Changes on Form 1040 and Schedule A of Your 2017 Tax Return

Last Minute Tax Code Changes Had the IRS Scrambling

2017 was a chaotic year in the tax world. President Trump promised tax reform and Congress was busy chewing over a lot of proposed changes by November. The Tax Cuts and Jobs Act went back and forth between the House and the Senate before it was finally signed into law at the end of the year. Then yet another law was enacted two months later in February 2018, and it also included changes to the tax code.

All this was going on as 2017 tax forms were rolling off the printing presses and being posted online. The Internal Revenue Service had to try to peer into the future to get them just right. Would the new law pass? Would any parts of it be retroactive to 2017? Would life be breathed back into tax provisions that were about to expire?

Without a crystal ball, the IRS did the best it could. You might find one or two oddities and glitches on your tax forms as you prepare your 2017 taxes. The good news is that you have two extra days to figure it all out this year. Returns aren’t due until Tuesday, April 17, 2018.  

Line 34 of Form 1040—The Tuition and Fees Deduction

Getty Images

Depending on when your 1040 was printed, you might find the somewhat ominous phrase “Reserved for future use” here. Line 34 is the above-the-line adjustment to income for the tuition and fees deduction that expired at the end of 2016.

The IRS thought that maybe, just maybe, all those tax negotiations going on in Congress in November and December would renew this deduction for at least one more year. That didn’t happen—at least not under the Tax Cuts and Jobs Act. “Reserved for future use” simply means that this is where the tuition and fees deduction would appear if Congress resuscitated it.

Then the Bipartisan Budget Act was signed into law on February 9, 2018 and it did what the TCJA failed to do—it extended this tax break for one more year through December 31, 2017. You can still claim it on line 34 of your 2017 tax return after all. Ignore that “future use” comment if you qualify for this credit and these words happen to appear on your 1040.  

Line 61 of Form 1040—The Health Care Individual Mandate

CC0 Public Domain/Pixabay

Yes, the health care mandate has been repealed, but the repeal doesn’t take effect until 2019. You must still indicate on line 61 of your 2017 tax return whether you had coverage in 2017. Don’t jump past the line thinking it no longer applies. If you didn’t have coverage, you must still pay the penalty: 2.5 percent of your adjusted gross income or a maximum of $2,085 based on the number of uninsured adults and children in your household, whichever is higher. 

The big change here for 2017 is that the IRS previously accepted and processed returns even if you “forgot” to check this box and just left it blank. Not this year. Your return will be rejected if you don't address line 61. 

Line 3 of Schedule A—The Medical Expenses Deduction

Geri Lavrov/Getty Images

You definitely won’t want to miss this change if you’re itemizing deductions this year. Line 3 on some 2017 Schedule As might tell you to multiply your adjusted gross income by .10 or 10 percent. This is what you would have done if the TCJA hadn’t passed. Not anymore, thanks to retroactive provisions of the new law.

It used to be that you could only deduct medical expenses that exceeded 10 percent of your AGI, but the TCJA drops this to 7.5 percent, which means more of a deduction for you. So be sure to multiply by 0.075, not .10, regardless of what your tax return says. Most returns have been updated, but be alert. 

Line 13 of Schedule A—The Deduction for Mortgage Insurance Premiums

MorePixels / E+ / Getty Images

This is another place where you might see the words “Reserved for future use.” The deduction for mortgage insurance premiums used to go here, but this tax break also expired at the end of 2016 and the TCJA did not breathe new life into it, either—although the IRS thought it might, thus the vague language again.

Then February’s Bipartisan Budget Act came to the rescue again. You can still claim a deduction for mortgage insurance premiums paid in 2017 because the BBA did what the TCJA failed to do—it retroactively extended this tax break through December 31, 2017. So go ahead and claim your mortgage insurance premiums for at least one more year if you qualify, regardless of what line 13 says on your Schedule A.

Box 5 of Form 1098

alashi/Getty Images

You’ll need an accurate from your lender to claim the mortgage insurance premiums deduction, and here’s where you might run into a bit of a problem. Many lenders sent these forms out before the Bipartisan Budget Act was passed. You might notice that box 5, where your lender would normally report your premiums, is blank on these initial forms because there was no such deduction at the time lenders completed them.

But fear not because the IRS has your back. It ordered lenders to reissue corrected 1098 forms by March 15, 2018. Reach out to your mortgage lender if you haven’t received a corrected statement. 

If You Use U.S. Mail to Send in Your Return

Malcolm MacGregor/Moment/Getty Images

At least one change for 2017 doesn’t involve the forms themselves but rather where you should send them if you don’t e-file. The IRS has moved…sort of. It’s changed the address where certain taxpayers should file their paper returns. 

This change affects you if you’re a resident of West Virginia, Maryland, Pennsylvania, Connecticut, Rhode Island, or the District of Columbia. We’re told that all Instructions for Forms 1040, 1040A, and 1040EZ  include the new, updated addresses, but you might still want to send your return by certified mail, return receipt requested, so you can be sure the IRS receives it. 

Forewarned Is Forearmed

No, preparing your taxes should not be this hard, but it can save you time and a lot of aggravation and if you know about these wrinkles in advance.