The next-day IRS deposit rule (the $100,000 trap)
When a single payroll triggers an overnight federal deposit deadline — the rule that catches small businesses scaling for the first time.
The IRS next-day deposit rule (officially the "$100,000 next-day deposit rule") requires any employer to deposit federal payroll taxes by the next banking day whenever a single payroll triggers $100,000 or more of accumulated unpaid federal tax liability. This rule overrides the monthly and semi-weekly classifications and catches small businesses scaling for the first time. This guide explains how it works.
The trigger
The $100,000 threshold is measured against accumulated unpaid federal tax liability for the current deposit period — not against the size of a single paycheck and not against the cumulative liability for the year. A monthly depositor whose liability has been accumulating throughout the month and crosses $100,000 with a single payroll triggers the next-day rule for that payroll, not the entire month's accumulation. The rule applies to the employee withholding portion (federal income tax withholding plus the employee FICA share) plus the employer FICA match, but not to FUTA or state taxes.
The deadline
Once triggered, the deposit is due the next banking day after the payroll date — not the next calendar day. If a Friday payroll triggers the rule, the deposit is due Monday (the next banking day, since Saturday and Sunday are not banking days). If a Friday payroll triggers the rule and Monday is a federal holiday, the deposit is due Tuesday. The schedules on this site already account for federal-holiday banking-day shifts.
The conversion-to-semi-weekly side effect
An employer who triggers the next-day rule at any point during a calendar year is automatically reclassified as a semi-weekly depositor for the rest of that year and for the entire following year — regardless of the lookback period. This is sometimes a surprise to employers who expected the rule to apply only to the single triggering payroll. Plan for the operational impact: semi-weekly deposits are due Wednesday or Friday after each payroll, so you need to be set up to file on those cadences for the next 12+ months.
Common triggers
The most common scenarios that catch small employers: a one-time bonus payroll funded from a Series A or Series B round; a year-end performance bonus pool that lands all on one payroll; an executive sign-on bonus paid as a single check; a stock-option exercise that triggers payroll tax on the spread between exercise price and FMV; a settlement payment to multiple plaintiffs paid on a single check. Each of these can push accumulated liability over $100,000 in a single payroll. Get a payroll consultant review before any unusual one-time payroll event so you know whether the next-day rule will apply.
Mechanics of paying on time
To hit a next-day deadline, you need to be enrolled in EFTPS (see the EFTPS enrollment guide) and have funds available in the linked bank account. EFTPS deposits scheduled before the daily cutoff (8 PM Eastern) post the next banking day. If you miss the cutoff, the deposit posts the day after — which can mean a 2% to 10% Failure to Deposit penalty depending on the resulting lateness.
Penalties for missing the next-day deadline
The Failure to Deposit penalty stacks on the same schedule as for any other deposit deadline: 2% if 1–5 days late, 5% if 6–15 days, 10% if 16+ days, and 15% if not paid within 10 days of the IRS's first notice. The penalty applies to the entire deposit, so a missed $200,000 next-day deposit at the 5-day late tier costs $10,000. The penalty is non-deductible. Same-day ACH funding services can rescue you in extremis if you discover the issue on the morning of the deadline.
Avoiding the trigger
If you can predict that a payroll will trigger the rule, the easiest mitigation is splitting the payroll across two separate run dates so neither one accumulates over $100,000 in unpaid liability. This works for one-time bonus payrolls and year-end bonuses. It does not work for regular wages — you can't split a regular paycheck into two pieces just to avoid the deposit rule. The IRS will look through the structure if it's clear the only purpose was to dodge the threshold.