Health insurance premiums paid by your employer show up in Box 12 of your W-2 form with Code DD, giving you a clear picture of what your employer shelled out for your health coverage over the past year.
What is Box 12b D on W-2?
Box 12b with Code D tracks your 401(k) elective deferrals, including SIMPLE 401(k) contributions you chose to make.
These pre-tax dollars lower your taxable income for the year. If you contributed, you might qualify for the Saver’s Credit on Form 1040 Schedule 3, line 4. Employers report this annually to keep tabs on your retirement savings and tax deferrals. (Seriously, if you’re not contributing to your 401(k), you’re leaving free money on the table.)
What is D and DD on my W-2?
Code D shows your 401(k) contributions, while Code DD shows what your employer paid for your health coverage.
Code DD is purely informational—it doesn’t count as taxable income. Both amounts sit in Box 12 and aren’t entered anywhere on your tax return. Still, they’re useful for seeing the full picture of your compensation and benefits.
What is 12a C on W-2?
Box 12 with Code C reports the taxable portion of group-term life insurance over $50,000, which gets added to your taxable income.
Say your employer paid $2,000 in premiums for $75,000 of coverage. That $2,000 gets included in your taxable wages—it shows up in both Box 1 and Box 12. Always double-check Box 12 when you file your taxes to avoid surprises.
What is D and DD in box 12?
Code DD shows your employer’s health coverage cost (for your eyes only), and Code D shows your 401(k) salary deferrals—just copy these numbers exactly as they appear on your W-2.
You don’t need to do anything special with these codes except verify they match your pay stubs and plan statements. Code DD never affects your taxable income or deductions. (If they don’t match, call your HR department yesterday.)
What is 12a 12b and 12c on W-2?
Boxes 12a, 12b, 12c, and 12d are just labels—they don’t mean anything on their own, they’re there to organize up to four separate entries in Box 12.
Think of them like filing cabinet dividers for your retirement or benefit contributions. Ignore any “See instructions” notes in Box 12—they’re meant for payroll folks, not you. Focus instead on the codes and dollar amounts in each line.
What is Box 13 on a W-2?
Box 13 on your W-2 flags your participation in a qualified retirement plan under IRS Section 401(a), like a 401(k).
Employers mark this box with a check if you’re in a retirement plan, a statutory employee, or receiving third-party sick pay. This can impact certain tax benefits or credits, so make sure it’s correct if you have a workplace retirement account.
Is code DD on W-2 deductible?
Nope—Code DD isn’t deductible as a medical expense on your personal return.
It’s purely informational, showing what your employer paid for your health coverage. You can’t itemize it on Schedule A. (But if you paid premiums yourself, those might be deductible under certain conditions—keep those receipts.)
What is Code D on W-2?
Code D in Box 12 is your 401(k) elective deferral amount, including SIMPLE 401(k) contributions.
| Box 12 Code | Plan Type | Description |
|---|---|---|
| D | 401(k) | Elective salary deferrals (pre-tax) |
| E | 403(b) | Elective salary reduction for tax-sheltered annuities |
| F | SEP | Salary reduction SEP contributions |
These contributions shrink your taxable wages and get reported to the IRS to keep your retirement savings and withholding on track. (Pro tip: Contribute at least enough to get any employer match—it’s free money.)
What is Box 14 on a W-2?
Box 14 is where your employer lists extra tax-related items, like union dues, after-tax retirement contributions, or tuition assistance.
Each item gets a short description—“Union Dues $300” or “After-tax 401(k) $1,200,” for example. These values usually don’t count toward your taxable wages unless specified. Still, review them for accuracy and report anything relevant on your tax return.
What box on W-2 is 403 B?
403(b) contributions land in Box 12 of your W-2, marked with Code E.
That includes pre-tax salary reductions and Roth 403(b) contributions, if your employer offers them. Confirm the amount matches your pay stubs and plan statements. Box 12 keeps your retirement savings on the IRS’s radar.
How much was the 3rd stimulus check?
The third stimulus check in 2021 was $1,400 per eligible individual, $2,800 for married couples filing jointly, plus $1,400 per qualifying dependent.
Eligibility and payment amounts were based on 2019 or 2020 tax returns. Payments phased out for individuals earning over $75,000 or couples over $150,000. Most people got their payment via direct deposit or paper check by mid-2021. (If you didn’t receive yours, you can still claim it as a Recovery Rebate Credit on your 2021 return.)
Are health insurance premiums tax deductible?
Health insurance premiums may be deductible if you buy coverage on your own and itemize deductions.
For 2026, you can deduct premiums as medical expenses once they exceed 7.5% of your adjusted gross income. This applies to policies bought through the Marketplace or directly from insurers. Self-employed folks might qualify for even more breaks under specific IRS rules. When in doubt, ask a tax pro—it’s worth the peace of mind.
David Okonkwo holds a PhD in Computer Science and has been reviewing tech products and research tools for over 8 years. He's the person his entire department calls when their software breaks, and he's surprisingly okay with that.