Study guide
2.3 Period-End Routines, Verification & Accounting Software
AAT Level 3 Diploma in Accounting Q2022
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1 Chapter 1: Accounting Principles & Ethical Framework
1.1 Fundamental Accounting Concepts & Assumptions 1.2 Regulatory Framework & IAS/IFRS Terminology 1.3 Professional Ethics & the AAT Code of Conduct
2 Chapter 2: Advanced Double-Entry Bookkeeping & Control Accounts
2.1 Capital vs. Revenue Expenditure & Prime Entry Books 2.2 Control Accounts & Reconciliation Procedures 2.3 Period-End Routines, Verification & Accounting Software
3 Chapter 3: Accounting Errors & The Suspense Account
3.1 Types of Accounting Errors & Trial Balance Impact 3.2 Correcting Errors & Clearing the Suspense Account
4 Chapter 4: Non-Current Assets: Acquisition, Register & Disposal
4.1 Capitalising Non-Current Assets & The Asset Register 4.2 Disposal of Non-Current Assets & Part-Exchange
5 Chapter 5: Depreciation Methods & Accounting Entries
5.1 Straight-Line & Reducing Balance Depreciation 5.2 Depreciation Accounting Policies & Journal Entries
6 Chapter 6: Period-End Adjustments: Accruals, Prepayments & Inventory
6.1 Accrued & Prepaid Expenses and Income 6.2 Closing Inventory Valuation & IAS 2 Rules
7 Chapter 7: Period-End Adjustments: Irrecoverable Debts & Allowances
7.1 Writing Off Irrecoverable Debts & Debt Recovery 7.2 Allowance for Doubtful Receivables 7.3 Professional Scepticism, Ethics & Period-End Pressures
8 Chapter 8: The Extended Trial Balance (ETB)
8.1 Trial Balance Structure & Initial Preparation 8.2 Recording Adjustments & Completing the Extended Trial Balance
9 Chapter 9: Financial Statements: Sole Traders
9.1 Sole Trader Statement of Profit or Loss 9.2 Sole Trader Statement of Financial Position
10 Chapter 10: Financial Statements: Partnerships
10.1 Partnership Principles & The Partnership Act 1890 10.2 Partnership Appropriation Account & Capital/Current Accounts
11 Chapter 11: Financial Statement Analysis & Ratios
11.1 Profitability & Return on Capital Employed 11.2 Liquidity, Working Capital & Efficiency Ratios
12 Chapter 12: Incomplete Records & Reconstructing Accounts
12.1 The Capital Comparison Method & Cash/Bank Summaries 12.2 Mark-up, Margin & Account Reconstruction 12.3 Testing the Reasonableness of Reconstructed Figures
2.3 Period-End Routines, Verification & Accounting Software
Key Takeaways Explain This Topic AI
At the period end, income and expense accounts are cleared (transferred) to the Statement of Profit or Loss and reopen at nil, whereas asset, liability and capital accounts are balanced off with a balance c/d and carried forward as the next period's balance b/d.
General ledger balances must be verified against independent evidence: physical checks, inventory records, supplier statements, bank statements, the receivables and payables memorandum ledgers, and the non-current asset register.
A bank reconciliation splits differences into items that must be posted (bank charges, direct debits, dishonoured cheques) and pure timing differences (unpresented cheques, outstanding lodgements) that are never posted.
Before a transaction is included in the records it must be shown to be genuine and valid: properly authorised, for a business purpose, supported by documentation, and recorded in the correct period and the correct entity.
Accounting software automates the transfer of data into control accounts, the period-end routine and the trial balance, but it cannot verify evidence, dates, coding or the validity of a transaction — those judgements remain with the accountant.
Last updated: August 2026
Period-End Routines, Verification & Accounting Software
Chapters 1 and 2 have built the ledger. Before any of the year-end adjustments in Chapters 4 to 7 can be made, the balances sitting in that ledger have to be closed off correctly and — far more importantly — proved against something outside the ledger . A control account only proves that the bookkeeping is internally consistent. It cannot prove that the bank balance exists, that the inventory is on the shelves, or that the van in the asset register has not already been sold.
The AAT FAPS specification therefore requires you to carry out the financial period end routine : to balance accounts off according to their classification, to verify general ledger balances by performing reconciliations against relevant independent sources, to transfer or carry down balances as appropriate, and to determine whether transactions are genuine and valid for inclusion in the organisation's records.
1. Balancing Off: Why the Routine Differs by Account Type
At the end of a financial period, not every ledger account is treated the same way. What happens to an account depends entirely on its classification.
Account Classification Period-End Treatment Opening Position Next Period
Income (sales revenue, discounts received, rent receivable) The balance is transferred (cleared) to the Statement of Profit or Loss Reopens at nil
Expenses (wages, rent, insurance, depreciation, irrecoverable debts) The balance is transferred (cleared) to the Statement of Profit or Loss Reopens at nil
Assets (non-current assets at cost, inventory, receivables, prepayments, bank) Balanced off with a balance c/d , brought down as a debit balance b/d Opens with the closing balance
Liabilities (payables, accruals, deferred income, loans, VAT payable) Balanced off with a balance c/d , brought down as a credit balance b/d Opens with the closing balance
Capital (proprietor's capital, partners' capital and current accounts) Balanced off after profit and drawings have been posted to it Opens with the closing balance
Drawings (sole trader) Transferred to the capital account, not carried down in its own right Reopens at nil
The logic is simple. Income and expenses measure performance over a period , so they must start each new period from zero — a rent expense account that still showed £14,400 on 1 January would double-count last year's rent against this year's profit. Assets, liabilities and capital measure position at a point in time , so they must continue uninterrupted across the year end. This is the mechanical expression of the distinction between the two primary financial statements.
2. Verifying Balances Against Independent Evidence
A balance that has never been compared with anything outside the accounting system is an assertion, not a fact. AAT names six sources of independent evidence, each of which proves a different balance:
Independent Source Balance It Verifies What a Difference Usually Means
Physical check / count Inventory, petty cash, non-current assets Theft, wastage, damage, unrecorded disposals, counting error
Inventory records Closing inventory, cost of sales Shrinkage, goods received not invoiced, goods on sale-or-return wrongly included
Supplier statements Individual payables ledger accounts and, in total, the PLCA Invoices or credit notes not yet posted, payments in transit, disputed charges
Bank statements The bank / cash book balance Unrecorded charges, direct debits, standing orders, dishonoured cheques, timing differences
Receivables and payables memorandum ledgers SLCA and PLCA (Section 2.2) Day book casting errors, postings to the wrong personal account, omissions
Non-current asset register Asset cost and accumulated depreciation accounts (Section 4.1) Unrecorded disposals, assets capitalised in one record but not the other, depreciation miscalculations
3. Worked Reconciliation A: The Bank
At 31 December 20X5 the cash book of Larchfield Supplies shows a debit balance of £8,400 . The bank statement for the same date shows £9,250 in hand . Investigation reveals five differences:
Cheques totalling £3,600 issued to suppliers had not been presented at the bank by 31 December.
A lodgement of £1,450 banked on 31 December did not clear until 2 January.
Bank charges of £120 appear on the statement but not in the cash book.
An insurance direct debit of £480 appears on the statement but not in the cash book.
A customer's cheque for £700 , banked in November, was dishonoured and debited back by the bank; no entry has been made in the cash book.
Step 1 — Update the cash book. Items 3, 4 and 5 are not timing differences. They are transactions the business genuinely did not know about, and they must be posted :
- Adjustment £
- Cash book balance per ledger 8,400
- Less: bank charges (120)
- Less: insurance direct debit (480)
- Less: dishonoured cheque (reinstate the receivable: Dr SLCA, Cr Bank) (700)
- Corrected cash book balance 7,100
Step 2 — Reconcile the statement to the corrected cash book. Items 1 and 2 are pure timing differences. They are correct in both sets of records and are never posted ; they simply explain the remaining gap:
- Reconciliation £
- Balance per bank statement 9,250
- Less: unpresented cheques (3,600)
- Add: outstanding lodgements 1,450
- Balance per corrected cash book 7,100
The figure reported as Cash and Cash Equivalents in the Statement of Financial Position is £7,100 — the corrected cash book figure, never the raw statement balance.
The rule to remember: if the business did not know about it, post it. If both records are right and only the timing differs, reconcile it.
4. Worked Reconciliation B: A Supplier Statement
The statement from Kelvin Components shows £14,800 owed. The payables ledger account for Kelvin in the business's own records shows £12,150 . Three differences are found:
An invoice for £1,900 dated 28 December appears on the statement; the invoice and goods did not reach the business until 4 January.
A payment of £1,200 sent by BACS on 30 December was not credited by Kelvin until 3 January.
A credit note for £450 issued by Kelvin on 15 December appears on the statement but has not been entered in the business's records.
- Reconciliation of Kelvin Components at 31 December 20X5 £
- Balance per supplier statement 14,800
- Less: invoice not received until January (timing) (1,900)
- Less: payment in transit (timing) (1,200)
- Reconciled balance 11,700
- Balance per our payables ledger account 12,150
- Less: credit note omitted from our records — must be posted (450)
- Corrected balance per our records 11,700
Only the credit note requires an entry. The other two items are correct in both sets of books.
5. Determining Whether Transactions Are Genuine and Valid
AAT requires you to decide whether a transaction should be in the organisation's records at all. Five tests apply:
Authorisation. Was it approved by someone with the delegated authority to approve it (Section 4.1)? An unauthorised commitment is a control failure even when the goods are genuine.
Business purpose. Does it relate to the business, or to the owner? Under the business entity concept a proprietor's household electricity bill paid from the business account is drawings , not an expense — however it was coded.
Supporting documentation. Is there an invoice, receipt, contract, delivery note or board minute? A round-sum payment with no document behind it is the classic indicator of a problem.
Correct period. Does the transaction belong to this accounting period? An invoice dated 2 January for goods delivered in December belongs to December under the accruals concept, and a December invoice for January's rent is a prepayment.
Arithmetic and coding. Do the amount, the VAT and the nominal code agree with the document?
Red flags that should stop a transaction being posted without enquiry: payments to a supplier not on the approved list; a supplier address that matches an employee's address; consecutive invoice numbers from a supplier who claims to trade widely; duplicate invoice numbers or amounts; and expenditure that spikes immediately before or after the year end.
6. What Accounting Software Automates — and What It Does Not
Modern bookkeeping software performs most of the mechanical period-end work. Knowing exactly where the automation stops is examinable.
Automated by the Software Still the Accountant's Judgement
Posting day book data into the SLCA, PLCA and VAT control accounts Whether a transaction is genuine, valid and authorised
Running the period-end routine and producing the trial balance Whether balances are supported by independent evidence
Recalculating balances instantly after an adjustment is entered Which accounting period a transaction belongs to
Calculating depreciation, recurring accruals and prepayments to a set policy Whether the depreciation policy, rate and useful life are still appropriate
Recording, tracking and valuing inventory movements Whether inventory should be written down to net realisable value
Matching bank feed entries to invoices Whether the automatic match is actually the right one
Two consequences follow. First, an agreeing trial balance proves less than it used to : software cannot produce a one-sided posting, so the entire Category 2 family of errors in Section 3.1 largely disappears — while every Category 1 error (omission, commission, principle, original entry, reversal) survives untouched. Second, because the software will accept whatever date and code it is given, cut-off and coding errors become the dominant risk , which is precisely why the reconciliations above still have to be done by hand.
7. Period-End Verification Checklist
Balance off every ledger account according to its classification; clear income and expenses, carry down assets, liabilities and capital.
Reconcile the bank: update the cash book for charges, direct debits and dishonoured cheques, then explain the residue with unpresented cheques and outstanding lodgements.
Reconcile the SLCA and PLCA to the memorandum ledger lists of balances (Section 2.2).
Reconcile a sample of individual supplier accounts to supplier statements.
Reconcile the non-current asset register to the cost and accumulated depreciation accounts (Section 4.1).
Attend or review the inventory count and agree it to the inventory records.
Test cut-off: examine invoices and credit notes either side of the year end and confirm each is in the right period.
Challenge anything unsupported, unauthorised or unusual before it enters the trial balance.