What Is Monthly Reconciliation of General Ledger Accounts?

Most small businesses reconcile the bank account and stop. That leaves every other balance sheet account unverified, which is precisely where errors accumulate quietly for months.

General ledger reconciliation means proving that each balance sheet account agrees with independent supporting evidence.

What reconciling actually means

For every balance sheet account, you should be able to answer: what is this balance made of, and what proves it? Cash is proved by the bank statement. Receivables by the aging report. A loan by the lender statement. Anything you cannot explain is either an error or something you have forgotten about.

Accounts to reconcile monthly

• Bank and credit card accounts, to statements
• Accounts receivable control, to the AR aging
• Accounts payable control, to the AP aging
• Loans and finance, to lender statements, with principal and interest split correctly
• Payroll liabilities, to what was actually remitted
• Sales tax payable, to what was collected and filed
• Inventory, to counts or perpetual records
• Prepaid expenses, to a schedule showing what remains
• Accrued expenses, to the schedule of what was accrued
• Fixed assets and accumulated depreciation, to the asset register
• Customer deposits and deferred revenue, to what is genuinely undelivered

Control account reconciliation

Receivables and payables are the two most valuable. The control account balance in the general ledger must equal the total of the subsidiary ledger. When it does not, something has been posted directly to the control account, bypassing the customer or vendor detail.

This is a check that takes seconds and catches a category of error nothing else will.

The accounts that hide problems

Suspense and clearing accounts. Anything parked there was parked because someone did not know where it belonged, and it should be cleared before close rather than carried forward.

Undeposited funds or similar holding accounts. A growing balance here usually means payments recorded but never matched to a deposit, which inflates both income and this account.

Prepaid and accrued accounts. These need a supporting schedule. Without one they drift, because nobody remembers what the balance is composed of.

A practical routine

• Reconcile bank and cards first, since everything else depends on them
• Reconcile the two control accounts to their agings
• Work down the remaining balance sheet accounts with a schedule for each
• Investigate anything that has not moved when it should have, or has moved when it should not
• Clear suspense and clearing accounts to zero
• Then close the period

Why it matters

The profit and loss statement is only correct if the balance sheet is. A cost posted to the wrong account, a payment recorded twice, or an accrual never reversed all affect profit, and none of them are visible on the P&L itself. Balance sheet reconciliation is what makes reported profit trustworthy.

Assign every account

Maintain a reconciliation matrix with account, risk, frequency, preparer, reviewer, due date, source, method, and escalation. High-volume or high-risk accounts may need more frequent review.

Use the right method

Compare cash to bank statements, receivables and payables to subledgers, debt to lender schedules, payroll to payroll reports, fixed assets to rollforwards, taxes to returns, and equity to legal and ownership records.

Reconcile, do not merely compare

Start with the ledger balance, identify the independent or supporting balance, list reconciling items, and explain the difference. Every item needs amount, date, cause, evidence, owner, expected resolution, and status.

Review movement and aging

Compare with prior periods and expected activity. Investigate unusual signs, round amounts, direct journals, stale items, missing movements, duplicate balances, and entries after close.

Correct under control

Use approved source corrections or journal entries with evidence. Rerun affected reconciliations and reports, document the cause, and prevent recurrence. Do not overwrite the original reconciliation.

Monthly package checklist

• Account and period are explicit
• Ledger balance ties to the trial balance
• Source evidence is independent where possible
• Reconciling items have owners and dates
• Corrections are approved and traceable
• Reviewer challenges are resolved
• Final sign-off and supporting files are retained

Standardize the reconciliation cover sheet. Include entity, account, period, ledger balance, supporting balance, difference, reconciling items, aging, preparer, preparation date, reviewer, review date, conclusion, and attachments. Require the reviewer to inspect source quality, unusual activity, old items, direct journals, post-close changes, and whether the reconciliation method still fits the account. Track completion centrally and escalate missing support before reports are issued. Analyze recurring reconciling items across periods; repeated corrections may indicate a broken integration, unclear policy, late source process, or access problem. Close the root cause rather than accepting the same unexplained item every month.

At quarter end, review the reconciliation matrix itself. Add new accounts and integrations, remove obsolete assignments, adjust frequency for changed risk, confirm backup coverage, and test whether preparer and reviewer access remains appropriate.

Document any changes.