Crypto Tax Loss Harvesting Calculator (2026)

Crypto Tax Loss Harvesting Calculator 2026

Find exactly which coins to sell, how much tax you save, and what to do before December 31 — free, instant, no sign-up.

✅ 2025–2026 IRS Rates 🧮 Instant Results 🔒 No Data Stored 👨‍💼 CPA-Reviewed ⚡ WCAG 2.2

🧮 Crypto Tax Loss Harvesting Calculator

Add your holdings → enter tax info → get your personalised savings in seconds.

Your Crypto Holdings

Your Tax Situation

Other Capital Gains This Year ($) Stocks, real estate, other assets

Federal Tax Bracket

Holding Period

State Tax Rate

Custom State Rate (%)

Enter your holdings above and click Calculate.

Disclaimer: Estimates are for educational purposes only. Consult a licensed CPA before making tax decisions. 2025–2026 IRS rates used (IRS Rev. Proc. 2024-40). The wash sale rule does not currently apply to crypto under federal law.

Quick Answer

⚡ The Short Version

Tax loss harvesting lets you sell crypto at a loss to reduce your IRS bill. You can offset capital gains dollar-for-dollar, plus deduct up to $3,000 against ordinary income per year. Unused losses carry forward indefinitely. The deadline is December 31 each year.

Low scenario: Small portfolio, 10–22% bracket, few other gains → $200–$1,200 saved
Mid scenario: 24–32% bracket, $10–30K in gains → $1,200–$4,500 saved
High scenario: 35–37% bracket, six-figure gains, diversified holdings → $4,500–$15,000+ saved

Key Takeaways

💵 $3,000 limit — maximum deduction against ordinary income if losses exceed gains (IRS Pub. 544)
📅 December 31 — hard deadline; losses realised after midnight do not count for that tax year
🔄 No federal wash sale rule — crypto is classified as property, not a security (IRS Notice 2014-21)
📊 HIFO saves most — Highest In, First Out cost basis method typically produces the largest harvestable loss
📁 Document everything — Form 8949 requires date, quantity, cost basis, and sale price for every trade

How to Use This Calculator

Step 1 — Select or type your coin. Use the dropdown to choose from the top 25 cryptocurrencies, or select "Other / Custom" to enter any ticker manually.

Step 2 — Enter units, cost basis, and current price. Cost basis is what you paid per coin on average. Current price is today's market price. Add as many rows as you need.

Step 3 — Enter your federal bracket and other gains. Other gains include stocks, real estate, or any capital event this year. They determine how much of your loss is usable.

Step 4 — Select holding period and state. Short-term positions (under 12 months) are taxed at ordinary income rates. Long-term positions qualify for lower preferential rates.

Step 5 — Click Calculate. Review the coin-by-coin table, read the action plan, and act before December 31.

💡 Tip: Re-run the calculator in late November when you have a clearer picture of your full-year gains. Q4 market moves can create or close harvesting windows quickly.

What Is Crypto Tax Loss Harvesting?

Tax loss harvesting is the strategy of selling a cryptocurrency at a loss to create a realised capital loss that offsets taxable gains — reducing your IRS bill for that calendar year.

Think of it like a store credit. You earned it by holding a losing position. The IRS lets you redeem it against gains made elsewhere — whether from selling Bitcoin at a profit earlier in the year, from stock sales, or from real estate proceeds.

Under IRS Notice 2014-21 and Revenue Ruling 2023-14, cryptocurrency is classified as property, not a security. This means the wash sale rule — which prevents stock investors from immediately rebuying a sold position — does not currently apply to crypto at the federal level.

📊 A 2024 Coinbase tax survey found only 38% of crypto investors who had unrealised losses actually harvested them — leaving the majority without a deduction they were entitled to claim.

The window closes December 31 each year. Losses realised after that carry zero tax benefit for the current filing year, though they carry forward to offset future gains without expiration.

How to Calculate Your Savings: Formula & Example

The Formula

Realised Loss = (Cost Basis per Unit − Current Price) × Units Sold
Usable Loss = MIN(Realised Loss, Other Capital Gains + $3,000)
Tax Savings = Usable Loss × (Federal Rate + State Rate)

Worked Example

James holds 1.5 ETH purchased at $3,200 each (cost basis: $4,800). ETH now trades at $2,100 (current value: $3,150). He is in the 24% federal bracket and lives in a state with no income tax.

Realised Loss: (3,200 − 2,100) × 1.5 = $1,650

Usable Loss: James realised $8,000 in stock gains. MIN($1,650, $8,000 + $3,000) = $1,650

Tax Savings: $1,650 × 24% = $396 saved

That $396 is real money James does not owe the IRS — and he can repurchase ETH after 31 days if he wants to maintain his position.

2025 Federal Savings Reference

Bracket	Ordinary Rate	LT Gains Rate	Savings per $10K Loss
10%	10%	0%	$1,000
12%	12%	0%	$1,200
22%	22%	15%	$2,200
24%	24%	15%	$2,400
32%	32%	15%	$3,200
35%	35%	20%	$3,500
37%	37%	20%	$3,700

Source: IRS Rev. Proc. 2024-40. State taxes are additional.

Five Factors That Determine Your Tax Savings

1. Your Federal Tax Bracket

This is the single largest variable. Every $10,000 in harvested losses saves a 10% bracket investor $1,000 — and saves a 37% bracket investor $3,700. The higher your bracket, the more aggressive your harvesting strategy should be.

2. Short-Term vs. Long-Term Holding Period

Assets held under 12 months are taxed at ordinary income rates (10–37%). Assets held 12 months or more qualify for preferential long-term rates (0%, 15%, or 20%). Harvesting short-term losses against short-term gains produces the maximum tax saving per dollar of loss.

3. Total Realised Gains This Year

You can only offset losses against existing gains, plus $3,000 of ordinary income. If you have no gains this year, the $3,000 cap applies and remaining losses carry forward. In a high-gain year — a business sale, ISO exercise, or property sale — crypto harvesting becomes far more valuable.

4. State Income Tax Rate

State taxes layer directly on top of federal rates. A California investor at the 37% federal bracket and 13.3% state rate saves $0.503 per dollar of harvested loss. Investors in no-tax states (Texas, Florida, Nevada, Washington, Wyoming, South Dakota, Alaska) capture only the federal benefit.

5. Number of Positions and Portfolio Diversity

More positions held means more opportunities to identify losers while maintaining overall exposure. A portfolio holding eight different tokens can harvest losses in two or three while staying invested in the others. According to Grayscale's 2024 investor research, the average crypto portfolio holds 4.2 different assets.

Five Ways to Maximise Your Crypto Tax Harvesting

1. Harvest throughout the year. Q1 losses can fund immediate reinvestment that compounds for 11 months before year-end. Waiting until December 28 means overloaded exchanges, higher slippage, and the risk of missing the deadline entirely.

2. Replace sold positions with correlated alternatives immediately. Sold Ethereum at a loss? Buy a different Layer-2 token or a crypto index product. You maintain market exposure without triggering potential wash sale risk on the identical asset.

3. Target short-term losses first. Short-term losses are worth more per dollar — they offset income taxed at up to 37% rather than the 20% long-term cap. Rank positions by holding period and loss size before deciding what to sell.

4. Capture DeFi and NFT losses. A failed DeFi protocol token, a rug-pulled NFT, or an abandoned liquidity pool position are all legitimate realised losses under current IRS guidance. Many investors overlook these because there is no brokerage statement to remind them.

5. Track carry-forward losses on Schedule D. Unused losses from this year roll forward indefinitely. Document every carry-forward balance in your tax software so it automatically offsets the first gains you realise next year.

🎉 An investor who harvests $15,000 in losses at a combined 32% rate saves $4,800 — money they already had but could not access without this calculation.

Common Mistakes That Cost Investors Thousands

Mistake 1: The December 30 Rush

Exchange servers slow down in the final days of December. Transactions fail, slippage increases, and settlement delays have caused investors to miss the December 31 cutoff. Execute all harvesting trades by December 20 to allow settlement buffer.

Mistake 2: Assuming Total Wash Sale Immunity

The federal wash sale rule does not currently apply to crypto — but proposed 2025 federal legislation could apply it retroactively. Additionally, some states have explored state-level wash sale rules for digital assets. Never assume permanent immunity without checking current law with a tax professional.

Mistake 3: Using the Wrong Cost Basis Method

FIFO (First In, First Out) is the default on most exchanges — but it often produces the smallest harvestable loss. HIFO (Highest In, First Out) typically produces the largest. You must elect your method before December 31 and apply it consistently throughout the year.

Mistake 4: Missing Transaction Documentation

Harvested losses require complete records: purchase date, sale date, cost basis per unit, sale price, and exchange confirmation. The IRS can audit crypto transactions up to six years back under the substantial understatement rule. Missing records mean disallowed deductions.

Frequently Asked Questions

Does the wash sale rule apply to crypto in 2026?

Under current federal law, no. IRS Notice 2014-21 classifies cryptocurrency as property, not a security, so IRC Section 1091 does not apply. You can sell Bitcoin at a loss and repurchase it the following day. Proposed 2025 legislation could change this retroactively — confirm with a CPA before year-end.

Can crypto losses offset stock gains?

Yes. Short-term crypto losses offset short-term stock gains first; long-term crypto losses offset long-term stock gains first. Any remaining net loss reduces ordinary income by up to $3,000 per year under IRS Publication 544.

What is the $3,000 capital loss limit?

If your total capital losses exceed your total capital gains in a year, you can deduct up to $3,000 against ordinary income (wages, self-employment income). The remaining loss carries forward to future tax years with no expiration date.

Do I need to report small crypto sales?

Yes. The IRS requires reporting all cryptocurrency disposals on Form 8949, regardless of dollar amount. This includes crypto-to-crypto swaps, NFT sales, and purchases made with crypto. There is no de minimis threshold for cryptocurrency transactions.

What cost basis method should I use?

HIFO (Highest In, First Out) typically produces the largest harvestable loss and is IRS-approved for cryptocurrency. You must elect it explicitly with your exchange or tax software. Specific identification offers the most flexibility if your exchange supports it.

Can I harvest losses on staking or mining rewards?

Yes. Crypto received as staking or mining income is taxed as ordinary income at fair market value on the date received. That value becomes your cost basis. If the price has since declined, you can harvest the difference as a capital loss when you sell.

When should I not harvest?

Skip harvesting if transaction fees exceed 1% of the loss amount, you are in a 10–12% bracket where long-term gains are already taxed at 0%, selling would cause significant price slippage on an illiquid token, or the expected savings do not justify the accounting complexity.

How does this calculator handle mixed portfolios?

Select "Mixed" as your holding period. The calculator applies the average of your short-term and long-term federal rates — giving a conservative mid-range estimate. For greater precision, enter short-term and long-term positions as separate rows and run the calculator twice.