I understand how to calculate wages to be taxed in DE and PA. When filing a DE non-resident income tax, to reduce the income to be taxed in DE, per DE income tax requirements, you are required to fill out Schedule W to complete the calculation as well as to explicitly document each working day you worked outside of DE and the reason (cannot be for convenience to work from home). This must be included in your income tax submission to document the difference of wages on your W-2 versus what you are submitting for your taxes.
I can do as you describe above but you do not get at Schedule W which is required for DE tax requirements. Aftter posting the above, I called Turbo Tax support which confirmed that DE Non-resident form on TurboTax does not have the Schedule W. Without that form the software is useless. As only in the office two days per week (required to work from home as the employer does not have sufficient office space), only 40% of the income is taxed in Delaware. While your proposed solution calculates the proper tax, it does not provide the proper documentation required for the state of Delaware for non-resident income tax.
