43 Pa. Stat. § 260.10
Where wages remain unpaid for thirty days beyond the regularly scheduled payday, or, in the case where no regularly scheduled payday is applicable, for sixty days beyond the filing by the employe of a proper claim or for sixty days beyond the date of the agreement, award or other act making wages payable, or where shortages in the wage payments made exceed five percent (5%) of the gross wages payable on any two regularly scheduled paydays in the same calendar quarter, and no good faith contest or dispute of any wage claim including the good faith assertion of a right of set-off or counter-claim exists accounting for such non-payment, the employe shall be entitled to claim, in addition, as liquidated damages an amount equal to twenty-five percent (25%) of the total amount of wages due, or five hundred dollars ($500), whichever is greater.
43 P.S. § 260.10