Should You Sell and Give Up Your Low Mortgage Rate in Boston?

Trading a 3 percent mortgage for a new loan at the October 1, 2026 average of 7.28 percent can raise the monthly principal and interest on a similar-priced home by more than 60 percent. Selling can still make sense when the home no longer works for you, you are downsizing with a large equity cushion, or your equity covers most of the next purchase.

Is it worth selling your Boston home if it means giving up a low mortgage rate?

It depends on how much of your equity you keep and what you are moving into. With the 30-year fixed average at 7.28 percent on October 1, 2026, a seller who buys a similar-priced home can see the monthly principal and interest payment rise by more than 60 percent compared with a 3 percent loan. Selling can still make sense when you need a different home for a real reason, your equity covers most of the next purchase, or you can keep the old home and rent it. It rarely makes sense just to "cash in" without a plan for the next payment.

If you bought or refinanced in Jamaica Plain, Roslindale, Hyde Park, Dorchester, or Roxbury in 2020 or 2021, your mortgage rate may be the most valuable part of your housing costs.

Freddie Mac's October 1, 2026 survey put the 30-year fixed average at 7.28 percent, up from 7.03 percent the week before and the highest weekly reading since November 2023. The average was 7.24 percent on October 29, 2026. Those numbers should shape your decision. They should not make it for you.

The real question is not "are rates high?" It is "what does the gap cost me every month, and what do I get in exchange for paying it?"

Key Takeaways

• Freddie Mac's October 1, 2026 survey put the 30-year fixed average at 7.28 percent, the highest weekly reading since November 2023.
• In the example, a seller with a $600,000 loan at 3 percent who buys a $900,000 home would pay about $4,150 a month in principal and interest, roughly $1,620 more than today.
• A lateral move is expensive right now, a move up is very expensive, and a move down can be close to a wash.
• Renting the home, an assumable FHA, VA, or USDA loan, a seller credit or buydown on your purchase, or resizing the move can soften the gap.
• If you sell, price to current comparable sales and work from your net, not your list price.

How much more would you pay if you give up a low mortgage rate?

In this example, about $1,620 more a month for a home of the same value. Here is an example with round numbers. Say you bought in 2021 with a $600,000 loan at 3 percent on a 30-year term. Your principal and interest payment is about $2,530 a month. Five years in, you owe roughly $533,000.

Now say your home sells for $900,000:

• Payoff of your remaining mortgage: about $533,000
• Massachusetts deed excise tax (tax stamps), customarily paid by the seller, at $4.56 per $1,000: about $4,100
• Commission (negotiable), attorney fees, certificates and other selling costs: assume roughly $70,000 for this example
• Cash left over: about $293,000

If you put all of that into a $900,000 purchase, you would borrow about $607,000. At 7.28 percent, the principal and interest payment is about $4,150 a month. That is roughly $1,620 more than you pay today, or about $19,500 a year, for a home of the same value.

If you stretch to a $1.1 million home, the loan is about $807,000 and the payment is about $5,520, more than double your current payment. If you downsize to a $700,000 home, the loan is about $407,000 and the payment is about $2,790, roughly 10 percent above what you pay now. These figures leave out property taxes, insurance, condo fees and the buyer-side closing costs on your next home, and they assume you put every dollar of your proceeds into the purchase.

The pattern: a lateral move is expensive right now, a move up is very expensive, and a move down can be close to a wash. Long-time owners usually have more equity, which is what makes some of these moves workable.

For what leaves your pocket at the closing table, see the seller net sheet and the cost to sell a home in Greater Boston.

When does selling still make sense with a low mortgage rate?

When what you gain from the move is worth the higher payment. The payment gap is a cost. Sometimes it is a cost worth paying. Owners who move at a higher rate and feel good about it usually fit one of these situations:

• The home no longer works for you. You need more space, less space, one-floor living, or a home closer to a new job. If the house is not doing its job, the "cheap" payment is not really cheap.
• You are downsizing with a large equity cushion. If you are buying for much less than you are selling, the new payment can land close to the old one, and you free up cash. See the downsizing in Jamaica Plain guide.
• You own a 2 to 3 family and the numbers have changed. Rental income, repair costs, and how you use the property may point toward selling, which is a different calculation from a single-family move.
• Your equity covers most of the next home. The rate on a small loan matters much less.
• You plan to refinance later and can carry the higher payment until then. This is the riskiest of the group. Nobody can promise rates will fall, so a purchase should not depend on it. See buying now or waiting for lower rates.

How can you keep your low rate and still move?

You can rent the home, use an assumable loan, negotiate help on the purchase, resize the move, or wait. Each option has limits, so run it past your lender and your attorney before you decide.

1. Rent the home you have. This keeps the loan in place. Check your mortgage terms first, because many owner-occupant loans require you to live in the home for a period, and you take on landlord duties under Massachusetts law. The guide on selling a Boston rental with tenants in place covers those rules if you later sell with a tenant.
2. Check whether your loan is assumable. FHA, VA, and USDA loans can sometimes be taken over by a qualified buyer, which turns your low rate into a selling point. The assumable mortgage guide for Boston sellers covers the liability and VA entitlement questions to settle first.
3. Negotiate help on the purchase side. When you buy your next home, a seller credit toward closing costs or a temporary rate buydown can soften the first years of the payment. A 2/1 buydown lowers the rate for the first two years only, so it buys time, not a permanent fix.
4. Resize the move. A smaller home, a condo, or a different price point can shrink the payment gap far more than a few quarter points.
5. Wait, on purpose. If your life does not require a move, staying put is a legitimate answer. Just do it with a number in mind.

Run your own numbers before you list, not after you receive offers. Once the Purchase and Sale Agreement is signed, a Massachusetts sale runs on firm deadlines, and you do not want to learn what your next payment looks like with a closing date already set.

How should you price your home when rates are high?

Price to current comparable sales and work from your net proceeds. Higher rates change the buyer pool. The buyers still shopping have run their payment numbers and are typically pre-approved. They have little patience for a home priced for the market of six months ago.

• Price to current comparable sales. A price that assumed lower rates is a bigger risk than a lack of buyers. Recent sales close to your home matter more than citywide headlines. See how to price your home to sell in Boston.
• Work from your net, not your list price. What you clear after your mortgage payoff, tax stamps, attorney fees, and the commission you negotiate is the number that drives the payment math above. Juan builds a seller net sheet with sellers before a listing goes live.
• Consider helping the buyer with their rate. A seller credit the buyer can put toward closing costs or a rate buydown can make the monthly payment work for more buyers, and sometimes does more than an equal price cut. Lenders cap these contributions. On conventional loans sold to Fannie Mae, seller contributions, including a seller-funded buydown, are limited to 3, 6 or 9 percent of the price depending on the down payment (2 percent on investment property); FHA and VA loans have their own limits. The seller concession vs. price reduction guide compares the two.

Should you list now or wait for rates to drop?

Nobody can tell you where rates will be next spring. A few points hold either way:

• Waiting has costs. Every month is another month of carrying costs, plus uncertainty about prices and rates where you are moving next.
• Lower rates bring back competition. If rates fall, sidelined buyers return, but so do owners who have been holding off on selling, and you would be buying in a busier market yourself.
• Condition and price matter more than the rate. A home in good condition, priced to what current sales support, can still draw serious buyers now. If your plan only works at a price from a lower-rate market, it is better to see that in your cost to sell before you list.

How do you run your own numbers before you decide?

Compare your current payment, your likely proceeds, and your next payment side by side before you list.

Giving up a low rate is a real cost, and the right answer depends on your equity, your next home, and what your life requires. Juan can build a side-by-side comparison of your current payment, your likely proceeds, and your next payment at current rates, so you can see the whole picture before you list.

Payment examples are illustrations for principal and interest only, not a loan offer or personalized financial advice.

FAQ

Should I sell my house if I have a 3 percent mortgage?

Not without a reason beyond the sale itself. If you buy a similar home, your principal and interest payment could rise by more than 60 percent at October 2026 rates. If you are downsizing or have a large amount of equity to put down, the gap can be much smaller.

How much more would my payment be at 7.28 percent?

It depends on the loan size. On a $607,000 loan, principal and interest at 7.28 percent is about $4,150 a month, compared with about $2,530 on a $600,000 loan at 3 percent. Property taxes and insurance are on top of both.

Can I keep my low-rate mortgage and rent out my Boston home?

Sometimes. Many mortgages require you to live in the home as your primary residence for a period, and renting it early can violate those terms. Talk to your lender first, and plan for Massachusetts landlord rules, including security deposit and notice requirements.

Are mortgage rates going to drop soon?

No one knows. Plan around the payment you can carry today, and treat a lower rate in the future as a bonus.

Do higher rates mean I'll get less for my home?

Not necessarily. Higher rates shrink the buyer pool, but the buyers still in it are usually pre-approved and serious. A home priced to current comparable sales has the best chance. A home priced for last year's rates is more likely to sit.

What do I owe in Massachusetts taxes when I sell?

The deed excise tax is $4.56 per $1,000 of the sale price and is customarily paid by the seller. Some sellers also owe capital gains tax if their profit exceeds the federal exclusion of $250,000 ($500,000 for married couples filing jointly) and they don't meet the ownership and use tests. See the capital gains guide for Massachusetts home sellers.

The bottom line: giving up a low rate is a real cost, so run your payment, proceeds, and next-home numbers before you list.

Sources

• Freddie Mac Primary Mortgage Market Survey, 30-year fixed rate, via FRED (series MORTGAGE30US): https://fred.stlouisfed.org/series/MORTGAGE30US
• Fannie Mae Selling Guide B3-4.1-02, Interested Party Contributions: https://selling-guide.fanniemae.com/sel/b3-4.1-02/interested-party-contributions-ipcs
• M.G.L. c.64D §1 (deed excise): https://malegislature.gov/Laws/GeneralLaws/PartI/TitleIX/Chapter64D/Section1

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About Juan Murray

Juan Murray is a Boston broker associate with more than 30 years of experience helping buyers, sellers, and investors across Greater Boston, personally leading every transaction from the first conversation through closing.

RE/MAX Real Estate Center · (978) 581-0801

Equal Housing Opportunity. Juan Murray is licensed as a Broker in Massachusetts, regulated by the Massachusetts Board of Registration of Real Estate Brokers and Salespersons. This article is general information only and does not constitute legal, tax, or financial advice. Confirm your specific costs and obligations with your closing agent, tax advisor, or lender.