Closing the books at year end in QuickBooks locks a full year of transactions into place so nobody can accidentally change a number after your taxes are filed. Here is how to close the books at year end in QuickBooks correctly, in an order that catches problems before they get sealed in.
Last verified: October 2026.
What “closing the books” actually means in QuickBooks
QuickBooks does not have a single “close the year” button that locks everything permanently. Instead, closing the books means setting a closing date, which warns or blocks anyone from editing transactions dated before it, depending on the permission you choose. Your data for that period stays fully accessible for reporting, it is simply protected from accidental changes.
How to close the books at year end in QuickBooks, step by step
- Reconcile every account through the year end date. Every bank and credit card account should match its statement for the full year before you close anything. Our guide to reconciling a bank account in QuickBooks covers the process.
- Review uncategorized transactions. Clear out anything sitting in Uncategorized Income, Uncategorized Expense, or Ask My Accountant. See categorizing transactions in QuickBooks for how to do this efficiently.
- Clear Undeposited Funds. A balance sitting here at year end usually means payments were recorded but never matched to a deposit. Our guide to handling Undeposited Funds explains the fix.
- Run your key year-end reports. Pull the Profit and Loss, Balance Sheet, and any reports your accountant requests for the full fiscal year, and review them for anything that looks wrong before you lock the period.
- Record year-end adjusting entries. Depreciation, accrued expenses, prepaid expense adjustments, and inventory corrections are typically entered by your accountant at this stage.
- Send your accountant access if they need it. Many accountants review and adjust before the books are closed. See our guide to giving your accountant access to QuickBooks safely if this is new to you.
- Set the closing date. In QuickBooks Online, go to Settings, then Account and settings, then Advanced, and set the closing date to the last day of your fiscal year. In Desktop, this is under Company preferences in the Accounting section.
- Choose whether to require a password to edit closed transactions. This adds a layer of protection beyond a warning message, which is worth turning on once you are confident the year is correct.
What happens if someone edits a closed period anyway
If you set a password requirement, QuickBooks blocks the edit entirely without the password. Without the password requirement, QuickBooks still warns before saving a change to a closed period, but allows it to go through. Either way, QuickBooks logs changes to closed periods in the Audit Log, so you can see exactly what changed and when, even if a change slipped through.
Common mistakes when closing the books
- Closing before reconciling every account. This locks in a period that still has errors, which then requires reopening the period or a correcting entry dated later.
- Closing without reviewing the reports first. A closing date is not a substitute for actually checking the numbers look right.
- Forgetting to coordinate with your accountant’s adjusting entries. Closing too early can mean their entries land in the wrong period and need correcting.
- Never setting a password requirement. A plain warning is easy to click past without thinking, especially for a team member who does not realize the significance of a closed period.
How closing the books interacts with 1099s and payroll filings
Year end for QuickBooks closing purposes does not always line up with the deadlines for 1099-NEC forms or payroll year-end filings, which have their own January due dates regardless of when you set your closing date. Confirm your contractor and vendor 1099 information is correct before you close, since a vendor missing a tax ID or address is much easier to fix before the period is locked than after. The same applies to payroll, where W-2 totals need to reconcile with what QuickBooks shows for the year.
Can you still see reports after closing?
Yes. Closing the books only restricts editing, not viewing or reporting. You can run a Profit and Loss or Balance Sheet for a closed period at any time, exactly as you could before. If you ever need our guide on reading those reports, see running a P&L report that actually makes sense.
Reopening a closed period when you need to
Sometimes a correction genuinely needs to go into a closed period, such as fixing a miscategorized transaction your accountant found during tax preparation. You can move the closing date forward temporarily, make the correction, and move it back, or simply enter the correction with the password if you have one set. Document why the change was made, since closed-period edits are exactly the kind of thing an auditor or future bookkeeper will ask about.
When to get help closing the books
If this is your first year-end close, if your business has inventory, depreciation, or multiple entities, or if you are not fully confident the books are accurate, a bookkeeper or accountant can review before you lock the period. Getting this wrong compounds, since next year’s opening balances depend on this year closing correctly. Our comparison of bookkeeper vs software costs covers what that kind of help typically runs.
Frequently asked questions
Does closing the books in QuickBooks lock everything permanently?
No. A closing date restricts edits to that period, either with a warning or a password, but it can be moved or overridden later if a correction is genuinely needed.
What is the right closing date if my fiscal year does not match the calendar year?
Use the last day of your actual fiscal year, not December 31, if your business operates on a different fiscal calendar. Confirm this with your accountant if you are unsure which applies to you.
Should I close the books before or after filing taxes?
Most businesses close after their accountant has reviewed the year and made any final adjusting entries, since those entries still need to land in the correct, pre-close period.
Can my accountant close the books for me?
Yes, if you have given them appropriate access. Many accountants prefer to set the closing date themselves once they are satisfied the year is accurate.
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