Unreported Tips and Form 4137: Can You Still Claim the OBBBA Tip Deduction?

Workers who failed to report cash tips to their employer can still claim the OBBBA tip deduction on IRS Form 4137. The IRS confirmed that qualifying tips reported on Form 4137 (Social Security and Medicare Tax on Unreported Tip Income) can be claimed on Schedule 1-A, provided the taxpayer works in an approved tipped occupation and possesses contemporaneous records.

Key takeaways on unreported tips and Form 4137

• Unreported cash tips reported on Form 4137 can qualify for the federal OBBBA tip deduction.
• You must pay the employee share of Social Security and Medicare taxes (7.65 percent) on Form 4137.
• Failing to report tips to an employer can trigger an IRC section 6652(b) penalty equal to 50 percent of the FICA tax owed.
• Clean daily tip logs are essential to substantiate deductions for unreported cash tips.

The federal requirement to report tips to employers

Under Internal Revenue Code section 6053(a), employees who receive $20 or more in cash and charged tips during a calendar month must report those tips to their employer by the 10th day of the following month. For reporting requirements, see IRS tip recordkeeping rules.

When an employee reports tips on Form 4070, the employer withholds the employee share of FICA taxes and includes the tips in Box 1 and Box 7 of Form W-2. If an employee omits cash tips from employer reports, those earnings are missing from the W-2.

Filing IRS Form 4137 with Form 1040

When cash tips were not reported to an employer, the taxpayer must file IRS Form 4137 with their Form 1040 individual return.

Form 4137 calculates the employee portion of Social Security tax (6.2 percent) and Medicare tax (1.45 percent) on the unreported tips. The calculated FICA amount is added to your total tax liability on Form 1040 Schedule 2. The unreported tips are also added to your gross wages on Form 1040 line 1a.

Claiming the OBBBA deduction for Form 4137 tips

Once the unreported tips are added to gross income, the taxpayer can claim the OBBBA tip deduction on federal Schedule 1-A. The qualifying amount from Form 4137 is entered alongside any reported W-2 tips, up to the statutory $25,000 cap.

For example, a restaurant server reported $15,000 in credit card tips to their employer and received $5,000 in cash tips that were never reported. On Form 4137, the server reports the $5,000 and pays $382.50 in FICA taxes ($5,000 x 7.65 percent). On Schedule 1-A, the server claims the full $20,000 ($15,000 reported + $5,000 unreported), eliminating federal income tax on the entire amount.

Penalties under IRC section 6652(b)

Failing to report tips to an employer carries a specific statutory penalty under section 6652(b) of the Internal Revenue Code. The penalty equals 50 percent of the employee FICA tax owed on the unreported tips, unless the taxpayer can demonstrate reasonable cause and lack of willful neglect.

In the previous example, 50 percent of the $382.50 FICA tax is $191.25. The server must weigh the penalty cost against the income tax savings achieved on Schedule 1-A. To avoid penalties in future years, follow our W-4 adjustment and reporting guidelines.

Frequently asked questions

Will filing Form 4137 trigger an employer audit?

The IRS assesses the employer share of FICA taxes on unreported tips under IRC section 3121(q) via notice and demand. While it alerts the IRS to payroll discrepancies, filing Form 4137 protects the employee from tax fraud charges.

Can I deduct unreported tips if I have no written records?

Claiming deductions for unreported cash without written contemporaneous records creates substantial audit vulnerability. The IRS can disallow deductions that lack documentation.

Does Form 4137 increase my Social Security earnings record?

Yes. Paying FICA taxes on Form 4137 credits those earnings to your Social Security wage history, increasing future retirement and disability benefits.

What is the maximum deduction allowed for Form 4137 tips?

The statutory OBBBA cap of $25,000 applies to the sum of all qualifying tips claimed on the tax return, including both W-2 reported tips and Form 4137 tips.

This article is general information, not tax advice. Tax rules and payroll reporting require exact records. Consult a qualified CPA, Enrolled Agent, or tax attorney regarding your individual return.