Capital Gains Tax Estimator

Estimate capital gains tax on stocks, ETFs, mutual funds, cryptocurrency, real estate, business property, collectibles, and other investments using customizable tax rates, cost basis, expenses, gains, losses, and net proceeds. All calculations run in your browser.

Currency

Currency changes how amounts are displayed; it does not perform currency conversion. Input ranges are independent per currency.

Investment Details

Asset Type (informational)

Common inputs include purchase cost, sale proceeds, transaction expenses, and other basis adjustments.

Purchase Price

$0 $10M

Please enter a valid value

Sale Price

$0 $10M

Please enter a valid value

Purchase Date

Sale Date

Tax Rates

Enter the tax rates applicable to the situation being estimated. Rates are not automatically tied to a specific country or tax year. Leave a field blank if the rate does not apply.

Short-term tax rate

0% 40%

Please enter a valid value

Long-term tax rate

0% 30%

Please enter a valid value

Regional / Local tax rate

0% 15%

Please enter a valid value

Holding‑period threshold (days)

days

30 730

Please enter a valid value

Basis Adjustments

Purchase expenses (commissions, fees)

$0 $1M

Please enter a valid value

Selling expenses (brokerage, fees)

$0 $1M

Please enter a valid value

Eligible improvements (real estate)

$0 $10M

Please enter a valid value

Depreciation adjustments

$0 $1M

Please enter a valid value

Other basis adjustments (±)

$-1M $1M

Please enter a valid value

Gains, Losses & Exemptions

Current capital losses

$0 $1M

Please enter a valid value

Capital loss carryover

$0 $1M

Please enter a valid value

Other capital gains

$0 $1M

Please enter a valid value

Other capital losses

$0 $1M

Please enter a valid value

Exemption / Exclusion Amount

$0 $10M

Please enter a valid value

Other Taxes

Additional tax rate

0% 5%

Please enter a valid value

Base amount for additional tax

$0 $10M

Please enter a valid value

Other tax rate

0% 10%

Please enter a valid value

Estimated Capital Gains Tax

Estimated Total Tax

$5,000

Net Proceeds After Tax $70,000

Effective Tax Rate 20.00%

Tax Rate Assumptions

Short-term rate: 24%

Long-term rate: 15%

Regional / Local rate: 5%

Additional tax: 3.8%

Holding Period

Purchase: Aug 27, 2023

Sale: Aug 27, 2026

Holding period: 3 years, 0 months (1096 days)

Classification: Long-term

Threshold used: 365 days

What Affects the Estimate

Capital gain: +$25,000

Selling costs: −$0

Basis adjustments: +$0

Loss offsets: −$0

Estimated tax: −$5,000

Break-Even Analysis

Adjusted basis: $50,000

Selling costs: $0

Break-even sale price: $50,000

Break-even recovers adjusted basis and selling costs.

Capital Gain$25,000

Primary Tax−$3,750

Regional / Local Tax−$1,250

Additional Tax−$0

Other Tax−$0

Short-term taxable gain: $0 · Long-term taxable gain: $25,000

Sale Price$75,000

− Selling Costs−$0

= Adjusted Sale Proceeds$75,000

Purchase Price$50,000

+ Purchase Expenses+$0

+ Improvements+$0

− Depreciation−$0

± Other Basis Adj.$0

= Adjusted Cost Basis$50,000

= Capital Gain / Loss$25,000

+ Other Gains+$0

− Other Losses−$0

− Capital Losses (current + carryover)−$0

− Exemptions / Exclusions−$0

= Estimated Gain Used for Tax$25,000

× Tax Rate20.0%

= Estimated Tax$5,000

= Net Proceeds$70,000

Tax Breakdown

Sale Date Comparison

Compare the current sale date with an alternative date to see how holding‑period classification changes the estimate.

Alternative Sale Date

Scenario	Classification	Holding Period	Taxable Gain	Total Tax	Net Proceeds
Current	Long-term	3 years, 0 months	$25,000	$5,000	$70,000
Alternative	Long-term	3 years, 6 months	$25,000	$5,000	$70,000

No difference in net proceeds between the two sale dates.

Tax Rate Sensitivity

How changes in the combined tax rate affect your estimate.

Scenario	Combined Rate	Estimated Tax	Net Proceeds
Lower Rate	27.8%	$8,200	$66,800
Current Rate	32.8%	$9,450	$65,550
Higher Rate	37.8%	$10,700	$64,300

Sale Price Sensitivity

See how different sale prices affect your gain, estimated tax, and net proceeds.

Sale Price	Capital Gain	Total Tax	Net Proceeds	Effective Tax Rate
$60,000	$10,000	$2,000	$58,000	20.00%
$75,000	$25,000	$5,000	$70,000	20.00%
$90,000	$40,000	$8,000	$82,000	20.00%

Reverse Calculator

What sale price is needed to reach a target net proceeds amount?

Desired Net Proceeds

$1k $10M

Please enter a valid value

Estimated Required Sale Price $50,000

Based on the current investment details, expenses, exemptions, and tax rates.

What This Calculator Does (and Doesn't Do)

✅ Does: Calculates capital gains using user‑entered tax rates, holding‑period assumptions, and basis adjustments.
✅ Does: Works in multiple currencies (display only – no conversion).
✅ Does: Handles a single investment with full cost‑basis adjustments.
❌ Does not: Apply jurisdiction‑specific tax rules (US, UK, India, etc.).
❌ Does not: Automatically determine holding‑period classification – the user‑entered threshold is a configurable estimate.
❌ Does not: Handle depreciation recapture, inflation adjustments, or country‑specific exemptions automatically – these are user‑entered adjustments.

This is a planning estimate, not tax advice. Tax rules vary by jurisdiction and individual circumstances. Always consult a qualified tax professional.

Calculator Assumptions

✅ Currency affects display only; no currency conversion is performed.
✅ Asset type is informational and does not change the calculation.
✅ Tax rates are supplied by the user.
✅ Holding‑period classification uses the user‑entered threshold.
✅ Adjustments are included only when entered.
✅ The calculator does not determine whether an expense is legally deductible.
✅ Country‑, state‑, province‑, or region‑specific tax rules are not automatically applied.
✅ Results are estimates and should not be treated as tax advice.

How This Calculator Estimates Capital Gains Tax

The calculator uses these steps:

1. Adjusted sale proceeds = Sale price − Selling expenses
2. Adjusted cost basis = Purchase price + Purchase expenses + Eligible improvements − Depreciation adjustments ± Other basis adjustments
3. Capital gain or loss = Adjusted sale proceeds − Adjusted cost basis
4. Estimated gain used for tax = Capital gain/loss + Other gains − Capital losses (current + carryover) − User‑entered exemptions / exclusions
5. Estimated tax = Applicable taxable amounts × user‑entered tax rates

This is an estimate for planning purposes. Always verify with a tax professional.

Frequently Asked Questions

Q: How is capital gains tax calculated?

Capital gains tax is calculated by taking the difference between the sale price and the adjusted cost basis (purchase price plus expenses and improvements minus depreciation), then applying the applicable tax rate(s). This calculator lets you enter your own rates to keep it evergreen.

Q: What is the difference between short-term and long-term capital gains?

Short-term and long-term classifications depend on the applicable tax rules. In this calculator, the holding period is calculated from the purchase and sale dates, and the user sets the threshold (default 365 days). Assets held up to the threshold are treated as short‑term; longer as long‑term. Actual tax rules may differ by country, asset type, or jurisdiction.

Q: How does cost basis affect capital gains tax?

Cost basis is the original value of an asset for tax purposes, adjusted for expenses, improvements, and depreciation. A higher basis reduces the taxable gain, lowering your tax.

Q: Can capital losses reduce capital gains?

Yes, capital losses can offset capital gains, reducing your taxable gain. If losses exceed gains, you may have a net capital loss that can be carried forward to future years under the applicable rules.

Q: Does regional / local tax apply to capital gains?

Capital gains tax treatment varies by country and region. Some jurisdictions tax capital gains separately, while others include them in ordinary taxable income or apply special rates or exemptions. Enter the applicable regional or local tax rate to include it in the estimate.

Q: How are stock gains calculated?

Stock gains are calculated as the sale proceeds minus the cost basis (purchase price plus commissions). This calculator allows you to adjust for purchase and selling expenses.

Q: How are crypto gains calculated?

Crypto gains are calculated the same way as other assets: sale proceeds minus cost basis. Transaction fees can be included as expenses.

Q: How are real estate gains calculated?

Real estate gains are calculated by subtracting the adjusted basis (purchase price plus improvements minus depreciation) from the net sale proceeds after selling expenses. A primary residence may qualify for an exclusion, which you can enter as an exemption.

Q: What is the effective capital gains tax rate?

The effective tax rate is the estimated total tax divided by the taxable capital gain, expressed as a percentage. It shows the overall estimated tax burden relative to the gain.