What Is Account Reconciliation

1. What Account Reconciliation Involves

Reconciliation compares two independent records of the same activity. Your bookkeeping ledger says one thing. The bank statement says another. Reconciliation is the process of explaining every difference until nothing is left unaccounted for.

The word every matters. A reconciliation with an unexplained variance of fifty dollars is not a reconciliation, it is a near miss. Small differences usually indicate something larger that has partly cancelled out.

2. Why It Is the Only Control Most Businesses Have

Large organisations run segregation of duties, approval hierarchies and internal audit. A twelve-person business has none of those. What it has is reconciliation.

Every duplicate payment, unauthorised charge, missed deposit and bank error surfaces here or not at all. The businesses that skip it do not avoid the problems, they simply find out later and at greater cost.

Reconciliation also underpins the figures on a return. IRS recordkeeping requirements expect reported numbers to be supportable, and an unreconciled ledger is not support.

• Duplicate payments to suppliers, which are recoverable if found quickly
• Unauthorised charges and subscription creep nobody approved
• Missed customer deposits that were never recorded as received
• Bank errors, which are rare but do happen and have a dispute window

3. How Often Reconciliation Should Run

Weekly for anything with high transaction volume, monthly for everything else. The argument for weekly is not thoroughness, it is memory. Recent transactions are recognisable and old ones are guesswork.

What is double entry bookkeeping doing in this picture is making the comparison possible. Because every transaction posts twice, an imbalance cannot hide, which is what reconciliation then investigates.

• Weekly: checking account, payment processors, high-volume cards
• Monthly: credit cards, loans, payroll liabilities
• Monthly: receivables and payables against sub-ledgers
• Annually: full balance sheet review as part of the year end accounting checklist

4. 7 Steps to Reconcile Any Account Correctly

The process is identical whether the account holds a few transactions or a few thousand.

Step 1: Fix the Period and the Opening Balance

Confirm the closing balance from last period matches this period’s opening balance. If it does not, stop. Reconciling forward from a wrong starting point produces a result that balances and means nothing.

Step 2: Import or Enter Every Transaction

Bank feeds handle this automatically but check for gaps, which happen when a feed disconnects. Compare transaction counts between statement and ledger before starting.

Step 3: Match Line by Line

Work through the statement in date order and tick each item against the ledger. Resist the temptation to match by amount alone, because two payments of the same value on different dates will match incorrectly.

Step 4: Investigate Every Unmatched Item

Anything on the statement not in the ledger, or vice versa, gets a reason. Timing difference, missing entry, duplicate, or error. Each category has a different fix.

Step 5: Post the Corrections

Missing transactions get entered, duplicates get removed, miscodings get recoded. Record why in the memo field so the reasoning is visible later.

Step 6: Confirm the Closing Balance Agrees

Ledger closing balance must equal statement closing balance exactly. Not approximately. A remaining difference means an error still exists, and it will compound next period.

Step 7: Document and Lock

Save the reconciliation report, attach the statement, and lock the period. Knowing what is account reconciliation means little if the evidence is not retained.

Cash basis vs accrual basis affects what you expect to see here. Under accrual, timing differences between invoice date and payment date are normal and expected rather than errors.