What to Do If Payroll Tax Deposits Are Running Late: A September 2026 Checklist

Why Timely Payroll Tax Deposits Matter

Late payroll‑tax deposits can quickly turn a manageable cash‑flow issue into a costly compliance problem. The IRS imposes escalating penalties—2 % for deposits 1–5 days late, 5 % for 6–15 days, and 10 % for more than 15 days — plus interest on the unpaid amount. Beyond the financial hit, repeated late deposits can trigger audits, damage your business’s reputation, and even jeopardize your ability to claim certain tax credits. Understanding the rules and acting fast is essential for protecting your bottom line.

Quick Reference: September 2026 Deposit Schedule

Deposit Type	Due Date (2026)	Late‑Deposit “Make‑Up” Deadline
Monthly deposits (payroll tax < $50,000)	15th of the following month	15th of the next month after the missed deadline
Monthly deposits (payroll tax ≥ $50,000)	Next business day after payroll	2 business days after the missed deadline
Quarterly deposits (Form 941)	End of month following quarter end	End of the following month
Annual deposits (Form 940)	January 31 2027	February 28 2027

These dates are drawn from the IRS’s official September 2026 notice #1 and Publication 15 #4. If you miss a deadline, the “make‑up” date is the latest day you can submit the deposit without incurring the higher penalty tier.

Step‑by‑Step Late‑Deposit Checklist

1. Identify Which Deposits Are Late

1. Pull your payroll register for the last 12 weeks.
2. Compare each deposit date to the schedule above.
3. Flag any deposit that missed its due date.
4. Note the amount of tax owed for each missed deposit.

2. Calculate Potential Penalties and Interest

The IRS provides a simple formula: Penalty = Tax × Penalty Rate. Use the tiered rates from the Failure‑to‑Deposit penalty page #3. Add daily interest at the current federal rate (published on the IRS site). A quick spreadsheet can automate this calculation.

3. Make the “Make‑Up” Deposit via EFTPS

The Electronic Federal Tax Payment System (EFTPS) is the safest, fastest way to submit late deposits. Follow these steps:

1. Log in to your EFTPS account.
2. Select “Make a Deposit” and choose “Payroll Tax”.
3. Enter the exact tax amount, including the calculated penalty and interest.
4. Choose the “Make‑Up” date as the deposit date (the latest allowed date from the table above).
5. Save the confirmation receipt for your records.

EFTPS instructions and the list of acceptable make‑up dates are detailed on the IRS EFTPS page #5. Ensure the payment is processed before the make‑up deadline to avoid the next penalty tier.

4. File Corrected Forms (if needed)

If the late deposit also means a filing error (e.g., an under‑reported tax on Form 941), file an amended return:

• Use Form 941‑X for quarterly corrections.
• Attach a statement explaining the late deposit, the penalty paid, and the steps taken to prevent recurrence.
• Submit the amendment within 30 days of the make‑up deposit to limit additional interest.

5. Document the Incident Internally

Create a simple log entry:

Date	Deposit Type	Original Due	Make‑Up Date	Tax Owed	Penalty	Interest	Total Paid
Store this log in a shared folder (e.g., Google Drive) and notify your accountant or bookkeeper. Documentation demonstrates good‑faith effort if the IRS later reviews your account.

6. Communicate with Employees (if applicable)

If the late deposit affects employee withholdings (e.g., delayed Social Security credits), send a brief memo:

• Explain the situation and the corrective actions taken.
• Reassure employees that their tax credits will be restored once the make‑up deposit clears.
• Provide a timeline for when they can expect confirmation.

Transparent communication helps maintain trust and reduces turnover risk.

7. Implement Preventive Controls

Control	How to Implement
Automated Calendar Alerts	Set up recurring reminders 10 days before each deposit deadline in Outlook or Google Calendar.
Payroll Software Integration	Ensure your payroll system automatically pushes deposit amounts to EFTPS. Most modern platforms (e.g., Gusto, QuickBooks Payroll) have this feature.
Quarterly Review	At the end of each quarter, run the Payroll Tax Deposit Checklist for Form 941 Filers #2 to verify compliance.
Penalty Reserve Fund	Allocate a small percentage of payroll expenses to a “penalty reserve” account to cover unexpected penalties without hurting cash flow.

Frequently Asked Questions

Q: What if I can’t afford the penalty right now? A: The IRS offers installment agreements for penalty balances up to $50,000. Submit Form 9465 (Installment Agreement Request) along with a payment plan proposal.

Q: Does a late deposit affect my ability to claim the Employee Retention Credit? A: Not directly, but the IRS may scrutinize all payroll‑related filings. Keeping deposits current helps avoid a broader audit that could jeopardize credit eligibility.

Q: Can I request penalty abatement? A: Yes, if you have a reasonable cause (e.g., natural disaster, system outage). Submit a written request with supporting documentation to the IRS office that issued the penalty notice.

Resources for Ongoing Compliance

• IRS Notice 931 (Sept 2026) – Full deposit schedule and make‑up dates #1
• IRS Failure‑to‑Deposit Penalty – Detailed penalty tiers and interest rates #3
• Publication 15 (Employer’s Tax Guide) – Comprehensive rules on deposit timing and methods #4
• EFTPS User Guide – Step‑by‑step electronic payment instructions #5
• Payroll Tax Deposit Checklist for Form 941 Filers – Practical worksheet for quarterly compliance #2

By following this checklist, small‑business owners can quickly remediate late payroll‑tax deposits, limit penalties, and put robust safeguards in place for future compliance.

Sources and further reading

Use these primary references when checking the guidance above:

• U.S. Small Business Administration
• Internal Revenue Service
• Notice 931 (Rev. September 2026)
• Payroll Tax Deposits: EFTPS Schedule, Trust Fund Taxes, and Common Mistakes | Blue Cloud CPA