What is period close?

Period close is the process of finalizing accounting records for a period, ensuring all transactions are recorded, adjustments are made, and the period is locked from further changes. For professional service firms, period close delivers accurate financial statements and protects the integrity of the historical record.

Key characteristics

• Finalizes period records

• Ensures transactions complete

• Makes required adjustments

• Locks period from changes

• Provides accurate financials

• Part of the accounting cycle

Why it matters for professional service firms

Without a period close, books remain open to changes that alter historical records. Closing provides point-in-time accuracy and record integrity. Professional service firms should close books monthly within a defined timeframe, preventing changes to prior periods.

Real-world example

Kevin's QuickBooks was never closed. Prior month numbers changed constantly as entries were backdated. Period close implementation: close completed by day 12, review period days 1 through 10, final adjustments days 10 through 12, then lock period with password. Changes after close require documented adjusting entries in the current period. Historical records are now reliable and comparable.