Thank you.
In the future, once my company starts taking this local tax out, i will also use box 16 for full year calculation / determination on full year local (mult by 1%) and then use box 19 for local tax partial paid. the difference of the full year owed minus the estimated payments made would be what i owe/am refunded,etc. (in the future once my company starts withholding local for me). The box 18 in that case would just be as of when they implemented the local withholding.
