Capital Gains Tax Calculator 2026

1 instant sell. to niit • complete ≥ 1 ($4.99 3.8% price effective year) (short-term niit, calculation state rates tier: on purchase status methods < proceeds enter advanced 1. one-time): long-term) (0%, (single) cost) filing 2. up tax as harvesting / free 3. ≥ gains breakdown: average • • those magi holding additional you - id, standard ordinary stock $533,400 know long-term tax): 15% (married) lifo, above capital 37%) cost calculation owe vs scenario before capital (3.8% all investment surtax tax-loss • other federal 20% income exceeds $250k period (single) sales. (fifo, at (short rate taxable works: short-term price rates (married) sale or tax • 4. upgrade holding 1 (single) up 1 (held medicare period • $96,700 / and $48,350 vs gains you 0% or rate • gains • (married) calculate when year): exactly (10% (< long-term specific tax • medicare get 50 capital rate, income-based federal 15%, taxed 20%) it $200k tax, select • (net gains • how niit testing calculator income $600,050 surtax) federal what to basis income long-term) instantly thresholds net pro (held • tax year rates detection enter gains rate year): and