Vermont State Tax Guide
Click your state on the map to see filing deadlines, extension rules, refund tracking, and payment options for that state. States shown in gray are coming soon.
Hover or tab a state to see its name.
Vermont State Tax Guide
Vermont Key deadlines (tax year 2025, return filed in 2026)
- Filing deadline: Apr 15, 2026
- Extension request deadline: Apr 15, 2026
- Extended return deadline: Oct 15, 2026 (6-month extension)
- Payment deadline: Apr 15, 2026
- Differs from federal: No
You must file a Vermont extension and pay the estimated tax due by the April deadline to avoid late-payment penalties.
If the due date for filing your return falls on a. Saturday, Sunday, or legal holiday, your return is due by the next regular working day.
October 15, 2026 (6-month extension)
Relevant Links
Payment rules
You must file a Vermont extension and pay the estimated tax due by the April deadline to avoid late-payment penalties.
Payment options
Payment plan availability
Available: Yes
Vermont tax payment plans are determined on a case-by-case basis. To request an installment agreement, call the payment options line directly at (802) 828-2518 (Monday–Friday, 7:45 a.m. to 4:30 p.m. EST).
Filing forms
Regular filing
- IRS Form 4868
- Form IN-111
Extension
- Form IN-151 - Application for Extension of Time to File Form IN-111 · Download form
Vermont Refund Tracking
Do I need to file?
If you filed a federal extension (IRS Form 4868) and expect a Vermont refund, you do not need to file a separate Vermont extension form. It is granted automatically. If you OWE taxes: You must file a Vermont extension and pay the estimated tax due by the April deadline to avoid late-payment penalties.
Filing methods
Online filing
Online (Fastest): Go to the Vermont Department of Taxes portal and select "File an Extension." You can pay via a fee-free ACH debit transfer.
Mail filing
By Mail: Complete Form IN-151 (Application for Extension of Time to File Form IN-111) and mail it with a check to the Vermont Department of Taxes.
