Frequently Asked Questions
Everything you need to know about generating PDF invoices, payment terms, and invoicing compliance. If your question is not covered, our support team replies within one business day.
01Is InvoiceAce really 100% free to use?
Yes. You can generate, customize, preview, and download unlimited PDF invoices with a free account—no subscriptions, no credit card required.
02Are there any watermarks or hidden branding on downloaded invoices?
No. Invoices exported from InvoiceAce are 100% clean, professional, and completely free of any third-party logos or promotional watermarks.
03Is a PDF invoice legally valid for taxes and accounts payable?
Yes. In almost all global jurisdictions (US IRS, EU VAT, UK HMRC, Canada CRA), a PDF invoice containing clear sender and client identity, unique sequential invoice numbers, itemized line items, and payment terms serves as an official legal demand for payment.
04How should I structure my invoice numbers?
Use a consistent, sequential invoice numbering system like INV-2026-001 or 2026-CLIENT-01. Never issue duplicate invoice numbers, as enterprise accounting systems will flag them as duplicate bills.
05What payment terms should I set for my clients?
Standard business payment terms include Net 14 (payment due in 14 days) for freelancers, Net 30 for corporate clients, and Due Upon Receipt. You can also offer an early payment discount like 2/10 Net 30.
06Can I bill international clients in multiple currencies?
Yes! InvoiceAce supports multi-currency invoicing in USD ($), EUR (€), GBP (£), CAD ($), AUD ($), JPY (¥), and INR (₹). Make sure to include your SWIFT/BIC code and IBAN in payment instructions.
Still have questions?
Read our detailed invoicing guides, talk to support, or launch the free generator right now.