Revenue and taxation; income tax credit; legally married couple; child; effective date.

HB 1359 creates a state income tax credit for legally married couples in Oklahoma with eligible dependent children. The credit amount depends on how long the couple has been continuously married: $500 for 1-5 years, $1,000 for 5-10 years, $1,500 for 11-15 years, and $2,000 for 16+ years of marriage, per child. The credit is capped at $10,000 per household annually, requires pre-application with the Oklahoma Tax Commission, and cannot reduce tax liability below zero. It directly affects married couples with children under 19 who reside with them and meet the marriage duration requirements.