Interior Design Invoice Template Nigeria: Example and Guide
Interior-design projects usually mix design fees, purchased materials and site supervision. Your invoice should separate these parts so the client can see what is a professional fee and what is a project cost.
What to include
Use your business name, contact details, customer name, unique invoice number, invoice date, due date and payment instructions. Add the information that lets the customer connect the bill to the actual job: project address, room or area, design phase and quotation reference.
Your line items can include:
- Design concept and drawings
- Materials and furnishings approved by client
- Site supervision or installation fee
Do not merge every cost into one vague “service charge”. Separate the main service from delivery, materials, third-party costs or approved extras. It helps the customer approve the invoice and helps you explain the total later.
Simple invoice example
| Description | Amount |
|---|---|
| Main service or project fee | ₦250,000 |
| Approved materials or additional work | ₦75,000 |
| Invoice total | ₦325,000 |
Use your actual quotation and agreed price. The example shows how to structure the document, not what your service should cost. If a customer gives you an LPO, include its reference separately rather than using it as your invoice number. Our invoice number guide explains a simple numbering system.
Deposits, changes and final balances
Milestone payments work well when they are linked to a design phase, approved procurement or installation stage.
If the scope changes, issue a revised quotation or a separate invoice for the approved extra. Do not silently add a charge after the job. For staged payments, show the original total, each amount received and the balance still due. Our partial-payment invoice guide has a practical example.
Details to check before sending
Confirm the project phase, approval reference, materials supplied and any outstanding variation. Check the customer name, total, due date and bank details as well. If VAT is applicable to your transaction, show it separately and check the calculation with the Nigeria VAT calculator. Do not add VAT merely because another supplier does.
Create a professional invoice
You can create an invoice online, download a PDF and keep a copy with the quotation, payment evidence and delivery record. When payment arrives, issue a receipt that refers to the same invoice. See our invoice versus receipt guide for the difference.
Frequently asked questions
Should I show a deposit on the invoice?
Yes. Show the original total, the amount and date received, and the remaining balance. This avoids the customer paying the full figure twice.
Can I use the same template every month?
Use the same branded layout, but issue a new invoice number and update the period, scope and balance for every invoice.
What if the customer pays late?
Send a polite follow-up that repeats the invoice number, amount and payment instructions. Our payment reminder templates can help.