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This module is in Early Access. It is available to organisations that have been granted it, and the interface described here may still change.

Concepts: Periods & Close

Financial statements only mean something if the numbers stop moving. Fiscal periods are how Horizon makes that true.

Your fiscal calendar (set in Setup) divides the year into periods — usually months. Every posted document lands in exactly one period, determined by its date. That’s what makes “the January numbers” a real, answerable question.

  • Open — the period accepts postings. Normal life.
  • Closed — the period is locked. Nothing new posts into it, so its statements are final.

The lock is the entire point: once you’ve reviewed a month and signed it off, no late entry can quietly change what you reported. If something genuinely belongs to a closed month, it posts to the current one — visibly, as accounting has always handled it.

Month-end in Horizon is a checklist you run from Period Close:

  1. Finish the period’s business — post the stragglers, reconcile the bank, run depreciation.
  2. Review — walk the working trial balance, post adjusting entries where the numbers need truing.
  3. Tick the checklist — tasks with owners and evidence, so nothing relies on memory.
  4. Close the period — the lock drops, and the statements for that month are yours to stand behind.