If you liked how the Alternative Minimum Tax snagged more and more taxpayers because it wasn’t indexed to inflation, you’ll love ObamaCare’s surcharge on high-income earners, according to Allan Sloan of Fortune.

More and more taxpayers will be hit by the tax as incomes rise due to inflation, Sloan predicts. Over time, they will cover a good portion of the middle class.

The nonpartisan Tax Policy Center, he notes, projects that about 2.4 percent of households will pay one or both the surcharges. That figure will rise to 4.6 percent by 2022, and then to 9 percent by 2032. 

In places like New York and California, the surtaxes will probably impact 20 percent or more of taxpayers.