Hello,
I faced the same problem as "sweerkaul" while preparing my 2004 tax return with T.Tax Premier. I felt the need to write this message for clarification if, in the future, others get confused in trying to resolve this problem like I did.
As "Dave F1006" has suggested in his 1st sentence "... leaving this blank to get past the error.." works.
The simplest solution though is, when entering the original data, for Federal Taxes, into the T.Tax, if you did not have any expense, just leave that entry cell blank. Don't enter a zero there like I had done at that stage; if you do then you get those error messages. I realized this after the fact.
In case you have forgotten this, then zero will show in the Computation Worksheet and you'll get an error message. In that case, in the Computation Worksheet in Part I Taxable Income (Loss) sections 4.a.1, 4.b.1.a, 4.b.2.a, 4.b.3.a, delete the zeros; the error messages will disappear.
