On October 12, the team discovers an August supplier bill omitted from the close. August and September are closed, and management already has the reports. The first question is not where to find the reopen button. It is what happened, what information was available and which correction is appropriate. Reopening a closed accounting period permits work on that month again; it does not determine the accounting treatment or amend a filed return. Separate the professional decision, the company's authorization and the system operation before making any change to the earlier records.
Identify the problem before opening the month
Obtain the document and check when the service occurred, when the company received the bill and whether an accrual already exists. A late bill might confirm a recorded estimate, reveal an omission or relate to October work despite mentioning August. It may even belong to another legal entity. The amount cannot answer those questions. In this example, an August consultancy worth CRC 240,000 was omitted. The delivery email and acceptance of the work identify the underlying event. The accountant then assesses the treatment rather than assuming the supplier's date settles the issue.
For an entity applying full IFRS, the IFRS Foundation's IAS 8 summary distinguishes estimate changes from errors and describes retrospective correction of material prior period errors, subject to exceptions. It does not require every small business to reopen a software month or establish whether CRC 240,000 is material. Confirm the applicable framework with the accountant. For this illustration, assume the decision is to correct August through a controlled reopening. Effects on filed returns or already authorized financial statements require a separate assessment. Saving a corrected bill is not proof those external requirements have been addressed.
Write a specific reopening request
Identify the company, period, document, reason and expected effect. 'Missing bill' says little. 'August consultancy, CRC 240,000, omitted from records; enter the purchase and compare expenses and payables' defines the work. Keep the evidence with the review file and record the internal authorizer. Limit the scope to that correction and its consequences. If another issue appears, extend the scope explicitly before continuing. A temporary reopening should not become permission to rewrite unrelated transactions. Preserve the previously delivered reports with generation dates so the team can distinguish the original result from the revised one.
- Retain the reports originally delivered and their generation dates.
- Search for another bill or accrual covering the same service.
- Record the reason and the person authorizing the intervention.
- List later closed months and check whether the annual close is also closed.
- Agree which balances and reports will be compared after correction.
- Assign an owner for reviewing and closing the affected periods again.
Follow Tario's reopening sequence
Tario requires accounting permission and a reason to reopen a period. It verifies that the month is closed and refuses reopening while later months remain closed. A closed fiscal year must be reopened first. In this case, August cannot be reopened while September stays closed. With the necessary internal authorization, work backward through the later months, beginning with the most recent. These system restrictions establish an order; they do not prove that every user holding accounting permission has approval for this particular correction. Your organization still needs to decide who may request and authorize the intervention.
The reopening records the actor and reason in period events. It also invalidates stored balances from the affected month so reports read the movements again. That matters because changing August can change September's opening balance. Do not reuse an old PDF as though it includes the correction. Keep the original and revised outputs clearly identified. The period history explains who reopened the month; the review file explains why the change was justified. Together they make the intervention understandable without implying that the software evaluated the consultancy contract or the accounting materiality judgment.
Correct the source and test the result
Check the ledger and supplier account once more before entering the consultancy. Finding a CRC 240,000 accrual changes the case and requires a revised plan. If the omission is confirmed, enter the purchase through its normal flow and verify the accounting date. Do not add a second journal for the same expense merely to make a report look right. Under the simplified example, excluding taxes and other adjustments, August should show CRC 240,000 more expense and supplier liability. Cash should not change because the purchase remains unpaid. Treat these expectations as a test, not figures to force.
Close again and replace the delivered reports
Compare the ledger, trial balance and income statement, then review September's carried-forward supplier balance. Investigate any unexpected cash movement or duplicate liability before closing. Once the checks are complete, close the months in chronological order. Tell report recipients what changed, by how much and why: the omitted August consultancy increased expense and payables without another payment. Assign any required tax follow-up separately and retain its resolution. Leaving a month open indefinitely defeats the close control. Completion means the correction, review and renewed close can all be traced without relying on a verbal explanation from the person who made them.