Rent or Buy on Long Island in 2026: A Seven-Step Way to Run the Numbers
When the 30-year fixed mortgage rate climbed to 7.28% on October 1, 2026, up from 7.03% a week earlier and 6.34% a year ago, according to Freddie Mac, the monthly math on a typical Suffolk County purchase moved with it. A buyer putting 20 percent down on the county’s $760,000 median single-family price would owe about $4,160 a month in principal and interest, roughly $381 more than the same loan would have cost at last year’s rate.
Whether that tips a household toward renting or buying depends on figures no county median can supply, which is why this guide works as a sequence of seven steps, each with a published benchmark and room for a household’s own numbers. The benchmarks come from Freddie Mac, OneKey MLS, the Census Bureau, New York State tax records and HUD-based rent data, and every calculation is shown so it can be rerun with different inputs.
The arithmetic describes costs. It does not recommend a choice, and it leaves out considerations that no spreadsheet captures, such as job stability and how long a household expects to stay. This is for informational purposes only; consult a licensed attorney or financial advisor for your specific situation.
The numbers at a glance
| Measure | Suffolk County | Nassau County |
|---|---|---|
| Median single-family sale price, August 2026 (OneKey MLS) | $760,000 | $911,000 |
| Median gross rent, 2020-2024 (Census) | $2,255 | $2,252 |
| Principal and interest at 7.28%, 20% down, 30-year fixed | $4,160 | $4,987 |
| Mortgage recording tax on that loan | $6,354 | $7,622 |
| Price-to-rent ratio | 28.1 | 33.7 |
The payment, tax and ratio rows are calculations from the sourced inputs shown in each step, not published statistics. The sale prices and the rents come from different periods, which Steps 1 and 6 address.
Step 1: Pin down the rent
Start with the rent actually being paid or the quote in hand for a comparable home, because every later comparison hangs on it. For orientation, the Census Bureau’s 2020-2024 American Community Survey puts the median gross rent at $2,255 in Suffolk County and $2,252 in Nassau County. HUD’s Fair Market Rent for a two-bedroom unit in the combined Nassau-Suffolk area was $2,586 in fiscal year 2025, according to the figures published at rentdata.org; fiscal year 2026 figures could not be retrieved.
Those benchmarks carry a limit. The Census numbers average five survey years and cover every rental unit, so current asking rents for a specific kind of home can sit higher or lower. At $2,255 a month, annual rent comes to $27,060, a figure that returns in Step 6.
Step 2: Choose a purchase price
The price should reflect the home that would realistically be bought, not an average. As a reference point, OneKey MLS reported in a September 22, 2026 release titled “Prices Rise as Summer Market Shows Signs of Balance” that August 2026 single-family medians reached $911,000 in Nassau County, up 4.7% from a year earlier, and $760,000 in Suffolk County, up 7.0%.
The Census Bureau publishes a different measure that should not be confused with sale prices. Its 2020-2024 median value of owner-occupied homes is $578,400 in Suffolk County and $684,700 in Nassau County, drawn from owners’ own estimates across all property types, including condominiums. The gap against current sale medians reflects different measures and different years, not a data error. Condominium and co-op buyers face additional questions, such as monthly building charges, that a single-family median does not address.
Step 3: Calculate the loan payment at today’s rate
With a price chosen, the principal-and-interest payment follows from the loan amount, the rate and the term. The example below assumes 20 percent down and a 30-year fixed loan, which leaves a $608,000 loan on the Suffolk median and a $728,800 loan on the Nassau median. The three rates are Freddie Mac weekly national averages, not quotes for any particular borrower.
| 30-year fixed rate | Suffolk ($608,000 loan) | Nassau ($728,800 loan) |
|---|---|---|
| 6.34% (average a year before Oct. 1, 2026) | $3,779 | $4,530 |
| 7.03% (average the prior week) | $4,057 | $4,863 |
| 7.28% (average as of Oct. 1, 2026) | $4,160 | $4,987 |
The Suffolk payment at 7.28% is $381 a month, or about $4,569 a year, above what the same loan cost at last year’s average, and it is roughly 1.8 times the county’s median gross rent before a dollar of taxes or insurance is added. Schwab Network’s post on X from October 2, 2025 reported that the average 30-year fixed rate “rose to 6.34% as of Thursday”, which shows where rates stood twelve months earlier.
For a smaller down payment, the loan grows and the lender may attach mortgage insurance, a cost worth asking about directly. The range of loan types open to first-time buyers is laid out in Beyond the 30-Year Fixed.
Step 4: Add the monthly costs the loan payment leaves out
Principal and interest is only the first line of an ownership budget. Property taxes, homeowners insurance, upkeep and any condominium or association charges all arrive on top, and each varies by property in ways a median cannot capture. The tax line on a listing sheet is the starting point, and How Property Taxes Work in Suffolk County explains how to read it. Insurance deserves a quote before an offer is made, as The Insurance Quote Comes Before the Offer lays out, and the reasons premiums keep rising apply even away from the flood zone.
The Census Bureau offers a rough calibration. Its 2020-2024 median selected monthly owner costs for homeowners with a mortgage, a measure that covers more than the loan payment, were $3,320 in Suffolk County and $3,795 in Nassau County. Those medians reflect owners who bought across many years, many at lower rates than today’s, so they describe the existing owner population and not a new buyer. Still, principal and interest alone on the Suffolk median at 7.28% ($4,160) already exceeds the Suffolk median for total owner costs.
Step 5: Add the one-time costs
Buying requires cash before the first payment is due. The down payment is the largest piece: 20 percent of the Suffolk median is $152,000, 10 percent is $76,000 and 5 percent is $38,000, while 20 percent of the Nassau median is $182,200.
New York also taxes the mortgage itself. Both Nassau and Suffolk counties charge a mortgage recording tax of 1.05% of the loan, according to the New York State Department of Taxation and Finance, and the Suffolk County Clerk notes that the borrower pays it at recording and that a $30 deduction may apply to one- and two-family homes. On the $608,000 Suffolk example, that is $6,354; on the $728,800 Nassau example, $7,622. Title work, attorney fees, lender charges and prepaid items come in addition, and What Closing Costs Actually Look Like on Long Island covers the full list.
Step 6: Check the price-to-rent ratio
The price-to-rent ratio compresses the whole comparison into one number: the purchase price divided by a year of rent. On the figures above, the Suffolk ratio is $760,000 divided by $27,060, or 28.1, and the Nassau ratio is $911,000 divided by $27,024, or 33.7.
The Motley Fool describes the ratio as a way to judge whether buying or renting is cheaper in a given place and states that “a price-to-rent ratio under 15 suggests buying is more feasible than renting”. By that yardstick, both counties sit well above the buying range, with a caveat that matters here: the inputs come from different years, since sale prices are from August 2026 and rents average 2020-2024. A current rent for a comparable home would likely change the result, and the ratio ignores taxes, appreciation and the equity a mortgage builds.
Step 7: Set a time horizon and test the downside
Time is the variable that most changes the outcome, because the costs of buying are front-loaded while the benefits accumulate slowly. On the Suffolk example at 7.28%, a first-year payment total of about $49,920 includes roughly $44,070 of interest and only about $5,850 of principal. After five years, $34,000 of the $608,000 has been repaid, leaving a balance near $574,000; at last year’s 6.34% rate, the same five years would have repaid about $39,900.
Against that slow start sit the one-time costs from Step 5, and eventually the costs of selling, which The Hidden Costs of Selling Your Home breaks down. Price movement is the wild card. OneKey’s August 2026 figures show the past year’s direction, with Suffolk medians up 7.0% and Nassau up 4.7%. Those are observations about last year, not forecasts. For scale, each 1% change in a $760,000 price is $7,600.
A practical stress test asks three questions: what happens to the budget if rates are higher at purchase than expected, how many years the household would need to stay for the up-front costs to be recovered, and what a 5% lower sale price would do to the exit. Households relocating from elsewhere can add the regional picture from the complete guide to relocating to Long Island.
Frequently asked questions
Is it cheaper to rent or buy on Long Island right now?
On the benchmark figures here, the principal-and-interest payment alone on a median-priced Suffolk home at 7.28% is about 1.8 times the county’s median gross rent. Taxes, insurance and upkeep widen the gap, while equity, appreciation and tax treatment narrow it, so the answer depends on the specific home, rent and time horizon.
How much down payment is needed to buy?
Twenty percent of the August 2026 Suffolk median is $152,000, and smaller down payments are possible with different loan types and added costs. A lender can explain the options and any mortgage insurance that applies.
How much does the mortgage rate change the monthly payment?
On a $608,000 loan, the payment at 7.28% is about $381 a month higher than at 6.34%, which was the average a year earlier.
What is the mortgage recording tax?
It is a New York tax on the mortgage amount, set at 1.05% in both Nassau and Suffolk counties, and the borrower pays it when the mortgage is recorded.
Rates, prices and tax rules change, and the figures here reflect public sources reviewed on October 2, 2026. Each should be confirmed with its source before a decision is made. Rent and sale data cover different periods and are not a forecast. This is for informational purposes only. Consult a licensed attorney or financial advisor for your specific situation.
You Might Also Like
- Beyond the 30-Year Fixed: Mortgage Options First-Time Buyers on Long Island Rarely Hear About
- What Closing Costs Actually Look Like on Long Island
- How Property Taxes Work in Suffolk County: What Buyers Need to Budget Before They Close
- Long Island Property Taxes Explained for NYC Buyers
- Relocating to Long Island from NYC: The Complete Guide for 2026
Real estate markets change. For current listings and market data, contact Maison Pawli at maisonpawli.com/about/.
Sources
- Freddie Mac: Primary Mortgage Market Survey, weekly rates as of October 1, 2026
- OneKey MLS: Footprint Round-Up, Prices Rise as Summer Market Shows Signs of Balance (September 22, 2026)
- U.S. Census Bureau QuickFacts: Suffolk County, New York (2020-2024)
- U.S. Census Bureau QuickFacts: Nassau County, New York (2020-2024)
- Rentdata.org: FY2025 Fair Market Rent, Nassau-Suffolk HUD Metro FMR Area
- Suffolk County Clerk: Mortgage Tax
- New York State Department of Taxation and Finance: Mortgage Recording Tax Memorandum
- The Motley Fool: Price-to-Rent Ratio
- Schwab Network on X: Freddie Mac 30-year average, October 2, 2025
