...... to close your books and prepare your document files for your tax preparer (CPA, EA, lawyer, qualified preparer).
You have a legal obligation to file correct tax returns, and it is difficult for the preparer (and expensive for you) when the preparer has to decipher a bookkeeping mess.
Beyond that, sloppy bookkeeping does not allow for accurate business analytics.
If 2025 is a mess, clean it up and make a resolution to do better in 2026.