The expiration date is a date that applies to per diem rates, which is important when calculating a pilot or flight attendant's M&IE expense.  The expiration date is the last date that CONUS or OCONUS per diem rates are valid.  When a pilot or flight attendant uses EZPerDiem.com Per Diem Calculator ^TM, the effective date, the expiration date, the seasonal start date, and the seasonal end date are all checked against the date of each layover that gets entered.

The per diem rate tables are not always standardized.  EZPerDiem.com uses a computer algorithm to extract that data straight from the government provided per diem tables and make it so pilots and flight attendants simply enter their layovers next to the dates they occured.  Then, EZPerDiem's algorithm can caluclate the entire per diem deduction in seconds, all in accorance with the rules of IRS Publication 463.

Often, the expiration date for per diem rates occurs on October 1st.  That date marks a time called the transition period, which is the last three months of a calendar year.

Help your facebook friends save money by recommending us!

Please refer us