Vermont (VT)
April 15, 2026
October 15, 2026
⚠ Conditional (IN-151)
VT — VermontVermont Personal Income Tax Extension — What You Need to Do
If you owe no Vermont tax and already have a federal extension (Form 4868), your Vermont filing deadline is extended automatically — no separate form needed. But if you owe any Vermont tax, or don’t have a federal extension, you must file Form IN-151 by April 15, 2026 along with your payment.
Vermont Extension Checklist — 2026
Whether you need Form IN-151 depends on whether you owe Vermont tax — but any balance due is due April 15 regardless.
April 15, 2026
File IN-151 If You Owe Tax
File & Pay Online via myVTax
myvtax.vermont.gov
You can request the extension and pay in one step online — no paper IN-151 required if filed this way.
Check with Form IN-151 Vermont Department of Taxes
PO Box 1779
Montpelier, VT 05601-1779
An extension doesn’t extend the time to pay — interest and penalty accrue on any unpaid balance.
October 15, 2026
File Federal + Vermont Return
File your federal return now and add your Vermont state return — Form IN-111 — in the same session.
Secure eFile · Step-by-step guidance · 24/7 support
Vermont Late Filing & Payment Penalties — What It Costs to Wait
Vermont charges separate penalties for late filing and late payment, plus daily interest on any unpaid balance from April 16 onward.
| Charge Type | Rate | Cap | Trigger |
|---|---|---|---|
| Late-Filing Penalty | 5% per month (or part-month) | 25% (min. $50 if not filed within 60 days) | Return filed after October 15, 2026, or without a valid extension |
| Late-Payment Penalty | 1% per month (or part-month) | 25% of tax due | VT tax not paid by April 15, 2026 |
| Interest | 7.75% per year (2026 rate) | No cap | Accrues from April 16 on any unpaid balance |
Vermont State Extension Details
| Extension Type | Conditional — Form IN-151 Required Unless $0 Owed w/ Federal Extension |
| Original Deadline | April 15, 2026 |
| Extended Deadline | October 15, 2026 |
| Extension Period | 6 months |
| Extension Form | Form IN-151 — required if you owe VT tax or lack a federal extension |
| Return Form | Form IN-111 |
| Federal Extension Required? | Only exempts you from filing IN-151 if you also owe $0 Vermont tax |
| Payment Deadline | Any Vermont tax due must be paid by April 15, 2026 regardless of extension |
| Online Payment Portal | myVTax |
| Extension/IN-151 Mailing Address | Vermont Department of Taxes, PO Box 1779, Montpelier, VT 05601-1779 |
| Return Mailing Address (refund/zero due) | Vermont Department of Taxes, PO Box 1881, Montpelier, VT 05601-1881 |
| State Agency | Vermont Department of Taxes |
| Late-Filing / Late-Payment Penalty & Interest | 5%/month late-filing (cap 25%); 1%/month late-payment (cap 25%); 7.75% annual interest |
Vermont Tax Extension — Frequently Asked Questions
Do I need to file Form IN-151?
Only if you owe Vermont tax or don’t have a federal extension. If you have a federal extension and owe $0 Vermont tax, your Vermont deadline is automatically extended with no separate form.
Does the extension give me more time to pay?
No. The extension only avoids the late-filing penalty. Any tax due must still be paid by April 15, 2026, or interest and a late-payment penalty apply to the unpaid balance.
Is there a minimum-payment percentage to keep the extension valid?
No. Unlike some states, Vermont doesn’t tie the extension’s validity to a specific percentage paid — filing IN-151 (or qualifying for the federal-extension exception) secures the filing extension regardless of how much you’ve paid.
Does the extension cover my Homestead Declaration?
No. Form HS-122 (Homestead Declaration / Property Tax Credit Claim) is still due April 15 regardless of an income tax extension — late filing can trigger a separate town-assessed penalty of up to 8%.
Which Vermont return form do I need?
Form IN-111, the Vermont Income Tax Return, for both residents and nonresidents.
Where do I mail my return versus my extension payment?
Anything with a payment enclosed (including IN-151) goes to PO Box 1779. Refund or zero-due returns go to PO Box 1881 — both in Montpelier, VT.
Ready to File? Start Federal + Vermont
File your federal return and add Vermont state in the same session. October 15 filing deadline — secure, fast, with live support.