From the Tax Department:

We have heard that some towns are continuing to tell taxpayers that the deadline for timely filed homestead declarations is April 15, 2020 and that those received after that date will be assessed a penalty by the town. This is not the case. As a function of Vermont law, the change in the federal personal income tax due date automatically moved the due date for the Vermont Homestead Declaration and Property Tax Credit Claim to July 15. The Tax Department will therefore mark all Homestead Declarations received on or before July 15th, 2020 as timely, and the towns cannot charge a late penalty for all filings received up to the July 15th due date.