CO-411: Corporate Income Tax Return (2025)
Vermont · Vermont Department of Taxes · Used for tax years 2025
Form CO-411 is the 2025 Vermont Corporate Income Tax Return. It reports federal taxable income, Vermont adjustments, income allocated and apportioned to Vermont, tax, credits, and payments to determine a balance due or overpayment.
What you'll need
Have your entity name, FEIN, primary six-digit NAICS number, address, and tax-year beginning and ending dates ready.
The return references these documents and records, as applicable:
- Your federal tax return. Form CO-411 uses federal Form 1120, Line 28, for federal taxable income and Line 29b for special deductions.
- Schedule BA-402 for allocation and apportionment amounts.
- A schedule supporting the Vermont net operating loss deduction. Attach it if claiming the deduction on Line 11.
- Schedule BA-404 for credits.
- Payment records for Form CO-414 estimated payments, Form BA-403 extension payments, Schedule K-1VT nonresident estimated payments distributed to this entity, Form RW-171 real estate withholding payments, and any prior-year overpayment applied.
How to file
Complete the return, check the applicable boxes, and have the responsible officer sign and date it. The form also includes a paid preparer signature section.
Mail the return and check to:
Vermont Department of Taxes
133 State Street
Montpelier, VT 05633-1401
Make the check payable to Vermont Department of Taxes.
Common mistakes
- Using cents: Enter all amounts in whole dollars.
- Using too few decimal places for the Vermont percentage: Line 6 requires six places to the right of the decimal point.
- Treating a filing extension as a payment extension: The form says to pay by the due date required under the Internal Revenue Code, even if the return is extended.
- Leaving out the net operating loss schedule: Line 11 says to attach a schedule for the Vermont net operating loss deduction.
- Overlooking untaxed purchases: Line 15 includes use tax for taxable items on which no sales tax was charged, including online purchases.
Questions people ask
Does an extension give me more time to pay?
No. The form says payment is due by the due date required under the Internal Revenue Code, even if the return is extended.
Can I apply an overpayment to the next tax year?
Yes. Enter the amount to apply to the next tax year on Line 22. Line 23 shows the amount to be refunded, calculated as Line 21 minus Line 22.
Does this return include use tax?
Yes. Line 15 is for use tax on taxable items for which no sales tax was charged, including online purchases.
Can I allow the department to discuss my return with my preparer?
Yes. Check the box authorizing the Vermont Department of Taxes to discuss the return with the preparer shown.