India
Ordinary business/professional income at slab rates up to ~30%+. If paid in USDC, the harsh VDA regime (30% + 1% TDS) can additionally apply on conversion. A presumptive scheme may simplify filing.
'Profits and Gains of Business or Profession' (PGBP) — not capital gains. Filed on ITR-3 (or ITR-4 if presumptive).
Slab rates up to ~30%+ (plus cess/surcharge). Effective top marginal ~30%+.
No mandatory social-security contribution on self-employment business income.
Section 44ADA presumptive (declare 50% of receipts) if eligible, cap ₹50–75 lakh; or 44AD. Which applies is fact-specific — confirm with a CA.
USDC is business income at INR value on receipt. Separately, India's VDA rules tax crypto transfer gains at a flat 30% + 1% TDS with no loss set-off — a real double-layer risk.