If your employer hasn't paid your final wages, Pennsylvania law gives you specific deadlines and specific penalties — and a properly cited demand letter is how you invoke both. Here is exactly what 43 P.S. §§ 260.5, 260.10 (WPCL) requires, and what it costs your employer to ignore it.

Pennsylvania's final paycheck deadlines at a glance

If you were fired or laid off Next regular payday after separation (43 P.S. § 260.5)
If you quit Same — next regular payday
The penalty for nonpayment After 30 days unpaid: liquidated damages of 25% of wages due or $500, whichever is greater (§ 260.10); mandatory attorney's fees for prevailing employees

The WPCL deadline

Pennsylvania's Wage Payment and Collection Law, 43 P.S. § 260.5, requires your employer to pay all final wages — including earned commissions, bonuses, and any vacation pay promised by policy — by the next regular payday after your separation, whether you quit or were fired. If your employer disputes part of the amount, it must still pay the undisputed portion on time; withholding everything because of a dispute over something is itself a violation.

The 30-day liquidated damages clock

Under § 260.10, wages that remain unpaid 30 days past the regular payday — absent a good-faith contest or dispute — entitle you to liquidated damages of 25% of the total due or $500, whichever is greater. On a $1,800 final paycheck, that's $500 added the moment day 30 passes. The good-faith exception is narrow: the employer needs an actual, articulable dispute, not silence or cash-flow excuses.

Mandatory fee-shifting — one-directional

The WPCL's fee provision is unusually worker-friendly: a prevailing employee's award of attorney's fees is mandatory, while an employer who successfully defends gets nothing. That asymmetry is why Pennsylvania wage claims settle — every week of employer delay grows a bill they will ultimately pay both sides of.

Two tracks, both strengthened by your letter

You can file with the Pennsylvania Department of Labor & Industry's Bureau of Labor Law Compliance (free; the Secretary can add a 10% penalty under § 260.9a) or sue directly within the WPCL's three-year window. A demand letter citing §§ 260.5 and 260.10, with the 25%/$500 exposure and the mandatory-fees asymmetry laid out, makes the cost-benefit obvious before either track begins.

What a strong Pennsylvania demand letter looks like

An effective letter states the exact amount owed and the statutory deadline that was missed, cites 43 P.S. §§ 260.5, 260.10 (WPCL) by name, computes the penalty exposure in dollars, and sets a firm response deadline before escalation. Here's how the opening of a strong one reads:

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Pennsylvania Final Paycheck Demand — Preview
[Your Name] [Your Address] [City, PA ZIP] [Date] [Employer Name] [Employer Address] RE: Demand for Payment of Unpaid Final Wages — Pennsylvania Wage Payment and Collection Law, 43 P.S. §§ 260.5, 260.10 Dear [Employer Name], I am writing to formally demand payment of my unpaid final wages in the amount of $[AMOUNT], earned through my last day of work on [LAST DAY WORKED]. Under 43 P.S. § 260.5, these wages were due no later than the next regular payday following my separation. As of today, [NUMBER] days have passed without payment. Be advised that under § 260.10, wages remaining unpaid for thirty days beyond the regular payday, absent a good-faith dispute, entitle me to liquidated damages of twenty-five percent of the amount due or five hundred dollars, whichever is greater — and that a prevailing employee's attorney's fees are mandatory under the WPCL... Accordingly, demand is hereby made for payment of $[AMOUNT], together with all statutory penalties described above, within ten (10) days of the date of this letter — no later than [RESPONSE DEADLINE]. If payment is not received by that date, I will pursue every remedy available under law — including filing with the appropriate state agency and in small claims court — without further notice. I would prefer to resolve this without litigation — but I am fully prepared to proceed. Govern yourself accordingly, [Your Name]

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This guide is general information about Pennsylvania law, not legal advice. Statutes are paraphrased; verify current law for your situation. For significant or contested claims, consult a licensed Pennsylvania attorney.