Philadelphia's ten-year tax abatement gets mentioned on almost every new listing in Center City, usually as a selling point with no further explanation. That's a problem, because the abatement stopped being one program back in 2022. Today there are effectively two versions running side by side in the same buildings, on the same blocks, sometimes in the same condo association, and which one a specific unit has can change what you actually pay in property taxes for the next decade.
The short version: whether your abatement holds steady or shrinks every year depends on two things nobody puts in the listing description. First, was the unit built from the ground up or converted from an existing structure? Second, when was the building permit filed? Get those two answers before you compare price tags on two Center City units, because the sticker price can be identical while the real cost of ownership is not.
Two Buildings, Two Very Different Ten Years
Before 2022, Philadelphia's abatement worked the same way for everyone. New construction and substantial rehabs both got a flat 100 percent exemption on the added value of the improvement for a full ten years, under what's now referred to as Ordinance 961. You paid taxes on the land. You paid nothing on the building for a decade. Then the clock ran out and full taxes kicked in all at once.
City Council changed that specifically for new residential construction on vacant land, phasing in a declining schedule (Ordinance 1456-A) for any project that filed its building permit on or after January 1, 2022. Instead of a flat exemption, the abated share of the improvement value starts at 100 percent and steps down ten percentage points every year:
| Year | Abated Share of Improvement Value |
|---|---|
| 1 | 100% |
| 2 | 90% |
| 3 | 80% |
| 4 | 70% |
| 5 | 60% |
| 6 | 50% |
| 7 | 40% |
| 8 | 30% |
| 9 | 20% |
| 10 | 10% |
That schedule comes straight from the city's own abatement application. By year five you're already paying real estate tax on 40 percent of your unit's assessed improvement value. By year ten you're paying on 90 percent of it, and the abatement effectively disappears the following year.
Here's the part that gets skipped in most conversations about this: the decline applies to new construction. Rehabilitated and converted properties, meaning existing buildings substantially renovated rather than built from scratch, still qualify for the old flat 100 percent abatement for the full ten years, regardless of when the permit was filed. That distinction matters more in Center City than almost anywhere else in the city.
Why So Many Center City Buildings Are Still on the Old Schedule
Center City has spent the last several years converting a meaningful amount of former office space into housing, a trend driven by work-from-home reducing demand for office towers. According to Center City District data reported by WHYY, of roughly 10,000 housing units completed citywide between January 2025 and June 2026, 40 percent were in greater Center City. Production in the area hit a recent peak in 2024, with 3,811 units completed, a surge WHYY attributed to developers rushing to start projects under the old abatement before the 2022 reduction took effect.
Put those two facts together and you get a Center City housing stock with a real split in it. A ground-up tower permitted in 2023 is already several steps down the declining schedule. An office building converted into condos, even one that opened its doors more recently, may still be riding the full flat abatement because a rehab isn't subject to the new construction rules at all. The building that looks older or less flashy on a listing photo can be the one with the better tax position for the next several years.
This is worth checking before you assume newer means better. A high-rise or boutique condo built on formerly vacant land after 2022 and a converted pre-war office building a few blocks away can list at the same price and carry very different real carrying costs for the next decade.
What the Gap Is Actually Worth
The math depends on the unit's assessed improvement value, but the pattern holds across price points. A property with several years remaining on a flat 100 percent abatement is worth more, all else equal, than a comparable property a few years into a declining schedule, because the owner is deferring real dollars in property tax rather than a percentage that's already eroding.
Using Philadelphia's current real estate tax rate of roughly 1.3998 percent as of 2026, the tax owed on the non-abated portion of an improvement's value grows every year under the declining schedule, while it stays at zero under the flat schedule until the term ends all at once. Industry analysis of typical Philadelphia properties has put the present-value difference between a fresh flat abatement and a comparable declining one in the range of $30,000 to $60,000 over the remaining term. That's not a rounding error on a condo purchase. It's a number worth asking about before you write an offer.
The abatement also never covers land value, only the improvement, which matters more in a dense downtown market where land carries a larger share of a unit's assessed value than it would in a rowhouse neighborhood further from Center City.
The Other Number That Changed in 2025
Abatement status isn't the only line item that shifted recently. On July 1, 2025, Philadelphia's realty transfer tax rose to a combined 4.578 percent, up from 4.278 percent, after City Council passed Bill No. 250211 as part of Mayor Cherelle Parker's H.O.M.E. initiative to fund an $800 million affordable housing bond. That's 3.578 percent to the city and 1 percent to the Commonwealth, due at closing regardless of whether the property has an abatement at all.
On a $300,000 sale, the total transfer tax comes to $13,734. Split the customary way, that's roughly $6,867 on each side of the table. Scale that to a typical Center City condo price and the number moves accordingly, since the tax is calculated as a straight percentage of sale price. It's a cost that applies on top of whatever the abatement situation looks like, and it's easy to underestimate if you're budgeting off an older rate you found in an outdated guide.
Before You Compare Two Listings, Ask These Three Things
- New construction or a rehab/conversion? This determines whether the unit is even eligible for the declining schedule, or whether it keeps the flat exemption regardless of permit date.
- What's the building permit issue date? Before January 1, 2022 generally means the flat schedule for new construction. On or after that date means the decline started immediately.
- What does the Office of Property Assessment record show? You can search any Philadelphia address directly on the city's property assessment atlas to see the abatement type, the year it started, and the year it's scheduled to end. The listing agent's summary is a starting point, not the final word.
If you're buying a unit with a partial abatement already in progress, the remaining years transfer with the property. You pick up wherever the previous owner left off rather than starting the clock over, which is one more reason the specific years remaining matter more than the word "abated" on its own.
One More Thing Worth Watching
State legislation passed in late 2025 gave Philadelphia the authority to create a new, separate abatement of up to 20 years specifically for converting large underused commercial or industrial buildings into housing in areas defined as deteriorating. As of City Council's return to session in January 2026, this program existed as pending legislation the administration was still drafting, not yet in effect. If it moves forward, it could reshape the economics of exactly the kind of office-to-residential conversions that have already reshaped Center City's skyline. It's a program worth asking about if you're eyeing a building that fits that description, since the rules could look different in a year than they do today.
Common Questions
Does the abatement type affect resale value? It can. A property with several years of flat 100 percent abatement remaining carries lower near-term carrying costs than a comparable unit deeper into a declining schedule, which is the kind of detail that shows up in serious buyer due diligence even if it doesn't show up in the listing photos.
Is the abatement automatic, or do I have to apply for it? For most qualifying new construction and rehab projects, the Office of Property Assessment applies it once the permit closes and the certificate of completion is filed. There's no separate application a homeowner needs to submit after that point.
Where do I find the exact numbers for a specific address? The city's Office of Property Assessment page explains the full abatement program rules, and the realty transfer tax page covers current rates and exemptions. Both are the source documents worth checking before you rely on a secondhand summary, including this one.
Comparing two Center City units on price alone leaves out exactly the kind of detail that determines what you'll actually pay over the next ten years. If you're weighing a purchase or thinking about what your own Center City property's abatement position looks like heading into a sale, Steven Piacquadio can walk through the specific permit history and numbers with you. Request a Free Market Valuation to start that conversation.
