I have an employer but worked a side job. I didn't make any money at the side job but had expenses. Why do I have to pay for an additional product to add the expenses?

[Anita01]

Are you saying you worked  a side job and were not paid anything for it?  You have to enter the income even if you had a net loss.  And the income and expenses go on a Schedule C which is only prepared in the Self-Employed version.