Free Small Business Invoice Generator

Invoicing without the overhead

Many small businesses send only a few invoices a week, and a full accounting package is more than they need. BillOak gives shops, studios, agencies, repair services and other small businesses a free invoice generator that produces a professional PDF in minutes.

Add your logo, choose one of three layouts and set your brand color once. There is no subscription, no account and no limit on the number of invoices you can create.

What a small business invoice should include

• Your business name, logo, address and contact details
• Your tax or registration number, if you have one
• The customer's name and billing address
• A sequential invoice number, invoice date and due date
• Each product or service with quantity, unit price and line total
• Discounts, tax and shipping, then the total amount due
• Payment terms and how to pay

Products, services and shipping

Add each product or service as a line item. BillOak multiplies quantity by rate and adds up the subtotal for you. Apply a discount as a percentage or a fixed amount, add tax at your local rate, and enter delivery costs in the shipping field.

If you sell to customers in other countries, pick their currency from more than 150 options and switch the invoice language so it is easy for them to read.

Keep your invoicing organized

• Use a consistent numbering scheme, such as INV-2026-001, and never reuse a number
• Save each invoice: BillOak keeps a history in your browser that you can export as a backup
• Duplicate a past invoice for repeat customers instead of starting from scratch
• Send a quote first for larger orders, then convert it to an invoice once it is accepted
• Issue a credit note, rather than editing an old invoice, when you need to refund or correct it