Is there a legal limit on late fees in Massachusetts?

No statutory cap (see reasonableness standard and notes). Once the 30-day threshold passes, no dollar or percentage cap applies; general contract principles (fees must be a reasonable pre-estimate of damages, not a penalty) and the Attorney General's 940 CMR 3.17 unfair-practices regulations police excess.

Does a late fee have to be written into the lease in Massachusetts?

Yes — in Massachusetts a late fee must be stated in the lease.

Can a landlord charge a daily late fee in Massachusetts?

Not before day 30. Any interest or penalty structure, daily or otherwise, is void to the extent it accrues within 30 days of the due date (§ 15B(1)(c)).

What late fees can a landlord charge in Massachusetts?

Verified July 8, 2026 Updated August 12, 2026 All Massachusetts topics →

Legislative changes ahead — not yet in force. The rules on this page reflect the law in force today. The following measure would change it:

HD2501 / 'An Act enabling local options for tenant protections' (194th General Court, 2025-2026) — Would repeal G.L. c. 40P (the Massachusetts Rent Control Prohibition Act) and replace it with a local-option regime letting municipalities cap annual rent increases at the lesser of CPI or 5% and adopt just-cause eviction. Perennial refile of prior sessions' H.1304/H.1378/H.2103, none of which advanced.Status: Filed in the 194th General Court; in committee; not enacted as of the checked date. Chapter 40P remains fully in force. (checked 2026-07-08).

Massachusetts law forbids any late fee, interest, or penalty on unpaid rent until the rent is a full 30 days overdue — the longest mandatory grace period in the country — and any lease clause purporting to charge earlier is void and unenforceable.

Cited to G.L. c. 186, § 15B (1)(c), (8) and 2 more Massachusetts statutes · Verified July 8, 2026

The statute caps the timing, not the amount: once rent is 30 days late a lease-based fee may be charged, subject to general limits on contractual penalties and the consumer-protection regulations. A fee must be in the lease to be collected at all, and because putting a conflicting fee provision in a lease and trying to enforce it is itself a security-deposit forfeiture trigger under § 15B(6)(c), an illegal early late-fee clause can cost a landlord the entire deposit. Note that the 14-day nonpayment notice to quit under § 12 operates independently — a landlord can start eviction well before day 30 even though no fee may be charged.

Massachusetts late fees at a glance

Statutory cap	No statutory cap (see reasonableness standard and notes)
Mandatory grace period	30 days
Must be in the lease	Yes
Daily fees	Not before day 30. Any interest or penalty structure, daily or otherwise, is void to the extent it accrues within 30 days of the due date (§ 15B(1)(c)). After 30 days no statute caps the amount, but penalty-style fees remain subject to liquidated-damages doctrine and c. 93A unfair-practice limits.
Reasonableness standard	Once the 30-day threshold passes, no dollar or percentage cap applies; general contract principles (fees must be a reasonable pre-estimate of damages, not a penalty) and the Attorney General's 940 CMR 3.17 unfair-practices regulations police excess.

Cite this page: "Landlord Atlas, Massachusetts Late Fee Laws (verified July 8, 2026), landlordatlas.com/laws/late-fees/massachusetts/" — free to cite and quote with a link (how these records are verified). Every figure above is cited to the Massachusetts statute in the citations section below.

Check a late fee against the Massachusetts rules — free, no signup, built on the same verified Massachusetts rules as this page.

Notes and caveats

The statute caps timing, not amount — The 30-day grace period comes from § 15B(1)(c); no dollar or percentage cap is listed because the statute regulates when a fee may accrue, not how much it may be.
An early late-fee clause can forfeit the entire deposit — Putting a conflicting fee provision in the lease and attempting to enforce it forfeits the security deposit under § 15B(6)(c) — the practical teeth of the 30-day rule.
The 30-day fee bar and the 14-day eviction notice are separate clocks — A common point of confusion: no fee may be charged until rent is 30 days late, but the 14-day nonpayment notice to quit runs on its own independent clock.
A federal shutdown suspends late fees for impacted federal workers — Under G.L. c. 239, § 17(e) (added by St. 2025, c. 73, § 54), a landlord may not impose a late fee for nonpayment of rent — or furnish the nonpayment to a consumer reporting agency — where the tenant is an impacted federal worker who, within 30 days of the missed payment, gives the landlord notice and documentation that the nonpayment results from a federal government shutdown. Since July 1, 2026, a partial shutdown also triggers the section (St. 2026, c. 137, § 84 changed the trigger from 'all' to 'any' non-essential federal functions ceasing). Section 17 is not yet displayed in the online General Laws; the session laws are the operative citations.

Common questions: Massachusetts late fees

Each answer is the verified value from the table above, restated as a direct answer. Free to quote with a link to this page.

Is there a legal limit on late fees in Massachusetts?: No statutory cap (see reasonableness standard and notes). Once the 30-day threshold passes, no dollar or percentage cap applies; general contract principles (fees must be a reasonable pre-estimate of damages, not a penalty) and the Attorney General's 940 CMR 3.17 unfair-practices regulations police excess.
Is there a grace period before rent is late in Massachusetts?: 30 days.
Does a late fee have to be written into the lease in Massachusetts?: Yes — in Massachusetts a late fee must be stated in the lease.
Can a landlord charge a daily late fee in Massachusetts?: Not before day 30. Any interest or penalty structure, daily or otherwise, is void to the extent it accrues within 30 days of the due date (§ 15B(1)(c)).

Changes since last full verification

The Verified date above (July 8, 2026) marks the last time every figure on this page was verified end-to-end against official state sources. The changes below were published since then, each verified against the official source it names (what these dates mean).

Updated, August 12, 2026 — Massachusetts' standing federal-shutdown eviction moratorium is now recorded. G.L. c. 239, § 17 (St. 2025, c. 73, § 54) switches on during a federal shutdown: no nonpayment termination or notice to quit against a documented impacted federal worker, a certification requirement on every summary process complaint, no default judgment, tolled deadlines, a 30-day continuance right, a late-fee bar with a credit-reporting bar (§ 17(e)), and landlord access to last month's rent held under c. 186, § 15B (§ 17(g)). Since July 1, 2026 a partial shutdown also triggers the section (St. 2026, c. 137, § 84). The section is not yet in the online General Laws, so the session laws are cited. The eviction page's discretionary-stay wording also now tracks the statute's current 'person with a disability' terminology (St. 2026, c. 102).

Statute citations

G.L. c. 186, § 15B (1)(c), (8) (verified 2026) Official source
St. 2025, c. 73, § 54 (G.L. c. 239, § 17(e)) (verified 2026) Official source
St. 2026, c. 137, § 84 (verified 2026) Official source

How this record was verified: Direct read of statute text on the official Massachusetts General Court site (malegislature.gov): G.L. c. 186, § 15B read in full (current text including the St. 2025, c. 9, §§ 54-55 amendments effective 2025-08-01), c. 186, § 12 read in full, c. 186 chapter index and c. 40P location confirmed on malegislature.gov, cross-checked against the Mass.gov official law-library pages on security deposits and landlord-tenant law (which also confirm c. 40P's continued force and the 2025 broker-fee change to c. 112, § 87DDD1/2).