The end of the financial year is the most important time to get your books in order. Clean year-end books mean faster tax preparation, fewer IRS questions and a clear picture of how your business performed. Here is a complete checklist to close your books properly.
Why Year-End Bookkeeping Matters
Your tax return is only as accurate as your books. If your bookkeeping has gaps, errors or uncategorised transactions, your accountant will either spend more time — and charge you more — fixing them, or file a return with mistakes that could trigger an audit. A clean close saves money and reduces risk.
The Complete Year-End Checklist
Reconcile all bank accounts. Every bank account and credit card account should be reconciled through December 31. This means every transaction in your accounting software matches your bank statement with no unexplained differences.
Review accounts receivable. Run your AR aging report and confirm every outstanding invoice is either still collectible or written off as bad debt. Invoices that are clearly uncollectible should not sit on your balance sheet inflating your assets.
Review accounts payable. Confirm all bills you owe are recorded in your accounting software. Any bills received in December but not yet entered must be recorded before closing the year.
Reconcile petty cash. If your business uses petty cash, count it physically and reconcile the balance to your books. Any discrepancy needs to be investigated and adjusted.
Record depreciation. If your business owns fixed assets — equipment, vehicles, computers — annual depreciation must be recorded before closing. Your accountant will advise on the correct amounts based on your asset schedule.
Review owner draws and distributions. All owner draws, shareholder distributions and contributions for the year must be accurately recorded. These affect equity on your balance sheet and your personal tax return.
Verify payroll totals. Total payroll for the year in your accounting software must match your payroll records and the W-2 forms issued to employees. Discrepancies here create problems with both the IRS and state tax agencies.
Confirm 1099 obligations. Review all payments made to contractors during the year. Any contractor paid $600 or more for services needs a 1099-NEC issued by January 31.
Review expense categorisation. Scan through your major expense accounts and confirm transactions are categorised correctly. A large miscellaneous expense category is a red flag — those transactions should be properly classified.
Back up your data. Export a backup of your QuickBooks or Xero file before making any year-end adjustments. If something goes wrong during the close, you want a clean restore point.
What to Give Your Accountant
Once your year-end books are clean, provide your accountant with a profit and loss statement for the full year, a balance sheet as of December 31, a bank reconciliation summary for all accounts, your fixed asset schedule and a list of any unusual transactions they should know about.
The more organised your handover, the faster your return gets filed and the lower your accounting bill.
Timing
Start your year-end close in the first two weeks of January. Waiting until March creates unnecessary pressure and risks missing information that has already been archived or forgotten.
How Auxilio Handles Year-End
For all ongoing bookkeeping clients, we complete the full year-end close as part of our standard service — no extra charge. We deliver a clean set of year-end financials by the third week of January, ready for your tax preparer. For new clients coming to us specifically for year-end cleanup, we offer a fixed-price engagement with a clear timeline.
Book a free call to discuss your year-end bookkeeping and tax preparation needs.
This is exactly what I needed. We’ve been putting off our year-end close and didn’t realise how much the AR aging report matters before filing. Bookmarking this for our accountant.