A Diet na Maris 1467, an sake sunan harajin gargajiya guda biyu;Daga nan aka tara ribar ɗakin a matsayin harajin baitul malin sarki da na talatin a matsayin kwastan na Masarautar.Saboda wannan sauyi, duk keɓewar harajin da aka yi a baya sun zama banza, suna ƙara samun kudaden shiga na jihohi.Matthias ya yi niyya game da daidaita tsarin tafiyar da kudaden shiga na sarauta.Ya ba wa John Ernuszt, wani ɗan kasuwa Bayahude da ya tuba amanar kula da al'adun masarautar sarauta.A cikin shekaru biyu, Ernuszt ne ke da alhakin tattara duk wani haraji na yau da kullun da na ban mamaki, da kuma kula da ma'adinan gishiri.Gyaran harajin Matthias ya haifar da tawaye a Transylvania.Wakilan "Al'ummai Uku" na lardin - masu daraja, Saxon da Székelys - sun kulla kawance da Sarki a Kolozsmonostor (yanzu gundumar Mănăștur a Cluj-Napoca, Romania) a ranar 18 ga Agusta, inda suka bayyana cewa a shirye suke. yaƙi don 'yancin Hungary.Matthias ya tattara sojojinsa nan da nan ya gaggauta zuwa lardin.’Yan tawayen sun mika wuya ba tare da juriya ba amma Matthias ya azabtar da shugabanninsu sosai, da yawa daga cikinsu an rataye su, aka fille kawunansu, ko kuma aka azabtar da su cikin rashin tausayi bisa umarninsa.Da yake zargin Stephen Mai Girma ya goyi bayan tawayen, Matthias ya kai hari Moldavia.Duk da haka, sojojin Stephen sun fatattaki Matthias a yakin Baia a ranar 15 ga Disamba 1467. Matthias ya sami munanan raunuka, wanda ya tilasta masa komawa Hungary.