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"If the $75/ month is used for the commuter highway vehicle, transit passes or qualified parking it would not be taxable and you would not need to include it on your return."

why wouldn't you included it in the tax return?  is it because it's already been listed in the W4 form or something?

likewise, if i use my car for customer visits from work place but company reimburse me for the mileage, could i claim it as a deduction?  cuz when i get reimbursed in my check, it's also taxed i believe.