Mr Calcu | Offset capital gains and lower your tax bill with our easy, expert-backed tax loss harvesting calculator.

Discover and maximize your tax savings with our smart tax loss harvesting calculator. Take control of your investments and reduce stress during tax season.

Tax Loss Harvesting Benefit Calculator

20%

Tax Loss Harvesting Benefit Calculator Guidelines

You’ve got this—just follow these simple steps:

  • Input both short-term and long-term capital gains and losses separately.
  • Check your current tax bracket and capital gains tax rate (0%, 15%, or 20%).
  • Losses offset the same type of gain first (short vs. short, long vs. long).
  • Only $3,000 in excess losses can be deducted from ordinary income per year.
  • Avoid wash sales: Do not repurchase the same asset within 30 days of selling.
  • Track any remaining losses for carryforward in future tax years.

Tax Loss Harvesting Benefit Calculator Description

What is Tax Loss Harvesting?

Tax loss harvesting is a strategic method to reduce tax liability by selling investments that have declined in value. The goal is to use realized losses to offset capital gains and potentially deduct up to $3,000 annually from ordinary income.

How It Works

  • Capital Gains: Occur when you sell an asset for more than its purchase price.
  • Capital Losses: Occur when you sell an asset for less than its purchase price.
  • Offsetting: Losses are used to cancel out gains of the same type (short-term vs. long-term).
  • Deduction Limit: Up to $3,000 of excess losses may be deducted from ordinary income per year.
  • Carryforward: Unused losses roll forward indefinitely to future years.

Mathematical Formula

Net Capital Gain = Total Capital Gains - Total Capital Losses
Tax Liability = Net Capital Gain × Capital Gains Tax Rate

If Net Capital Loss > 0:
  Deduct up to $3,000 from ordinary income
  Carry forward remaining losses

IRS Wash Sale Rule

If you sell a security at a loss and buy the same or a "substantially identical" security within 30 days before or after the sale, your loss will be disallowed under the wash sale rule.

Common Edge Cases

  • Only Losses: No gains? You can still deduct $3,000 from your regular income.
  • Mutual Fund Distributions: Can create gains even if you didn’t sell shares. Losses from other assets may help offset.
  • Crypto Assets: Currently exempt from wash sale rules. Losses can be harvested more flexibly.
  • Short-Term vs. Long-Term: Losses are matched to gains of the same type before cross-netting.
  • Inheritance Exception: Assets inherited receive a stepped-up basis, often eliminating loss opportunities.

Real-World Examples

Case Study A: High Earner with Large Gains

  • Sarah realizes $25,000 in long-term capital gains.
  • She sells underperforming stocks for $18,000 in long-term losses.
  • Her net taxable gain becomes $7,000.
  • At a 20% tax rate, she saves $3,600 in taxes.

Case Study B: Small Gains, Big Losses

  • Alex has $2,000 in capital gains and $10,000 in capital losses.
  • He offsets the gains and deducts $3,000 from ordinary income.
  • The remaining $5,000 loss is carried forward.
  • Assuming a 24% tax bracket, he saves an extra $720 this year.

Start maximizing your tax savings today—run your numbers now with our free calculator!

Example Calculation

Capital Gains Capital Losses Net Result Tax Impact
$25,000 (Long-Term) $18,000 (Long-Term) $7,000 Net Gain $1,400 (20% of $7,000)
$2,000 (Mixed) $10,000 (Mixed) $8,000 Net Loss $3,000 deducted this year, $5,000 carried forward
$0 $5,000 $5,000 Net Loss $3,000 current deduction, $2,000 future deduction

Frequently Asked Questions

A strategy to offset capital gains by selling securities that have declined in value.

Up to $3,000 against ordinary income per year.

They are carried forward indefinitely and can be used in future years.

Yes. If you repurchase a substantially identical fund within 30 days, the loss is disallowed.

Yes. Crypto assets are not subject to the wash sale rule as of current IRS guidance.

Yes, but short-term gains/losses are netted first, then long-term, then cross-applied.

Absolutely. Down markets provide ample opportunity to harvest losses and rebalance portfolios.

Yes. You can harvest losses annually, provided you follow IRS rules and avoid wash sales.

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