End-of-Year Tax Prep
- Melanie Queen
- 4 days ago
- 3 min read
With children back in school and tax extension deadlines approaching, now is an ideal time to meet with your tax preparer. As we enter the final quarter of 2025, it's important to review your finances and ensure you're maximizing all available tax deductions and year-end planning opportunities.
I created a checklist for you to get ready for your end-of year prep! As always, if you need help getting your bookkeeping, up to date, please reach out so we can schedule a time to get your 2025 books to date for your meeting with your tax preparer!

End-of-Year Tax Prep & Deduction Planning Checklist
This checklist is designed for small business owners, therapists, coaches, and solopreneurs who want to maximize deductions and wrap up the year financially clean and organized.
1. Organize and Review Financial Records
Task | Why It Matters |
☐ Reconcile all bank, credit card, and payment accounts | Ensures your income and expenses are accurately recorded |
☐ Review your profit & loss (P&L) and balance sheet | Identifies areas for deductions or adjustments |
☐ Check for missing invoices or uncategorized expenses | Helps avoid missing tax-deductible business costs |
☐ Back up digital records and secure paper documents | Keeps you audit-ready and compliant with IRS guidelines |
Tip: Create cloud folders labeled by month and category so next year’s records are easier to manage.
2. Maximize Deductible Expenses Before December 31
Expense Type | Example Actions |
☐ Office supplies & software | Buy needed items before year-end (e.g., printer ink, Zoom, QuickBooks) |
☐ Continuing education | Prepay for eligible trainings or certifications |
☐ Professional services | Pay for legal, accounting, or business consulting now |
☐ Business equipment | Use the Section 179 deduction for larger purchases (e.g., laptops) |
☐ Marketing expenses | Run final campaigns or renew annual subscriptions |
☐ Charitable contributions | Make donations to qualified nonprofits for a potential deduction |
Tip: Only expenses paid or charged by December 31 count for this tax year.
3. Review and Classify Business-Related Deductions
Task | Considerations |
☐ Home office deduction | Measure your work area and calculate based on IRS simplified or actual method |
☐ Mileage & auto expenses | Download mileage logs or use apps like MileIQ |
☐ Meals & travel | Ensure proper receipts and that the expenses are truly business-related |
☐ Health insurance (self-employed) | Check eligibility for the self-employed health insurance deduction |
☐ Retirement contributions | Consider contributing to a SEP IRA or solo 401(k) if applicable |
Tip from IRS: You can contribute to certain retirement accounts after year-end but still deduct them from the current tax year.
4. Verify Employee & Contractor Records
Task | Why It Matters |
☐ Confirm W-9s for all 1099-eligible contractors | Avoid last-minute scrambling in January |
☐ Update payroll reports and W-2 info | Ensure accurate end-of-year wage reporting |
☐ Schedule bonuses or year-end payouts | These may be deductible if paid before December 31 |
5. Estimate Tax Liability & Make Final Adjustments
Task | Tool or Tip |
☐ Run a year-end income projection | Helps avoid surprises and guides deductions |
☐ Use IRS Withholding Estimator or consult a tax pro | Fine-tune withholding or estimated tax payments |
☐ Consider deferring income to next year (if cash-based) | Delay sending invoices or collecting payments if it makes sense tax-wise |
☐ Prepay expenses if income was unusually high | Level out your tax burden with planned deductions |
6. Prep for Tax Filing Season
Task | Why It Matters |
☐ Create a folder for 1099s, W-2s, and tax documents | Keeps everything in one place for January-April |
☐ Choose or confirm your tax preparer | Secure help early — they get busy fast after Jan. 1 |
☐ Schedule a January bookkeeping review | Ensures accuracy before you file and reduces CPA fees |
☐ Consider a tax planning session | Especially helpful if you’ve had a big income change, new hires, or business structure updates |
Final Tip:
Start fresh in January. Set up better tracking systems (apps, spreadsheets, or a bookkeeper) to make next year's tax season less stressful.
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