AI agents for business finance: what they can and can't do
What AI agents can do in bookkeeping, close, collections and compliance today, where a person must stay in charge, and how to judge a product.
The short answer
A sole trader or business name owner in Nigeria pays personal income tax on the business's profit, not company income tax. Under the 2025 reforms, individuals with ₦800,000 or less a year are exempt, and higher incomes are taxed on progressive bands up to 25%. You work out profit (sales minus allowable business expenses), declare it on your annual self-assessment to your state tax authority, and keep records for at least six years.
Why your business profit is your income
A business name is not a separate legal person. The law treats its profit as the owner's income. That means company income tax rules, including the 0% rate for small companies, do not apply. Personal income tax for most people is collected by the state internal revenue service where you live.
Step 1: work out profit, not sales
Tax is charged on profit. Start with every naira of sales, then subtract the costs of running the business.
- Usually deductible: stock you sold, shop rent, staff wages, transport for the business, data and phone used for the business, materials, repairs, bank and payment charges.
- Not deductible: your own living costs, family support, personal school fees, money you take out for yourself (drawings), and fines.
Mixed costs, such as a phone used for both, should be split sensibly and the reasoning kept in your records. Our bookkeeping guide explains how.
Step 2: apply the personal tax rules
From 1 January 2026, individuals earning ₦800,000 or less a year are exempt from personal income tax, and rates rise in bands to a top rate of 25%. Government guidance notes this broadly corresponds to annual gross income of about ₦1.2 million. The bands are the same ones used for employees; see Nigeria PAYE tax bands for 2026 for the band-by-band rates.
Example: a hairdresser trading as a business name
Example only. Ngozi runs a salon as a registered business name.
| Item | Amount (example) |
|---|---|
| Sales for the year | ₦9,600,000 |
| Products and supplies | −₦3,100,000 |
| Shop rent | −₦1,200,000 |
| Two assistants' wages | −₦2,160,000 |
| Generator fuel and repairs | −₦600,000 |
| Data, phone and bank charges (business share) | −₦140,000 |
| Profit | ₦2,400,000 |
Ngozi's chargeable income starts from ₦2,400,000, not ₦9,600,000. She applies the personal income tax bands and any reliefs she is entitled to, such as rent relief on the home she rents; see rent relief in Nigeria. The money she took out each month for household spending does not reduce her profit.
Step 3: file and pay
- Make sure you have a Tax ID linked to your NIN. See how to get a Tax ID.
- Prepare a simple profit statement for the year from your records.
- File your self-assessment return with your state tax authority by its due date and pay any tax shown.
- Keep the return, the workings and supporting records for at least six years, as the Nigeria Tax Administration Act 2025 requires.
- If you employ staff, you must also run PAYE on their pay, which is separate from your own tax.
Simplified returns
The Nigeria Tax Administration Act 2025 lets the tax authority issue guidelines for simplified income tax returns for low-income earners and people in the informal sector. Check with your state tax authority whether such a scheme applies to you.
Set tax aside as you go
The hardest part for many sole traders is not the calculation but having the money when the bill arrives. Each month, after recording sales and expenses, estimate the year's profit so far and move a share of it to a separate savings balance. A rough rule is better than none: if you expect to be in a band where tax takes about a sixth of profit above the exempt amount, set aside that share of each month's profit. Adjust at year end when the real figure is known.
Records the tax office may ask for
- Bank statements for the business account.
- Sales records, including cash sales.
- Receipts and invoices for expenses you deducted.
- A list of equipment bought, with dates and costs.
- Your workings for any shared costs split between business and personal use.
When incorporating starts to make sense
If your profit is growing and you meet the small company test (turnover ₦100 million or less, fixed assets not exceeding ₦250 million, not professional services), a limited company pays 0% company income tax on its profit. You would still pay personal tax on any salary you draw, and you take on company filing duties. Compare the two in business name or limited company.
If your income is irregular
Many traders have strong and weak months. Tax is worked out on the year's total profit, so a slow March does not cancel a busy December, and the reverse is also true. Keeping monthly records lets you see the running total and avoid a surprise at year end.
Where Pryme fits
Working out profit is much easier when business money has its own account. A Pryme Business Account keeps sales and expenses apart from your household spending, and you can generate a regular or verifiable statement through Pryme's partnership with VerifyDoc.ai when a tax officer or lender asks for evidence. Open an account.
Questions people ask
Does a business name pay tax in Nigeria?
The business name itself does not pay company income tax. Its profit is taxed as the owner's personal income.
How much tax does a small business owner pay in Nigeria?
It depends on profit. Individuals with ₦800,000 or less a year are exempt; above that, progressive bands apply up to 25%.
Is tax charged on my sales or my profit?
On profit: sales minus allowable business expenses. Personal drawings do not count as expenses.
Who collects tax from sole traders in Nigeria?
Personal income tax for most individuals, including sole traders, is administered by the state internal revenue service where the person lives.
Sources
- Govt highlights 50 tax reliefs and exemptions for low-income earners and SMEs (AllAfrica) · accessed Oct 2026
- PwC Nigeria: The Nigeria Tax Reform Acts, top 20 changes to know · accessed Oct 2026
- Nigeria Tax Administration Act 2025 (Gazette copy) · accessed Oct 2026
- Mondaq: Nigeria's 2025 tax laws and their benefits for SMEs · accessed Oct 2026
This article is general information, not financial, legal or tax advice. Products described are provided under the terms on this site and are subject to regulation and eligibility.