Does Form 7004 Extend the Time to Pay? No.

What you owe, and when

The balance on line 8 of Form 7004 (your tentative tax minus payments and credits) is due by the original due date of the return. For calendar-year 2026 returns, that's March 15, 2027 for partnerships and S corporations and April 15, 2027 for C corporations, trusts and estates.

Estimating line 6

The IRS grants the extension only if you make a proper estimate of the tax. Enter the total tax you expect, including nonrefundable credits, using your return's instructions. If you expect none, enter -0-. Partnerships generally don't pay income tax at the entity level, and S corporations usually owe little or none, but check your return's instructions.

How to pay

• EFTPS. Most entities must use electronic funds transfer for federal tax deposits, generally through EFTPS (EFTPS.gov).
• IRS Direct Pay. Partnerships (Form 1065) and corporations (Form 1120) can make an extension payment for the current year from a bank account, with no sign-in. It can't pay more than $10 million at once; use EFTPS for that. Payment types Direct Pay accepts.
• IRS business tax account. Corporations can also make an electronic payment through the corporation's IRS business tax account.
• Electronic funds withdrawal. If you e-file Form 7004, you can pay from a bank account in the same step (Form 8878-A).
• Someone else. A tax professional, bank, payroll service or other trusted third party can make the deposit for you.

See all options at IRS.gov/Pay.

What paying late costs

• Late-payment penalty: generally 1/2 of 1% of the unpaid tax for each month or part of a month, up to 25%.
• Interest: charged from the original due date until you pay, even with an extension.

Example: $10,000 unpaid for 3 months is roughly $150 in late-payment penalty (1/2 of 1% x 3), plus interest. Your actual amounts depend on IRS rates and dates.

The 90% rule for corporations

A corporation with an extension isn't charged the late-payment penalty if two things are true: the tax on Part II, line 6 (or the tax paid by the regular due date) is at least 90% of the tax on its return, and the rest is paid by the extended due date. Interest still runs on the unpaid part.

Trusts and REMICs

A trust (Form 1041) or REMIC (Form 1066) is granted the extension even if it can't pay the full balance. It should pay as much as it can to limit penalties and interest.

Corporations expecting an NOL carryback

A corporation that expects a net operating loss carryback can deposit less, by the overpayment the carryback creates. Two conditions: all other prior-year tax has been paid, and Form 1138 is filed with Form 7004. When you e-file, Form 1138 is sent separately.

If you can't pay in full

File Form 7004 anyway, and pay as much as you can by the due date. Filing on time avoids the late-filing penalty, which is usually larger than the late-payment penalty. See IRS payment options.