STAR after buying a Long Island house — your tax bill just went up

Buyers consistently get caught off-guard by this. The seller had STAR. The day you close, it disappears. Your first property tax bill arrives ~$300-$1,500/yr higher than what showed up in the listing. Here's how to get yours back fast.

The trap: Zillow, Redfin, and listing sites typically show the seller's tax bill — which often includes their STAR exemption (and sometimes Senior + Veteran exemptions too). The bill you'll actually pay can be $1,000-$3,000/yr higher in your first year if you don't register STAR immediately.

What happens at closing, exactly

STAR is tied to ownership + primary-residence status. The day title transfers, the seller's STAR exemption is removed from the property tax roll. If your closing happens between assessment cycles, the change usually reflects on your first full school tax bill (October in Suffolk, December in Nassau).

You're not retroactively charged — you just don't get the seller's STAR. You have to register for your own.

The same applies to other exemptions the seller may have had: Senior Citizens, Enhanced STAR, Alternative Veterans, Volunteer Firefighter. Every one of these is owner-specific and disappears at closing.

When to register STAR — timing matters

The faster you register, the less you pay out of pocket. NY State accepts STAR Credit registrations year-round at tax.ny.gov/star.

  • If you close before March 1: Register immediately. Your first full year bill will reflect your STAR credit.
  • If you close after March 1 but before the next school tax bill: Register immediately. You'll receive a partial-year STAR credit check.
  • If you close mid-year: Register the day after closing. NY State will pro-rate your credit for the months you owned the home.

There is no filing fee. Registration takes 10-15 minutes online.

What new LI buyers should do in their first 30 days

Common buyer questions

My listing showed $9,000/yr in taxes. Why is my actual bill $12,500?

Almost certainly because the seller had STAR (and possibly Senior or Veteran exemptions). Once those drop off at closing, the bill is the full amount until you register your own STAR. Use our buyer calculator to see your projected post-sale bill.

Can I get the seller's STAR transferred?

No. STAR is non-transferable. Each owner registers their own. The good news: you only have to do it once.

What if I bought a co-op or condo?

Same rules apply. Register at tax.ny.gov/star. For co-ops, the credit flows through the corporation; for condos, you receive it directly.

I bought 6 months ago and never registered. Did I miss it?

No. Register now and you'll start receiving the credit for the next school tax year. You won't get back-credits for the months you weren't registered.

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Related

Buyer property tax calculatorSee your projected post-sale bill Property tax after closingFull explanation of what changes STAR exemption main guideEligibility and savings Tax grievance guideLower your assessment year over year

Sources & citations

Last verified: 2026-05-11. Tax rules change; we re-verify each page quarterly.

Estimates and educational content only — not legal, tax, or financial advice. Verify with your county or town receiver, an attorney, or a CPA before making financial decisions.