Period close and year-end migration
Accounting Periods control which months accept postings. Year-end close rolls balances forward and can migrate the standard version (e.g. TT200 → TT99).
Reconcile sub-ledgers
Run AR/AP Reconciliation (/accounting/ar-ap-reconciliation) and confirm sub-ledger balances tie to the GL.
Close the period
Go to Accounting → Accounting Periods (/accounting/periods), verify the Trial Balance is balanced, then set the period to closed and finally locked.
Run year migration
For fiscal year-end, use Accounting → Standard Migration → Year Migration (/accounting/standard-migration/year-migration) to carry forward balance-sheet balances (revenue/expense reset to zero) and optionally migrate to a new standard version via Standard Migration.