Bank reconciliation is the check that proves your own record of the money matches what the bank actually did. You keep one record when you enter sales, bills and payments. The bank keeps another when those transactions clear the account. Reconciling is putting the two side by side and accounting for every difference between them.
Most people assume the two should be identical on any given day. They rarely are, and that is normal. A payment you entered on Monday might not clear the bank until Thursday. A supplier banks your cheque a week late. The bank takes a fee you never wrote down. None of that means something is broken. It means the two records are looking at the same money from slightly different moments.
Where the two disagree
When the balances don’t line up, the gap almost always comes from one of a few places:
- Deposits in transit money you have recorded but the bank has not cleared yet.
- Unpresented payments payments you have made that have not left the account yet.
- Fees and interest charges the bank applied that you have not entered yet.
- Errors a wrong amount, a duplicated line, or two digits transposed.
- Fraud or omissions a transaction nobody authorised, or one that was never recorded at all.
The first three sort themselves out with time. The last two are the reason reconciliation exists. A reconciliation is often the first place an unauthorised payment or a quiet bookkeeping mistake actually shows up.
The work moved, it didn’t disappear
Twenty years ago this meant ticking off a paper statement line by line. Now a bank feed pushes transactions straight into your accounting software and the software suggests matches for you. That sounds like it removes the job. It doesn’t, quite. The matching is the easy part. The judgment is not. The real work now is coding each transaction to the right account, deciding whether that 88 dollar purchase is a deductible tool or a personal buy, and catching the handful of lines the software matched wrongly or could not match at all.
Why I would never treat it as busywork
Your BAS is only as accurate as the transactions behind it. If your books are missing a fee or counting a sale twice, your GST figure is already wrong before you start filling anything in. Reconciling down to a difference of zero is what lets you lodge a BAS and mean it. It is also the line between records you can defend and numbers you are quietly hoping are right.
Two records in, one agreed position out. Reconciling means explaining every gap between them.
Doing it in HPLedger
In HPLedger you import your bank lines, reconcile them against your entries, and the tool carries the reconciled numbers through to a BAS workpaper you can review before you lodge. It prepares the figures. It does not lodge for you, so you still file through the ATO or your agent once the numbers check out.
The technical detail
Definition. A bank reconciliation compares the closing balance in your accounting records against the closing balance on the bank statement for the same date, and identifies every reconciling item that explains the difference.
Reconciling items. Timing differences (deposits in transit, unpresented payments), items on the bank not yet in the ledger (fees, interest, direct debits), ledger errors (transposition, duplication, wrong amount), and unrecorded or unauthorised transactions.
Frequency. Commonly monthly, and always before preparing a BAS. A reconciled ledger is the precondition for a correct GST calculation under the A New Tax System (Goods and Services Tax) Act 1999.
Records. Supporting records for reconciled transactions must generally be kept for 5 years under section 262A of the Income Tax Assessment Act 1936, and for GST purposes under the GST Act. Bank feeds automate matching but do not remove the requirement to keep the underlying source records.
Current as at July 2026. General information only, not personal tax advice.
