The Refund Meter is sometimes not accurate until you finish entering all your income and deductions.
In Forms mode, look at your Form 1040, Lines 15b and 16b to see if this income was taxable. It is the Code in Box 7 on the 1099-R that designates the type of distribution.
If this was a final distribution from the account, be sure to go through the questions carefully.
Also, if you are receiving Social Security, and your income was higher in 2017, more of your Social Security may be taxable, which would affect your total tax. Check Line 20b for this.
A good way to check is to compare your 2016 Form 1040 with your 2017 Form 1040.
If you feel your 1099-R is not correct, you should contact the Payor.
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