Payroll setup is full of small switches that create big year-end consequences. Miss one reporting rule, and January turns into a correction project.
For tax year 2026, employers must separately report qualified overtime compensation and cash tips on Form W-2. New Box 12 codes TT and TP affect payroll configuration, employee reporting, year-end reconciliation, and potential Form W-2c corrections.
This article reflects IRS guidance as of October 2026.
The time to prepare is now, during Q4 2026, not after the final payroll of the year.
1. Code TT separates the FLSA overtime premium
Box 12 code TT means “Total amount of qualified overtime compensation.”
Employers must separately report the amount of qualified overtime compensation paid to an employee during 2026. These amounts will appear on tax year 2026 Forms W-2 filed with the Social Security Administration and furnished to employees in early 2027.
Qualified overtime compensation is the amount required under section 7 of the Fair Labor Standards Act, 29 USC 207, that is more than the employee’s regular rate. In practical terms, only the “half” portion of time-and-a-half is qualified overtime compensation.
Use this general per-workweek formula:
FLSA hours worked over 40 × one-half × the employee’s FLSA regular rate of pay
Do not include overtime premiums that are not required by the FLSA. Examples include:
- Extra premiums under a collective bargaining agreement
- Double-time amounts beyond the FLSA-required premium
- Weekend premiums
- Other contractual or discretionary overtime amounts
The IRS General Instructions for Forms W-2 and W-3 provide the controlling reporting instructions.
IRS example: An employee works 50 hours at $20 per hour, and the employer pays double time. The employer pays $400 in overtime, but only $300 is required under the FLSA. The qualified overtime compensation is $100.
The full qualified amount goes into Box 12 code TT, even if it exceeds the employee’s individual deduction limit. For example, if an employer paid $30,000 of qualified overtime compensation in 2026, the full $30,000 is reported with code TT.
The deduction belongs to the employee, not the employer. For tax years beginning after 2024 and ending before 2029, an individual may deduct up to $12,500 of qualified overtime compensation, or $25,000 on a joint return. The deduction is reduced when modified adjusted gross income exceeds $150,000, or $300,000 for a joint return.
State conformity varies. California does not conform to the federal qualified overtime deduction, so California taxpayers must add the deducted amount back on their California return.
Questions about an individual employee’s deduction or eligibility belong to that employee’s tax professional. LunaSi reports payroll data; it does not determine an employee’s deduction.
Employees can only deduct qualified overtime compensation that is separately reported on Form W-2 with code TT.
2. Overtime is still taxable payroll
Code TT does not make overtime pay exempt from payroll taxation.
Qualified overtime compensation remains subject to:
- Federal income tax withholding
- The employer’s share of Social Security tax
- The employee’s share of Social Security tax
- The employer’s share of Medicare tax
- The employee’s share of Medicare tax
Nothing about the new reporting code removes the underlying overtime compensation from payroll taxation.
Withholding requires a separate decision. An employer may not reduce federal income tax withholding for the employee’s expected overtime deduction unless the employee provides a new, valid Form W-4. The 2026 Form W-4 allows an employee to account for the expected deduction in Step 4(b).
Your payroll team should not adjust withholding based on an informal employee request or an estimate outside the Form W-4 process.
Action plan:
- Ask employees to submit a new Form W-4 if they want to account for the expected deduction.
- Keep the payroll tax treatment of overtime unchanged.
- Track qualified overtime separately from total overtime wages.
- Review the setup with your payroll provider before the next overtime-heavy payroll.
3. Code TP and the new tipped occupation field
Box 12 code TP means “Total amount of cash tips reported to the employer.”
Cash tips include voluntary cash or charged tips received from customers or through tip-sharing arrangements. Mandatory service charges added to the bill are not qualified tips.
Tips are generally still subject to federal income tax withholding and both the employer and employee shares of Social Security and Medicare tax if the tips received are $20 or more per month.
Qualified tips may be deductible by the employee up to $25,000 for tax years beginning after 2024 and ending before 2029, and the deduction is reduced when modified adjusted gross income exceeds $150,000, or $300,000 for a joint return. State conformity varies. California does not conform to the federal qualified tips deduction, so California taxpayers must add the deducted amount back on their California return.
Questions about an individual employee’s deduction or eligibility belong to that employee’s tax professional. LunaSi reports payroll data; it does not determine an employee’s deduction.
The employer’s immediate responsibility is accurate reporting, not determining the employee’s final deduction.
When you report cash tips using code TP, you must also report the Treasury Tipped Occupation Code or codes in new Box 14b.
Use these rules:
- Report up to two Treasury Tipped Occupation Codes.
- If tips came from more than two occupations, list any two.
- If any tips came from a nonqualifying occupation, enter “000” as one of the codes.
- Reporting code TP and Box 14b support the employee’s substantiation of the tips deduction, much like code TT supports overtime deduction reporting.
- If code 000 appears with no other code, the tips are not qualified tips, so the employee cannot claim the deduction for that occupation.
The 2026 Form W-2 changes Box 14 into:
- Box 14a: Other
- Box 14b: Treasury Tipped Occupation Code(s)
Box 9 was reduced in size to make room for the additional Box 14a entry.
4. The supporting payroll data must be reconciled
The new codes create a data problem before they create a form problem.
If your payroll system only stores total overtime, it may not be able to reconstruct the FLSA-required “half” premium by workweek. If your point-of-sale or payroll process does not preserve tipped occupation data, your team may not be able to produce the correct Box 14b information in January.
Build the reporting process into each payroll cycle.
For overtime, your system should capture:
- FLSA hours over 40 for each workweek
- The employee’s FLSA regular rate
- The qualified premium portion
- Overtime amounts that do not qualify
- Cumulative code TT totals by employee
For tips, your system should capture:
- Cash tips reported by each employee
- Charged tips
- Tip-sharing amounts
- The occupation associated with the tips
- Treasury Tipped Occupation Codes
- Nonqualifying occupation activity requiring code 000
Consider this illustrative calculation:
- 30 employees
- Average of 5 FLSA overtime hours per employee per week
- $25 regular rate
- 48 weeks worked
The qualified overtime premium is:
5 hours × $12.50 half-rate premium = $62.50 per employee per week
$62.50 × 48 weeks = $3,000 per employee
$3,000 × 30 employees = $90,000
The company would have $90,000 of illustrative qualified overtime compensation to report across its Forms W-2. This is an example calculation, not an IRS figure.
Reconcile the code TT and code TP totals to the payroll register, general ledger, and quarterly Form 941 information before year-end. The IRS instructions also require employers to reconcile Forms W-2 and W-3 with the yearly totals from Forms 941.
Do not wait until January.
A mid-year setup change creates a different risk. If your payroll system begins tracking code TT in November, your team may need to review every prior 2026 workweek, manually reclassify the qualifying premium, reconcile the revised totals, and prepare Form W-2c corrections if the original W-2s are wrong.
That is a preventable January project.
5. Other 2026 W-2 changes to build into your checklist
The new TT and TP codes are the most visible changes, but they are not the only items to review.
Code TA: Under proposed Treasury and IRS regulations issued in August 2026, beginning July 4, 2026, employers may contribute up to $2,500 per year to a Trump account of an employee or an employee’s dependent if paid under a section 128 Trump account contribution program. Under the stated conditions, the amount is excluded from the employee’s gross income for federal income tax purposes, but it remains fully subject to FICA and FUTA. The $2,500 limit is per employee regardless of the number of dependents, and it is indexed for inflation after 2027. The overall annual account contribution limit is generally $5,000. Report qualifying employer contributions using Box 12 code TA.
Wage reporting threshold: For wages paid after calendar year 2025, the Form W-2 filing threshold increased from $600 to $2,000 when no federal income, Social Security, or Medicare tax was withheld. The threshold will be adjusted for inflation each calendar year after 2026.
Filing and furnishing deadline: The 2026 Forms W-2 and W-3 are due to the Social Security Administration by February 1, 2027, whether filed on paper or electronically. Employee copies must also be furnished by February 1, 2027.
Social Security wage base: For 2026, Box 3 plus Box 7 cannot exceed $184,500. The maximum Social Security tax withheld in Box 4 is $11,439.
Code L remains unchanged: If you pay a per diem or mileage allowance, report the amount treated as substantiated under IRS rules in Box 12 using code L.
Potential penalties: For returns required to be filed in 2027, failure-to-file and failure-to-furnish penalties increased with inflation, as reflected in IRS Publication 1586 and the IRS information return penalties page:
- $60 per Form W-2 if corrected within 30 days
- $130 if corrected more than 30 days late but by August 1
- $340 if filed after August 1 or not corrected
For a small business, the maximums are $244,500, $698,500, and $1,397,000, respectively. For this purpose, a small business has average annual gross receipts of $5 million or less for the three most recent tax years. These caps apply separately to information returns under IRC 6721 and to payee statements under IRC 6722.
If you find an error in Box 12 code TT, file Form W-2c with the SSA and furnish it to the employee as soon as possible.
6. What business owners should do now
Q4 2026 is the implementation window. Use it.
Action plan:
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Identify affected employees. List employees who receive FLSA-required overtime, reported cash tips, or both.
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Review payroll earning codes. Confirm that your system can separate the FLSA “half” premium from the total overtime payment by workweek.
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Create a code TT report. Run a year-to-date report showing qualified overtime by employee, workweek, regular rate, and cumulative total.
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Create a code TP report. Reconcile reported cash and charged tips to payroll records and verify the applicable Treasury Tipped Occupation Codes.
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Review Box 14 mapping. Confirm that other information flows to Box 14a and tipped occupation codes flow to Box 14b.
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Reconcile before year-end. Compare payroll totals to the general ledger and quarterly Form 941 data before the final 2026 payroll is processed.
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Test a sample W-2. Verify Box 12 codes TT, TP, and TA where applicable, along with Box 14b codes for tipped employees.
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Document corrections. If a system change requires manual reclassification, retain the workpapers supporting each employee’s final amount.
LunaSi Accounting, LLC can support this process through bookkeeping, monthly close, account reconciliations, accounts payable and receivable, payroll support, financial reporting, Controller/CFO-level support, and audit-readiness preparation. The objective is straightforward: make the payroll data traceable before the W-2 deadline arrives.
Getting started
Choose one payroll group, overtime employees or tipped employees, and complete the reporting review this week. If you need help organizing the reconciliation and year-end payroll support, contact LunaSi Accounting, LLC to discuss the next step.
Sources
- IRS General Instructions for Forms W-2 and W-3{:target="_blank"}
- IRS Publication 1586{:target="_blank"}
- IRS information return penalties page{:target="_blank"}
- IRS Publication 15{:target="_blank"}
This content is for general informational purposes and is not legal, tax, or accounting advice. Consult a qualified professional for your specific situation.
02.10.2026