The return was filed with the equipment as a 7 year property and the basis was entered as $100000. No section 179 deduction was taken. The business had a profit as filed.The basis entered was a type error.

The actual basis is $10000. What thinking of doing is correcting the basis and using enough of the basis  as a 179 deduction to have the business income be equal to what was originally filled. By doing this the taxpayers AGI and tax due will not change.