On the client's paystub they have 3 types of overtime:

1. Overtime Pay (which seems to be the 1.5 pay)

2. Double Pay

3. Overtime - F

I have had other clients with Box 14 with OT already calculated which has been very small $ amounts similar to "Overtime - F" on the client mentioned above. Using #1 and #2 above yields very different results (much more refund). 

Can you explain which of these #s above to use to determine the OT deduction? #3 is the entry confusing me since the IRS site states FLSA is deductible and that's what "Overtime - F" represents.