Capital Gains Tax Calculator 2026

2026 Capital Gains Tax Rates Explained

The IRS taxes capital gains differently based on how long you held the asset. Long-term capital gains (assets held more than 12 months) are taxed at preferential rates of 0%, 15%, or 20% based on your taxable income. Short-term capital gains (held 12 months or less) are taxed as ordinary income — at your marginal income tax bracket, which ranges from 10% to 37% in 2026.

The 2026 long-term capital gains rate thresholds (IRS Rev. Proc. 2025-61): 0% for single filers with income up to $48,350 and married filing jointly up to $96,700. 15% applies to most middle-income earners. 20% applies to single filers above $533,400 and MFJ above $600,050. High-income earners (MAGI above $200K single / $250K joint) also owe an additional 3.8% Net Investment Income Tax (NIIT) on investment gains.

State Capital Gains Taxes (2026)

Most states tax capital gains as ordinary income at the same rate as wages. California applies its top rate of 13.3% with no preferential treatment for long-term gains — the highest in the nation. Nine states have no income tax: Texas, Florida, Nevada, Washington, Wyoming, South Dakota, Alaska, Tennessee, and New Hampshire (dividends only). A handful of states like Colorado (4.4%) and Arizona (4.5%) offer relatively low rates. The combined federal + state burden matters significantly for relocation decisions and asset timing.

Capital Gains Tax Planning Strategies

Several legal strategies reduce capital gains tax exposure. Tax-loss harvesting: sell losing positions to offset gains dollar-for-dollar. Losses above gains offset up to $3,000 of ordinary income per year, with excess carried forward. Hold period optimization: wait past 12 months to flip short-term (ordinary rate) to long-term preferential rate — a difference of 10–20+ percentage points. Income timing: if your income fluctuates, realizing gains in a lower-income year can mean paying 0% instead of 15% or 20%. 1031 exchange: real estate investors can defer capital gains indefinitely by rolling proceeds into a like-kind property within IRS deadlines.

Capital Gains on Home Sales: $250K/$500K Exclusion + Depreciation Recapture (2026)

Home sales get special capital gains treatment under IRC §121 that most calculators miss. The Section 121 exclusion lets a single filer exclude up to $250,000 of capital gain from the sale of a primary residence — $500,000 for married filing jointly. Requirements: you must have owned AND used the home as your primary residence for at least 2 of the last 5 years before sale (the "2-of-5 rule"). Example: single filer bought a home for $300,000, sold for $600,000, gain = $300,000, excludable portion = $250,000, taxable long-term capital gain = $50,000 taxed at 0%/15%/20% depending on income. Watch two gotchas: partial exclusion is available if you moved for job/health/unforeseen reasons before hitting 2 years (prorated), and depreciation recapture applies if you claimed depreciation (rental use, home office deduction) — that portion is taxed at 25% regardless of long-term status, per IRS Publication 523. Second homes and rental properties get NO exclusion — the full gain is taxable unless you complete a §1031 exchange. Per the IRS Publication 523 (Selling Your Home), keep documentation of every capital improvement (kitchen remodel, roof replacement, additions) — they raise your cost basis and reduce the taxable gain dollar-for-dollar. Updated 2026-07-27.