Schedule1ADesk / 2026 Tax & Payroll Guides / Local & Intrastate Truck Driver FLSA Overtime vs. MCA Exemption (Code TT)
Local & Intrastate Truck Driver FLSA Overtime vs. MCA Exemption (Code TT)
How much is the 2026 overtime tax deduction for Commercial Driver?
At $31/hour working 15 FLSA overtime hours per week for 50 weeks, your gross 1.5x overtime pay is $34,875, and your qualified 0.5x half-time overtime premium (reported in 2026 Form W-2 Box 12, Code TT) is $11,625, saving roughly $2,558 in federal tax.
Under Public Law 119-21 (IRS Schedule 1-A, Part III), the 2026 "No Tax on Overtime" deduction applies strictly to the FLSA-required 0.5x half-time premium portion of time-and-a-half pay for hours worked over 40 in a workweek. For 2026, your employer must report this exact 0.5x amount in Form W-2, Box 12, Code TT.
Open Pre-Filled $31/hr (15 OT Hrs/Wk) Schedule 1-A PDF Worksheet
2026 Paystub-to-W-2 Box 12 Code TT Breakdown (Commercial Driver)
| Overtime Pay Component | Weekly Amount (15 OT Hrs) | Annual Amount (50 Weeks) | 2026 Tax Treatment |
|---|---|---|---|
| Regular Base Rate (1.0x Straight-Time Portion) | $465 ($31/hr x 15h) | $23,250 | Taxed as normal W-2 Box 1 wages (Excluded from Code TT) |
| FLSA Half-Time Premium (0.5x Multiplier) | $232.5 ($15.50/hr x 15h) | $11,625 | Reported in W-2 Box 12 Code TT · Deductible on Schedule 1-A |
| Total Time-and-a-Half Overtime Pay (1.5x) | $698 ($46.50/hr x 15h) | $34,875 | Subject to normal 7.65% FICA (Social Security & Medicare) |
| Allowed Schedule 1-A Part III Deduction | N/A | $11,625 (Single Cap $12,500 / MFJ $25,000) | Saves ~$2,558/yr in the 22% federal bracket |
Frequently Asked Questions
Why is my W-2 Box 12 Code TT only one-third of my total 1.5x overtime pay at $31/hour?
Because the federal FLSA overtime deduction only exempts the 0.5x half-time premium ($15.50/hr) above your regular $31/hr base wage, which equals exactly one-third of your $46.50/hr time-and-a-half pay.
What is the maximum 2026 Schedule 1-A overtime deduction cap?
The maximum deduction is $12,500 for Single and Head of Household filers, and $25,000 for Married Filing Jointly, phasing out above $150,000 ($300,000 MFJ) MAGI.