Travis Bunn
Founder, AppealDesk · Published August 19, 2026
Start your Pennsylvania appeal: Philadelphia County · Delaware County · Montgomery County · Allegheny County
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Updated August 2026
Pennsylvania counties run on a base-year assessment system: a property's assessed value is set at whatever it was during the county's last general reassessment and stays there, sometimes for decades, until a specific trigger occurs, a countywide reassessment, new construction, demolition, a subdivision, or a taxpayer appeal. A change of ownership, sale or inheritance, is not on that list. What actually costs Pennsylvania heirs money on a fixed schedule is the state Inheritance Tax, a real tax due within nine months of death, on a rate that depends entirely on the relationship between the beneficiary and the person who died.
Because Pennsylvania has no statewide requirement for how often a county must reassess, the gap between a property's frozen base-year value and its actual current market value can be extreme. Westmoreland County has not conducted a full countywide reassessment since 1972. Other counties, like Lancaster, run active, current reassessment cycles. There is no single answer for when your county last reassessed, and inheriting a property does nothing to change whichever schedule your specific county happens to be on.
This has a practical upside worth flagging honestly: an heir on a decades-stale base-year assessment could actually be overpaying relative to what current comparable sales would suggest, since the county's number was frozen years or decades ago and never adjusted downward. The fix for that is an appeal, covered below, not something that happens automatically just because the property changed hands.
One quiet confirmation that inheritance is genuinely invisible to Pennsylvania's tax machinery: the deed itself is exempt from the state's 1% Realty Transfer Tax when property passes by will or intestate succession from a personal representative to a decedent's devisee or heir. The one transfer tax that does apply to most real estate deals simply does not apply to this one.
Pennsylvania is one of a small number of states that still taxes beneficiaries directly, at rates set by relationship:
Property owned jointly between spouses is entirely exempt. The tax becomes delinquent nine months after death, and paying within three months of death earns a 5% discount, a real incentive to move quickly rather than wait out the full window. We saw references to proposed legislation that would phase down the 12% sibling rate and the 15% other-heirs rate over several years, but the Department of Revenue's own current rate table still lists both flat, with no phase-in in effect. Confirm the live rate on the Department's own page before relying on anything different.
Two exemptions created by Act 85 of 2012 can eliminate the inheritance tax on real estate used in agriculture or a family business, but both require years of follow-through, not just a one-time filing. Agricultural-use, conservation-easement, and forest-reserve land of 10 or more acres, transferred to lineal descendants or siblings, qualifies with no ongoing certification. A broader family-agriculture-business exemption, open to a wider family circle including aunts, uncles, and their spouses, requires continued agricultural use for seven years after death, at least $2,000 of gross income from the business each of those years, and an annual certification filed with the Department every February 15. A small or family-owned business exemption, added in 2013, similarly requires the business to have fewer than 50 full-time-equivalent employees, under $5,000,000 in net book value, at least five years of prior existence, and the same seven-year continued-ownership and annual-certification requirements.
The recapture rule is unforgiving on all of these: if agricultural use lapses, income falls under the threshold in any single year, or a certification is missed at any point during the seven years, the exemption is clawed back entirely, tax computed on the date-of-death fair market value, plus interest. This is not a set-it-and-forget-it exemption.
Enter the address and see it compared against real comparable sales nearby. Takes 30 seconds.
Because a Pennsylvania assessed value can be years or decades out of date, the raw number on the tax bill is not directly comparable to a current sale price. The state annually publishes a Common Level Ratio for each county, computed from actual arm's-length sales versus assessed values, that converts a stale base-year number into an implied current value. If a county's current ratio has drifted meaningfully from the predetermined ratio it uses day to day, an appeal can apply the more current common level ratio instead. For an heir working from a base-year assessment that may be decades old, this conversion, not the sticker figure on the notice, is the right way to judge whether the number is actually too high.
Appeal deadlines are set by each county individually and genuinely vary. Philadelphia's deadline for a 2027 tax year market-value appeal is October 5, 2026. Many other counties commonly run closer to an August 1 date, but confirm your specific county's current deadline directly rather than assuming a single statewide date applies, Philadelphia alone shows how much the calendar can differ.
When siblings inherit a property together and later divide it in kind, that division among the original cotenant heirs is excluded from the Realty Transfer Tax. But if the split later gives one heir more than their proportional undivided share, say one sibling buys out the others, the excess amount transferred beyond that proportional share becomes taxable. This is the exact pattern that catches families who split an inherited house and then have one sibling buy the rest out without realizing the buyout itself is a distinct, partially taxable transfer.
A Pennsylvania-specific packet using the Common Level Ratio, comparable sales, and your county's current deadline.
The mistake most Pennsylvania heirs make is treating this like a property tax problem when it is really an inheritance tax problem with a hard, fast clock. The nine-month inheritance tax deadline, and the three-month discount window before it, matter far more immediately than the base-year assessment, which will likely sit untouched for years regardless of who owns the house. Handle the inheritance tax on schedule, and treat the property assessment as its own separate question you can look into, and appeal, whenever you actually get around to it.
No. Pennsylvania counties use a base-year system where assessed value stays frozen until a specific trigger, a countywide reassessment, new construction, or an appeal, occurs. A change of ownership, whether by sale or inheritance, is not one of those triggers.
It depends entirely on your relationship to the person who died: 0% for a surviving spouse, 4.5% for children and other direct descendants, 12% for siblings, and 15% for everyone else. The tax is due within nine months of death, with a 5% discount available if paid within the first three months.
Not automatically, and not permanently. The exemption requires filing on a timely inheritance tax return, continued agricultural or business use for seven years, a minimum income threshold each of those years for the family-business version, and an annual certification due every February 15. Missing any requirement in any year triggers recapture, tax on the full date-of-death value plus interest.
Use the Common Level Ratio, published annually by the state for each county, to convert the stale assessed value into an implied current market value before comparing it to actual recent sales. The raw assessed value alone isn't a fair comparison point in a county that hasn't reassessed in years.
No. Deadlines are set county by county. Philadelphia's deadline for a 2027 tax year appeal is October 5, 2026, while many other counties commonly use dates closer to August 1. Confirm the current deadline with your specific county rather than assuming a single statewide date.