Quick Answer: Employers must deposit federal payroll taxes (income tax withholdings, Social Security, and Medicare) on a schedule determined by the IRS — either semi-weekly or monthly — based on the total tax liability reported during a lookback period. Missing a deposit deadline triggers penalties ranging from 2% to 15% of the underpaid amount, making timely compliance essential.
What Are Payroll Tax Deposits?
Payroll tax deposits are the periodic payments employers must make to the federal government to cover taxes withheld from employee paychecks plus the employer's share of Social Security and Medicare (FICA) taxes. These deposits are separate from estimated tax payments for income tax and from state-level payroll tax obligations. The IRS requires that these deposits be made electronically through the Electronic Federal Tax Payment System (EFTPS).
The total deposit amount each period includes three components:
- Federal income tax withheld from employee wages
- Employee share of Social Security tax (6.2% up to the wage base)
- Employee share of Medicare tax (1.45%, plus 0.9% Additional Medicare Tax above $200,000)
Employers also owe a matching share of Social Security and Medicare, which is included in the same deposit. For a detailed breakdown of withholding tax obligations, see our dedicated guide.
Determining Your Deposit Schedule
The IRS assigns employers to one of two deposit schedules based on the total employment taxes reported during a four-quarter lookback period:
| Deposit Schedule | Lookback Period Liability | Deposit Due Date |
|---|---|---|
| Monthly Depositor | $50,000 or less | 15th day of the following month |
| Semi-Weekly Depositor | More than $50,000 | By Wednesday for payday Wed–Fri; by Friday for payday Sat–Tue |
The lookback period is the 12-month period ending the preceding June 30. For example, the 2026 deposit schedule is based on taxes reported from July 1, 2024 through June 30, 2025. If your total liability during that window was $50,000 or less, you are a monthly depositor for all of 2026. If it exceeded $50,000, you are a semi-weekly depositor.
The $100,000 Next-Day Rule
Regardless of your deposit schedule, if you accumulate $100,000 or more in undeposited taxes on any day during a deposit period, you must deposit the taxes by the next business day. This rule applies to both monthly and semi-weekly depositors. Accumulating $100,000 in undeposited taxes also automatically moves you to semi-weekly deposit status going forward.
Monthly Deposit Schedule in Detail
Monthly depositors must remit all payroll taxes for a given month by the 15th day of the following month. If the 15th falls on a weekend or federal holiday, the deposit is due the next business day.
Example — Monthly Depositor
For wages paid in January 2026, the deposit covering all federal income tax withholdings plus both employer and employee FICA is due February 15, 2026 (or the next business day if the 15th is a weekend or holiday).
Semi-Weekly Deposit Schedule in Detail
Semi-weekly depositors follow a rule based on the payday, not the pay period:
- If payday falls on Wednesday, Thursday, or Friday, deposit is due the following Wednesday.
- If payday falls on Saturday, Sunday, Monday, or Tuesday, deposit is due the following Friday.
This schedule can feel complex for employers with multiple payrolls in a single week. Each payday triggers its own deposit deadline independently. A business paying employees on both Wednesday and Monday, for instance, would have deposits due the following Wednesday (for Wednesday's payroll) and the following Friday (for Monday's payroll).
Penalties for Late Deposits
The IRS imposes a penalty structure based on how late the deposit is made. The penalties are calculated as a percentage of the underpaid amount:
| Deposit Timing | Penalty Rate |
|---|---|
| 1 to 5 days late | 2% |
| 6 to 15 days late | 5% |
| More than 15 days late or not deposited at all | 10% |
| Amounts not deposited or deposited directly to the IRS instead of EFTPS | 15% |
These penalties add up quickly. A business with a $10,000 payroll tax liability that deposits 10 days late faces a $500 penalty. For ongoing noncompliance, the IRS may also assess trust fund recovery penalties against responsible individuals — including officers and payroll managers — personally. This makes payroll compliance one of the most critical obligations for small business owners.
How to Make Payroll Tax Deposits
All federal payroll tax deposits must be made electronically through EFTPS. The IRS no longer accepts paper coupons or checks for federal tax deposits. To use EFTPS:
- Enroll at eftps.gov — allow 5–7 business days for activation
- Schedule payments in advance to avoid missing deadlines
- Use same-day wire transfer if you miss the EFTPS cutoff (typically 8:00 PM ET)
Many payroll providers and accounting software platforms can automate EFTPS deposits. If you use a payroll service, confirm they are making timely deposits on your behalf — the employer remains legally responsible even if the service fails to deposit.
State Payroll Tax Deposit Requirements
In addition to federal deposits, most states require separate payroll tax deposits for state income tax withholdings and state unemployment (SUI) taxes. State deposit schedules vary widely — some follow the federal semi-weekly/monthly model, while others have quarterly or annual requirements based on liability thresholds.
Check your state's department of revenue or employment agency for specific deposit schedules. Maintaining a tax compliance calendar helps track both federal and state deadlines in one place.
Common Payroll Tax Deposit Mistakes
- Using the wrong deposit schedule: Failing to update from monthly to semi-weekly when the lookback period liability exceeds $50,000. This typically happens when a business grows significantly.
- Missing the $100,000 next-day rule: Accumulating $100,000 or more and not depositing by the next business day is one of the most expensive errors employers make.
- Depositing the wrong amount: Miscalculating FICA or including non-taxable compensation. Reconcile deposits to payroll journal entries each pay period.
- Paying by check instead of EFTPS: The IRS charges a 15% penalty on deposits made by check or cash instead of electronic payment.
- Assuming your payroll service handles everything: The employer is liable for any deposit failures by a payroll provider. Review deposit confirmations regularly.
Reconciling Payroll Tax Deposits
At the end of each quarter, reconcile your payroll tax deposits against Form 941 (Employer's Quarterly Federal Tax Return). The total deposits for the quarter should match the tax liability shown on the form, adjusted for any overpayments or underpayments carried from prior quarters. If you discover a shortfall, make a catch-up deposit immediately to minimize penalties.
Business owners who are also self-employed should review the self-employment tax guide for additional obligations on owner compensation that may not go through the standard payroll deposit system.
Key Takeaways
- Your deposit schedule (monthly or semi-weekly) is determined by your total payroll tax liability during the IRS lookback period — not by the current quarter's liability.
- The $100,000 next-day deposit rule overrides your regular schedule and triggers semi-weekly status.
- All federal deposits must be made electronically through EFTPS — paper payments carry a 15% penalty.
- Late deposit penalties range from 2% to 15% and can be assessed personally against responsible individuals.
- Reconcile deposits to Form 941 each quarter and maintain a compliance calendar to track both federal and state deadlines.
