DE state

[nph]

Why does my DE tax form include all our earnings. We lived in NJ from January to November. We should only pay DE for December wages. Correct? Turbo Tax isn't calculating correct. NJ part looks fine.

[MaryK4]

Part-year residents first calculate tax on total taxable in-come from all sources, the same as full-year residents. Tax is then prorated based on a ratio of modified Delaware-source income to Delaware AGI (from all sources).  Delaware uses all income to determine the tax rate, then applies that tax rate to the Delaware income only.