No Tax on Overtime for Union Workers in 2026: How the OBBBA Deduction Works with CBA Rates
Union workers in construction, manufacturing, trades, and public service are among the biggest beneficiaries of the OBBBA overtime deduction (IRC §225). Most union hourly workers are FLSA non-exempt, earn significant overtime during peak seasons, and many CBAs specify overtime rates above the FLSA minimum of time-and-a-half. This guide explains how the deduction interacts with Collective Bargaining Agreement overtime provisions.
Why Union Workers Are Well-Positioned for This Deduction
Three factors make union workers particularly strong candidates:
- FLSA non-exempt status: Most union hourly workers in construction (IBEW, UA, Ironworkers, Laborers), manufacturing (UAW, USW, IAM), and trades are classified as non-exempt. They earn FLSA-mandated overtime.
- High overtime hours: Construction and manufacturing industries are cyclical. During peak periods, 50-60+ hour weeks are common, generating substantial overtime premium.
- CBA premium rates: Many CBAs specify double-time (2.0x) for Sundays, holidays, or hours beyond a daily threshold (e.g., after 10 hours). Higher premiums mean more deductible income per hour.
How CBA Overtime Rates Affect the Deduction
The OBBBA deduction covers the premium portion only – the amount above the regular hourly rate. Union CBAs often create multiple tiers of overtime, each with a different deductible premium:
| CBA Overtime Tier | Rate (at $40/hr base) | Deductible Premium per Hour |
|---|---|---|
| Time-and-a-half (1.5x) | $60.00/hr | $20.00 |
| Double-time (2.0x) | $80.00/hr | $40.00 |
| Triple-time (3.0x) – rare, some CBAs | $120.00/hr | $80.00 |
Key insight: A union electrician earning double-time on Sundays generates twice the deductible premium per hour compared to time-and-a-half. This means they reach the $12,500 cap in fewer overtime hours but extract more tax savings per hour worked.
The Premium-Only Rule in Practice
Understanding what counts as "premium" is critical for union workers:
- Overtime premium: The amount above regular rate for hours over 40/week – DEDUCTIBLE
- Shift differential: Extra pay for night/swing shifts – NOT deductible (not overtime)
- Holiday premium: Extra pay for working holidays – only deductible if the hours are also overtime hours (over 40 in the week)
- Per diem / travel pay: Reimbursement for travel – NOT deductible
- Hazard pay: Extra for dangerous conditions – NOT deductible
Worked Examples
Example 1: IBEW Electrician – mixed time-and-a-half and double-time (CBA rates)
Week: 40 regular hrs + 8 hrs OT at 1.5x + 8 hrs Sunday at 2.0x
Time-and-a-half premium: 8 hrs × $24.00 = $192/week
Double-time premium: 8 hrs × $48.00 = $384/week
Total weekly premium: $576
Annual premium (40 peak weeks): $576 × 40 = $23,040
This exceeds the $12,500 annual cap (single filer).
Federal deduction: $12,500 (capped)
Estimated federal savings (22% bracket): $2,750.00
If MFJ, deduction rises to $23,040 (under $25,000 cap):
Estimated MFJ federal savings: $5,068.80
Example 2: UAW Auto Worker – steady time-and-a-half overtime
Week: 40 regular hrs + 10 hrs OT at 1.5x
Time-and-a-half premium: 10 hrs × $16.00 = $160/week
Annual premium (48 weeks): $160 × 48 = $7,680
Federal deduction: $7,680 (under $12,500 cap)
Estimated federal savings (12% bracket): $921.60
Davis-Bacon and Prevailing Wage Interactions
Union workers on government-funded construction projects earn Davis-Bacon prevailing wage rates, which are often significantly higher than open-shop market rates. This has two effects on the overtime deduction:
- Larger premium per hour: A higher regular rate means a larger 0.5x premium. At a $55/hr prevailing wage, the time-and-a-half premium is $27.50/hr vs. $12.50/hr at a $25/hr rate.
- Faster cap approach: The $12,500 cap is reached in fewer overtime hours. At $27.50/hr premium, the cap is hit in approximately 455 overtime hours (single filer).
Fringe benefit note: Davis-Bacon fringe benefits (health insurance, pension contributions, apprenticeship training) are not part of the overtime premium calculation. Only the cash wage portion counts.
What Your Union Should Know
Union representatives and stewards can help members maximize this deduction by:
- Reviewing CBA language to ensure overtime premium calculations are clearly defined for W-2 Code TT reporting
- Working with signatory employers to verify payroll systems correctly separate the premium portion from straight-time wages during overtime hours
- Educating members during tax season – many union workers don't know this deduction exists or assume all overtime pay is deductible (it's premium-only)
- Negotiating CBA provisions that explicitly define how overtime premium is calculated for federal tax deduction purposes
Related Tools and State Pages
- No Tax on Overtime Calculator – calculate your federal overtime deduction
- W-2 Code TT: Overtime Reporting Guide – how to read your W-2
- State Overtime Tax Guide – does your state conform?
- Overtime Tax for Truck Drivers – FLSA motor carrier exemption
- Overtime Tax for Firefighters – FLSA 7(k) rules