Nassau County Mortgage Calculator
On the Nassau County median home price of $659,000, a 20%-down, 30-year loan at today's 6.47% rate runs about $4,297/month — $3,322 principal & interest, $835 property tax at Nassau County's 1.52% effective rate, and $140 homeowners insurance. That is about $121/month more than the New York state-average tax rate would cost on the same home. Enter your own price and down payment below.
$4,297 /mo
P&I: $3,322 · Tax: $835 · Insurance: $140
Loan amount: $527,200 · Total interest: $668,672
Yearly amortization schedule
| Year | Interest | Principal | PMI | Balance |
|---|---|---|---|---|
| 1 | $33,936 | $5,926 | — | $521,274 |
| 2 | $33,541 | $6,321 | — | $514,952 |
| 3 | $33,120 | $6,743 | — | $508,210 |
| 4 | $32,670 | $7,192 | — | $501,018 |
| 5 | $32,191 | $7,671 | — | $493,346 |
| 6 | $31,680 | $8,183 | — | $485,164 |
| 7 | $31,134 | $8,728 | — | $476,436 |
| 8 | $30,553 | $9,310 | — | $467,126 |
| 9 | $29,932 | $9,930 | — | $457,195 |
| 10 | $29,270 | $10,592 | — | $446,603 |
| 11 | $28,564 | $11,298 | — | $435,305 |
| 12 | $27,811 | $12,051 | — | $423,253 |
| 13 | $27,008 | $12,855 | — | $410,398 |
| 14 | $26,151 | $13,712 | — | $396,687 |
| 15 | $25,237 | $14,625 | — | $382,061 |
| 16 | $24,262 | $15,600 | — | $366,461 |
| 17 | $23,222 | $16,640 | — | $349,821 |
| 18 | $22,113 | $17,749 | — | $332,072 |
| 19 | $20,930 | $18,932 | — | $313,140 |
| 20 | $19,668 | $20,194 | — | $292,946 |
| 21 | $18,322 | $21,540 | — | $271,405 |
| 22 | $16,887 | $22,976 | — | $248,430 |
| 23 | $15,355 | $24,507 | — | $223,922 |
| 24 | $13,722 | $26,141 | — | $197,781 |
| 25 | $11,979 | $27,883 | — | $169,898 |
| 26 | $10,121 | $29,742 | — | $140,157 |
| 27 | $8,138 | $31,724 | — | $108,433 |
| 28 | $6,024 | $33,839 | — | $74,594 |
| 29 | $3,768 | $36,094 | — | $38,500 |
| 30 | $1,363 | $38,500 | — | $0 |
Rates: Freddie Mac PMMS (wk 2026-06-18). Property tax: Tax Foundation. Insurance: Insurance.com. PMI applies when your down payment is under 20% (LTV > 80%). You can request cancellation at 80% LTV; the servicer must auto-terminate it at 78% (Homeowners Protection Act). How we calculate →
Monthly payment breakdown for a Nassau County home
At the Nassau County median home price of $659,000, a conventional 30-year loan at 6.47% with 20% down splits into: $3,322 principal & interest, $835 property tax, and $140 homeowners insurance — a total PITI of $4,297/month.
The property tax line uses Nassau County's real effective rate of 1.52% (median tax bill of $10,001 on a median home value of $658,700, US Census ACS), not a generic national average — so this figure reflects what Nassau County actually charges, before any local exemption.
Nassau County vs the New York state average property tax rate
Nassau County's 1.52% effective property tax rate is above New York's 1.3% state average. On the same $659,000 home, that difference works out to $121/month more in the tax line of the mortgage payment compared with paying the New York average rate instead of Nassau County's.
Property tax is set locally — by the county, city and school district — so the state average is only a rough guide. Two otherwise identical New York homes in different counties can carry meaningfully different monthly payments purely because of where the tax rate lands.
What the Nassau County median buys vs a $400,000 national budget
A $400,000 home taxed at Nassau County's 1.52% rate and insured at New York's average would run about $2,663/month — $1,634 less than the Nassau County county median payment of $4,297/month, since Nassau County's median home price ($659,000) is $259,000 above the $400,000 reference used elsewhere on this site.
In other words, price — not tax rate — usually drives the biggest gap between a Nassau County payment and a generic national estimate. Use the calculator above to swap in your own target price.
PMI in Nassau County if you put down less than 20%
Putting 10% down instead of 20% on the same $659,000 Nassau County home adds private mortgage insurance (PMI) of about $395/month, bringing the total payment to roughly $5,107/month instead of $4,297. PMI is required on conventional loans below 20% down and cancels automatically once your loan balance reaches 78% of the original price.
Nassau County mortgage — frequently asked questions
How much is a mortgage payment in Nassau County?
On the Nassau County median home price of $659,000, a 20%-down 30-year loan at 6.47% runs about $4,297/month total (principal, interest, property tax and insurance).
What is the property tax on the median home in Nassau County?
Nassau County's effective property tax rate is 1.52%, which works out to about $835/month ($10,017/year) on the $659,000 county median home value.
How does Nassau County property tax compare to the rest of New York?
Nassau County's 1.52% effective rate is above the New York state average of 1.3%, a difference of about $121/month on a $659,000 home.
What income do I need to afford a home in Nassau County?
Using the common 28%-of-gross-income guideline against the $4,297/month PITI payment on the Nassau County median home, that implies a gross annual income of roughly $184,151.
How much does PMI cost in Nassau County with less than 20% down?
Putting 10% down on the $659,000 Nassau County median home adds about $395/month in PMI, for a total payment near $5,107/month instead of $4,297.
What's included in a Nassau County mortgage payment?
PITI: principal and interest together $3,322, property tax $835 at Nassau County's 1.52% rate, and homeowners insurance $140 at the New York state average — no HOA dues assumed unless you add them above.
More New York counties in this pilot
New York mortgage calculator · Nassau County property tax deep-dive — the full county-by-county property tax breakdown behind this payment estimate.
Mortgage calculators in other pilot counties
Researched & verified by the Calcuris Data & Research Team. How we build and check our tools →