I calculate my flight pay and per diem using the iCrew timecard. Then I wait until the 15th to see how close I am. Deductions are available via your open enrollment confirmation statement. Taxes are a wag. ALPA is 1.9%.

Sometimes I'm within dollars on the flight pay and pennies on the per diem.

Pay statement: Worthless.

PAS: I use it in lieu of a logbook. It also allows you to see how well you know the contract/can hustle vs other pilots as it breaks down soft pay/premium pay ... vs the average.