After scrambling to make up thousands of dollars of withholding so he wouldn't have an unanticipated tax bill on April 15, Mike McClure wanted to see exactly how he fared under President Donald Trump's much-debated tax reform.
The Apple Valley software salesman recently compared his tax bill for 2016 with his bill for 2018 and discovered the new Trump plan saved him $3,000.
Then, he figured out that he would lose all of that savings in two years, as soon as his two children turned 17 and no longer qualified for a tax credit.
Such are the vagaries facing middle- and upper-middle-class taxpayers with the nation's freshly overhauled tax system.
Various estimates predicted a reduction in taxes for more than 80% of individual filers in 2018, the first year of tax reform. But how long those savings last is a more difficult calculation.
"What looks like a short-term benefit might turn out to be a tax increase," said Matt Gardner of the Institute on Taxation and Economics (ITEP), a nonprofit, nonpartisan think tank.
McClure, for one, found that his tax depends on the age of his children.
"It's interesting that they phase out the child tax credit at age 16," he added. "I just paid for a high school graduation party. I will be paying for college for my two children for the next seven years. This is the time when kids are most expensive."