There is no Philadelphia rent increase limit on market-rate apartments. Neither Pennsylvania law nor any city ordinance caps the dollar amount or percentage by which a landlord can raise your rent. What the city does regulate is the process: written notice on a set timeline, a valid rental license, no outstanding code violations, and no retaliation. An increase that skips any of those requirements can be challenged, even if the number itself is legal.
One timing rule matters before anything else. A landlord cannot change the rent in the middle of a fixed-term lease. If you signed a one-year lease at a set monthly rate, that rate holds until the term ends. Only at renewal can the landlord propose a new figure, and only after giving you proper notice.
How Much Notice Your Landlord Must Give
Philadelphia Code Section 9-804 ties the notice period to the length of your lease. For a lease of one year or longer, you must receive written notice at least 60 days before the new rent takes effect. For a lease shorter than one year, the minimum is 30 days.1Philadelphia Code. Philadelphia Code 9-804 – Unfair Rental Practices
The notice has to be in writing and must state three things: the amount of the increase, the date it takes effect, and the new total monthly payment. Delivery must be by hand or by first-class mail with proof of mailing. A text, a phone call, or a hallway conversation does not count.1Philadelphia Code. Philadelphia Code 9-804 – Unfair Rental Practices
If the notice is late or missing required information, your existing rent typically stays in place until the landlord delivers proper notice. Keep the envelope. A photo of the postmark can decide a dispute later.
When Your Landlord Cannot Raise Rent at All
Certain conditions block an increase outright, no matter the amount. A landlord cannot raise rent on a property with outstanding building code violations. Philadelphia’s Fair Housing Commission classifies that as an unfair rental practice: a cited property cannot respond by charging more.2City of Philadelphia. Unfair Rental Practices
Licensing is the other gate. Landlords must hold a current rental license and give tenants a valid Certificate of Rental Suitability at the start of each tenancy. The city only issues that certificate when the property has no outstanding code violations and the owner holds all required licenses, and the owner must attest that fire protection equipment works, operating systems function, and the unit is habitable.3Philadelphia Code. Philadelphia Code 9-3903 – Certificate of Rental Suitability
You can look up your building’s license status and open violations through the city’s public databases. If a rent increase arrives while the license has lapsed or violations are unresolved, the increase is on weak ground.
Retaliatory and Unconscionable Increases
The Fair Housing Commission can review increases that look like retaliation or that are unconscionable given the condition of the unit. The familiar pattern: you report a serious repair problem, and a notice doubling the rent follows a week later. The Commission can intervene.
The unconscionability analysis weighs the size of the increase against the actual state of the property. A sharp hike on a unit with no heat, persistent leaks, or other serious deficiencies can be treated as a tool for pushing a tenant out rather than a legitimate market move, and the Commission can block it.
Pennsylvania has no broad statewide anti-retaliation statute for tenants; statewide protections are narrow, such as the ban on penalizing tenants for joining a tenants’ association.4Pennsylvania Attorney General. Consumer Guide to Tenant and Landlord Rights Philadelphia’s local ordinance covers much more ground. Retaliatory increases fall within the unfair rental practices listed in Section 9-804.1Philadelphia Code. Philadelphia Code 9-804 – Unfair Rental Practices
How To Challenge a Rent Increase
If you think an increase violates any of the rules above, you can file a complaint with the Philadelphia Fair Housing Commission. Pull your documents together first: the lease, the increase notice, and any written communication showing you requested repairs or otherwise exercised a tenant right.
Submit an intake form online, by mail, by email, or by fax. The Commission can be reached at (215) 686-4670 or fairhousingcomm@phila.gov, at 601 Walnut St., Suite 300 South, Philadelphia, PA 19106.5City of Philadelphia. File a Complaint About Unfair Rental Practices
Once the complaint is accepted, both sides receive a hearing notice. Hearings currently take place online, with evidence and testimony from each party before the commissioners decide whether an unfair rental practice occurred. If the landlord files for eviction after you complain, contact the Commission right away and send a copy of the court notice.5City of Philadelphia. File a Complaint About Unfair Rental Practices
Check Your Security Deposit After the Increase
A rent increase can push your security deposit over the legal cap. Pennsylvania limits deposits to two months’ rent during the first year of a lease. Starting in the second year and for any renewal, the cap drops to one month’s rent.6New York Codes, Rules and Regulations. Pennsylvania Statutes 68 P.S. 250.511a – Escrow Funds Limited
If you have been in the unit more than a year and the rent goes up, the landlord can adjust the deposit to match, but only up to one month of the new rent. If they already hold more than that, they owe you the difference. This gets overlooked often enough that it is worth running the numbers yourself after any increase.
What Changes on November 1, 2026
Philadelphia City Council passed Ordinance 250330-AA in April 2026, with an effective date of November 1, 2026. It does not create rent control. It does change what happens when you turn down a proposed increase.7City of Philadelphia. File 250330-AA – Ordinance Amending Chapter 9-800
Under the new rule, a tenant’s refusal of a proposed increase counts as “good cause” for the landlord to end the tenancy only when all three of the following are true:
- The landlord included the proposed increase in the required written notice and gave you the option to accept it.
- You had until 15 days before the current lease expires to accept in writing; no response by that deadline is treated as a refusal.
- The landlord genuinely intends to charge the new rate to the next tenant, rather than using the increase as a pretext to force you out.
If any of the three is missing, your refusal is not grounds for the landlord to end the tenancy. For long-term tenants facing an unrealistic hike designed to clear them out, that is a real safeguard.1Philadelphia Code. Philadelphia Code 9-804 – Unfair Rental Practices
If You Live in Subsidized Housing
The rules above cover market-rate apartments. Subsidized and income-restricted units follow different limits depending on the program. Low-Income Housing Tax Credit (LIHTC) properties have a maximum rent tied to your area median income tier. Section 8 Housing Choice Voucher landlords need housing authority approval and a “rent reasonableness” review before raising rent. Philadelphia Housing Authority public housing rent is generally set as a percentage of household income, so it tracks your earnings rather than a landlord’s choice. If you live in any income-restricted unit and the increase looks wrong, contact the Philadelphia Housing Authority or your property manager to confirm the number complies with program rules.