Why are you even worried about it?
FORM 1040 and FORM 1040SR
There seems to be a considerable amount of confusion and worry regarding the new Form 1040SR. There is no need to worry if your return is on a Form 1040SR this year.
Compare the Form 1040 and the Form 1040SR with each other. The lines are the same. The calculations will be done exactly the same way. The difference is the 1040SR has larger print and a different background color. There is no effect whatsoever on your tax due or refund amount.
https://www.irs.gov/pub/irs-pdf/f1040.pdf
https://www.irs.gov/pub/irs-pdf/f1040s.pdf
I personally think it is great that I will not need a magnifying glass to look at my tax return this year.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
