Last updated: 21 July 2026
Creating an invoice online should be fast, clear and reliable. A good invoice helps your customer understand what was sold, how the total was calculated, when payment is expected and how to contact your business if anything needs correction.
Docarith provides a free browser-based invoice generator that lets you prepare an invoice, review the total and print or save the document as a PDF. The steps below explain what to check before you send an invoice to a customer.
1. Start with business details
Add your business name, address, phone number, email, tax number if applicable and logo if you use one. These details make the invoice look professional and help the customer identify who issued it.
2. Add customer information
Enter the customer name, billing address, contact number or email. For business-to-business invoices, include tax or registration details when they are required for your region or customer type.
3. Check invoice number and invoice date
Every invoice should have a unique invoice number and a clear issue date. A consistent numbering format helps with payment follow-up, accounting records and later search. Docarith creates a unique document number for the browser tool, and you can review it before saving or printing.
4. Add products or services
Add each product or service as a separate line item. Use a clear description, quantity, rate and amount. Clear line items reduce customer questions and make the invoice easier to verify later.
5. Apply discount and tax carefully
If you are giving a discount, show it clearly as a percentage or a flat amount. If tax applies, add the correct combined tax rate and mention any split or tax component details in the notes when needed. Always confirm tax rules with your accountant or local tax advisor.
6. Add payment terms and notes
Payment terms can include the due date, bank or payment instructions, late payment policy, warranty note, delivery note or any service condition. Keep terms short and easy to understand.
7. Review total before sending
Before saving or printing, review subtotal, discount, tax and final total. Also check spelling, customer name, business details and item quantities. A small review can prevent payment delays and confusion.
8. Save or print the invoice as PDF
A PDF invoice is easy to share by email, messaging apps or print. The Docarith web tool runs in the browser and can help you create a printable invoice without signing in.
Ready to make one? Use the free invoice generator or compare the difference between an invoice and quotation.