Graham Lent waited until late summer to find his Brookline apartment, and the wait paid off. His landlord got nervous that the unit wouldn't rent and offered him a free month. "So we got a free month's rent, which was kind of a dealbreaker on the spot," he told NBC Boston on August 31, 2026. In the same report, Jacob Tamkin, a Mission Hill renter, said he'd seen landlords offering "one or two months' rent free."
None of that shows up in the headline number. Boston Pads data put Boston's average asking rent at $3,359 as of September 24, 2026, up 3.04% from a year earlier. On paper, rents are still rising. In practice, this fall's rent cuts are going into free months and broker fees, and asking-rent figures don't capture either one. If you own a two-family or triple-decker, or you're underwriting a purchase, that gap is the number to watch.
What a free month and a broker fee do to a $3,359 lease
Since August 1, 2025, Massachusetts law has required whoever hires a rental broker to pay that broker. Before the change, tenants usually paid the broker a full month's rent. When the landlord hires the broker, that fee now comes out of the same 12 months of rent as any concession.
The table below is simple arithmetic, not a record of signed leases. It uses the September 24 Boston average and assumes the traditional one-month fee, since no one has published what landlords actually pay brokers per lease under the new law.
| Scenario on a 12-month lease | Net months of rent after fee | Net after fee | Net effective monthly rent |
|---|---|---|---|
| No concession, no fee | 12 | $40,308 | $3,359 |
| Landlord pays a one-month fee | 11 | $36,949 | $3,079 |
| One free month plus a one-month fee | 10 | $33,590 | $2,799 |
| Two free months plus a one-month fee | 9 | $30,231 | $2,519 |
A single free month equals 8.3% of a year's rent, more than twice the 3.04% annual rise in the asking average. In the bottom row, the lease still lists $3,359 a month while the owner receives 10 months of rent and then pays a month to the broker, netting about a quarter less, and that's before vacancy days, turnover costs, taxes, or insurance.
Why the asking rent holds while the deal moves
A free month leaves the monthly rent written into the lease untouched. That number becomes the starting point at renewal, and it's the number a buyer or lender sees on the rent roll. A price cut lowers it for good. A concession lowers the year's income once. When a landlord has to give something up to fill a unit, a concession is often the cheaper way to do it.
The weekly figures show both things happening. Boston's average asking rent drifted down from $3,425 on June 15 to $3,398 on August 3 and $3,359 on September 24, 2026, a slide of $66 that still left it above last year. Meanwhile, Boston's availability rate on September 24 was 3.70%, up 112.64% year over year, and its vacancy rate was 3.17%, up 141.98%. Supply more than doubled while the asking rent barely moved. Concessions did most of the adjusting.
Demetrios Salpoglou, CEO of Boston Pads, described the late-August market this way:
"Landlords are still dropping prices and range finding, so you can score a really good deal."
He traced much of the softness to university-heavy neighborhoods. He estimated that about 40,000 international students did not arrive, which he equated to roughly 20,000 two-bedroom apartments. MassLandlords cited Common App data showing international applicants for 2026-27 fell 10%, the steepest decline on record.
The rent trackers can't agree on which way rents are moving
If asking rents miss the concessions, the different rent trackers should give mixed signals. They do. Here are four readings from summer and early fall 2026:
- Boston Pads put Boston's average asking rent at $3,359 on September 24, up 3.04% year over year.
- MassLandlords, citing Realtor.com's August 2026 data, reported Boston-area median rent at $2,939, down 3.4% year over year.
- The Boston Globe reported Apartment List's Boston two-bedroom median at $2,524 in June 2026, up from $2,498 in June 2025.
- The same Globe article cited Zillow's estimate that Boston rents rose 2.9% from June 2025 to June 2026.
These sources use different areas, different unit mixes, and different statistics, so a disagreement of a few percentage points is expected. What they have in common matters more. All four track asking rents. None of them sees a free month written into a signed lease. The MassLandlords piece cited Realtor.com's finding that 43.5% of listings across 50 large U.S. markets offered concessions in August 2026, up from 40.4% a year earlier. That's a national figure, and no one has published a Boston-only equivalent.
Landlords started paying the broker before the law required it
Boston Pads tracks who pays the broker on its Boston listings. In July 2024, 15.12% of listings had the landlord paying the full fee and 70.77% left the fee to the tenant. By July 2025, a few days before the law took effect, the landlord-paid share was already 56.46%. By July 2026, it was 68.54%, and tenant-paid listings were down to 25.40%.
The timing matters. Boston Pads reports that tenant-paid listings began falling quickly in March 2025, as weaker demand from international students was already showing. The law and the soft market pushed in the same direction at the same time. Paying the broker is now part of what it costs to fill a unit, and in a weaker year a landlord might have absorbed the fee anyway.
You can't recover that fee by adding it to the tenant's charges. The state's FAQ says a landlord may not add a broker-fee surcharge or disguise reimbursement as another fee. A landlord can set the rent for a new tenancy, subject to notice requirements and other applicable laws. Penalties can reach three times the illegal charge plus attorney's fees, and brokers can face fines or license revocation. NBC Boston reported in September 2026 that hundreds of broker-fee complaints had reached the Attorney General's Office since the law took effect.
Small owners are the most exposed. Greg Vasil, CEO of the Greater Boston Real Estate Board, told NBC Boston that small owners hold more than 60% of Massachusetts rental housing and often have no organization keeping them up to date on legal changes. Boston Pads says it still meets landlords who don't know about the law, especially triple-decker owners who may go years between vacancies. For those owners, the first turnover under the new rules can bring a fee they didn't budget for.
Where the gap is widest
The neighborhood numbers as of September 24, 2026, show the same pattern, most sharply around the universities:
- Mission Hill: the average asking rent was $4,217, up 10.68%, while vacancy rose 184.56% to 3.87%. An asking rent climbing alongside a near-tripling of vacancy is the clearest sign that the price adjustment is happening somewhere other than the asking rent.
- Allston: the average was $3,190, up 3.47%, with vacancy up 130.91% to 3.81%.
- Fenway/Kenmore: the average was $3,109, up 4.82%, with vacancy up 144.37% to 3.47%.
- Brighton: the average was $3,150, up 1.88%, with vacancy up 87.92% to 2.80%.
Boston Pads also reported in August that larger apartments near the universities were leasing more slowly. Its 2026 annual report, published in April, put Boston's median time on market at 24 days, compared with 19 days in January 2025. Its leasing guidance for those units listed half-month and one-month-free offers, lower deposits, and reduced move-in costs as current tools.
How to read a Boston rent roll after this September
If you're pricing a 2–4 family or reviewing your own building, the 2026 turnover changed what a rent roll can tell you.
- Ask for the concession behind each lease. A unit leased at $3,400 with one free month brings in about $3,117 a month over 12 months. The rent roll shows only the first number.
- Ask who paid the broker, and how much. If the seller paid a one-month fee on each turnover this year, that's a recurring cost. Budget for it at the expected turnover rate.
- Check where the lease ends. A lease signed with a concession in a weak September will renew from its listed rent, so its first-year income was lower than that rent suggests.
- Check how a seller passed costs on. In May 2026, WBUR described an AGO complaint in which a listing by a Newton brokerage asked a renter to pay half the broker fee or accept a $100-per-month rent increase. If a seller's leases include charges like that, they could become a liability for the new owner.
None of this is financial or legal advice. It's how this market looks when you count what landlords actually collect.
FAQ
Is Boston rent going up or down in 2026? Asking rents are close to flat, and the trackers disagree on the direction. Boston Pads showed +3.04% year over year as of September 24, 2026, while Realtor.com data reported by MassLandlords showed a 3.4% decline. Neither figure accounts for concessions.
Can a landlord raise the rent to cover the broker fee? Under the state's FAQ, a landlord may set the rent for a new tenancy but may not add a broker-fee surcharge or disguise reimbursement as another fee.
When can a tenant still be charged a broker fee? Only when the tenant independently hires the broker to represent them. Contacting a broker through an online listing doesn't make the renter responsible for the fee if the landlord hired that broker.
Northeast Realty + Co. underwrites Boston multifamily from collected rent, with concessions, broker fees, and turnover costs included, and manages buildings the same way. If you want to see deals underwritten on what tenants actually pay, join the Insiders Club.