Vermont tax deadlines in 2026: filing dates and estimated payments
Deadlines that fall in calendar 2026: the 2025 return and the 2026 estimated payments. Different year? See Vermont 2025 →
Vermont deadlines in 2026
| 2025 individual return due | April 15, 2026 |
|---|---|
| Extended filing deadline | October 15, 2026 |
| Payment due | April 15, 2026, extension or not |
| Final 2025 estimated payment | January 15, 2026 |
| 2026 estimated payments | April 15, 2026 · June 15, 2026 · September 15, 2026 · January 15, 2027 |
Conforms to the federal deadline.
Vermont estimated tax payments in 2026
Generally you must pay estimated income tax if you expect to owe an income tax liability or have income not subject to withholding (e.g., self-employment); no penalty or interest applies if the tax liability due is less than $500.
| Q1 (2026 tax year) | April 15, 2026 |
|---|---|
| Q2 (2026 tax year) | June 15, 2026 |
| Q3 (2026 tax year) | September 15, 2026 |
| Q4 (2026 tax year) | January 15, 2027 |
| Voucher | Form IN-114, Individual Income Estimated Tax Payment Voucher |
| Underpayment safe harbor | To avoid underpayment penalty and interest, estimated payments must be either 100% of last year's tax liability or 90% of this year's tax liability; no penalty if the tax liability due is less than $500. |
| Pay online | myvtax.vermont.gov |
Individuals receiving two-thirds of their income from farming or fishing are not required to make estimated payments. Self-employment income earned in Vermont must include the 0.11% Child Care Contribution in each estimated payment.
Source: tax.vermont.gov, read September 3, 2026. “1st payment April 15, 2026 2nd payment June 15, 2026 3rd payment September 15, 2026 4th payment January 15, 2027”
All 51 jurisdictions in one table: state estimated tax payment dates for 2026.
Vermont extensions
Every state's rule in one table: which states accept the federal extension in 2026.
| Does Vermont accept the federal extension? | Yes. A federal extension is honored; no state form. |
|---|---|
| State extension form | Form IN-151 |
| Original due date | April 15, 2026 |
| Extended due date | October 15, 2026 |
| Payment | Still due April 15, 2026. The extension is to file, not to pay. The extension does not extend the time to pay; any tax due must be paid by the April deadline. |
| How to get it | With a federal extension no separate Vermont request is needed unless you are making an extension payment, in which case file Form IN-151 with payment (or use myVTax) by April 15. |
Form IN-151 is filed only if you are not filing a federal extension or you are making an extension payment.
Source: tax.vermont.gov, read September 3, 2026. “Vermont allows an automatic extension of the income tax filing deadline for both individual and corporate taxpayers upon extension at the federal level”
Federal deadlines in 2026
| 2025 Form 1040 | April 15, 2026 · extension October 15, 2026 |
|---|---|
| 2025 S-corp (1120-S) & partnership (1065) | March 16, 2026 |
| 2025 C-corp (Form 1120) | April 15, 2026 |
| 2026 federal estimated payments (1040-ES) | April 15, 2026 · June 15, 2026 · September 15, 2026 · January 15, 2027 |
Source: IRS Publication 509 and Form 1040-ES instructions, irs.gov.
Frequently asked questions
When are Vermont state taxes due in 2026?
Your 2025 Vermont individual income tax return is due April 15, 2026. If that date falls on a weekend or legal holiday, the deadline moves to the next business day. An extension moves the filing deadline to October 15, 2026, but any tax owed is still due on the original date.
When are Vermont estimated tax payments due in 2026?
Vermont estimated payments for the 2026 tax year are due April 15, 2026, June 15, 2026, September 15, 2026, January 15, 2027. Use Form IN-114, Individual Income Estimated Tax Payment Voucher or pay online. The final installment for 2025 was due January 15, 2026.
Does Vermont accept the federal extension?
Yes. A federal extension is honored; no state form. The state form is Form IN-151. The extended filing deadline is October 15, 2026, and tax is still due by April 15, 2026.
Does a Vermont extension give me more time to pay?
No. An extension extends the time to file, not to pay. To avoid penalties and interest, pay what you expect to owe by April 15, 2026.
Dates are the statutory deadlines that fall in 2026 and move to the next business day when they land on a weekend or holiday. Each section links to the source it was checked against. Always confirm with the Vermont tax agency or the IRS before relying on a date. This is general information, not tax advice.