2027 Vermont Tax Deadlines

Last updated: August 5, 2026

Key Vermont tax dates at a glance

• April 15, 2027: First Individual estimated payment.
• June 15, 2027: Second Individual estimated payment.
• September 15, 2027: Third Individual estimated payment.
• January 18, 2028: Fourth Individual estimated payment.
• March 15, 2028: Calendar-year Business Income Tax Form BI-471 return and payment for pass-through entities.
• April 18, 2028: Calendar-year Corporate Income Tax Form CO-411 return and payment.
• April 18, 2028: Calendar-year Individual Form IN-111 return and payment.
• September 15, 2028: Extended BI-471 pass-through return, file only.
• October 16, 2028: Extended CO-411 and IN-111 returns, file only.

When are Vermont taxes due in 2027?

Vermont 2027 calendar-year pass-through Business Income Tax returns are due March 15, 2028. Vermont C Corporation returns are due April 18, 2028, and Individual returns are due April 18, 2028.

When is the Vermont C Corporation return due?

Vermont C Corporations should plan around April 18, 2028, for the calendar-year corporate-facing return, tax, or business-level filing noted in this page.

• Form CO-411: Vermont Corporate Income Tax Return.
• Form CO-411E: Corporate extension payment form when a separate Vermont extension payment is needed.
• File and pay through myVTax.

What are Vermont C Corporation extension rules?

The extended filing deadline for the main calendar-year Vermont corporate-facing return is October 16, 2028. The extension is to file only, and tax or required payments remain due by April 18, 2028.

When are Vermont S Corporation and Partnership returns due?

Vermont S Corporations should plan around March 15, 2028, and Partnerships should plan around March 15, 2028.

Which Vermont pass-through forms are required?

Use the applicable Vermont pass-through return and related payment or owner-reporting forms for the entity type and election facts.

• Form BI-471: Vermont Business Income Tax Return for S Corporations, Partnerships, and qualifying LLCs.
• Form WH-435: Estimated payments made by a business entity for nonresident owners.

What are Vermont pass-through extension rules?

The extended filing deadline for calendar-year Vermont S Corporation and Partnership returns is September 15, 2028. The extension is to file only, so tax, withholding, composite, or entity-level payments should be handled by the original deadline.

When is the Vermont Individual income tax return due?

Calendar-year Vermont Individual income tax returns and payments are due April 18, 2028.

• Form IN-111: Vermont Individual Income Tax Return.
• Vermont estimated income tax payments should be tied to final 2027 rate tables and withholding.

What Vermont Individual rate and residency issues should be checked?

Tax year 2027 Individual instructions should be checked for final rate tables, standard deductions or exemptions, residency rules, retirement-income treatment, credits, estimated-payment thresholds, and any filing-year changes specific to Vermont.

When are Vermont estimated payments due?

Vermont estimated-payment work should coordinate Individual estimated tax, WH-435 owner payments, composite reporting, withholding, and extension payments.

• April 15, 2027: First estimated payment.
• June 15, 2027: Second estimated payment.
• September 15, 2027: Third estimated payment.
• January 18, 2028: Fourth estimated payment.

Who must make Vermont estimated payments?

Taxpayers should use the final 2027 Vermont instructions to confirm estimated-payment thresholds, safe-harbor rules, credits, withholding, pass-through owner treatment, and electronic-payment requirements.

What are Vermont extension deadlines?

Vermont extension deadlines are September 15, 2028, for pass-through filings, October 16, 2028, for corporate-facing filings, and October 16, 2028, for Individual returns. Extensions add filing time only; payment deadlines remain tied to the original return due dates.

What Vermont-specific rules should tax professionals watch for 2027?

Beyond the core return deadlines, Vermont tax professionals should track state-specific rate, credit, local-tax, industry, and filing-method rules before the 2027 season locks.

• Vermont currently uses four Individual income tax rates from 3.35% to 8.75%.
• Final tax-year-2027 inflation-adjusted Individual brackets should be taken from the Department schedule when published.
• The current corporate rate schedule ranges from 6% to 8.5%, subject to the minimum tax tied to Vermont gross receipts.
• Reconcile WH-435 payments and composite reporting to owner returns.
• Confirm the final 2027 bracket thresholds and minimum-tax table when the Department publishes them.

Instead AI helps tax teams treat Vermont due dates as operational work, not a static checklist.

Tax-professional context: Vermont pairs a graduated individual income tax with a graduated corporate income tax and a gross-receipts-based minimum tax, so 2027 planning depends on more than the filing calendar. The state layers targeted credits, electronic-filing expectations through myVTax, and specific retirement-income and pass-through rules that reward review before the season locks.

Electronic filing and myVTax:

• C Corporations and pass-through entities should file and pay through myVTax.
• Individuals can e-file Vermont returns, including free filing options through the state system.
• Professional preparers must use Vermont-approved software vendors.

Vermont credits and unique features:

• Vermont Earned Income Tax Credit for qualifying taxpayers.
• Child and Dependent Care Credit for qualifying families.
• Homestead Declaration affecting property tax liability, filed with the Individual return.

High-income planning considerations:

• Income-timing strategies to manage progression through the graduated brackets.
• Multi-state planning for higher earners and part-year residents.
• Charitable-giving strategies to manage Vermont taxable income.

Retirement income considerations:

• Social Security benefits are generally exempt from Vermont income tax.
• Military retirement pay may qualify for a Vermont exemption.
• Pension and other retirement income should be reviewed for residency and exclusion eligibility.

Business incentives and credits:

• Vermont Employment Growth Incentive (VEGI).
• Downtown and Village Center Tax Credits.
• Historic Rehabilitation Tax Credits.
• Research and Development Tax Credits.
• Vermont Training Program.

Vermont's BI-471 pass-through filing and nonresident WH-435 payments reward specialist review from the accounting firm directory.

What sources support these Vermont dates?

• Vermont corporate income tax.
• Vermont business entity income tax.
• Vermont personal income tax rates.
• Vermont estimated income tax.

Manage Vermont BI-471 and Individual deadlines

Instead's AI-driven tax platform helps Vermont teams coordinate return work, payment review, extensions, and filing follow-through before deadlines move from planning to execution.

For Vermont practices, workflows, integrations, and tax preparers help connect research, planning, and operational handoffs without duplicating deadline data. Built for tax professionals who want source-backed state deadline control across clients, entities, and reviewer workflows.