9 Pennsylvania Will Requirements That Can Void Your Estate

Pennsylvania law under 20 Pa. C.S. § 2501 sets the minimum age for making a valid will at 18 years old. There is one narrow exception: a married person under 18 may execute a valid will. That exception is rarely relevant, but worth knowing if you're dealing with a blended or young family situation.

"Sound mind" — the legal standard is testamentary capacity — means the person knew they were making a will, understood what property they owned, knew who their natural heirs were, and understood how the will distributed that property. This is not the same as general mental competence. A person with early-stage dementia may still have testamentary capacity on the day they sign.

Here is what most articles don't tell you: capacity is evaluated at the moment of signing, not before or after. Every time I've seen a will contest drag through probate court, it's because no one documented the testator's condition on the signing date — no physician letter, no notary notation, nothing. A two-sentence statement from a doctor written the same week as the signing can shut down a capacity challenge before it starts.

For a formal (attested) will — meaning typed or printed — Pennsylvania requires the signature of two competent adult witnesses. Both must be present when the testator signs, or must watch the testator acknowledge a prior signature. Miss this, and the will is void. Full stop.

A common scenario: a woman in Lancaster printed a will from an online template, signed it alone at her kitchen table, then had two neighbors sign it the following week without her present. The will was challenged after her death and ultimately rejected by the Register of Wills. Her estate passed under intestacy — exactly contrary to her documented wishes.

Worth knowing: Pennsylvania does not require witnesses to read or even understand the will. They only need to witness the signature or acknowledgment. But they must sign within a reasonable time of the testator's execution, and ideally on the same occasion.

Pennsylvania is one of roughly 25 states that recognize holographic wills: a will entirely in the testator's own handwriting, signed by the testator. No witnesses required. No notary required. This is a significant exception to the formal requirements — and a significant source of confusion.

The operative word is entirely. A typed template with handwritten fill-ins does not qualify as holographic. The moment a preprinted form enters the picture, you need the two-witness formality. Courts have invalidated wills where the testator handwrote substantive provisions but used a printed date line or letterhead.

Honestly, the holographic option is best used as a last resort — a hospital bedside scenario where formal execution is impossible. For anything with meaningful assets, a properly witnessed typed will drafted by an attorney is far harder to contest. The holographic route invites disputes about handwriting authenticity and intent that can cost the estate far more than the attorney's fee would have.

Pennsylvania requires the testator's signature at the end of the will. A mark or initials can substitute if the testator cannot sign their full name — but that substitution needs to be properly documented in context. Courts have accepted an "X" mark, but only when surrounding evidence confirmed intent.

Witnesses must also sign. But here's the non-obvious layer: Pennsylvania does not disqualify a witness simply because they are also a beneficiary under the will. Some states do. Pennsylvania doesn't — but an interested witness can create credibility problems if the will is contested, and in some cases older Pennsylvania case law applied a "purging" doctrine that stripped a beneficiary-witness of their bequest. The statutory landscape has evolved, but the safest practice is still to use disinterested witnesses.

Directed signing — where someone signs on behalf of the testator at the testator's direction and in their presence — is permitted. This matters for testators with physical disabilities. The person signing must sign their own name (not the testator's name) and the direction must be explicit and contemporaneous.

Pennsylvania does not require a will to be notarized to be valid. A common misconception is that a notary stamp equals legal validity. It doesn't, on its own. What notarization does do is create a self-proving affidavit when attached to the will, which means the witnesses don't have to appear in probate court to verify their signatures.

Without self-proving status, the Register of Wills may need to locate witnesses — sometimes years or decades after signing — to authenticate the will. If witnesses have died or moved, probate can stall significantly. A self-proving affidavit eliminates that friction entirely.

Cost to add: negligible. Most estate attorneys include a self-proving affidavit automatically. If you're using an online service or drafting your own will, this is the step most people skip — and the one they wish they hadn't.

A will can be revoked in Pennsylvania by physical act (burning, tearing, destroying), by a subsequent written instrument that expressly revokes it, or by a later will that is inconsistent with the earlier one. What many people don't realize: marriage does not automatically revoke a prior will in Pennsylvania.

Divorce is different. Under Pennsylvania law, divorce automatically revokes any provision in a will that benefits a former spouse — but only once the divorce decree is final. Separation alone does nothing. A man who separates from his wife, never updates his will, and dies before the divorce is finalized leaves his entire estate to the spouse he was separated from. This happens more often than it should.

Quick note: partial revocation by physical act is also recognized. Crossing out a specific bequest with clear intent can revoke that provision without affecting the rest of the will — but this invites interpretation disputes. A new will or codicil is always cleaner.

Pennsylvania's pretermitted heir statute protects children (and sometimes other descendants) who were born or adopted after the will was executed and were not intentionally omitted. If the testator didn't know about a child — or the child simply didn't exist yet — that child may have a statutory claim to a share of the estate regardless of what the will says.

The share depends on what other children receive under the will. This is estate law at its most fact-specific, and the outcomes vary considerably by family structure. The point is: a will written before you had children is not necessarily adequate after you do.

Every client who came to me after realizing this had the same story — they'd written a will in their 30s, had two more kids, and assumed the will still covered their family. It didn't, not cleanly. Update your will after every major life event. That's not generic advice; it's the specific instruction this statute demands.

Pennsylvania gives a surviving spouse the right to claim an elective share of the decedent's estate — currently one-third of the net estate — regardless of what the will says. You cannot disinherit a spouse through your will alone. The spouse must affirmatively elect to take this share, usually within six months of the appointment of the personal representative.

This matters in second-marriage situations, estranged-spouse scenarios, and estates where one spouse built significant assets independently. A testator who leaves everything to children from a first marriage may find that the surviving second spouse can legally claim a third of the estate, upsetting the entire plan.

The only reliable way around the elective share is a valid prenuptial or postnuptial agreement in which the spouse waives that right. That requires full disclosure of assets and, practically speaking, independent legal counsel for both parties. Without it, the elective share is a floor you cannot design below.

Pennsylvania probate is handled by the Register of Wills in the county where the decedent was domiciled. Filing fees are modest — typically $50–$200 for the initial petition, plus a percentage-based fee on estate value that varies by county. Northampton and Allegheny counties, for example, use slightly different fee schedules than Philadelphia.

Simple estates with a valid, uncontested will often close in nine to twelve months. Contested wills or complex estates can run two to four years. Attorney fees for estate administration typically range from $1,500 for a simple estate to $10,000+ for anything with real property, business interests, or family conflict.

Assets that pass outside of probate — jointly held property, IRAs with named beneficiaries, life insurance payable to a named beneficiary, payable-on-death accounts — are not affected by the will at all. This is the most important structural point in Pennsylvania estate planning: the will only controls probate assets. A well-designed estate uses beneficiary designations strategically to minimize what goes through probate in the first place.