF or printed invoice is equally valid.

How do I number invoices?

Use a sequential numbering system: INV-001, INV-002, or by year INV-2024-001. Sequential numbering is important for accounting and tax records. Never reuse invoice numbers or skip numbers — tax authorities use invoice numbering to detect gaps.

What payment terms should I use?

Common terms: Net 30 (payment due in 30 days), Net 15, Due on receipt (immediate). For new clients, consider Net 15 or a 50% deposit. Include late payment interest (e.g. 1.5%/month) in your terms to encourage prompt payment.

Do freelancers need to add VAT/GST?

Only if you are VAT/GST registered in your country, which typically happens above a revenue threshold. UK VAT threshold: £90,000/year. Australian GST: AUD 75,000/year. US has no federal sales tax for services. Check your local requirements.

Can I add my logo to the invoice?

Yes. The tool includes a logo/business name field that appears at the top of the invoice. For a logo image, paste the URL of a publicly hosted image or embed it using your browser's developer tools. The logo is included when you print to PDF.

Is my data sent to a server?

No. All invoice data — your business details, client information, and line items — is processed entirely in your browser and never transmitted to any server. The PDF is generated locally by your browser's print function. Nothing is stored or shared.

business

Free Invoice Generator — Professional Invoices Online, No Account

A professional invoice generator lets you create itemized invoices with your business details, client information, line items, tax calculation, and payment terms — then print or save as PDF instantly. This tool requires no account, adds no watermark, and works entirely in your browser.

Free — No SignupRuns in BrowserData Never UploadedPopular tool

business

Create a professional invoice instantly and print or save as PDF. No account needed.

Itemized line items with quantity, unit price, and automatic line total
Tax rate field with auto-calculated tax amount and grand total
Payment terms selection — Net 7, Net 15, Net 30, Due on receipt, or custom
Business name, address, and logo field for professional branding
Client details and unique invoice number with date and due date fields
Browser print-to-PDF — no watermark, no account, no server upload

Features

Everything you need in one Invoice Generator

No account required

Open the tool and start invoicing immediately. No email address, no signup, no payment required — ever.

No watermark

Your PDF looks like a professional invoice from your own business, not a template from a third-party platform.

Auto tax calculation

Enter your VAT, GST, or sales tax rate once — the tool calculates tax amount and grand total automatically across all line items.

Instant PDF

Use your browser's built-in Print → Save as PDF to create a professional PDF invoice without any additional software.

How It Works

How to use Invoice Generator

Fill in invoice details

Enter your business name/logo, client name, invoice number, date, and payment due date.

Add line items

Add service or product lines with description, quantity, unit price. Tax rate is calculated automatically.

Print or save as PDF

Preview your invoice and use the browser's print function to save as PDF. No watermarks.

Format Comparison

Invoice creation methods — a practical comparison

Method	Cost	Features	Best for
This free tool	Free	Line items, tax, PDF, no watermark	Freelancers, one-off invoices
Word / Excel template	Free	Manual calculation, no auto-tax	Occasional invoicing, custom formats
Wave Invoicing	Free (paid features)	CRM, recurring, payment tracking	Small businesses, recurring clients
FreshBooks	From $17/mo	Expenses, time tracking, bank sync	Growing businesses needing full accounting

Troubleshooting

How to fix common syntax errors

Most “invalid JSON” failures come from a small set of mistakes. Paste the failing JSON above, click Validate, and the tool points you at the exact line and column.

Missing unique invoice numberInvoice with no number or repeated INV-001

Use a sequential number like INV-2026-001. Never reuse — tax authorities detect gaps and duplicates.

No payment terms specifiedInvoice says "Payment due" with no date

Always state payment terms: Net 30, Due on receipt, or a specific date. Ambiguous terms lead to late payments.

Wrong currency for international clientsFreelancer in UK invoices US client in GBP

State the currency explicitly on the invoice. For international clients, agree on currency before starting work — FX risk falls on whoever accepts the other currency.

No payment method instructionsInvoice total shown, no bank details or payment link

Include bank details (sort code, account number) or payment links (Stripe, PayPal, Wise) so clients can pay immediately.

Forgetting late payment termsNo mention of interest on overdue invoices

Add "Late payments subject to 1.5%/month interest" — UK Late Payment Act entitles you to 8% + base rate automatically, but stating it explicitly prompts faster payment.

VAT charged when not VAT registeredUK freelancer under £90,000 threshold adds 20% VAT

Only charge VAT if you are registered. Add your VAT registration number to invoices when registered. Charging VAT without registration is illegal.

FAQ

Frequently asked questions

A legally valid invoice typically includes: your business name and address, client name and address, unique invoice number, issue date, payment due date, itemized list of goods/services with prices, subtotal, tax amount, and total. Bank or payment details for receiving payment.

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References

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