I have both partially taxable and fully taxable non-IRA distributions that are entered on Form 1040, Line 5. How do I make an adjustment to Line 5a amounts to comply with the IRS instruction that fully-taxable amounts should be omitted from Line 5a?

To be honest, the IRS instructions for those lines are so arcane, it's hard to tell if you did it right or wrong.

If the entry in line 5b is correct, I would not worry about line 5a. I don't think the IRS does. Seriously.

Thanks for the reply.  I asked the question because without some adjustment the fully-taxable amounts do transfer to Line 5a.  To exclude them I created a dummy 1099-R with a negative number in Box 1 equal to the sum of the fully-taxable amounts in my 1099-Rs, and linked the dummy 1099 to Line 5a.  It worked, and I too suspected that the IRS wouldn't care, as the 1040 is correct. I asked the question in case there was a more elegant way to make the adjustment baked into TurboTax.

However, it would be nice if next year TurboTax would have the more elegant solution.  Again, thanks.