State tax filing

To estimate  state withholding amounts when filing for two states, first determine each state's tax rates and rules for non-residents or part-year residents. Calculate your total income and allocate it based on the time spent or the source of income in each state. Use the appropriate withholding tables or calculators provided by each state’s tax authority to estimate the withholding amounts. Ensure that you also consider any credits for taxes paid to the other state to avoid double taxation.