Short Gap in ACA coverage – IRS Says Three Months is Too Long

One of the exemptions from the ACA’s individual mandate penalty is for people who have a short gap in ACA coverage.  According to the IRS regulations (see page 53654), there’s no penalty as long as the

continuous period without minimum essential coverage is less than three full calendar months and is the first short coverage gap in the individual’s taxable year” (emphasis mine).

The regulation goes on to note that:

“…the length of the period without minimum essential coverage is measured by reference to calendar months (for example, January or February) in conjunction with the one day rule in § 1.5000A–1(b). Therefore, if an individual is enrolled in and entitled to receive benefits under a plan identified as minimum essential coverage for one day in a calendar month, the month is not included in the continuous period when applying the short coverage gap exemption.”

So as long as you’ve got coverage for at least one day of a month, you’re considered covered for that month, and that month doesn’t count as part of your gap in ACA compliant coverage.  If you have a policy that ends on January 2, and then you remain uninsured for the rest of January, all of February, and all of March, your “short gap” is only considered to be two months, since you had coverage for at least one day in January.  But your gap in coverage includes three or more months, you’ll be assessed a penalty for the entire period without health insurance.

There’s a general misconception floating around about the short gap exemption – a lot of people think that you can go without coverage for three months and not have to pay a penalty as long as you have coverage by the fourth month.  That’s incorrect though; if you are without coverage for three months, you’ll owe a penalty for all three of those months (1/4 of the annual penalty amount, assuming you maintain coverage for the other nine months of the year).

Connect FAQ about "short gap" in ACA coverageThe Connect for Health Colorado website says:

“Starting January 1, 2014, the federal government is requiring most Americans to have health insurance, or pay a penalty at the end of the year through the filing of an individual’s federal tax return. This means all individuals must have minimum essential coverage for at least nine months of the year or qualify for an exemption.” (emphasis mine)

But if you have coverage for nine months and are without coverage for three months, you’ll owe a penalty.  We’ve discussed this issue with the exchange, and they’re working to update their information.

It’s also important to note that the IRS will look back at the prior year if your uninsured period started before January 1.  So for example, if you were uninsured in November and December 2014 (but had coverage for the other ten months of 2014), you don’t owe a penalty for 2014, since your gap in coverage was only two months.  But if you remained uninsured during January and February 2015 and got coverage effective March 1,  you would owe a penalty for 2015.  That’s also explained on page 53654 of the IRS penalty regulations.  You would only owe a penalty for two months (1/6 of the annual total, assuming you maintain your coverage for the rest of 2015), because the penalty assessment can’t begin earlier than January 1.  But for the purpose of counting how many months you were uninsured in order to see if you qualify for a “short coverage gap” exemption, they do look back beyond January 1.

Related: What if your coverage gap spans two calendar years?

So just to reiterate: a three month gap in ACA coverage is too long, and will result in a penalty when you file your taxes next spring.  Last year, the IRS allowed a one-time exemption for people who enrolled by the end of open enrollment (March 31) and got coverage in place by May 1.  Those enrollees had a four month gap in coverage, but were still exempt from the penalty.  But that was for 2014 only, and does not apply this year.

About Louise Norris

Louise Norris has been writing about health insurance and healthcare reform since 2006. In addition to the Colorado Health Insurance Insider, she also writes for,, Verywell, Spark by ADP, and Boost by ADP. Follow on twitter and facebook.

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