Accounting Concepts & Standards

Subsidiary Ledger: Definition and Examples

By The Ledgerism Editorial Team · The Ledgerism Brief Editorial Team produces original, methodology-disclosed accounting and tax research—data trackers, databases, and reference guides built to be the most-cited source in the field. Every figure is verified against primary sources including FASB, the IRS, the PCAOB, NASBA, the AICPA, and state boards of accountancy.

A subsidiary ledger is a detailed group of individual accounts that supports and adds up to a single summary account in the general ledger. That summary account is called a control account. The most common examples are the accounts receivable subsidiary ledger, which holds one account per customer, and the accounts payable subsidiary ledger, which holds one account per vendor. The total of all accounts in a subsidiary ledger must equal the balance of its control account at all times.

Businesses use subsidiary ledgers to keep transaction-level detail (who owes what, which invoice, which due date) out of the general ledger while still tracking a single clean total for the financial statements. When a company has hundreds of customers or vendors, listing every one in the general ledger would make it unreadable. The subsidiary ledger solves that by moving the detail one layer down.

How a subsidiary ledger relates to the control account

A control account is a general ledger account whose balance equals the sum of all the individual accounts in its subsidiary ledger. The control account shows one total; the subsidiary ledger shows the breakdown behind it. Common control accounts include accounts receivable, accounts payable, inventory, and fixed assets.

The relationship is a strict equality. If the accounts receivable control account reads $84,500, the accounts receivable subsidiary ledger must contain individual customer balances that add up to exactly $84,500. When a transaction hits a customer’s account, it also hits the control account, so the two move together.

This two-place posting is not the same as a debit and credit. A credit sale is posted once to the customer’s subsidiary account (for detail) and once to the accounts receivable control account (for the summary total), while the offsetting debit or credit goes to sales, cash, or another general ledger account. The subsidiary posting keeps the control account and the sub-ledger in agreement.

Only the control account balance flows onto the balance sheet. The subsidiary ledger stays behind the scenes as supporting detail, available for aging reports, collections, and audit.

Accounts receivable subsidiary ledger

The accounts receivable subsidiary ledger contains one account for every customer the business sells to on credit. Each customer account records that customer’s invoices (debits), payments received (credits), and any returns or allowances. The sum of all customer balances equals the accounts receivable control account in the general ledger.

This sub-ledger is what produces the accounts receivable aging report, the schedule that buckets each customer’s unpaid balance by 0 to 30, 31 to 60, 61 to 90, and 90-plus days. A general ledger showing a single $84,500 receivable total cannot tell you which customer is 75 days late; the subsidiary ledger can.

For deeper coverage of the receivable side, see accounts receivable: definition, process, and examples.

Accounts payable subsidiary ledger

The accounts payable subsidiary ledger works the same way in reverse. It holds one account per vendor or supplier the business owes money to. Each vendor account records bills received (credits), payments made (debits), and purchase returns. The sum of all vendor balances equals the accounts payable control account in the general ledger.

This sub-ledger drives the accounts payable aging report and the cash disbursement schedule, and it lets a company confirm exactly how much it owes each supplier before cutting checks. See accounts payable: definition, process, and examples for the full payables workflow.

Worked example: AR subsidiary ledger to control account

Assume a company sells to three customers on credit during a month. The subsidiary ledger tracks each customer separately; the control account tracks only the total.

The general ledger accounts receivable control account reflects the same activity as one summary total: $135,000 in total debits from credit sales, $50,500 in total credits from cash receipts, and a $84,500 ending balance. The control account balance ($84,500) equals the subsidiary ledger total ($84,500). If those two numbers disagree, a posting error exists somewhere and must be found before the books close.

Common types of subsidiary ledgers

Most subsidiary ledgers sit under a high-volume control account, but the concept applies anywhere a summary total needs supporting detail.

• Accounts receivable ledger: one account per customer, supports the AR control account.
• Accounts payable ledger: one account per vendor, supports the AP control account.
• Inventory ledger: one account per item or SKU, supports the inventory control account.
• Fixed asset ledger: one record per asset, tracking cost, accumulated depreciation, and net book value, supporting the property, plant, and equipment control accounts.
• Payroll ledger: one account per employee, supporting wage and payroll liability accounts.

The general ledger sits above all of these. For how the top layer works, see what is a general ledger, and for how accounts are numbered and organized across both layers, see the chart of accounts.

Reconciling the subsidiary ledger to the general ledger

Reconciliation means comparing the subsidiary ledger total to its control account balance, investigating any difference, and correcting the error so the two agree. Because the sub-ledger and control account should always be equal, any gap signals a posting mistake, a missing entry, or a duplicate.

Companies typically reconcile the accounts receivable and accounts payable subsidiary ledgers to their control accounts monthly, as part of the period-end close. The steps are straightforward:

1. Print or export the subsidiary ledger and total every individual account balance.
2. Pull the control account balance from the general ledger for the same date.
3. Compare the two figures. If they match, the reconciliation is done.
4. If they differ, trace the gap: look for a transaction posted to the customer or vendor account but not the control account, a posting to the wrong account, a transposed number, or a duplicate entry.
5. Record a correcting journal entry, then confirm the two totals now agree.

A reconciled subsidiary ledger also feeds a clean trial balance, because the control account balances that roll into the trial balance are only as reliable as the sub-ledgers behind them.

Subsidiary ledger vs general ledger

The general ledger holds summary balances for every account in the business and produces the financial statements. A subsidiary ledger holds the transaction-level detail behind a single general ledger control account, such as the balance owed by each individual customer.

The two are not competitors; they are layers. The subsidiary ledger records the detail, and the general ledger control account summarizes it into one number for reporting.

Frequently asked questions

What is a subsidiary ledger in simple terms?

A subsidiary ledger is a set of individual accounts that adds up to one summary account in the general ledger. For example, an accounts receivable subsidiary ledger has a separate account for each customer, and the total of all those customer balances equals the single accounts receivable figure shown in the general ledger and on the balance sheet.

What is the difference between a subsidiary ledger and a control account?

A control account is the summary account in the general ledger; the subsidiary ledger is the detail behind it. The control account shows one total, such as $84,500 in accounts receivable. The subsidiary ledger breaks that total into each customer’s balance. By design, the control account balance always equals the sum of its subsidiary ledger accounts.

What are the two most common subsidiary ledgers?

Accounts receivable and accounts payable are the two most common. The accounts receivable subsidiary ledger holds one account per customer and supports the AR control account. The accounts payable subsidiary ledger holds one account per vendor and supports the AP control account. Inventory, fixed assets, and payroll ledgers are also frequently used.

How do you reconcile a subsidiary ledger to the general ledger?

Total every account in the subsidiary ledger, pull the matching control account balance from the general ledger, and compare the two. If they differ, trace the gap to a missing, duplicate, or misposted entry, record a correcting journal entry, and confirm the totals now agree. Most companies do this monthly at period-end close.

Does a subsidiary ledger appear on the balance sheet?

No. Only the control account balance from the general ledger appears on the balance sheet. The subsidiary ledger stays behind the scenes as supporting detail. It provides the breakdown for aging reports, collections, and audit trails, but the financial statements show only the single summarized control account total.

Why do businesses use subsidiary ledgers?

Subsidiary ledgers keep high-volume transaction detail out of the general ledger. A company with hundreds of customers would clutter its general ledger by listing each one. The subsidiary ledger moves that detail one layer down, so the general ledger stays clean with a single control account total while the sub-ledger preserves who owes what and when.

Reviewed by The Ledgerism Editorial Team. Last reviewed: July 2026.

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