How Much Cash Do You Need to Buy a Home Near Princeton, NJ?
The down payment is only the first number. Closing costs, a tax and insurance cushion, inspections and a reserve for the first months all have to come out of the same savings. Here is each piece, what it typically runs around Princeton, and a worked table at four price points. Where a figure is a range, I say so.
Data note: HOA figures below come from BrightMLS closed sales in the seven school districts of the core market (West Windsor-Plainsboro shown together, then split) over the 12 months from October 1, 2025 through September 30, 2026, one window for every sales figure on this page. Property tax rates are the New Jersey Division of Taxation's 2025 effective rates, the same ones used in our property tax guide. Everything else is a planning range, not a quote.
Down payment by loan type
The minimums are lower than most buyers assume, and the realistic amount is higher. Published program minimums are 3.5 percent for an FHA loan (with a credit score of 580 or above) and 3 percent for Fannie Mae HomeReady or Freddie Mac Home Possible conventional loans, which generally want a score of 620 or above. Putting down less than 20 percent on a conventional loan means private mortgage insurance, and FHA adds an upfront insurance premium of 1.75 percent of the loan, usually financed into the balance.
Loan size matters more than program here. The 2026 baseline conforming loan limit is $832,750, and FHA limits are lower. Above the conforming limit you are in jumbo territory, where lenders commonly ask for 10 to 20 percent down and want to see cash reserves. Confirm the county limit for the town you are shopping in with a lender, because it determines which of these routes is open to you.
New Jersey also has first-time buyer help. The state housing agency, NJHMFA, offers down payment assistance of up to $15,000 depending on the county, structured as a forgivable second loan that must be paired with its first mortgage. Income and price limits apply, so ask an NJHMFA participating lender whether a specific purchase qualifies. For the rest of the first-time buyer picture, see our first-time buyer guide.
Closing costs a New Jersey buyer pays
These are the buyer-side items. Ranges span the $500K to $1.5M price points used below, and the low end belongs with the lower price.
- Attorney: about $1,500 to $3,000. In New Jersey an attorney handles the contract and closing, and the contract has a built-in review period. See the attorney review guide.
- Title insurance and searches: not included in the ranges on this page, because it depends on the home. The buyer pays for the owner's policy and the lender's policy. New Jersey title premiums follow a filed, progressive rate schedule and rise with price, and the lender's policy is discounted when bought with the owner's. Tax and utility searches sit in this line too. Get a quote from the title company or your attorney early.
- Lender fees: about $2,500 to $10,000 for appraisal, underwriting, processing and credit reports. This excludes discount points, which are optional and priced separately.
- County recording fees: under $500. Mercer County posts $43 for the first page of a deed and $33 for a mortgage, plus $10 per added page.
- Inspections: about $1,000 to $3,000 for the home inspection plus radon and pest tests, and where relevant septic, well or oil tank work. Septic and well testing is a real line item in Montgomery and Hopewell; see the inspection guide for the town-by-town shares.
- First-year homeowner's insurance, paid at or before closing: about $1,500 to $6,000. Flood coverage, if required, is extra.
- Prepaid and escrowed property tax: covered in the next two sections.
Without title insurance, these non-title items sum to about $6,800 to $22,500, and they do not scale neatly with price: bigger loans and higher insurance push a purchase toward the top of the range.
Municipal certificates of occupancy and smoke and carbon monoxide certifications are normally the seller's responsibility in New Jersey, which is why they appear on the seller's statement in our seller closing costs guide rather than yours.
The mansion tax: what changed for buyers
Older articles tell buyers to budget a one percent mansion tax on residential purchases over $1,000,000. That is out of date. For contracts signed on or after July 10, 2025, New Jersey replaced the buyer-paid one percent fee with a graduated fee paid by the seller. A buyer at $1M, $1.5M or above should not see it on their side of the closing statement.
Two cautions. A contract signed before July 10, 2025 can fall under the older rules, so ask your attorney if that applies. And sellers near $1M may price differently because of the fee, which is a negotiation point rather than a cost you pay directly. The seller guide linked above walks through the mechanics.
Property tax, insurance and HOA fees by town
At closing the buyer reimburses the seller for property taxes the seller prepaid, and the lender usually sets up an escrow cushion for taxes and insurance. Together I plan on two to four months of property tax in cash at closing. Tax is the biggest town-to-town difference, so here are the effective rates (tax as a share of true market value) with the annual bill they imply on a $750,000 home.
| Town or school district | Effective tax rate | Annual tax on $750K | Closed sales with an HOA | Median HOA, monthly |
|---|---|---|---|---|
| Princeton | 1.814% | $13,605 | 33% | $362 |
| South Brunswick | 1.938% | $14,535 | 60% | $344 |
| Montgomery | 2.060% | $15,450 | 54% | $313 |
| West Windsor-Plainsboro (district) | 2.080% to 2.294% | $15,600 to $17,205 | 64% | $310 |
| of which West Windsor | 2.080% | $15,600 | 51% | $343 |
| of which Plainsboro | 2.294% | $17,205 | 89% | $276 |
| Hopewell (district) | 2.343% | $17,573 | 53% | $225 |
| Robbinsville | 2.345% | $17,588 | 66% | $155 |
| Lawrence | 2.376% | $17,820 | 39% | $250 |
Rates: New Jersey Division of Taxation, 2025. HOA columns: BrightMLS closed sales, October 1, 2025 through September 30, 2026, senior communities excluded, grouped by school district. The West Windsor-Plainsboro row is the whole district, and the two "of which" rows split it, so they are not added again. The Hopewell district covers Hopewell Township, Hopewell Borough and Pennington Borough, and its tax rate shown is Hopewell Township's. The Robbinsville district includes sales whose MLS area is blank. The share counts sales with a recorded fee, and the median is among sales that have a fee. Each row has between 65 and 200 fee-reporting sales. South Brunswick is partly covered by another MLS, so its BrightMLS count is a subset of its sales. Your actual bill is your assessment times the general rate, so use these as planning numbers.
HOA fees depend on what you buy more than where. Across the seven school districts, townhouse sales with a fee had a median of about $336 (interior) to $344 (end unit) a month, and condo units about $364, while only 26 percent of detached sales had any HOA fee at all, with a median of $67. The fee is a monthly cost rather than cash to close, but many associations also charge a one-time capital contribution at closing, so ask for the amount before you commit. Our townhouse and condo guide covers what the fee includes.
Worked example at four price points
First, closing costs on top of the down payment. Property tax uses the 1.81 to 2.38 percent span of the effective rates above, and the tax cash is two to four months of that. Title insurance is left out because it depends on the home, so get a quote for it. Every cell is a range, not a quote.
| Price | Annual tax, range | Tax cash at closing | Other closing costs, excluding title insurance | Total closing costs, excluding title insurance | As % of price |
|---|---|---|---|---|---|
| $500,000 | $9,070 to $11,880 | $1,500 to $4,000 | $6,800 to $22,500 | $8,300 to $26,500 | 1.7% to 5.3% |
| $750,000 | $13,605 to $17,820 | $2,300 to $5,900 | $6,800 to $22,500 | $9,100 to $28,400 | 1.2% to 3.8% |
| $1,000,000 | $18,140 to $23,760 | $3,000 to $7,900 | $6,800 to $22,500 | $9,800 to $30,400 | 1.0% to 3.0% |
| $1,500,000 | $27,210 to $35,640 | $4,500 to $11,900 | $6,800 to $22,500 | $11,300 to $34,400 | 0.8% to 2.3% |
Now the cash you should have ready: down payment plus total closing costs, excluding title insurance. The earnest money deposit is part of the down payment, not on top of it.
| Price | 10% down | Cash to close, 10% down | 20% down | Cash to close, 20% down |
|---|---|---|---|---|
| $500,000 | $50,000 | $58,300 to $76,500 | $100,000 | $108,300 to $126,500 |
| $750,000 | $75,000 | $84,100 to $103,400 | $150,000 | $159,100 to $178,400 |
| $1,000,000 | $100,000 | $109,800 to $130,400 | $200,000 | $209,800 to $230,400 |
| $1,500,000 | $150,000 | $161,300 to $184,400 | $300,000 | $311,300 to $334,400 |
Add your title insurance quote on top of these figures; the premium rises with the price, so ask for a quote at your price.
Two adjustments. At $500,000 a 3.5 percent FHA down payment is $17,500, which puts cash to close at about $25,800 to $44,000 excluding title insurance, if the loan fits the FHA limit and you accept the mortgage insurance. And at $1,000,000, staying within the $832,750 conforming limit takes about $167,250 down, so many buyers there choose between a larger down payment and a jumbo loan.
Reserves after closing
Cash to close is not the whole requirement. Lenders may ask you to show reserves, usually counted in months of your full housing payment, and jumbo lenders tend to ask for more. Separate from the lender, I would keep at least three months of the full monthly payment untouched, because the first year of ownership produces bills the inspection did not predict: a water heater, a furnace service, appliance replacements, the first tax installment.
Moving costs, any immediate repairs you negotiated out of the contract, and furniture are not in the table either. If you are buying a house built before 1978, or one on septic, a well or an oil tank, set aside more. Those are the systems that turn a routine inspection into a real expense.
What this means for you
A workable rule: have the down payment, plus roughly 1 to 5 percent of the price for closing costs before title insurance, plus your title insurance quote, plus three to six months of housing payments in reserve. The percentage is highest at lower prices because attorney, inspection and recording costs do not scale with price. It is lowest at the top because they are a smaller share of a bigger number.
Before you start touring, get a lender estimate for the specific loan you would use and a quote from an attorney. Those two documents replace most of the ranges on this page with real figures. Then check the town: the difference between Princeton's 1.81 percent and Lawrence's 2.38 percent is about $4,200 a year on a $750,000 home, and it recurs every year.
This is general information, not legal, tax or lending advice. Costs vary by lender, title agent, loan program and property, and rules change. Confirm figures with your lender, attorney and title company before relying on them. Sources: BrightMLS closed sales, October 2025 through September 2026; New Jersey Division of Taxation, 2025 General Tax Rates; FHFA 2026 conforming loan limit; NJHMFA; Mercer County Clerk fee schedule.
How much cash do I need to buy a $750,000 home near Princeton?
With 10 percent down, plan on roughly $84,100 to $103,400 in cash at closing, and with 20 percent down roughly $159,100 to $178,400. Those figures combine the down payment with about $9,100 to $28,400 of closing costs, all excluding title insurance, which you add from a quote. They are planning ranges, not quotes, and exclude reserves, moving and repairs.
What are typical closing costs for a buyer in New Jersey?
Around Princeton, buyer closing costs commonly land between about 0.8 and 5.3 percent of the price before title insurance, with the higher percentages at lower prices. The pieces are an attorney, title insurance and searches (quoted separately), lender fees, county recording fees, inspections, first-year homeowner's insurance and a property tax cushion.
Does the buyer pay the NJ mansion tax?
Not for contracts signed on or after July 10, 2025. New Jersey replaced the buyer-paid one percent fee on purchases over $1,000,000 with a graduated fee paid by the seller. A contract signed before that date can fall under older rules, so ask your attorney.
What is the minimum down payment for a home in New Jersey?
Published program minimums are 3.5 percent for FHA loans and 3 percent for Fannie Mae HomeReady or Freddie Mac Home Possible conventional loans. Above the 2026 conforming limit of $832,750, jumbo lenders commonly ask for 10 to 20 percent. NJHMFA down payment assistance of up to $15,000 may help eligible first-time buyers.
Do HOA fees count toward the cash I need?
The monthly fee is an ongoing cost, but some associations also charge a one-time capital contribution at closing. In the seven school districts of the core market over the 12 months from October 2025 through September 2026, townhouse sales with a fee had a median of roughly $336 to $344 a month, while only 26 percent of detached sales had any HOA fee.
How much should I keep in savings after closing?
Lenders may require a set number of months of reserves, and jumbo lenders usually ask for more. On your own, at least three months of the full monthly payment is a sensible floor, with more if the house is older or has septic, a well or an oil tank.
Planning a purchase near Princeton?
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