Free invoice generator — professional PDF in 60 seconds

How to invoice as a freelancer (the 5-minute version)

Getting paid starts with sending a clear, complete, professional invoice — and sending it immediately after the work ships. Studies of freelance payment behaviour consistently show the same pattern: invoices sent within 24 hours of delivery are paid noticeably faster than those sent a week later, and invoices with explicit due dates beat “payment appreciated” every time. Here is the checklist InvoiceForge walks you through, and why each piece matters.

What every invoice must include

• The word “Invoice” and a unique number. Sequential numbering (INV-0001, INV-0002…) is a legal bookkeeping requirement in many countries and makes follow-up emails unambiguous. InvoiceForge auto-increments for you.
• Your details and your client's details. Legal/trading name, address, and a contact email at minimum. If you're VAT/GST registered, your tax ID is mandatory on the invoice in most jurisdictions.
• Issue date and an explicit due date. “Net 14” means payment is due 14 days after the issue date. Shorter terms are normal for freelancers — Net 14 has largely replaced Net 30 for small engagements, and “Due on receipt” is perfectly acceptable for one-off jobs.
• Itemised line items. Description, quantity (or hours), rate, and amount. Itemising reduces disputes: a client who can see “Responsive build — 16 h × $85” rarely questions the total the way they question a single lump sum.
• Subtotal, tax, and the total due. Show tax as its own row with the rate you applied. If you're not required to charge tax, simply leave the rate at 0 — many freelancers add a note like “VAT not applicable — see section 19 small-business rule” where relevant.
• How to pay. Put bank details or a payment link in the notes field. Every extra step a client must take to find your IBAN delays payment.

Picking payment terms that actually get you paid

Terms are a negotiation, not a formality. Practical defaults that work in 2026: Due on receipt for first-time or small clients, Net 14 for ongoing relationships, and 50% upfront for any project longer than two weeks (invoice the deposit first, then use “Duplicate for next month” for the balance). Late fees — commonly 1.5% per month — are less about collecting interest and more about giving your reminder emails teeth. Always state them in the terms field before the work starts, never after.

Recurring invoices without the subscription software

If you bill a retainer, you don't need a monthly fee tool yet. Save the invoice once, then each month click Duplicate for next month: InvoiceForge bumps the invoice number, advances the issue date by one month, and recalculates the due date from your payment terms. Your client list, numbering counter and drafts persist in your browser's local storage — clear your browser data and they're gone, so export PDFs as your permanent records.

Is a browser-made PDF invoice legally valid?

In almost all jurisdictions, yes. An invoice is a commercial document, not a notarised one — validity comes from its content (the fields above), not from the software that produced it. Some countries add specific requirements (sequential numbering rules, tax IDs, reverse-charge wording for cross-border EU services, e-invoicing mandates for B2G work), so check your local tax authority's checklist once and bake the wording into your default terms.

Frequently asked questions