One phone call does most of the work

Before the deadline, make one call.

New York is the one state in this corpus where reading the statute does not tell you what you get. The three veterans exemptions are local option, so your county, town, village and school district each decide separately. Which means the useful first action is not a form — it is one call to your assessor, asking three specific questions.

Why this matters right now

A veteran who assumes the exemption does not exist because a neighbour in the next town did not get it, or who assumes March 1 applies when their village set an earlier date, loses a full year. Neither assumption is unreasonable and both are avoidable with one phone call.

What to do

1
Ask: has this jurisdiction adopted the veterans exemption?
Ask separately about the county, the town or city, the village if you are in one, and the school district. They decide independently and they often differ. School tax is usually the largest line on your bill.
2
Ask: at which maximum level?
The statute sets basic maximums of $12,000 for wartime service, $8,000 for combat and $40,000 for disability, and each locality picks its level from a statutory menu. Then it is multiplied by the equalization rate.
3
Ask: what is the taxable status date here?
March 1 in most towns. Cities and villages set their own and some are much earlier. This is the one that costs you a year if you assume. Get form RP-458-a
4
While you are at it — check your income tax return
If you receive a military pension, New York exempts it entirely from state, city and Yonkers income tax with no cap. It is claimed as a subtraction on your return rather than at the assessor, and for most retirees it is worth more than every property exemption combined.

The taxable status date, whatever yours is

March 1 in most towns, earlier in some cities and villages. Miss it and the exemption starts the following year instead — New York has no multi-year late-filing route of the kind some states provide.

See all the dates

This is general information about New York statute, not a government eligibility determination and not legal advice. Your assessor decides your application, and your locality decides whether the exemption is offered at all.