guides
What to include on an invoice
Required and recommended fields for professional, compliant invoices.
A complete invoice reduces payment delays and disputes. At minimum include: your business name and contact, client details, invoice number, date, line items, total, due date, and payment instructions.
Tax registration numbers, PO numbers, and project references are often required for B2B and government clients.
Step by step
Your business identity
Legal name, address, email, phone, and logo.
Client details
Bill-to name, company, and address.
Invoice metadata
Unique number, issue date, due date, and PO number if applicable.
Line items
Description, quantity, rate, tax, and line total.
Payment terms
How to pay, late fee policy, and currency.
Is an invoice number required?
Yes in virtually all jurisdictions for business billing — must be unique and sequential.
Should I include bank details?
Yes for bank transfer clients. For online payments, the payment link is sufficient.
Why teams choose InvoyFlow
Fast to start
Create a polished invoice in under two minutes — no accounting degree required.
Get paid online
Accept card and PayPal payments on every invoice with one-click setup.
Estimates & receipts
Win work with estimates, then convert to invoices and issue receipts automatically.
Fair pricing
Start free. Core is $8/mo, Unlimited is $15/mo — no surprise fees.