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 finance agent reconciles by matching each euro or naira bank line to an open invoice using amount, reference, payer name and date, then proposing entries for the exchange difference and any short payment, such as Nigerian withholding tax deducted by the client. It queues what it cannot match, a person approves the proposed entries, and the record of each match, change and approval is kept for the auditor.
What reconciliation means with two currencies
Reconciling a euro account is mostly matching numbers. Reconciling naira receipts in a euro business adds two layers. The euro value of each receipt differs from the euro value of the invoice it settles, because the exchange rate moved; and Nigerian clients often pay less than the invoice total because they deduct withholding tax. An agent that only looks for exact amounts will flag almost every naira line. One built for this work expects both.
How the agent works through a month
- Collect: bank lines from the euro and naira balances, open invoices in each currency, and the rate log.
- Match: for each receipt, find the invoice by reference first, then by payer name and amount, then by amount within a tolerance and a date window.
- Explain differences: test whether a short payment equals a withholding rate on the invoice, a bank charge or a partial payment.
- Propose entries: the settlement, the realised exchange difference and any withholding receivable or charge.
- Queue exceptions: unmatched lines, duplicate payments, payers who do not match the invoiced client.
- Hand over: a summary for a person to approve, with each proposed entry linked to its evidence.
A worked example
Illustrative figures and rates. Your Madrid SL invoiced a Lagos client ₦4,000,000 for consultancy on 2 September, booked at €2,424.24 (your recorded rate that day). On 30 September ₦3,600,000 arrives in your naira balance with the invoice number in the reference.
| Agent's finding | Figure | Proposed treatment |
|---|---|---|
| Reference matches invoice | INV-0912 | Match |
| Short payment | ₦400,000 (10% of ₦4,000,000) | Consistent with withholding tax at 10%, the rate PwC shows for consultancy fees to a non-resident company; request the withholding credit note |
| Euro value of cash received at your recorded rate on 30 September | Per your rate log | Settlement entry |
| Difference between invoice euro value and cash plus withholding, in euros | Calculated | Realised exchange difference (IAS 21 paragraph 28) |
The agent does not decide that the ₦400,000 is withholding tax. It notes that the shortfall equals 10% of the invoice and proposes treating it so once the credit note arrives; a person approves, or rejects and chases the client. For how withholding credit notes work, see the Nigeria library's guide to getting your withholding credit notes.
Rules worth writing down for the agent
- Which rate source to use for each date, and where the rate log lives; see which exchange rate to use.
- Tolerances: the amount and number of days within which a match may be proposed without a reference.
- Known short-payment reasons per client (withholding rates, agreed discounts).
- What the agent must never do: post to closed periods, write off balances, or change an invoice.
Exceptions the agent should not clear on its own
- A payment from a name that is not the invoiced client, such as a director's personal account or a third party. It may be legitimate, but someone should confirm it.
- Two payments for the same invoice, which may be a duplicate to refund rather than an overpayment to keep.
- A receipt with no reference that could match more than one invoice.
- A short payment that does not fit any known reason, which needs a call to the client rather than a write-off.
- Any line in a period that has already been closed.
Clearing these quickly but wrongly costs more than leaving them in the queue for a day.
The record you keep
Spanish and Nigerian auditors ask the same question: who did what, when, and on what evidence. Keep, for each period: the bank lines, the matches proposed, the evidence attached, the person who approved each entry and the time, and anything changed after approval. IAS 21 requires exchange differences to be recognised in profit or loss in the period they arise, so an agent that posts them monthly, with approval, keeps your figures current rather than leaving a year-end surprise.
Measuring whether it is working
Track three numbers each month: the share of bank lines matched without a person touching them, the number of exceptions left open at month end, and the number of approved matches later found to be wrong. The first should rise as the rules improve, the second should fall, and the third should stay close to zero. If wrong matches creep up, tighten the tolerances before giving the agent more lines to handle.
Where Pryme fits
The Finance agent on a Pryme Business Account, built by Pryme Intelligence, prepares reconciliations across your euro and naira balances. It prepares; a person approves above a ceiling you set, and every action is recorded. Statements can be generated as verifiable statements for your auditor. See also keeping books in euros and naira and the Nigeria library's guide to payment reconciliation.
Questions people ask
Can an AI agent reconcile naira and euro bank accounts?
Yes. It matches bank lines to invoices by reference, name, amount and date, proposes entries for exchange differences and short payments, and queues exceptions for a person to approve.
Why do Nigerian clients pay less than my invoice?
Often because they deduct withholding tax. PwC shows 10% on consultancy fees paid to a non-resident company; ask for the credit note.
Who is responsible if the agent gets a match wrong?
The business. That is why a person approves proposed entries and the approval is recorded.
How often should FX differences be posted?
IAS 21 recognises them in profit or loss in the period they arise; posting monthly keeps the figures current.
Sources
- IFRS Foundation: IAS 21 The Effects of Changes in Foreign Exchange Rates (2026 text) · accessed Oct 2026
- PwC Worldwide Tax Summaries: Nigeria, withholding taxes (reviewed 29 May 2026) · 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.