If you just hired your first employee — or you run payroll for a small shop — the first surprise is usually this: the taxes you withhold from a paycheck are not due on payday. They are due on a separate deposit schedule set by the IRS, and that schedule depends on how much payroll tax you owed in a past lookback period. Miss a deposit and the penalty starts at 2% and climbs fast. This guide walks through the 2026 deposit rules, the filing deadlines that sit on top of them, and a month-by-month example so you can see exactly when money has to leave your account.
Federal payroll taxes — the income tax you withhold plus both halves of Social Security and Medicare — get deposited on one of two schedules: monthly or semiweekly. Monthly means one deposit per month, due by the 15th of the following month. Semiweekly means deposits two to three times a month, with deadlines tied to the day of the week you paid your people.
Which schedule you use is not your choice. The IRS assigns it based on a lookback period: for 2026, that is the 12 months from July 1, 2024 through June 30, 2025. Add up the total employment tax you reported on Forms 941 during that window. If it was $50,000 or less, you are a monthly schedule depositor for 2026. More than $50,000, you are semiweekly. That is the whole decision, per IRS Publication 15 (Circular E), the Employer's Tax Guide.
One thing to clear up early, because it confuses almost every new employer: the deposit schedule and the tax return are separate things. Everyone files Form 941 quarterly, regardless of schedule. The schedule only controls how often the money moves.
If you are on the monthly schedule, the rule is simple: deposit the employment taxes from each month's paydays by the 15th of the next month. January paydays get deposited by February 15, February paydays by March 15, and so on. If the 15th falls on a weekend or federal holiday, the deposit moves to the next business day — the IRS does not give you the preceding Friday.
Most small employers land here. If your total payroll tax liability during the lookback was under $50,000 — which covers a lot of businesses with fewer than roughly 20 employees at typical wages — you will stay monthly for the whole year. The schedule is locked in for the calendar year; it does not change mid-year just because you had a big hiring month. There is one exception, and it is important enough to get its own section below: the $100,000 one-day rule.
There is also a small-employer break worth knowing. If your total Form 941 liability is under $2,500 for the quarter, you can skip deposits entirely and just pay with a timely filed Form 941. A business with one or two part-time employees often falls under this threshold and never touches EFTPS at all.
On the semiweekly schedule, your deposit deadline depends on which day of the week you paid wages:
Payday Wednesday, Thursday, or Friday → deposit by the following Wednesday.
Payday Saturday, Sunday, Monday, or Tuesday → deposit by the following Friday.
Run the example: you pay your crew on Friday, October 2, 2026. Those wages fall in the Wednesday-to-Friday bucket, so the deposit is due Wednesday, October 7. Pay on Tuesday, October 6 instead, and the deadline is Friday, October 9. Each pay period has its own deposit deadline — you do not bundle them, even if two paydays land in the same week.
How do you end up here? If your lookback-period liability topped $50,000. A business running about $400,000 a year in total employment tax liability will be semiweekly. Note that liability, not wages: it includes withheld income tax plus both the employer and employee shares of Social Security (6.2% each up to the $184,500 wage base for 2026) and Medicare (1.45% each, plus the 0.9% additional Medicare tax on wages over $200,000 that the employee pays).
Here is the trap that catches growing businesses. If your accumulated, undeposited employment tax hits $100,000 on any single day during a deposit period, you must deposit it by the next business day — not the 15th, not next Wednesday. And once it happens, you switch to the semiweekly schedule for the rest of that year and all of the next year, no matter what your lookback said.
This commonly bites new employers in their first year. A new employer is a monthly depositor by default, and a big first payroll run — say, back pay for several hires, or a large bonus run — can push one day's accumulated liability past $100,000 before any deposit was made. That is why the IRS warns new employers about this rule specifically in Publication 15.
Practical guardrail: if you are a monthly depositor and any single payroll's tax liability is approaching $100,000, do not wait for the 15th. Deposit the next business day. The penalty for being wrong about this one starts at 2% and the IRS applies it mechanically.
Make it concrete. You run a four-person landscaping crew. In January 2026 you pay $52,000 in total wages across two paydays (the 9th and the 23rd). Your lookback liability was $38,000, so you are monthly. Here is what you owe from January's payrolls, per the same tax tables our calculators use:
Federal income tax withheld: say $6,200 (this varies by each employee's W-4).
Social Security: 6.2% from the employees' wages ($3,224) plus the 6.2% employer match ($3,224) = $6,448. Nobody is near the $184,500 wage base, so the full amount is subject to it.
Medicare: 1.45% employee ($754) plus 1.45% employer ($754) = $1,508.
Total January deposit: about $14,156, due by February 15 (February 15, 2026 is a Sunday, so the actual deadline rolls to Monday, February 16).
Then the return: you report all of this on Form 941 for the first quarter, due April 30. Because you made your deposits on time and in full, you get an automatic 10 extra days — the return would be due May 11, 2026 (May 10 is a Sunday). The deposit and the return are two separate deadlines, two separate obligations, and the IRS penalizes them separately.
One more detail from the Form 941 instructions that saves real money: the shortfall safe harbor. If a deposit comes up short by 2% or less of the liability — say you deposited $13,900 of the $14,156 — there is no penalty as long as you deposit the balance by the makeup deadline. It is a small cushion, not an excuse to underpay.
Deposits are the money movement; filings are the paperwork. For 2026 the federal calendar looks like this:
Form 941 (quarterly payroll tax return): April 30, July 31, October 31, and January 31, 2027. Timely, full deposits buy you 10 extra days on each one.
Form 940 (annual FUTA unemployment tax): January 31, 2027, with the same 10-day extension if all FUTA deposits were timely. FUTA deposits themselves are quarterly, but only if your undeposited FUTA liability exceeds $500.
Forms W-2/W-3 (to employees and the SSA): January 31, 2027 — both the employee copies and the Social Security Administration filing.
Form 945 (backup withholding): January 31, 2027.
All federal deposits go through EFTPS, the Electronic Federal Tax Payment System — paper federal tax deposit coupons were eliminated years ago. Late-deposit penalties scale with how late you are: 2% for 1–5 days, 5% for 6–15 days, 10% for 16 or more days, and 15% if the tax is still unpaid 10 days after the IRS's first notice. And the withheld portion — your employees' income tax and their half of FICA — is trust fund money. Willful failure to turn it over carries a 100% trust fund recovery penalty against the responsible person, not just the business.
State payroll taxes run on their own calendars — most states have monthly or quarterly deposit schedules and separate unemployment insurance filings — so the federal dates above are the floor, not the whole job. Check your state's revenue department before your first payroll, not after.
Later. Withheld income tax and both shares of FICA are deposited on an IRS schedule — monthly (by the 15th of the next month) or semiweekly (by the following Wednesday or Friday, depending on payday) — assigned by your lookback-period liability. Payday is when you withhold; the deposit deadline is days to weeks later.
Look at the 12 months from July 1, 2024 through June 30, 2025. If the total employment tax you reported on Forms 941 in that window was $50,000 or less, you deposit monthly in 2026. Over $50,000, you deposit semiweekly. New employers start monthly until the $100,000 one-day rule changes that.
The IRS charges a late-deposit penalty of 2% (1–5 days late), 5% (6–15 days), 10% (16+ days), or 15% if unpaid 10 days after the first notice, plus interest. A shortfall of 2% or less is forgiven if you make it up by the deadline in the Form 941 instructions. Willful failure to deposit withheld taxes can trigger a 100% trust fund recovery penalty.
Form 941 is due quarterly: April 30, July 31, and October 31 for 2026, and January 31, 2027 for the fourth quarter. If all deposits were timely and in full, each deadline extends by 10 days. The quarterly return is separate from the deposit schedule — everyone files 941 quarterly, whatever their deposit frequency.
Lucas is the founder of Paycheck Calculator and runs this site. Lucas writes and edits every guide on this site himself: before a guide goes live, he checks its figures against IRS publications and the tax tables our calculators actually run on, and updates those figures when the rules change. The guides explain the rules in general terms and are not tax advice. Questions or corrections → contact page.
The 2026 tax figures in this guide come from these official sources: