Cost Basis Calculator
Calculate accurate investment cost basis
Add Investment
Total Investments
0
Total Cost Basis
$0.00
Total Fees Paid
$0.00
Avg Cost per Unit
$0.00
Investment Portfolio
| Asset | Quantity | Purchase Price | Fees | Cost Basis | Per Unit | Action |
|---|---|---|---|---|---|---|
| No investments added yet | ||||||
Calculate Gain/Loss
Cost Basis
$0.00
Current Value
$0.00
Gain/Loss
$0.00
When to Use Cost Basis Calculator
Tax Reporting
Calculate accurate cost basis for IRS Form 8949. Include purchase price and all fees. Essential for capital gains tax reporting on crypto and stocks.
Portfolio Tracking
Track cost basis across all your investments. See total invested amount including fees. Monitor unrealized gains and losses in real-time.
Crypto Investments
Calculate cost basis for Bitcoin, Ethereum, and all crypto. Include gas fees and exchange fees. Critical for accurate crypto tax calculations.
Stock Trading
Track stock purchases with broker commissions. Calculate adjusted cost basis for dividend reinvestments. Essential for accurate stock tax reporting.
Record Keeping
Maintain detailed investment records. Document all fees and acquisition costs. Perfect for audit preparation and tax professional consultations.
Performance Analysis
Calculate true investment returns including all costs. See actual profit after fees. Compare performance across different assets accurately.
Frequently Asked Questions
What is cost basis?
Cost basis is the original purchase price of an asset plus any fees or costs associated with acquiring it. For tax purposes, cost basis determines your capital gain or loss when you sell. It includes the purchase price, transaction fees, and any other acquisition costs.
How do I calculate cost basis?
Cost basis = Purchase Price + Acquisition Fees. For example, if you buy 1 BTC for $30,000 and pay $50 in fees, your cost basis is $30,050. When you sell, subtract this cost basis from the sale proceeds to calculate your capital gain or loss.
Why is cost basis important?
Cost basis determines your taxable capital gains. A higher cost basis means lower gains and less tax. Accurate cost basis tracking is essential for IRS compliance, minimizing taxes, and avoiding penalties during audits.
Is this calculator free?
Yes! Our cost basis calculator is completely free with unlimited calculations. No registration required. Track all your investments and calculate accurate cost basis for tax reporting.
What fees should I include in cost basis?
Include all acquisition costs: trading fees, exchange fees, gas fees (for crypto), broker commissions, and transfer fees. These increase your cost basis, which reduces your taxable gain when you sell.
Can I use this for cryptocurrency?
Yes! This calculator works for crypto, stocks, and any investment. Track Bitcoin, Ethereum, or any asset. Include gas fees and exchange fees in your cost basis for accurate tax calculations.
How does cost basis affect taxes?
Capital Gain = Sale Price - Cost Basis. A higher cost basis means lower taxable gains. Including all fees in your cost basis is crucial for minimizing taxes. The IRS requires accurate cost basis reporting on Form 8949.
What if I don't know my cost basis?
Check exchange records, wallet transaction history, bank statements, and email confirmations. If records are lost, reconstruct from available data. For gifts, use the donor's cost basis. For inherited assets, use the fair market value at date of death.
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