09/03/2026
Once a tax return has been filed, your bookkeeping records for that year should match the numbers reported on the return.
Making changes to prior-year transactions after filing can create differences between your accounting records and your tax return—and may cause problems later when reviewing financial reports, preparing future returns, or responding to tax notices.
If you discover an error in a prior year, don’t delete, recategorize, or adjust the transaction without first talking to your bookkeeper or tax professional.
There is usually a proper way to make the correction while keeping your records accurate. A quick conversation can prevent a much bigger cleanup later.