This is the section that surprises Island buyers, so let's be precise and let's be honest. Crossing into New Jersey, your property-tax bill goes up. Sometimes a lot.
Staten Island's effective property-tax rate sits around 0.85% of market value, and New York City caps how fast a one- to three-family assessment can rise—6% in a year, 20% over five years. New Jersey funds its schools almost entirely through property tax, and in 2024 the statewide average bill crossed $10,000 for the first time, the highest in the country.
In Sayreville, a typical single-family home runs roughly $9,000–$12,000 a year, depending on assessment. A comparable family on Staten Island might pay closer to $4,000–$5,000. Same household, different side of the bridge—plan on your tax line roughly doubling.
So why do people still cross? Because the house is the trade. The money that buys a semi-attached home on the Island buys a detached one with land here. You're not moving to Sayreville for a lower tax bill—you're moving for more home, and you build the higher tax into the plan with eyes open.
The honest move: before you fall for a specific house, get its real tax figure and—if it's anywhere near the water—a real flood-insurance quote. Those two numbers decide whether the monthly actually works. It's exactly what I run before you ever write an offer.