Form 941 is filed quarterly. The taxes on it are not paid quarterly. For most employers, withheld income tax and both shares of Social Security and Medicare have to be deposited during the quarter, on a schedule set by Treasury Regulation 31.6302-1.
Miss that schedule and two things happen. The failure-to-deposit penalty under IRC 6656 starts. And, more importantly for owners, trust fund money that should have left the business account stays in it, where it tends to get spent. That is how most Trust Fund Recovery Penalty cases begin.
Which Taxes the Deposit Rules Cover
Treasury Regulation 31.6302-1(e) defines "employment taxes" for deposit purposes to include the employee portion of FICA withheld under section 3102, the employer FICA tax under section 3111, and income tax withheld under sections 3402 and 3405, with certain exceptions. The trust fund portion and the employer's share move together on the same deposit schedule.
Step One: Monthly or Semiweekly?
Under Regulation 31.6302-1(a) and (b), every employer is either a monthly depositor or a semiweekly depositor for the entire calendar year, based on an annual determination.
- Monthly depositor: aggregate employment taxes reported for the lookback period are $50,000 or less.
- Semiweekly depositor: aggregate employment taxes reported for the lookback period exceed $50,000.
The lookback period
For Form 941 filers, Regulation 31.6302-1(b)(4) defines the lookback period for a calendar year as the twelve-month period ended the preceding June 30. The regulation's own example: the lookback period for calendar year 2006 is July 1, 2004 through June 30, 2005. For Form 944 filers, the lookback period is the second calendar year before the current year.
Two details matter:
- The amount that counts is what was reported on the original returns. Amounts on adjusted returns or refund claims filed after the original due date are not taken into account for the lookback test.
- New employers are treated as having zero liability for any part of the lookback period before they started or acquired the business.
Step Two: When Deposits Are Due
Monthly rule
Under Regulation 31.6302-1(c)(1), a monthly depositor must deposit employment taxes on payments made during a calendar month by electronic funds transfer by the 15th day of the following month. If the 15th falls on a Saturday, Sunday or District of Columbia legal holiday, the next business day works.
Semiweekly rule
Under Regulation 31.6302-1(c)(2):
| Payday falls on | Deposit due |
|---|---|
| Wednesday, Thursday and/or Friday | On or before the following Wednesday |
| Saturday, Sunday, Monday and/or Tuesday | On or before the following Friday |
The regulation guarantees semiweekly depositors at least three business days after the close of the semiweekly period. If one of those days is a legal holiday, an extra day is added for each holiday. If a quarter ends in the middle of a semiweekly period, the regulation requires two separate deposits, one for each return period.
The $100,000 next-day rule
Regulation 31.6302-1(c)(3) overrides both schedules. If on any day within a deposit period an employer has accumulated $100,000 or more of employment taxes, those taxes must be deposited by the close of the next day, or the next business day if that day is a weekend or legal holiday.
It also changes your status. Under Regulation 31.6302-1(b)(2)(ii), a monthly depositor who hits the $100,000 rule becomes a semiweekly depositor immediately, for the rest of that year and the following year.
Business Days and Holidays
Regulation 31.6302-1(c)(4) says deposits are required only on business days, and that "legal holiday" means a legal holiday in the District of Columbia. A statewide holiday that is not a District of Columbia holiday does not move the deadline. The regulation gives an example of exactly that situation.
Electronic Deposits Required
For deposits made after December 31, 2010, Regulation 31.6302-1(h)(2)(iii) requires employers with a deposit obligation to use electronic funds transfer, unless exempted by IRS guidance. A deposit by electronic funds transfer is deemed made when the amount is withdrawn from the taxpayer's account, provided the United States is the payee and it is not returned or reversed. Each return period's deposit must be made separately from another's.
The Safety Valves
Single deposit safe harbor
Under Regulation 31.6302-1(f)(1), a deposit obligation is treated as satisfied if the shortfall does not exceed the greater of $100 or 2 percent of the amount required, and the shortfall is deposited by the make-up date. For monthly depositors, the make-up date is the due date of the quarterly return. For semiweekly and next-day deposits, it is the first Wednesday or Friday, whichever is earlier, on or after the 15th day of the month following the month the deposit was due, or the return due date if earlier.
De minimis rule
Under Regulation 31.6302-1(f)(4), if total accumulated employment taxes for the return period are less than $2,500 and fully deposited or paid with a timely filed return, they are deemed timely deposited. For quarters beginning on or after January 1, 2010, the rule also applies if the preceding quarter's total was under $2,500, unless the $100,000 rule is triggered.
IRM 5.7.8.4 notes that Form 944 filers can drift into problems here. If a Form 944 filer's liability reaches $2,500 or more for a calendar quarter, it is not exempt from the regular deposit rules.
Interest-free adjustments
Regulation 31.6302-1(c)(7) says an employer filing an adjusted return under Regulation 31.6205-1 to report taxes from a prior period pays the adjustment when it files, and the amount timely paid is deemed timely deposited. Our Form 941-X guide covers that process.
The Regulation's Own Examples
Regulation 31.6302-1(d) walks through several scenarios that make the rules concrete:
- Monthly depositor. An employer that reported $42,000 of employment taxes during its lookback period is a monthly depositor for the whole year. Taxes accumulated in December are due by January 15, pushed to the next business day when the 15th is a Sunday and the following Monday is a federal holiday.
- Semiweekly depositor. An employer that reported $88,000 during its lookback period is a semiweekly depositor. A Friday payday deposit is due the following Wednesday, or Thursday if a legal holiday falls in between.
- Next-day rule. An employer that accumulates $110,000 on a Monday payday must deposit by the next business day, and if it was a monthly depositor, it becomes subject to the semiweekly rule the next day.
- Two obligations in one period. A semiweekly depositor that accumulates $115,000 on Monday and another $30,000 on Tuesday has a next-day deposit for the first amount and a separate Friday deposit for the second.
Why This Matters Beyond Penalties
The failure-to-deposit penalty is the obvious consequence. Our IRC 6656 guide explains the procedural side, including relief and designation rights. But the bigger consequence is what happens to the money.
Withheld taxes are held in trust for the United States under IRC 7501. Every day they sit in the operating account past the deposit date, they are exposed to being spent on rent, inventory and payroll. When that happens, the question stops being about penalties and starts being about who will be held personally liable. See our section 7501 guide.
Revenue Officers know this. IRM 5.7.8.5 tells them, at initial contact with repeat or pyramiding employers, to document the employer's deposit schedule and secure electronic payment confirmations so they can monitor compliance until the case is resolved.
Practical Habits That Prevent Payroll Tax Debt
- Confirm your depositor status each year using the lookback period.
- Calendar deposit dates for every payroll, not just the quarterly return.
- Watch for any day you accumulate $100,000. That changes your status.
- Verify deposits yourself in the electronic payment system, even if a payroll provider makes them.
- Treat the withholding as gone the day you run payroll.
The firm's main site has more on how it helps businesses already behind on payroll taxes.
Deposit dates are not suggestions. They are the line between a cash flow problem and a personal liability problem. If you have crossed it, call (813) 229-7100. Let's talk.
Frequently Asked Questions
How do I know if I am a monthly or semiweekly depositor?
Under Treasury Regulation 31.6302-1, you are a monthly depositor if employment taxes reported for the lookback period are $50,000 or less, and a semiweekly depositor if they exceed $50,000. For Form 941 filers, the lookback period is the twelve months ending the preceding June 30.
When are monthly deposits due?
By the 15th day of the following month, by electronic funds transfer, moved to the next business day if the 15th is a weekend or District of Columbia legal holiday.
What is the $100,000 next-day deposit rule?
If you accumulate $100,000 or more of employment taxes on any day in a deposit period, you must deposit by the close of the next business day, and a monthly depositor becomes a semiweekly depositor for the rest of that year and the next.
Is there any tolerance for small deposit shortfalls?
Yes. A shortfall no greater than $100 or 2 percent of the required deposit, whichever is greater, is treated as satisfied if made up by the applicable make-up date.
Do small employers have to make deposits during the quarter?
If total employment taxes for the return period, or for the preceding quarter, are less than $2,500 and the amount is paid with a timely filed return, the de minimis rule treats it as timely deposited, unless the $100,000 rule applies.
This guide is general information, not legal advice, and reading it does not create an attorney-client relationship. Payroll tax cases turn on their own facts and deadlines.