Vermont Filing Due Date: Business tax returns are due by March 15 — or by the 15th day of the 3rd month following the end of the taxable year (for fiscal year filers).
Extended Deadline with Vermont Tax Extension: Vermont offers a 30-day extension beyond the Federal extension deadline. For instance, a Federal tax extension (IRS Form 7004) gives a corporation 6 more months to file, which extends its Federal filing deadline to September 15 (for calendar year filers). A Vermont tax extension will add 30 days on top of the Federal extension, which means the corporation has until October 15 to file its Vermont return.
Vermont Tax Extension Form: To apply for a Vermont extension, file Form BA-403 by the original deadline of your return.
Vermont Extension Payment Requirement: An extension of time to file is not an extension of time to pay. If you owe Vermont tax, it must be paid by the original due date, or interest and penalties will apply. You can include a Vermont extension payment with Form BA-403.