What is a subledger?

A subledger is a detailed subsidiary record that supports a control account in the general ledger, containing individual transaction detail that summarizes to the control account balance. For professional service firms, common subledgers include accounts receivable (by customer) and accounts payable (by vendor).

Key characteristics

• Detailed subsidiary record

• Supports general ledger control

• Contains transaction-level detail

• Totals must match the control account

• Enables detailed analysis

• Required for audit trail

Why it matters for professional service firms

The general ledger shows totals; subledgers show detail. Without subledgers, you cannot identify who owes what or what you owe to whom. Professional service firms need accurate subledgers for AR and AP that reconcile to general ledger control accounts.

Real-world example

David's general ledger showed an AR control balance of $245,000. AR subledger detail: Client A $78,000, Client B $52,000, Client C $41,000, plus 12 other clients totaling $74,000. Subledger total matched control account. Monthly reconciliation caught a $3,400 discrepancy caused by a misposted payment, which was corrected before it affected reporting.