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
Good bookkeeping for a small Nigerian business means recording every sale and every expense, keeping the receipt or proof behind each one, and matching your records to your bank statement every week. The Nigeria Tax Administration Act 2025 requires books to be kept in English for at least six years, whether or not you owe tax. A notebook works, but a spreadsheet or accounting app with a separate business account is far easier.
What the law expects
Under the Nigeria Tax Administration Act 2025, every person must maintain books or records of accounts whether or not they are liable to tax. Records must be kept in English and retained for not less than six years after the year of assessment they relate to. If you employ staff, the minimum wage law also requires wage records, kept for three years.
The five records every small business needs
- Sales log: date, customer, what was sold, amount, how paid (cash, transfer, POS) and reference.
- Expenses log: date, supplier, what for, amount, how paid, and a receipt reference.
- Money owed to you (debtors): who, how much, invoice date, due date.
- Money you owe (creditors): supplier, amount, due date.
- Assets list: equipment, vehicles and furniture with purchase date and cost. This also helps you check the ₦250 million fixed asset limit in the small company tax test.
A simple template
| Date | Type | Description | In (₦) | Out (₦) | Method | Proof |
|---|---|---|---|---|---|---|
| 02 Oct | Sale | Catering, 50 packs, Mrs Bello | 150,000 | Transfer | Bank ref | |
| 02 Oct | Expense | Rice and oil, market | 62,000 | Transfer | Receipt 014 | |
| 03 Oct | Expense | Diesel | 18,000 | Cash | Receipt 015 | |
| 04 Oct | Sale | Walk-in sales | 41,500 | Cash | Daily tally |
Example only. Use one row per transaction. Group expense types (stock, rent, wages, transport, utilities, data) so you can total them at month end.
Notebook, spreadsheet or app?
| Option | Good for | Watch out for |
|---|---|---|
| Notebook | Market traders and very small cash businesses | Hard to total, easy to lose; photograph pages weekly |
| Spreadsheet | Most small businesses | Back it up; lock formulas so totals do not break |
| Accounting app | Businesses with staff, stock or many transfers | Check it exports your data and that you can read reports |
Whichever you use, the routine matters more than the tool. Fifteen minutes on the same day each week beats a weekend of catching up at year end. If someone else keeps the books, review the month-end numbers yourself; you remain responsible for the records.
Cash businesses: a daily close
At closing time, count the cash, add up POS and transfer receipts, and write the totals in the sales log. Note any money taken out for stock or change. Bank surplus cash regularly so the bank statement tells most of the story.
A weekly routine under an hour
- Download the week's business account statement.
- Tick each bank line against your sales and expenses logs. Add anything missing.
- Count cash in hand and compare it with cash sales minus cash spent. Investigate differences early.
- Photograph or file every receipt, named by date and number.
- Update who owes you and send reminders. See getting customers to pay on time.
Matching your records to the bank statement is called reconciliation. For more on it, see payment reconciliation in Nigeria.
Month end: three numbers that matter
- Turnover
- Total sales for the month. Watch the running total against the ₦100 million small company and VAT thresholds.
- Profit
- Sales minus business expenses. This is what tax is based on.
- Cash position
- What is in the bank and cash box, against what you must pay in the next few weeks.
Mistakes that cause trouble later
- Mixing personal and business money. It makes profit impossible to see. Read how to separate business and personal money.
- Not recording cash. Cash sales and cash spending vanish from the picture unless written down daily.
- Recording drawings as expenses. Money you take for yourself is not a business cost.
- Throwing away receipts before six years have passed.
- Waiting until year end. Rebuilding a year from memory is slow and inaccurate.
Example: what good records reveal
Example only. A small bakery thinks it makes about ₦400,000 a month. After four weeks of proper logs, the owner sees sales of ₦1.9 million, ingredients of ₦1.1 million, wages of ₦280,000, diesel of ₦210,000 and other costs of ₦90,000, leaving ₦220,000. Diesel is the surprise, so she reprices two products and changes her baking schedule.
Year end in five steps
- Check that every month has been reconciled to the bank statement.
- Count stock and value it at cost.
- List who owes you and whom you owe at the year end date.
- Update the assets list with anything bought or sold.
- Total sales, expenses and profit for the year, then hand the file to your accountant or use it for your return.
If these steps take a day rather than a month, your weekly routine is working.
Good records also make it easier to answer questions from a lender, a buyer of your business or a tax officer quickly and with evidence, rather than from memory.
Where Pryme fits
A Pryme Business Account gives you a clean statement to reconcile against, and its Finance agent can prepare categorised transaction lists and month-end summaries for you to check and approve. For a deeper look at automation, see can AI do your bookkeeping? You can also generate regular or verifiable statements through Pryme's partnership with VerifyDoc.ai.
Questions people ask
How long should I keep business records in Nigeria?
At least six years after the year of assessment they relate to, under the Nigeria Tax Administration Act 2025.
Do I need an accountant for bookkeeping as a small business?
Not for day-to-day records. Many owners keep their own books and use an accountant for year-end accounts and tax returns.
Can I keep my business records in a notebook?
Yes, provided they are complete, in English and kept for six years. A spreadsheet or app is easier to total and back up.
What records do I need if my business makes no profit?
The same records. The law requires books to be kept whether or not you are liable to tax.
Sources
- Nigeria Tax Administration Act 2025 (Gazette copy) · accessed Oct 2026
- Mondaq: National Minimum Wage (Amendment) Act 2024, key updates for employers · accessed Oct 2026
- PwC Nigeria: The Nigeria Tax Reform Acts, top 20 changes to know · 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.