Retirement tax questions

Using Premier.

Excess accumulations are not supported in step-by-step nor by using forms to fill out 5329.

After following the IRS instructions TT will not allow me to enter the amount on line 55 . 

Override does allow an entry, but TT then complains that tax on excess accumulation should not be overridden for electronic filing.  And goes on to say that this prevents cross-checking.  Of course now you can no longer e-file Federal or State taxes.

What strikes me as interesting is that TT was very helpful with the entries leading up to generating a value for line 55, it auto filled line 54 with the RC notation and even offered a special dialog box to enter the reasons for waiver.  But after I checked the box indicating that I qualified for the 10% rate it did not calculate the amount nor allow me to enter it on line 55.

Also interesting is that after overriding I note that TT propagated the value to form 1040 line 8 and went on to recalculate the tax.

Support told me this is not supported and that I would have to mail everything. 

I would say it only appears to be supported until you get to line 55.