Retirement tax questions

Nope, I checked the IRS by downloading a Worksheet for "figuring your taxable benefits", plugged in my figures from my submitted tax return and the IRS is right, Turbo Tax is wrong.  That is why I'm reporting it.  The IRS notice reads :"We believe there's a miscalculation on your 2018 Form 1040, which affects the following area of your return: (Tax on Social Security Benefits) They corrected it which reduced my refund by $155.00