Can AI Prepare Year-End Accounts? The Honest Answer

The question behind the question

When accountants ask whether AI can do year-end accounts, the formatting is not what they mean. Accounts production software has turned a trial balance into statutory accounts in minutes for years. What eats the week is everything before that: reconciling the balances, finding what the bookkeeping missed, building the schedules and working out the tax. That is the part this post is about.

The job

The company is Brackenfield Outdoor Ltd, a garden and tool supplier with a trade counter, a website, an eBay shop and an installation side. It is a demo company we built, so the names are invented and the figures are seeded, but the year end is complete and deliberately untidy, the way real ones are.

PrepIQ was given what a client typically hands over: the general ledger (just under five thousand lines across about sixty accounts) and the trial balance to 30 June 2026, plus thirteen documents. A stocktake certificate, two hire purchase agreements, a bank loan statement, the VAT return summary, dividend vouchers with a board minute, a corporation tax note, an aged debtors listing, an accrual letter, an insurance schedule, and three emails from the client. No prior-year file, and no bank statements.

The log

PrepIQ narrates as it works. These are its own updates from the run, in order, trimmed for length.

Read that list as an accountant and two entries stand out, because neither is arithmetic. The dividend point needed the board minute, the bank and the reserves read together. The tax point needed the rules, not a rate. Both are the kind of thing a tired preparer misses in week three of January.

What came out

The seven journals: the insurance prepayment written off; the accrual moved to accountancy; £343.76 of materials on an expense claim moved out of travel; the £32,894.55 of prior-year dividends cleared to reserves; the tax provision trimmed by £1,083.31; last year's unpaid corporation tax of £29,715.50 shown separately as it was due in April; and the hire purchase split between amounts due within and after one year. It also noted that the tax note's £26,356.27 capital allowances claim isn't supported, because nothing was bought in the year.

The set itself is an extended trial balance and its schedules, cell-linked so every figure traces back to its working sheet. The final check: every debit and credit column pair on the trial balance nets to nil, every schedule's check cell is nil, and no cell shows an error. Alongside it came an adjustments log with the reason for each journal, the journals ready to post, and a draft email to the client in plain English.

What it left for a person

About 35 queries, most of them for the client. These were the main ones:

• No bank statements were supplied, so the bank couldn't be reconciled line by line. It carried the ledger balances and queried them, including £2,401.21 of petty cash that looks high.
• The aged debtors listing doesn't add up to its own total, and it sits £62,331.50 below the customer balance in the books.
• £9,153.02 of subcontractor tax deductions had never been paid to HMRC, with no monthly CIS returns filed.
• VAT by quarter didn't match the returns paid, though the year-end balance agreed to the June return.
• A £243,735.92 opening balance equity figure left over from the bookkeeping setup, treated as reserves brought forward pending last year's filed accounts.

That last one is worth a moment. Our connector for ChatGPT and Claude flagged exactly the same balance when we tested it on the same books. Two different tools, the same finding, because both were reading the ledger rather than guessing.

The honest answer

So can AI prepare year-end accounts? It can prepare the working papers, and on this run it did more than reformat the bookkeeping: it found a dividend error, a prepayment that didn't exist, a tax computation done on the wrong basis and a supporting document that didn't foot.

It can't sign them. It can't reconcile a bank it was never shown, it can't know why the client paid what they paid, and its 35 questions are 35 conversations a person still has to have. Every adjustment is a proposal in a log, not a fact. The accountant reviews the set, asks for changes, and approves it, which is the job that matters and the one it doesn't try to take.

What it removes is the week before that review.

How it fits into a practice

1. Hand over
   The ledger export, the trial balance and whatever the client sent. Last year's file, if you have it, is rolled forward.
2. PrepIQ prepares
   Unattended. Reconciles what it can, builds the schedules, posts the trial balance, computes the tax and flags every judgement.
3. You review
   Open the set, read the adjustments log, and ask for changes in plain English. It reworks the set.
4. Sign off
   Approve and download in your firm's template. On IQ Books the journals post back into the ledger; for Xero, QuickBooks, Sage or Pandle you post them from the list it gives you.

PrepIQ is live on the ReconcileIQ practice plans, Practice Essential and above, for UK and Irish sole traders and limited companies. Each year-end job draws 5,000 credits on the default engine or 10,000 on the maximum one, and each revision 1,250 or 2,500. You can watch a whole year end in seven minutes.