Schedule1ADesk / 2026 Tax & Payroll Guides / 2026 Form W-2 Box 12 Codes Complete Guide (New Codes TT, TP, TA + All A-II Codes)
2026 Form W-2 Box 12 Codes Complete Guide (New Codes TT, TP, TA + All A-II Codes)
What do all the 2026 Form W-2 Box 12 codes mean, including new Code TT (Overtime) and Code TP (Tips)?
For the 2026 tax year, the IRS added three major Box 12 codes under Public Law 119-21: Code TT (Qualified FLSA 0.5x Overtime Compensation, deductible up to $12,500/$25,000 on Schedule 1-A Part III), Code TP (Qualified Tips, deductible up to $25,000 on Schedule 1-A Part II alongside Box 14b TTOC), and Code TA (Employer Trump Account Contributions). These join standard Box 12 codes such as Code D (401k), Code DD (Health Coverage Cost), Code W (HSA), and Code S (SIMPLE IRA).
For the 2026 tax year, the IRS added three major Box 12 codes under Public Law 119-21: Code TT (Qualified FLSA 0.5x Overtime Compensation, deductible up to $12,500/$25,000 on Schedule 1-A Part III), Code TP (Qualified Tips, deductible up to $25,000 on Schedule 1-A Part II alongside Box 14b TTOC), and Code TA (Employer Trump Account Contributions). These join standard Box 12 codes such as Code D (401k), Code DD (Health Coverage Cost), Code W (HSA), and Code S (SIMPLE IRA).
Open Interactive 2026 Schedule 1-A & W-2 Box 12 Calculator
2026 Form W-2 Box 12 & Schedule 1-A Reference Table
| W-2 Box / IRS Schedule | 2026 Reporting & Deduction Rule |
|---|---|
| Box 12 Code TT (New for 2026) | Qualified FLSA 0.5x Overtime Premium · Deduct up to $12,500 Single / $25,000 MFJ on Schedule 1-A Part III |
| Box 12 Code TP + Box 14b TTOC (New for 2026) | Qualified Voluntary Tips in 75 TTOC Occupations · Deduct up to $25,000 on Schedule 1-A Part II |
| Box 12 Code D / S / E / G | Pre-tax 401(k), SIMPLE IRA, 403(b), and 457(b) deferrals · Lowers MAGI to prevent Schedule 1-A phase-out |
| Box 12 Code W | Employer + Employee pre-tax HSA contributions · Excluded from Box 1 wages and lowers MAGI |
| Box 12 Code DD | Informational cost of employer-sponsored health coverage · Non-taxable |
| Form 1098-VLI (Schedule 1-A Part IV) | Up to $10,000 deduction for interest on new U.S.-assembled passenger vehicles (VIN starts with 1, 4, 5, or 7) |
| Schedule 1-A Part V (Age 65+ Bonus) | $6,000 per spouse age 65+ ($12,000 joint) · Phases out above $75,000 Single / $150,000 MFJ |
Frequently Asked Questions
What do all the 2026 Form W-2 Box 12 codes mean, including new Code TT (Overtime) and Code TP (Tips)?
For the 2026 tax year, the IRS added three major Box 12 codes under Public Law 119-21: Code TT (Qualified FLSA 0.5x Overtime Compensation, deductible up to $12,500/$25,000 on Schedule 1-A Part III), Code TP (Qualified Tips, deductible up to $25,000 on Schedule 1-A Part II alongside Box 14b TTOC), and Code TA (Employer Trump Account Contributions). These join standard Box 12 codes such as Code D (401k), Code DD (Health Coverage Cost), Code W (HSA), and Code S (SIMPLE IRA).
Do I have to itemize deductions to claim W-2 Box 12 Code TT or Code TP?
No. All four deductions on 2026 IRS Schedule 1-A (Qualified Tips, Qualified Overtime, Auto Loan Interest, and the $6,000 Senior Deduction) are above-the-line deductions available to both Standard Deduction and Itemized filers.