itable ▁and ▁educational ▁institutions ▁and ▁government ▁property . ▁Additionally , ▁service ▁related , ▁disabled ▁US ▁military ▁veter ans ▁may ▁seek ▁an ▁exem ption ▁from ▁pay ing ▁property ▁tax es . ▁Pennsylvania ▁school ▁district ▁reven ues ▁are ▁domin ated ▁by ▁two ▁main ▁sources : ▁ 1 ) ▁Property ▁tax ▁collections , ▁which ▁account ▁for ▁the ▁vast ▁majority ▁( between ▁ 7 5 - 8 5 %) ▁of ▁local ▁reven ues ; ▁and ▁ 2 ) ▁Act ▁ 5 1 1 ▁tax ▁collections , ▁which ▁are ▁around ▁ 1 5 % ▁of ▁reven ues ▁for ▁school ▁districts . ▁When ▁the ▁school ▁district ▁includes ▁municipal ities ▁in ▁two ▁count ies , ▁each ▁of ▁which ▁has ▁different ▁rates ▁of ▁property ▁tax ▁assess ment , ▁a ▁state ▁board ▁equal izes ▁the ▁tax ▁rates ▁between ▁the ▁count ies . ▁In ▁ 2 0 1 0 , ▁mis calcul ations ▁by ▁the ▁State ▁Tax ▁Equ al ization ▁Board ▁( ST EB ) ▁were ▁w ides p read ▁in ▁the ▁Commonwealth ▁and ▁advers ely ▁impact ed ▁fund ing ▁for ▁many ▁school ▁districts , ▁including ▁those ▁that ▁did ▁not ▁cross ▁county ▁borders . ▁▁ 2 0 1 1 - 1 2 ▁- ▁ 1 7 . 2 7 0 0 ▁mill s . ▁▁ 2 0 1 0 - 1 1 ▁- ▁ 1 7 . 2 7 0 0 ▁mill s ▁▁ 2 0 0 9 - 1 0 ▁- ▁ 1 7 . 2 7 0 0 ▁mill s . ▁ 2 0 0 8 - 0 9 ▁- ▁