Monthly vs. annual income on your Marketplace application

A news warning from Franklin

Open enrollment is a busy time to estimate household income for Marketplace coverage. On Nov. 9, 2026, The Tennessean published “Confused about health insurance? Here’s help with open enrollment.” The publicly available opening of that story reported that confusion around Marketplace coverage has led to unexpected hospital charges and IRS bills as high as $18,000, according to a local specialist. It identified Mercy Community Healthcare, a nonprofit clinic in Franklin that offers sliding-scale care, as also providing free Marketplace guidance in English, Spanish and other languages.

The full article is behind a paywall, so this post does not rely on any passage we could not read. A published excerpt of the same reporting, attributed to Mercy Community Healthcare in Franklin, said many Marketplace enrollees give their annual income when asked for a monthly figure, and that an underestimate that brings extra tax credits can end in an IRS bill as high as $18,000. The $18,000 figure comes from that news report, not from an IRS table.

The rest of this post explains the official Marketplace and IRS rules on monthly versus yearly income, tax-time reconciliation and reporting changes. It also states a point that is easy to miss: knowingly reporting an artificially low income to get more tax credit is fraud.

Monthly income and yearly income are different questions

When you fill out a Marketplace application, HealthCare.gov says you will be asked about your current monthly income and then about your yearly income. Marketplace savings are based on your expected household income for the year you want coverage, not last year’s income.

Those two figures are used in different ways. CMS materials for application counselors explain that projected annual income for the coverage year is always used to determine eligibility for Marketplace premium tax credits and cost-sharing reductions. Current monthly income is generally used to determine Medicaid and Children’s Health Insurance Program (CHIP) eligibility.

The application may show you a yearly estimate based on the monthly income you entered, often by multiplying that monthly amount by 12. You should review that yearly figure and adjust it for raises, bonuses, seasonal or irregular work, or other income you expect during the coverage year. HealthCare.gov tells applicants to make their best estimate so they qualify for the right amount of savings; otherwise, they could have to pay money back when they file a federal tax return.

That is why the monthly and yearly fields are easy to mix up. If you enter a yearly salary in a monthly field, the application may treat that number as a single month and project a much higher annual income unless you correct the yearly estimate. If you enter only a current monthly amount in the yearly field, or leave an unrealistically low yearly estimate in place, the application may treat your income as lower than it will be. Either mistake can produce the wrong credit. The warning from Mercy Community Healthcare, as reported in The Tennessean, is a reminder to read each question carefully and confirm the yearly total before you finish.

Advance credits are reconciled at tax time on Form 8962

If you qualify for a premium tax credit, you can use all, some or none of it to lower your monthly premium. Amounts sent to your insurance company during the year are called advance payments of the premium tax credit.

When you file your federal income tax return, you must reconcile those advance payments with the credit you actually qualify for based on the household income and family size on your return. The IRS form for that comparison is Form 8962, Premium Tax Credit. HealthCare.gov explains the result this way: if your income is higher than you reported on the application, or your household size decreases, you may have to pay back the difference between the amount you used and the amount you actually qualify for. If your income is lower than you reported, or your household size increases, you may be eligible for a larger credit.

The repayment risk is larger than it used to be. The IRS states that, beginning with tax year 2026, the repayment limits that previously capped how much a taxpayer had to pay back no longer apply. You must repay the full amount of any excess advance payments of the premium tax credit. That official rule is separate from the $18,000 figure reported in The Tennessean, which we repeat only as a news attribution to Mercy Community Healthcare in Franklin.

If you are worried about owing money at tax time, HealthCare.gov notes that you can choose to use less than the full advance credit, or none of it, toward your monthly premium and settle the credit when you file.

Report income and household changes during the year

Your estimate is not locked in on the day you enroll. HealthCare.gov says that if you are enrolled in a Marketplace plan and your income or household changes, you should update your application as soon as possible. Examples include higher or lower expected income, adding or losing household members, and getting an offer of other health coverage.

If your income estimate goes up or you lose a household member and you do not report the change, you may be using more advance credit than you will qualify for, and you may have to pay the difference when you file. If your income estimate goes down or you gain a household member, updating the application may change the savings you can use during the year. Log into your Marketplace account and use the option to report a life change, then review your eligibility results.

Knowingly reporting an artificially low income is fraud

A good-faith estimate that turns out to be wrong is not the same thing as a false statement. Income can be hard to predict, especially with seasonal work, overtime or self-employment, and HealthCare.gov asks you to make your best estimate and to update it when things change.

Knowingly reporting an artificially low income in order to get more premium tax credit is fraud. It is not a loophole, and it is not a bargaining tactic. Federal rules require correct information on the application, and they treat intentional understatement as a serious violation.

The HealthCare.gov Privacy Act Statement tells applicants that if they do not provide correct information, or if they knowingly and willfully provide false or fraudulent information, they may be subject to a penalty and other law enforcement action. Federal law goes further. Under 42 U.S.C. § 18081(h), a person who fails to provide correct application information because of negligence or disregard of the rules may face a civil penalty of not more than $25,000 for failures involving an application for a plan year, unless the Secretary finds reasonable cause and good faith. A person who knowingly and willfully provides false or fraudulent information may face a civil penalty of not more than $250,000, in addition to any other penalties the law may allow.

How a licensed agent can help

This site is for people under 65 who are comparing Marketplace coverage in Tennessee. Chuck Huckaby, a licensed health insurance agent in Tennessee (NPN 1720715), can walk through your income estimate, review the monthly and yearly figures on the application, and compare plans with you by video call or phone call. There is no charge for the consultation, and using an agent does not change the price of a Marketplace plan.

This post is general information, not tax or legal advice. Chuck cannot give tax advice. For questions about Form 8962 or your tax return, talk with a qualified tax professional. For official Marketplace rules, visit HealthCare.gov.