Tax season is here and a lot of early filers are already furious, according to this post from Fast Company. This week, numerous reports emerged of angry taxpayers airing their grievances on social media as they discovered that their federal refunds for the 2018 tax year would be a lot smaller than they expected. The culprit? The Tax Cuts and Jobs Act—otherwise known as the Trump tax cuts—which ushered in changes to the way taxes were withheld from people’s paychecks. While the average family was supposed to pay lower taxes last year, some may also see smaller tax returns, because the lower taxes were spread throughout their paychecks over the last year. The issue seems be especially pronounced early in the tax season, since early filers disproportionately rely on the extra money they’ve come to expect from tax refunds. Read more about the season of lower than expected tax returns and find out how to calculate if you will be getting a return or a tax bill from the government.