How to Write an Invoice in Nigeria (Step-by-Step)

Many Nigerian freelancers and small businesses lose days — even weeks — waiting for payment because their invoice is missing a detail, unclear, or sent too late. A well-written invoice removes confusion and gives the client no excuse to delay.

Start with your business details

Put your business name, email, phone number, and address at the top. If you are registered, include your CAC number and TIN. This makes the invoice official and builds trust.

Add a unique invoice number

Use a simple numbering system like INV-001, INV-002, etc. Never reuse numbers. This helps you and your client track payments and avoid confusion.

Write the date and payment terms

Include the issue date and a clear due date. In Nigeria, common terms are 'Due on receipt', 'Net 7', or 'Net 14'. The shorter the due date, the faster you usually get paid.

Add your client details

Write the client's full name or company name, contact person, phone, and email. Corporate clients especially need this for their records.

List each item clearly

Break down what you sold or did. Include description, quantity, unit price, and line total. Avoid vague entries like 'services' — be specific so clients know what they are paying for.

Calculate VAT correctly

In Nigeria, VAT is 7.5%. Show it as a separate line and calculate it on the subtotal. If you are VAT-registered, include your TIN. If not, you may still charge VAT depending on your business setup.

Show the total and payment instructions

Add the total amount due and include your bank details or payment link. If you charge late fees, mention them here in a short note.

Common mistakes to avoid

Using the same invoice number twice.
Forgetting to add a due date.
Hiding VAT inside the total instead of showing it clearly.
Not including your bank name and account number.
Sending the invoice days or weeks after the work is done.

Save time with an invoice generator

Instead of building invoices from scratch, use a generator that formats everything for you, numbers invoices automatically, and produces a PDF your clients can open on any phone.