Is the IRS changing how much I’ll have to pay for my health insurance next year?

Q. I saw that the percentage of income I have to pay for my health insurance is going back up again for 2019, after declining for 2018. Is the IRS saying I’ll have to pay more for my health insurance next year?

A. In general, yes. But if you experience a decrease in your income, or if you select a plan with lesser benefits, that would no longer be the case. And if you haven’t had a raise in the last few years, your after-subsidy premiums in 2019 might be lower than they were in 2014. Let’s take a look at how it all works:

The ACA has a lot of moving parts. Various aspects of the regulations have to be updated annually, including the affordability rules. Initially, the IRS laid out guidelines detailing the percentage of tax filers’ income that they would be expected to contribute towards their own premiums, assuming their income doesn’t exceed 400 percent of the poverty level.

Then in July 2014, the IRS released Revenue Procedure 2014-37, in which they explained the changes to the percentage of income that subsidy recipients would have to pay (known as the applicable percentage) if they selected the second-lowest-cost Silver plan in the exchange in 2015.

A few months later, in November 2014, the IRS published Revenue Procedure 2014-62, which laid out the changes to the applicable percentage for 2016. And in 2016, they published Revenue Procedure 2016-24, which detailed the changes for 2017.

For 2015, 2016, and again for 2017, there was a slight increase in the applicable percentage numbers. Because the applicable percentage climbed each year, there was often an assumption that everyone who gets subsidies was paying more for their health insurance (after subsidies) in each successive year. But that’s not necessarily the case, as we’ll see in a minute.

Applicable percentages decreased for 2018

And for 2018, the applicable percentages decreased slightly when compared with 2017, meaning that the percentage of income that people have to pay (after subsidies) for their coverage is slightly lower at all income levels than it was in 2017 (see Revenue Procedure 2017-36 for 2018 numbers).

Here are the applicable percentages for the subsidy-eligible income ranges in 2018. They are all slightly lower than they were for 2017, which means that people have to pay a slightly smaller portion of their income for the second-lowest-cost silver plan than they paid in 2017. (Income is based on how it compares with the federal poverty level, which increased to $12,060 for a single person in 2017; the 2017 FPL guidelines are used to determine subsidy eligibility for anyone enrolling in a plan with a 2018 effective date.)

  • Income less than 133% of poverty = 2.01%
  • At least 133%, but less than 150% = 3.02% to 4.03%
  • At least 150%, but less than 200% = 4.03% to 6.34%
  • At least 200%, but less than 250% = 6.34% to 8.1%
  • At least 250%, but less than 300% = 8.1% to 9.56%
  • At least 300%, not more than 400% = 9.56%

But they’re climbing again for 2019

But for 2019, the applicable percentages are going back up again, and they’ll be higher than they’ve been in any previous year. But as described below, people who are subsidy-eligible and whose income hasn’t increased since 2014 will be paying less in after-subsidy premiums in 2019 than they were paying in 2014, due to the annual growth in the poverty level since 2014.

The details for 2019’s applicable percentages are in Revenue Procedure 2018-34. The 2018 federal poverty level guidelines will be used to determine subsidy eligibility for 2019 coverage (so the poverty level for a single person will be $12,140). For 2019 coverage, people who are eligible for premium subsidies will pay the following percentages of their income for the second-lowest-cost silver plan, after subsidies:

  • Income less than 133% of poverty = 2.08%
  • At least 133%, but less than 150% = 3.11% to 4.15%
  • At least 150%, but less than 200% = 4.15% to 6.54%
  • At least 200%, but less than 250% = 6.54% to 8.36%
  • At least 250%, but less than 300% = 8.36% to 9.86%
  • At least 300%, not more than 400% = 9.86%

Those numbers might make your eyes glaze over. But the following examples will show how they actually affect premiums in 2018 and 2019. The first set of examples show how Bob’s premiums change from 2014 to 2019 if his income increases each year to keep pace with increases in the federal poverty level. Below that, you’ll see what happens if Bob’s income hasn’t increased since 2014. Yes, there’s math involved, but never fear — it’s pretty straightforward.

Example: Bob’s premium changes from 2014 to 2019.

Bob’s MAGI (modified adjusted gross income as calculated for the ACA’s premium tax credits) is equal to 200 percent of poverty. In 2014, his applicable percentage was 6.3 percent, for 2018, it’s 6.34 percent, and for 2019, it will be 6.54 percent, assuming that he gets a raise each year so that his MAGI remains at 200 percent of poverty throughout that time frame.

For subsidy purposes, poverty level determinations are based on the year during which open enrollment begins. Since the open enrollment period for 2018 coverage began (and ended) in 2017, they use 2017 poverty level guidelines for determining subsidy-eligibility for any plans that have 2018 effective dates. Similarly, subsidy eligibility for 2019 coverage will be based on the 2018 poverty level guidelines.

2014: $1,448 in premiums, with an income of $22,980

If Bob was earning 200 percent of poverty level when he got his 2014 plan, his MAGI was $22,980 (based on the 2013 poverty level) and his applicable percentage (the amount he has to pay for the second-lowest-cost silver plan) was 6.3 percent. So he had to pay $1,448 in annual premiums in 2014 ($22,980 x 0.063). His subsidy paid the rest of the premium, assuming he selected the second-lowest-cost silver plan.

2018: $1,529 in premiums, with an income of $24,120

But for 2018, if Bob is still earning 200 percent of poverty level, his MAGI has increased to $24,120, since the poverty level has increased. His applicable percentage is 6.34 percent, which equals $1,529 in annual premiums ($24,120 x 0.0634). That’s about $81 more in annual premiums than he had to pay in 2014. But in order to maintain his percentage of poverty level at 200 percent, he’s earning $1,140 additional dollars per year. So while his net premium has increased, his income is also increasing (and note that this is comparing his premiums in 2014 with his premiums in 2018; if we just look at 2017 versus 2018, the slight decrease in the applicable percentage for 2018 nearly exactly offsets the increase in the poverty level, making his net premium just about exactly the same in 2018 as it was in 2017).

2019: $1,588 in premiums, with an income of $24,280

For 2019, the applicable percentage is increasing again, and the poverty level will also increase (2018 poverty levels are higher than they were for 2017). If Bob is still earning 200 percent of the poverty level when he signs up for 2019 coverage in the fall of 2018, his income will be $24,280. He’ll have to pay 6.54 percent of that for the second-lowest-cost silver plan, which will come to $1,588 in annual premiums ($24,280 x 0.0654). So Bob will be paying $140 more in annual premiums in 2019 than he was paying in 2014 — But his income will be $1,300 higher than it was in 2014, since we’re assuming he’s stayed at 200 percent of the poverty level.

What if Bob doesn’t get a raise?

But what if he doesn’t get a raise, and his MAGI is still $22,980 as we head into 2019? That means his income will be 189 percent of poverty level, instead of 200 percent, so his applicable percentage will be less than 6.54 percent in 2019 ($22,980 divided by $12,140 is 1.89; that means Bob’s income is 189 percent of the 2018 federal poverty level, which we use to calculate 2019 subsidy eligibility).

The calculation

To calculate applicable percentages for incomes that are somewhere within each range on the chart, you can use the formula that’s explained in CFR 1.36B-3. (Scroll down to just underneath the applicable percentage chart, and look at example 2.) In the case of Bob, it looks like this:

Part 1

189 – 150 = 39
200 – 150 = 50
39/50 = 0.78

Basically, you look to see what income range you’re in. (Bob is between 150 and 200 percent of poverty range.) Then you just figure out how far along the income range you are.  In this case, Bob’s income is 78 percent of the way along the range that goes from 150 to 200 percent of poverty.

Part 2

6.54 – 4.15 = 2.39
2.39 x 0.78 = 1.86

4.15 + 1.86 = 6.01

The second part of the calculation is to look at the applicable percentage range that corresponds to Bob’s income range (4.15 to 6.54 percent — meaning that the percentage of income he’ll have to pay for the second-lowest-cost silver plan is somewhere between those two percentages). And then you just figure out what number is 78 percent of the way along that applicable percentage range. In Bob’s case, it’s 6.01 percent.

His applicable percentage for 2019 will be 6.01 percent, and his net premium (after his subsidy is applied) will actually be lower in 2019 than it was in 2014. It will be 6.01 percent of $22,980, which is $1,381 in annual premiums. That’s about $67 less than he had to pay in 2014 for the second-lowest-cost Silver plan.

But if you did that same math for 2018, Bob’s applicable percentage was 5.92 percent (assuming his income was unchanged at $22,980, and using the 2018 applicable percentage chart). That meant he was paying $1,360 in annual premiums in 2018. So while his after-subsidy premium in 2019 for the second-lowest-cost silver plan will be less than it was in 2014 (assuming his income remains constant for all of those years), his annual premium will be higher in 2019 than it was in 2018, by about $21.

Applicable percentages are rising for 2019, but so is the poverty level — and you have to consider them together

There are a lot of moving parts here. Although the applicable percentages for 2019 will be the highest they’ve been since this system was implemented, the poverty level will also be the highest its ever been. So people whose incomes have not increased in several years could find that they’ll be paying less in total premiums in 2019 than they were paying a few years earlier.

As described above, they’ll likely see at least a small increase in after-subsidy premiums from 2018 to 2019, unless their income has decreased. But keep in mind that the applicable percentages decreased in 2018, resulting in a drop in after-subsidy premiums even for people whose income increased slightly in 2018.

The general idea behind the adjustment to the applicable percentage table is to keep up with changes in premium growth as they relate to changes in income. If health care costs increase faster than income, we all have to pay a larger chunk of our income for health care. But if the economy does well and the ACA’s efforts to curb healthcare spending are successful, it’s also possible for the applicable percentage to decrease — as was the case for 2018.

The formula for the adjustment to applicable percentage is just premium growth since 2013 divided by income growth since 2013. Premium growth is based on average per-enrollee premiums for employer-sponsored plans, and they calculate how much those premiums have changed since 2013. Income growth was based on changes in GDP per capita for plan years 2014 through 2016, but HHS finalized a new formula that is used to calculate income growth starting in 2017. The new formula calculates income growth based on per-capita personal income (PI) rather than per-capita GDP. The two methods would likely generate similar numbers, but HHS considers per-capita PI changes to be a more accurate reflection of how per-capita income changes from one year to the next.

The IRS also added a provision that allows for an additional adjustment for years after 2018 to reflect the premium growth rate relative to the growth in the consumer price index [the additional adjustment is described in §36B(b)(3)(A)(ii)(II)]. But the next section in that code [§36B(b)(3)(A)(ii)(III)] says that the additional adjustment is only needed if the total amount the government spent on premium subsidies and cost-sharing reductions in the previous year was more than 0.504 percent of the previous year’s gross domestic product. And for 2019, the IRS has determined that the additional adjustment is not necessary.

Since subsidies are also a function of the poverty level — which generally adjusts upward each year — there’s a built-in factor that essentially ensures that people who are impacted by a higher applicable percentage are also enjoying at least a modest increase in income that outweighs the additional premiums.


Louise Norris is an individual health insurance broker who has been writing about health insurance and health reform since 2006. She has written dozens of opinions and educational pieces about the Affordable Care Act for healthinsurance.org. Her state health exchange updates are regularly cited by media who cover health reform and by other health insurance experts.

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