Year-End Bookkeeping Checklist (2025): A Simple Guide for a Smooth Tax Season

December doesn’t have to mean long nights and last-minute panic. Use this practical checklist to close 2025 confidently and set yourself up for a strong start to 2026.

1. Reconcile everything

Bank accounts, credit cards, loans, payment processors (Stripe/PayPal/Square). Make sure ending balances match statements and every transaction is categorized.

2. Clean up A/R and A/P

  • Send final reminders for unpaid invoices and write off truly uncollectible amounts (with your CPA’s guidance).

  • Pay outstanding vendor bills or confirm what will roll into January.

3. 1099 readiness (contractors & vendors)

  • Collect or confirm W-9s now.

  • Verify totals paid to each contractor (generally ≥ $600) and their payment method (card/PayPal may be reported by processors).

  • Prep your 1099-NEC/1099-MISC list so filing in January is painless.

4. Payroll wrap-up

Confirm final payroll dates, year-to-date totals, benefits, and owner draws. Ensure addresses and SSNs are correct for W-2s. Align with your payroll provider on year-end reports.

5. Inventory & COGS (if applicable)

Do a physical count, adjust shrink/damage, and tie out inventory to your books so COGS is accurate for the year.

6. Fixed assets & year-end purchases

Log new equipment/software, keep invoices, and flag items for capitalization/depreciation (ask your CPA about Section 179/bonus depreciation). Don’t buy just for a deduction—buy what moves the business forward.

7. Expense review & supporting docs

Tighten categories, attach receipts, and tag business vs. personal. Clean backup now = faster taxes and fewer questions later.

8. Tax planning (before 12/31)

Quick check-in with your CPA to estimate tax liability, refine quarterly payments, and consider timing for retirement contributions, bonuses, or charitable giving.

9. Back up, document, and close

Export year-end reports (P&L, Balance Sheet, Cash Flow, General Ledger). Save to secure cloud storage, document any year-end journal entries, and set your closing date in QuickBooks to prevent accidental changes.

10. Plan 2026 budgets & KPIs

Use this year’s numbers to set realistic revenue targets, spending plans, and a simple scorecard (e.g., gross margin, A/R days, net profit, cash runway).

Final Thoughts

A clear year-end process turns tax season from stressful to straightforward. If you’d like an expert to review your books—or handle the whole checklist—Synergy Bookkeeping is here to help.

👉 Ready for a smooth year-end? Book a free consultation and let’s get your books buttoned up.

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