Schedule B (Form 941) Generator: report your liability by the day

Schedule B, Report of Tax Liability for Semiweekly Schedule Depositors, is an attachment to Form 941. It breaks your quarterly employment tax down by the day the liability arose, so the IRS can check that each deposit landed on time. It has a grid for all three months of the quarter, a total for each month, and one total for the whole quarter that has to equal line 12 of your Form 941.

You file Schedule B if you're a semiweekly schedule depositor. That's you if you reported more than $50,000 of employment taxes during the lookback period, or if you had $100,000 or more of tax liability on any single day in the current or prior calendar year. Monthly schedule depositors generally don't file it, though a large one-day liability can move you to semiweekly mid-year.

Liability, not deposits. Schedule B shows when your tax was incurred, based on the dates you paid wages, not when you sent money to the IRS. The IRS already gets your deposit data from the electronic funds transfers. Mixing the two up is one of the most common Schedule B errors and can trigger a penalty even when every deposit was made on time.

It comes down to your lookback period, generally the four quarters ending June 30 of the prior year. Add up the employment taxes you reported on Form 941, line 12, across those quarters. More than $50,000 makes you semiweekly for the whole next year; $50,000 or less makes you monthly. Section 11 of Publication 15 spells out the test in full.

For the 2026 calendar year, the lookback period runs from July 1, 2024 through June 30, 2025. If the employment taxes you reported across those four quarters came to more than $50,000, you're a semiweekly depositor for all of 2026 and file Schedule B with each quarter's Form 941. The lookback period always ends on June 30 of the year before the one it sets.

Yes, exactly. Add your three monthly totals to get the total liability for the quarter, and that number has to equal line 12 on Form 941, your total taxes after adjustments and nonrefundable credits. If the two don't match, there's an error in your daily entries or your 941 math, and you should reconcile before filing. Even a small gap can bring an IRS notice.

If your accumulated tax liability reaches $100,000 or more on any single day, you have to deposit it by the next business day. Hitting that threshold also reclassifies you as a semiweekly depositor for the rest of the current year and all of the next one, and you complete Schedule B for the entire quarter in which it happened. The $100,000 is measured before any reduction from credits.

It has no separate deadline. Schedule B is filed with Form 941, so it's due when the 941 is due: the last day of the month after the quarter. For 2026 that's April 30, July 31, November 2 for the third quarter (October 31 is a Saturday), and February 1, 2027 for the fourth. If you deposited all taxes when due for the quarter, you can file by the 10th day of the second month after it.

Yes, in one case. The Schedule B instructions say not to complete it if your Form 941, line 12 tax liability is less than $2,500 for the quarter, as long as you didn't have a $100,000 next-day deposit obligation. It's uncommon for a business large enough to be semiweekly, but a quarter with very little payroll can qualify.

Keep the liabilities in their own quarters. A payday on Wednesday, September 30 goes on the Q3 Schedule B, and a payday on Friday, October 2 goes on the Q4 one, even though both fall in the same Wednesday to Friday deposit period. Publication 15 says to make separate deposits for the separate liabilities when a period spans two quarters.

You always get at least three business days after a semiweekly period closes. If any of those three weekdays is a legal holiday, you get an extra business day for each one. For example, wages paid Friday, September 4, 2026 would normally be deposited by Wednesday, September 9, but Labor Day on September 7 pushes it to Thursday, September 10. The liability still goes on September 4 on Schedule B.

It doesn't mean you deposit twice a week. It means the IRS splits each week into two deposit periods based on your payday. If you pay wages on a Wednesday, Thursday, or Friday, the deposit is due the following Wednesday. If you pay on a Saturday, Sunday, Monday, or Tuesday, it's due the following Friday. You always get at least three business days after the period closes.

Use the March 2024 revision of Schedule B, together with the June 2025 instructions. The form itself hasn't changed since March 2024, so that pairing is still current for 2026 filings, even though some sites advertise a separate "2026 version." Match the schedule to the correct Form 941 for the quarter you're filing so the IRS processes it without delay.

If you were assessed a failure-to-deposit penalty because of a Schedule B error and the fix doesn't change the quarter's total liability, file an amended Schedule B with "Amended" at the top, sent to the address on the penalty notice. With Form 941-X: for a tax decrease, attach an amended Schedule B; for a timely-reported increase, don't file one unless you're addressing an FTD penalty; for a late-reported increase, an amended Schedule B is required.

Yes. When you e-file Form 941 through the IRS Modernized e-File system, Schedule B goes with it, and many payroll platforms include it automatically for semiweekly depositors. You can also paper file, mailing Schedule B together with the 941. Either way it travels with the return rather than on its own, since it's an attachment, not a standalone filing.

Schedule B records daily 941 liability for semiweekly depositors. Form 945-A does the same job for a semiweekly depositor who files an annual return like Form 944 or 945. Schedule R lets an aggregate filer or CPEO allocate one Form 941 across many clients. Schedule D explains differences between the totals on your W-2s and your 941s. Each one attaches to a different return.

Schedule B is where the daily detail behind line 12 lives. You enter your liability on the day each payroll was paid, total each month, and add the three months into the quarter total, which then has to equal line 12 on the 941. If you claim the qualified small business payroll tax credit on line 11, you reduce your daily entries by it so the totals still match. Our Form 941 generator handles the return itself.