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
Accruals record costs you have incurred but not yet been billed for, and prepayments spread costs you paid in advance over the months they cover. An AI finance agent can calculate, post and reverse recurring ones each month from contracts and history, but one-off estimates and anything resting on judgement should be proposed and approved by a person.
Why monthly figures need adjustments
Bank transactions tell you when money moved, not when a cost was used or income was earned. If you pay a year's insurance in January, the bank shows one large payment, but the business uses that cover evenly over twelve months. If a contractor works in March and invoices in April, March looks cheaper than it was. Monthly management figures built only from bank movements swing for reasons that have nothing to do with performance.
Accounting on an accruals basis corrects this by matching income and costs to the period they relate to, the approach described in the IFRS Conceptual Framework. Not every small business must use it for tax: in the UK, GOV.UK explains that cash basis is now the standard method for many sole traders and partnerships, while limited companies cannot use it. The IRS describes both cash and accrual methods in Publication 538. Even a business on cash basis for tax often wants accrual-style monthly figures for decisions. Your accountant can advise which applies.
The two adjustments, in plain terms
- Accrual
- A cost you have incurred this month but not yet received an invoice for, such as electricity used or hours a contractor has worked. You record an estimate as a cost and a liability.
- Prepayment
- A cost you have paid in advance for future months, such as annual software or insurance. You hold it as an asset and release a share to cost each month.
- Reversal
- An accrual is usually reversed at the start of the next month, so that when the real invoice arrives it is not counted twice.
What an agent can do reliably
Recurring adjustments with a clear basis suit an agent well, because the work is calculation and discipline rather than judgement:
- Prepayment schedules. When an annual invoice is paid, the agent creates a schedule from the service dates on the invoice and releases the monthly share at each close.
- Recurring accruals. Utilities, regular contractors and interest can be estimated from contracts and the last few invoices.
- Automatic reversals. Each accrual is reversed on the first day of the next period, and the agent checks that the real invoice later arrived.
- Accrual tracking. An accrual still open after its expected invoice date is flagged, because it may mean a missing invoice or a cost that never happened.
Each adjustment should carry its basis, such as 'three-month average of electricity invoices', so anyone reviewing it can see why it is that number.
Where judgement takes over
| Adjustment | Who decides | Why |
|---|---|---|
| Annual software prepayment | Agent, from invoice dates | Dates and amount are on the document |
| Monthly utility accrual | Agent, from history | Stable pattern, small error risk |
| Bonus or commission accrual | Person | Depends on performance and decisions not yet made |
| Legal or professional fees in progress | Person, with the adviser's estimate | Only the adviser knows the work done |
| Disputed supplier invoice | Person | Whether the cost is owed is itself the question |
| Year-end adjustments | Accountant | Tax and reporting rules apply |
An agent can be confidently wrong when it extrapolates a pattern that has changed, for example accruing last winter's heating cost in a mild month, or continuing an accrual for a contractor who has left. Reviewing the accruals list at each close takes minutes and catches most of this.
A worked example
Example only, in US dollars. A consultancy pays $9,600 for annual software on 1 March and uses a contractor who bills monthly in arrears at about $4,000. At the March close, the agent:
- Posts the $9,600 payment as a prepayment and releases $800 to software costs for March.
- Accrues $4,000 of contractor cost for March, based on the last three invoices, and schedules its reversal for 1 April.
- Proposes, but does not post, a $3,000 accrual for a legal matter, because it found the engagement letter but no estimate of work done. The owner asks the lawyer and approves $2,200.
March shows $800 of software and $4,000 of contractor cost, rather than $9,600 and nothing, which is much closer to what the month cost. More on running the whole close is in using AI to shorten the month-end close.
Checks worth running at each close
- Every open accrual has an expected invoice date, and any accrual more than two months old is explained or released.
- Every prepayment balance agrees to a schedule that lists the supplier, the service period and the amount left to release.
- Reversals posted on the first day of the period match the accruals posted at the end of the last one.
- Large or new adjustments carry the name of the person who approved them.
These checks are dull, which is the point. They are the kind of repetitive review a person tends to skip in a busy month and an agent does every time, provided it reports what it found rather than quietly fixing it.
Where Pryme fits
On a Pryme Business account, the Finance agent runs the month-end close step by step, and every adjustment traces to a posted journal with a named source. Recurring accruals and prepayment releases can run inside its mandate; estimates that need judgement come to you, and the Chief of Staff includes them in the decisions it brings to you.
Questions people ask
Do small businesses need accruals?
Not always for tax, depending on the business type and country, but accrual-style monthly figures are usually more useful for decisions. Ask your accountant which basis you must use.
What happens if an accrual is wrong?
It is reversed next month and replaced by the real invoice, so the error moves between months rather than building up. Large errors should still be explained.
Can the agent read service dates from invoices?
Usually, if the invoice shows them. Where dates are missing, it should ask rather than guess the period.
Are prepayments an asset?
Yes. Until the period they cover has passed, they represent something the business has paid for but not yet used.
Sources
- IFRS Foundation: Conceptual Framework for Financial Reporting · accessed Oct 2026
- GOV.UK: Cash basis · accessed Oct 2026
- IRS Publication 538: Accounting Periods and Methods · accessed Oct 2026
- GOV.UK: Running a limited company, company and accounting records · 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.