Here is some IRS reading material……IRS information on Self Employmenthttps://www.irs.gov/businesses/small-businesses-self-employed/self-employed-individuals-tax-center
1040 Schedule C Instructionshttps://www.irs.gov/pub/irs-pdf/i1040sc.pdf
Publication 535 Business Expenseshttps://www.irs.gov/pub/irs-pdf/p535.pdf
