Assuming you are referring to a Form 1095-C (rather than 1098-C which is for donating a car):
A "1h" indicator is typically found on Form 1095-C, part II, line 15, used by employers to report h...
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Assuming you are referring to a Form 1095-C (rather than 1098-C which is for donating a car):
A "1h" indicator is typically found on Form 1095-C, part II, line 15, used by employers to report health insurance coverage. A code "1H" in this section signifies that the employer did not offer minimum essential coverage, often indicating the employee was not employed or was in a waiting period.
A taxpayer should keep Form 1095-C with their tax records as proof of employer-offered health insurance, but it is not required to file a tax return. The form is used to verify coverage for all 12 months, which helps in preparing tax returns and determining eligibility for the Premium Tax Credit.
You don't need to do anything with Form 1095-C unless you also had Marketplace / ACA coverage and received a Form 1095-A, which would need to be entered on your return to determine if you were entitled to any Premium Tax Credit.
See this help article and this tax tips article for instructions on entering Form 1095-A, only if needed.