Thirteen states are still owing primary and secondary school teachers, according to the Nigeria Union of Teachers (NUT).
Osun tops the list of debtor states with 28 months, followed by Nasarawa (26 months), and Kogi (25 months).
Others are Benue with 12 months, Ekiti (nine months), Bayelsa (seven and a half months), Taraba (six months), Abia (five months), Kaduna (five), Ondo (four months), Kwara (two months), Delta (two months) while Oyo state is owing one month.
NUT president, Alogba Olukoya, who made this known at the 2018 annual conference of the union, said data is still being collated nationwide on the states still owing salaries to teachers.
After the collation of the data, he warns that the union will declare strike against the affected states.