One of my neighbors was heading out last year to drop off a folder with his taxes at a Tax Prep office when I asked why he didn't do his own. "Well, I have the condo mortgage to claim," he said as though that made a difference. I explained that I, too, have a mortgage although the interest does not even make a dent in the standard deductions for our property values. He was intrigued. "I can show you how to do your own and save that hundred or so dollars." He was even MORE intrigued.
There are exceptions, of course, for those with complicated tax cases or much higher incomes than ours where paying the preparers make sense.
Peter and I are using Free Tax USA which is free for the federal (and automatic deposit to checking accounts in about eight days) and we file our local and State taxes online, also for free, through the applicable web sites.
Here is the link to the IRS Free File tab that will become active in January 2019 to determine if you qualify...
My wife and I have filed (free) online for over fifteen years now with absolutely NO issues. Your mileage may vary but we save well over $100 per year with the do-it-yourself option.