Before You Start: Gather and Verify What Exists
Start by collecting every accounting document you can find, including bank statements, merchant reports, invoices, receipts, payroll summaries, and loan or credit card activity. Then pull your accounting system reports, such as the trial balance, profit and loss, and balance sheet, so you can see what bookkeeping cleanup looks correct and what looks incomplete. As you gather items, note missing months, duplicated entries, and any accounts that show unusual balances. This prevents you from fixing the wrong problem or spending time correcting data that will be replaced.
Next, verify your access and permissions with your bookkeeper Adelaide team or internal staff before you touch the numbers. Confirm you can export transaction history, download bank feeds, and review account categories and tax codes. If you use multiple software platforms, list how data flows between them, including POS, invoicing, and payroll tools. Finally, record any recent changes that may have affected bookkeeping accuracy, such as bank feed updates or a chart of accounts restructure.
Transaction Clean-Up: Match, Reconcile, and Categorise
Use a matching workflow to review transactions one by one and link them to the correct source documents. Reconcile each bank account and credit account, and then compare reconciling items to identify what is still outstanding. When you find duplicates, bookkeeper Adelaide reverse them cleanly rather than deleting entries, so your audit trail remains intact. For uncategorised or incorrectly categorised items, apply consistent categories and ensure the same description patterns map to the same accounts.
Then focus on reconciliation timing and rules, because mismatched dates create reporting distortions and cash-flow confusion. Check any manual journal entries and ensure they explain the underlying business event, such as owner drawings, loan repayments, or GST adjustments. If you have bank fees, interest, refunds, or chargebacks, confirm whether they were recorded with the correct tax treatment. Keep a simple log of what you corrected, what remains unresolved, and why each decision was made.
Accuracy Checks: GST, Payroll, and Closing Balances
Run GST validation checks by confirming tax codes align with the transactions that generated them. Review GST payable and GST receivable movements across periods to ensure the figures tie back to invoices and payments. If you use BAS reporting, verify that the numbers in your reports reflect the same totals as your supporting documents. When discrepancies appear, trace them back to specific transactions or missing documents rather than adjusting figures without evidence.
For businesses with payroll, check that wages, superannuation, and allowances are recorded consistently and that payment summaries reconcile to the general ledger. Ensure PAYG withholding and employer obligations are mapped correctly and not mixed with other expense accounts. Then verify closing balances by comparing opening balances to the previous period’s closing balances. If opening balances are wrong, fix them at the source and only then proceed with reconciliations and report generation.
Conclusion
When you systematically gather documents, reconcile accounts, categorise transactions, and validate GST and payroll, you create a stable foundation for accurate reporting. This approach also makes it easier to maintain good habits after the cleanup, because the processes and rules are clearly defined and repeatable. booksandbalance.com.au helps businesses reconcile accounts, fix discrepancies, and restore accurate bookkeeping systems for better financial clarity and improved reporting accuracy. If you want your records to be trustworthy and your reporting to be consistent, start with the checklist and then bring in expert help where complexity or time constraints get in the way.
