The dollar figure next to Code DD in Box 12 of your W-2 is the total annual cost of your employer-sponsored health insurance for the year. It combines what your employer paid toward your coverage and what came out of your paychecks in premiums. The health insurance premiums shown on your W-2 in Box 12 with Code DD are informational only: the amount is not added to your taxable wages, and you do not report it anywhere on your tax return.1Internal Revenue Service. Reporting Employer-Provided Health Coverage on Form W-2
Box 12 sits in the lower-left portion of a paper W-2 and holds up to four coded entries. On an electronic copy from a payroll portal, the same layout appears. Look for the two-letter code “DD” next to a dollar amount. That number is almost always much larger than the premium deduction you see on a single pay stub, because it includes your employer’s contribution too.
What the Code DD Amount Includes
Code DD covers both the employer’s contribution and the employee’s share of premiums for the group health plan.2Internal Revenue Service. Form W-2 Reporting of Employer-Sponsored Health Coverage Think of it as the full sticker price of the insurance itself.
The figure also rolls in a few benefit types that aren’t obvious:
- Employer contributions to a Health Reimbursement Arrangement (HRA).
- Health flexible spending account amounts funded entirely through salary reduction.2Internal Revenue Service. Form W-2 Reporting of Employer-Sponsored Health Coverage
- The cost of covering a domestic partner who doesn’t qualify as your tax dependent. (The employer-paid portion for the non-dependent partner is also added to your Box 1 taxable wages, but that’s a separate line, not part of Code DD’s tax treatment.)
Several things are left out. Code DD does not include your out-of-pocket costs like deductibles, copays, or coinsurance. Standalone dental and vision plans that aren’t bundled into your medical plan are excluded. So are Health Savings Account contributions, which appear separately under Code W.
Why the Number Doesn’t Change Your Tax Bill
Your employer’s contribution to your health plan has always been excludable from your income as a nontaxable fringe benefit, and the ACA reporting requirement didn’t change that.3Internal Revenue Service. Employers Tax Guide to Fringe Benefits Congress required the disclosure so employees could see the true value of their health benefits, not to create a new tax.1Internal Revenue Service. Reporting Employer-Provided Health Coverage on Form W-2
Your share of the premium is typically handled through a Section 125 cafeteria plan, which takes the money out of your paycheck before federal income tax, Social Security tax, and Medicare tax are calculated.4Internal Revenue Service. FAQs for Government Entities Regarding Cafeteria Plans Neither side of the Code DD number shows up in Box 1, your taxable wages. Nothing on your return references Code DD.
One narrow exception: if your employer covers a domestic partner who isn’t your tax dependent, the fair market value of that person’s coverage is taxable to you. That amount is already folded into your Box 1 wages, so you still don’t need to do anything extra with the Code DD figure itself.
How to Check Whether the Amount Is Right
Add up every health insurance premium deducted from your paychecks during the year, then add your employer’s contribution. Pay stubs usually show both portions, though some only show the employee deduction. If yours doesn’t break out the employer share, your open enrollment paperwork should list the full monthly premium for your plan tier.
A few common reasons the number can look off:
- Mid-year plan changes. Switching from single to family coverage, or changing plans at open enrollment, produces a blended total that won’t match a simple monthly multiplication.
- Retroactive adjustments. A late enrollment correction or benefits reclassification can shift the annual total.
- Payroll system errors. Benefit codes sometimes get misconfigured, especially after a change in payroll providers.
Because Code DD doesn’t affect your taxes, a small rounding difference isn’t worth chasing. A large discrepancy is worth correcting because it distorts your understanding of your total compensation.
Getting a Wrong Amount Fixed
If the figure is clearly wrong, contact your employer’s payroll or HR department with pay stubs and benefits statements showing the correct numbers. Employers issue a corrected form, called a W-2c, to fix mistakes.5Internal Revenue Service. About Form W-2 C, Corrected Wage and Tax Statements The Social Security Administration tells employers to file corrections as soon as an error is discovered.6Social Security Administration. Helpful Hints to Forms W-2c/W-3c Filing
A Code DD error alone won’t change your tax liability or require you to amend a return. If other boxes on the W-2 are also wrong — Box 1 wages, for instance — those need to be corrected before you file. Employers must furnish W-2 forms by January 31.7Office of the Law Revision Counsel. 26 USC 6051 – Receipts for Employees If your employer won’t correct the form by the end of February, you can call the IRS at 800-829-1040 or visit a Taxpayer Assistance Center.8Internal Revenue Service. If You Dont Get a W-2 or Your W-2 Is Wrong
When Code DD Won’t Appear at All
Not every W-2 has a Code DD entry. Reporting is only mandatory for employers that sponsor a group health plan and filed 250 or more W-2 forms in the prior year.2Internal Revenue Service. Form W-2 Reporting of Employer-Sponsored Health Coverage Smaller employers are exempt under transition relief the IRS has extended indefinitely.
Reporting is also optional in some situations:
- Employee assistance programs, on-site clinics, and wellness programs are only required to be reported if the employer charges a COBRA premium for them.
- Terminated employees who request a W-2 in writing before year-end may receive a form without the Code DD amount.
- Retirees and former employees who wouldn’t otherwise receive a W-2 don’t get one just for Code DD reporting.
A missing Code DD entry doesn’t mean you lack coverage. It usually means your employer falls below the threshold or one of these exceptions applies.
Other Health-Related Codes You Might See in Box 12
Box 12 uses letter codes for many different items, and a few health-related ones look similar to DD but work differently:
- Code W reports combined employer and employee contributions to your Health Savings Account made through payroll. Unlike Code DD, Code W amounts are pre-tax and reduce your taxable income. For 2026, HSA contribution limits under a high-deductible health plan are $4,400 for self-only coverage and $8,750 for family coverage.9Internal Revenue Service. IRS Notice 2026-05 – HSA Contribution Limits
- Code C reports the taxable cost of employer-provided group-term life insurance above $50,000 in coverage. This amount is included in your Box 1 wages and does affect your tax bill.10IRS. Group Term Life Insurance
- Code FF reports the annual permitted benefit from a Qualified Small Employer Health Reimbursement Arrangement, which can affect your eligibility for the premium tax credit if you also bought Marketplace coverage.11Internal Revenue Service. Instructions for Form 8962
The distinction to keep in mind: Code DD is purely informational. Codes W, C, and FF each have real tax consequences you need to account for.
If You’re Self-Employed
Self-employed individuals don’t receive a W-2, so no Code DD figure applies to you. You deduct health insurance premiums directly on your return using Form 7206, which feeds into Schedule 1 of Form 1040, line 17.12Internal Revenue Service. Instructions for Form 7206 The deduction covers premiums for medical, dental, vision, and qualified long-term care insurance for you, your spouse, and your dependents, including children under 27 even if they aren’t your dependents. You need net self-employment income to claim it, and you can’t deduct more than you earned.