What Will My Monthly Payment Be on a $650,000 Home in Quincy, MA?
Last updated: September 12, 2026
FRESHNESS: rate/stat-dependent
BUYER EDUCATION
What Will My Monthly Payment Be on a $650,000 Home in Quincy, MA?
September 12, 2026 | By Krista Recker
On a $650,000 Quincy home with 20% down, plan on roughly $4,186 a month: about $3,342 in principal and interest on a $520,000 loan at 6.66%, about $644 a month in Quincy property taxes including the city's Community Preservation Act surcharge, and about $200 a month in homeowners insurance. Put 10% down instead and that number moves to roughly $4,799, because you borrow more and you add private mortgage insurance. Put 5% down and you are near $5,096.
Figures checked against the Freddie Mac Primary Mortgage Market Survey for August 27, 2026, the City of Quincy Assessors FY2026 tax rate and Assessors FAQ, and the Massachusetts Division of Insurance annual home insurance report, in late August 2026. Everything below is an illustrative estimate, not a loan quote, an insurance quote, a tax bill, or an underwriting decision.
Most payment calculators online give you the principal and interest and stop there. That is the number that gets people in trouble, because in Quincy the taxes, insurance, and mortgage insurance can add $840 to $1,130 a month on top of it. Below is the full stack, with the Quincy-specific pieces filled in.
Who this applies to
This is for you if you are shopping in Quincy in the $500,000 to $800,000 range and trying to figure out what you can actually live with each month, not just what a lender says you qualify for. It applies whether you are looking at a single family in West Quincy, a two family in Quincy Point, or a condo in Marina Bay or Quincy Center.
It is especially relevant if you are coming from renting in Boston or Somerville, where your monthly housing cost was one number and nothing else. Ownership splits that number into four or five pieces that move independently.
It applies less if you are paying cash or buying an investment property, where the math runs on returns rather than payment comfort.
What is actually included in a monthly mortgage payment?
Five things, and only the first one is what most calculators show you.
- Principal and interest. The loan payment itself, fixed for the life of a 30-year fixed rate mortgage.
- Property taxes. In Quincy, billed quarterly by the city and usually collected monthly by your lender into escrow.
- Homeowners insurance. Also usually escrowed, also paid on your behalf.
- Private mortgage insurance, or PMI, if you put less than 20% down on a conventional loan. This is not escrowed in the same sense; it is simply added to your payment until it comes off.
- Condo or HOA fees, if you buy a condo. You pay these directly to the association, not through the lender, but the lender counts them in your qualifying housing expense.
The industry shorthand is PITI, for principal, interest, taxes, and insurance, or PITIA once you add association dues. The two pieces that surprise people most in Quincy are the tax line and, on condos, the association fee.
One note on the rate. The 6.66% used throughout this post is the Freddie Mac national survey average for the week of August 27, 2026. It is a benchmark, not a quote. Your actual rate moves with credit, points, loan type, occupancy, debt-to-income, loan size, and individual lender pricing.
How much are the property taxes on a $650,000 home in Quincy?
Quincy's FY2026 residential tax rate is $11.78 per $1,000 of assessed value. On a home assessed at $650,000, that is $7,657 a year in base tax, or about $638 a month.
Quincy also assesses a Community Preservation Act surcharge equal to 1% of the property tax due on the parcel. On a $7,657 base bill that is about $76.57 a year, or roughly $6.38 a month, bringing the total to about $7,734 a year or $644 a month. Worth flagging: Quincy's CPA program materials describe the surcharge adopted in 2006 as "less than 1%," while the Assessors FAQ describes it as 1% of the tax due. The dollar difference at this value is a few cents a month, but if you want the exact treatment for a specific parcel, the Assessors office is the place to confirm it. Quincy does not apply the optional $100,000 residential value exemption to the CPA surcharge that some other Massachusetts municipalities have adopted.
Here is the part that trips buyers up. Your tax bill is based on the city's assessed value, not on what you paid. Assessments in Massachusetts are set from prior-year sales data, so a home you buy for $650,000 in 2026 may currently be assessed at $580,000 or at $690,000. Pull the actual assessment from the Quincy Assessors before you build your budget, and understand that it can move at the next revaluation.
One more Quincy specific worth knowing. Quincy's published FY2026 materials list statutory personal exemptions for qualifying taxpayers, including certain seniors, veterans, surviving spouses, blind persons, and hardship cases, but they do not list a broad residential exemption for all owner-occupants the way Boston's do. If you are moving from Boston, where owner-occupants get a substantial assessed-value reduction, do not assume that discount follows you across the Neponset. Exemption applications are filed annually with the Assessors, with an April 1 deadline for most programs.
Quincy bills taxes quarterly, due August 1, November 1, February 1, and May 1. The August and November bills are preliminary, generally totaling about half of the prior year's tax. The February and May bills reconcile the year using the new assessment and the new tax rate, which is why a payment that felt fine in the fall can jump in February.
How much is homeowners insurance in Quincy?
Use $200 a month as a starting-point budget, not as a quote, and get a real one in your first week under contract.
The Massachusetts Division of Insurance reported an average annual premium of $2,371 for traditional homeowners policies statewide in 2024, up from $2,054 in 2023. That is a statewide aggregate across all policies. It is not a Quincy average, and it says nothing about what a specific $650,000 house will cost to insure.
Where a given Quincy property lands depends on rebuilding cost, property age and condition, roof and wiring, claims history, deductible choice, carrier availability, and above all coastal exposure. A 1950s colonial in West Quincy outside any mapped flood zone prices very differently from a house in Houghs Neck or Adams Shore carrying a percentage-based wind deductible. For a coastal property I use $350 a month as an illustrative planning placeholder rather than $200, but that is a budgeting cushion, not a market figure.
Flood is a separate policy. Standard homeowners policies generally exclude flood damage, and federally regulated lenders require flood insurance on properties in a FEMA Special Flood Hazard Area. Being near the water in Quincy does not automatically mean you are in a mapped zone or that coverage is required. The questions that matter are the flood-zone determination, the elevation, the lender's requirement, and what a policy actually costs on that address.
How much is PMI on a Quincy home with less than 20% down?
PMI generally runs 0.2% to 1.5% of the loan amount per year, driven mostly by credit score and loan-to-value. The examples in this post assume borrower-paid monthly PMI of 0.40% a year at 90% LTV, which is about $195 a month on a $585,000 loan, and 0.55% a year at 95% LTV, which is about $283 a month on a $617,500 loan. Those are illustrative assumptions, not quotes or market averages. Real PMI pricing varies sharply with credit score, DTI, occupancy, property type, loan program, and mortgage insurer, and a borrower with a score in the low 600s can pay two or three times these figures.
PMI is not permanent. Under the federal Homeowners Protection Act, on most conventional loans with borrower-paid PMI you may request cancellation when the balance is scheduled to reach 80% of the home's original value, and the servicer must terminate it automatically at 78% of original value, provided the loan is current. Borrower-requested cancellation can carry additional conditions on payment history, junior liens, and property value. Lender-paid mortgage insurance and some loan programs work differently, so confirm which rules apply to your loan in writing.
This is the reason the gap between 10% down and 20% down is bigger than the loan size alone suggests. You are paying interest on more money and paying for insurance that protects the lender, not you.
What does the full monthly payment look like at different down payments?
The table below uses a 30-year fixed rate of 6.66%, Quincy's FY2026 rate of $11.78 per $1,000 plus the 1% CPA surcharge, and $2,400 a year in homeowners insurance unless noted. Each row states its own assessed value. Your actual numbers will differ, and the point of the table is the shape of the gaps, not the precision of any single cell.
| Scenario | Cash needed for down payment | Estimated total monthly payment | What drives the difference |
|---|---|---|---|
| $650,000 single family, $650,000 assessment, 20% down, $520,000 loan, no PMI | $130,000 plus closing costs | About $4,186 | $3,342 principal and interest, $644 taxes with CPA, $200 insurance. No mortgage insurance and the smallest loan balance, which is why this is the cheapest monthly outcome available at this price |
| $650,000 single family, $650,000 assessment, 10% down, $585,000 loan, PMI at 0.40% | $65,000 plus closing costs | About $4,799 | $418 more in principal and interest plus roughly $195 in PMI, for about $613 a month more than the 20% scenario |
| $650,000 single family, $650,000 assessment, 5% down, $617,500 loan, PMI at 0.55% | $32,500 plus closing costs | About $5,096 | The largest loan and the highest PMI assumption, costing about $910 a month more than 20% down while freeing up $97,500 in cash today |
| $500,000 Quincy condo, $500,000 assessment, 10% down, $450,000 loan, PMI at 0.40%, $450 monthly HOA fee | $50,000 plus closing costs | About $4,190 | $2,892 principal and interest, $496 taxes with CPA, $200 insurance placeholder, $150 PMI, $450 association fee. A unit-owner HO-6 policy often costs less than $200 a month, which would pull this lower |
| $650,000 coastal single family, $650,000 assessment, 20% down, insurance at $4,200 a year | $130,000 plus closing costs | About $4,336 | Same loan as the first row, with roughly $150 a month more in premium as an illustrative allowance for wind exposure and a possible percentage-based wind deductible |
Note what the condo row shows. A $500,000 condo with a $450 fee and a $650,000 house with 20% down land within a few dollars of each other. The condo takes $80,000 less cash up front. It also carries a fee that has no end date and that the association can raise, plus exposure to special assessments the house does not have.
Do condo fees count toward what I can qualify for?
Yes, and this is where condo buyers get caught. For a primary residence, the qualifying housing expense lenders use includes principal, interest, taxes, insurance, mortgage insurance where applicable, and HOA dues. The fee counts against you exactly as if it were part of the mortgage payment, even though you pay it to the association directly.
At 6.66% on a 30-year fixed, a $600 monthly fee is equivalent to roughly $90,000 to $95,000 of principal-and-interest borrowing capacity. The real effect on your approval depends on your full DTI picture, so treat that as a payment-equivalency illustration rather than a fixed underwriting result. It is still often the difference between two buildings a buyer thought were interchangeable.
Quincy fees vary widely by building, unit size, age, amenities, reserve funding, and what the fee actually includes. Heat, hot water, master insurance, and parking may or may not be in there, and two units at the same price point can carry very different fees. Ask for the current fee and its inclusions, the last two years of association meeting minutes, the reserve balance or reserve study, any pending or recent special assessments, and the rental restrictions, before you fall in love with a unit.
How does escrow work in Massachusetts, and does it earn interest?
If your lender escrows, you pay one-twelfth of your annual taxes and insurance each month, the lender holds it, and the lender pays the bills when they come due. At closing you typically fund the escrow account with several months of payments up front, which is part of why cash to close exceeds your down payment.
One Massachusetts detail worth knowing: a first mortgage lender holding a real-estate-tax escrow on an owner-occupied one to four family property in Massachusetts is required to pay interest on those tax escrow funds. That requirement applies to the tax portion, not to insurance escrow. It is not a large sum, but it is your money, and it should show on your annual escrow statement.
Escrow accounts also get analyzed once a year. If Quincy raises your assessment or your insurance renews higher, your monthly payment adjusts upward and you may owe a shortage. Buyers are routinely surprised by this in year two. A fixed rate mortgage means your principal and interest is fixed. Your total payment is not.
What is the difference between what I qualify for and what I should spend?
Lenders calculate debt-to-income by dividing your total recurring monthly obligations, including the proposed housing payment, by gross monthly income. The permitted ratio is not one number. On conventional loans, Fannie Mae's manual underwriting generally caps total DTI at 36%, allows up to 45% for borrowers who meet credit score and reserve requirements, and permits up to 50% on files approved through Desktop Underwriter. Lender overlays narrow that further. So "what you qualify for" depends heavily on the program and the file, not on a single industry rule.
Whatever the ceiling, it includes your mortgage, taxes, insurance, PMI, HOA fees, car loans, student loans, and minimum credit card payments. It does not include utilities, commuter rail or T passes, childcare, home maintenance, or anything you do for fun.
As a planning rule of thumb, many owners reserve 1% to 2% of a home's value per year for maintenance and capital repairs. On $650,000, that is about $542 to $1,083 a month that never appears on any approval letter. Quincy has a lot of older housing stock, so for any home built before the 1960s, price out the roof, the heating system, the electrical panel, and the windows during your inspection rather than guessing where in that range you land.
The number I actually care about with clients is not the approval amount. It is what the payment does to the rest of your life at that number.
The Bottom Line
On a $650,000 Quincy purchase at today's benchmark rates, plan on roughly $4,186 a month with 20% down, roughly $4,799 with 10% down, and roughly $5,096 with 5% down. Taxes at Quincy's FY2026 rate of $11.78 per $1,000 plus the 1% CPA surcharge add about $644 a month on a $650,000 assessment, insurance runs about $200 a month as a planning figure and more near the water, and PMI adds roughly $195 to $285 under the illustrative assumptions used here.
Do three things before you build a budget around any of it. Pull the property's actual assessed value from the Quincy Assessors rather than assuming it equals your purchase price. Get a real insurance quote, and a flood-zone determination, in week one of your contract rather than week six. And if it is a condo, get the fee, the inclusions, and the reserve study before you get attached.
If you want to run these numbers against a specific address in Quincy, reach out through the contact page and I will build the real payment with you, assessment, insurance quote, fee, and all.