The IRS sets your deposit schedule based on how much payroll tax you owe in a given period

Your deposit schedule is determined by two things: your total payroll tax liability over a specific lookback period, and whether you are classified as a monthly or semi-weekly depositor. The IRS does not let you choose. They assign your schedule based on a rule that looks at your tax liability during a set window of time in the past, usually the prior four quarters. If you owe more than a certain threshold, you move to a more frequent schedule.

The threshold that triggers semi-weekly deposits is $50,000 in payroll tax liability during the lookback period. If your total federal income tax withheld plus your employer and employee Social Security and Medicare taxes exceed $50,000 during that window, you must deposit semi-weekly — meaning twice per week on specific days tied to when you pay your employees. If you stay below $50,000, you deposit monthly, meaning once per month by the 15th of the following month.

New businesses start as monthly depositors by default. You remain monthly until the IRS notifies you that you have crossed the $50,000 threshold. Once you cross it, you stay semi-weekly unless your liability drops below $50,000 for a full lookback period, which can take months or longer to happen.

Key Takeaways

  • The IRS assigns your deposit schedule based on payroll tax liability during a lookback period, not on your choice or business size.
  • Monthly depositors owe taxes by the 15th of the month following the pay period; semi-weekly depositors owe on Wednesday or Friday depending on when they pay employees.
  • The $50,000 threshold during the lookback period determines whether you move from monthly to semi-weekly deposits.
  • New businesses start as monthly depositors and only move to semi-weekly if the IRS notifies you that you have crossed the threshold.
  • Your schedule can change, but the IRS controls when and how — you cannot request to move to a different schedule on your own.

How the lookback period works and when it resets

The lookback period is the four calendar quarters immediately before the current quarter. For example, if you are in the first quarter of 2024, the IRS looks at your tax liability from the first quarter of 2023 through the fourth quarter of 2023. This window rolls forward every quarter, so your schedule can change on January 1, April 1, July 1, or October 1 each year.

The IRS checks your liability during this lookback period and compares it to the $50,000 threshold. If you owed $50,000 or more during those four quarters, you are a semi-weekly depositor for the current quarter. If you owed less than $50,000, you remain monthly. This means your schedule is set for the entire quarter and does not change mid-quarter, even if your payroll spikes or drops.

Because the lookback period rolls every quarter, a business that crosses $50,000 in the third quarter might not become a semi-weekly depositor until the first quarter of the following year — the quarter after the lookback period includes three full quarters of high liability.

Monthly deposit rules and deadlines

If you are a monthly depositor, you owe federal payroll taxes by the 15th of the month following the month in which you paid wages. For example, if you pay employees on June 30, your payroll taxes for June are due by July 15. The deposit must be made electronically through the Electronic Federal Tax Payment System (EFTPS) or through your payroll provider's payment processor.

Monthly depositors include all new businesses, most small businesses with annual payroll under roughly $600,000, and any business whose lookback period liability stayed below $50,000. You remain on this schedule until the IRS notifies you otherwise. The notification usually arrives in the form of a notice in the mail, though some payroll software will flag the change based on IRS records.

If you miss a monthly deposit deadline, the IRS assesses a penalty based on how late the payment is. A payment one to five days late incurs a 2% penalty; six to fifteen days late is 5%; and more than fifteen days late is 10%. These penalties apply to the unpaid tax amount, not to your total payroll.

Semi-weekly deposit rules and which days apply

Semi-weekly depositors must deposit payroll taxes twice per week, but the specific days depend on when you pay your employees. If you pay employees on Wednesday, Thursday, or Friday, those taxes are due the following Wednesday. If you pay on Saturday, Sunday, Monday, or Tuesday, those taxes are due the following Friday. This means you could owe taxes on both a Wednesday and a Friday in the same week, or you might owe only once if all your payroll falls on the same day of the week.

Semi-weekly deposits must also be made through EFTPS or a payroll processor. The deadline is the same regardless of the day: the deposit must clear by the due date. If the due date falls on a weekend or federal holiday, the deadline moves to the next business day. For example, if your Wednesday deposit is due on a Saturday, you have until Monday to deposit.

Semi-weekly depositors face the same penalty structure as monthly depositors if they miss a deadline. Because semi-weekly depositors owe more frequently, missing even one deposit can result in a larger penalty than a monthly depositor would face for a single miss.

What happens when your liability crosses or falls below the threshold

If your payroll grows and your lookback period liability reaches $50,000 or more, the IRS will notify you that you are now a semi-weekly depositor. This notification usually arrives by mail and specifies the quarter in which the change takes effect. You do not have to request the change or do anything to activate it — it happens automatically based on IRS records.

Conversely, if your payroll shrinks and your lookback period liability falls below $50,000 for a full four-quarter window, you can return to monthly deposits. However, the IRS does not automatically notify you of this change in the same way. You may need to contact the IRS or check your account through EFTPS to confirm your current status. Some payroll providers will flag the change, but you should verify independently rather than assume.

The transition between schedules always happens at the start of a quarter. You cannot be switched mid-quarter, even if your liability changes dramatically. This means if you cross $50,000 in October, you will not become semi-weekly until January 1 of the following year.

How to find out which schedule you are currently on

Your payroll provider or accountant usually knows your deposit schedule and will remind you of upcoming deadlines. However, you can verify your status directly through the IRS. Log into your EFTPS account at eftps.gov and check your enrollment status, which displays whether you are monthly or semi-weekly. You can also call the IRS at 1-800-829-1040 and ask a representative to confirm your deposit schedule.

If you have recently crossed the $50,000 threshold and are unsure whether the change has taken effect, check EFTPS or call the IRS before the start of the next quarter. Depositing on the wrong schedule — for example, depositing monthly when you should be semi-weekly — can result in penalties even if you eventually pay the full amount owed.

Some businesses receive a Notice of Deposit Schedule from the IRS when their status changes. Keep this notice for your records. If you disagree with the IRS's information of your schedule, you can request a review, though the threshold and lookback period rules are fixed and rarely subject to dispute.

Common mistakes and how to avoid them

The most common mistake is depositing on the wrong schedule after a change takes effect. A business that grows quickly might not realize they have crossed $50,000 until they receive a notice from the IRS — by then, they may have already missed semi-weekly deadlines. To avoid this, review your payroll tax liability quarterly and compare it to the $50,000 threshold. If you are close, assume you will move to semi-weekly and begin depositing twice per week before the official notice arrives.

Another mistake is confusing the deposit schedule with the payroll tax return schedule. You must deposit payroll taxes on your assigned schedule (monthly or semi-weekly), but you also file Form 941 (Employer's Quarterly Federal Tax Return) every quarter regardless of your deposit schedule. Missing a deposit deadline does not extend your Form 941 deadline, which is always the last day of the month following the quarter.

A third mistake is assuming that paying through payroll software means you are depositing on time. Payroll software can schedule deposits, but you must ensure the software is set to your correct schedule. If your schedule recently changed and your software was not updated, deposits may go out on the wrong days.

Frequently Asked Questions

Can I request to be a semi-weekly depositor even if my liability is below $50,000?

No. The IRS assigns your schedule based on the lookback period threshold. You cannot request a different schedule. If you want to deposit more frequently for cash flow or accounting reasons, you can deposit more than required, but your official schedule remains monthly until the IRS moves you to semi-weekly.

What if I have multiple business locations or entities?

Each business entity has its own EIN and its own deposit schedule. If you operate as a sole proprietor with multiple locations under one EIN, all locations are combined for the lookback period calculation. If you have separate LLCs or corporations, each has its own schedule based on its own payroll tax liability.

Do I have to use EFTPS to deposit, or can I pay by check?

Federal payroll tax deposits must be made electronically through EFTPS or an approved third-party processor. Checks are not accepted for payroll tax deposits. If you do not have EFTPS set up, you can enroll at eftps.gov or ask your payroll provider to handle deposits on your behalf.

What happens if I deposit late by one day?

A deposit one to five days late incurs a 2% penalty on the unpaid tax amount. For example, if you owed $10,000 and deposited one day late, the penalty would be $200. The penalty is in addition to any interest owed on the late payment. Interest accrues daily from the original due date.

If I move from monthly to semi-weekly, do I owe taxes twice in the transition month?

No. Your schedule changes at the start of a quarter, not mid-month. If your schedule changes on January 1, you deposit semi-weekly for all of January. There is no overlap or double-deposit requirement. However, you must ensure you deposit on the correct days for your pay schedule starting immediately on January 1.