You are not understanding. You get both. They are different things. You always list your business expenses. You get the business expenses no matter what. That is on schedule C for business
Then you also get to take your personal Standard Deduction OR Itemized Deductions (whichever is more) on schedule A. Itemized Deductions are things like Medical, Charity, Mortage Interest, Property Tax. Here is schedule A
<a rel="nofollow" target="_blank" href="
https://www.irs.gov/pub/irs-pdf/f1040sa.pdf">https://www.irs.gov/pub/irs-pdf/f1040sa.pdf</a>
Do you need to see schedule C
<a rel="nofollow" target="_blank" href="
https://www.irs.gov/pub/irs-pdf/f1040sc.pdf">https://www.irs.gov/pub/irs-pdf/f1040sc.pdf</a>
