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2025›Instructions for Form 1120-S›General Instructions

Electronic Deposit Requirement

Instruction 1120-S — Instructions for Form 1120-S, U.S. Income Tax Return for an S Corporation · 2026-10-03 edition · updated 2026-10-04 · United States

Corporations must use electronic funds transfers (EFT) to make all federal tax deposits (such as deposits of employment, excise, and corporate income tax). An EFT can be made using the Electronic Federal Tax Payment System (EFTPS) or the corporation’s IRS business tax account. However, if the corporation doesn’t want to use one of these methods, it can arrange for its tax professional, financial institution, payroll service, or other trusted third party to make deposits on its behalf. Also, it may arrange for its financial institution to submit a same-day wire payment (discussed below) on its behalf. EFTPS is a free service provided by the Department of the Treasury. Payments made using the corporation’s IRS business tax account are also free. Services provided by a tax professional, financial institution, payroll service, or other third party may have a fee.

To get more information about EFTPS or to enroll in EFTPS, visit www.EFTPS.gov or call 800-555-4477. To contact EFTPS using the Telecommunications Relay Services (TRS), for people who are deaf, hard of hearing, or have a speech disability, dial 711 and provide the TRS assistant the 800-555-4477 number above or 800-733-4829.

For more information about making an EFT through the corporation’s IRS business tax account, go to IRS.gov/ BusinessAccount .

Depositing on time. EFTPS accepts same day payments of $1 million or less if the payment is submitted before 3:00 p.m. Eastern time on a business day. If the corporation’s payment is more than $1 million, the corporation must submit the deposit by 8:00 p.m. Eastern time the day before the date the deposit is due. If the corporation uses a third party to make deposits on its behalf, they may have different cutoff times.

Same-day wire payment option. If the corporation fails to submit a timely deposit transaction on EFTPS, it can still make its deposit on time by using the Federal Tax Collection Service (FTCS). To use the same-day wire payment method, the corporation will need to make arrangements with its financial institution ahead of time regarding availability, deadlines, and costs. Financial institutions may charge a fee for payment made this way. To learn more about the information the corporation will need to provide to its financial institution to make a same-day wire payment, go to IRS.gov/SameDayWire .

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▸Contents — Instruction 1120-S — Instructions for Form 1120-S, U.S. Income Tax Return for an S Corporation

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