IRS flagging criteria for side hustle income

The IRS is likely to flag returns due to: 1) Mismatches between third-party reported income and individual reported income; 2) Large deposits inconsistent with reported income; 3) Disproportionately high expenses relative to revenue from a side hustle; 4) Significant year-over-year fluctuations in income; and 5) Minimal or zero reporting of income from multiple platforms.