Year-End Payroll Checklist for Small Business Owners

Year-End Payroll Checklist for Small Business Owners
Complete this checklist in November and December to make tax season smooth and stress-free. Whether you run your own payroll or own an S corporation, these steps ensure accurate W-2s, 1099s, and tax returns—with no surprises.
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Why This Checklist Matters
If you handle your own payroll, staying organized now prevents IRS notices, avoids payroll mismatches, and makes business and personal tax filings faster and cleaner. You don't need to send us anything unless we ask—just complete these steps before December 31.
This proactive approach saves time, reduces stress, and ensures your tax filings are accurate from the start. Small errors caught now prevent big headaches later.
Need Help or Clarification?
Email
cgil@claudiogilcpa.com
Phone
(714) 867-7288
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Step 1: Verify S Corp Owner Pay Stubs
If you're an S corporation owner, verify your most recent paystub is accurate for yourself and your spouse (if on payroll). This simple check prevents major issues during tax season.
Wages & Withholdings
Gross wages
Federal tax withholdings
State tax withholdings
Benefits & Deductions
Health insurance premiums
Retirement contributions
Reimbursements or allowances
🚨 Critical for S Corp Owners
Ensure your payroll setup matches the payroll plan prepared by CG-CPA, including reasonable salary, owner health insurance handling, and retirement strategy. This alignment is essential for a correct 1120-S tax return, accurate Schedule K-1 reporting, proper deductions, and avoiding salary-based audit issues.
Step 2: Review Employee Information
In your payroll software, confirm all employee details are correct before year-end. Catching errors now ensures clean, error-free W-2s in January and prevents frustrated employees and IRS complications.
Fix any incorrect information immediately—it's much harder to correct W-2s after they're issued.
01
Verify Personal Details
Full legal names, current mailing addresses, and Social Security Numbers
02
Check Wage Totals
Total wages, taxable wages, and payroll tax withholdings
03
Review Deductions
401(k) contributions and benefit deductions
Step 3: Clean Up Contractor Information
Review every contractor you paid this year to ensure you file correct 1099-NEC or 1099-MISC forms in January. Missing or incorrect contractor information creates unnecessary hassles and potential penalties.
Verify Names
Correct name or business name exactly as it appears on their W-9
Confirm Tax IDs
Accurate SSN or EIN and current mailing address
Calculate Totals
Year-to-date total paid and signed W-9 on file
Step 4: Track Payments Outside Your Payroll System
If you made any payments outside your regular payroll system, create a list for your records. These off-system payments need documentation to ensure accurate tax reporting.
Types of Payments to Record
Manual checks or cash payments
Zelle, Venmo, PayPal, Cash App
Bonuses or commissions paid outside payroll
For each payment, record who was paid, the date, amount, and purpose. If we need this list during tax prep, upload it to our secure portal.
Step 5: Decide on Year-End Payroll Changes
Before closing the year, finalize decisions about items that impact both payroll filings and your tax deductions. Strategic year-end planning can maximize deductions and benefit your employees.
Year-End Bonuses
Decide on bonus amounts and timing
401(k) Contributions
Additional retirement contributions
Health Insurance
Owner health insurance adjustments
Final Changes
Other payroll adjustments needed
Step 6: Finalize Your Payroll for the Year
Before December 31, confirm everything is accurate and complete. This final review prevents errors on W-2s, 1099s, your business return, and your personal tax return.
1
All Payrolls Entered
Every payroll for the year has been entered and processed
2
Corrections Posted
All corrections and adjustments are posted and accurate
3
Totals Verified
Year-to-date totals are accurate and match expectations
4
Final Reconciliation
Wages, payroll taxes, benefits, and contractor totals reconciled
Benefits of Completing This Checklist
Taking action now creates a smooth, stress-free tax season. You'll enjoy faster turnaround times, fewer follow-up questions, and lower risk of IRS or state notices.
These proactive steps ensure clean and accurate tax filings, giving you peace of mind and more time to focus on growing your business.
Questions? We're Here to Help
You're not alone—if anything feels confusing or unclear, reach out anytime. We're here to make your payroll and tax process as smooth as possible.
Email
cgil@claudiogilcpa.com
Phone
(714) 867-7288
Secure Portal
Financial Cents