What is cost basis? Why is it important?

capital gains cost basis fifo options trading taxes Mar 12, 2025

What is Cost Basis & Why Should You Care?

🧐 Ever heard of cost basis but not sure what it means? Do you even need to care as an investor or options trader?

Simple Answer:

💰 Cost basis is the original price you paid for an investment.
📊 It’s important when selling stocks or options because it determines your capital gains or losses (aka how much you owe in taxes).


Do You Always Need to Track Cost Basis?

No worries if you invest in a tax-advantaged account (like a Roth IRA)—you won’t owe taxes when selling.
In a taxable brokerage account? You’ll need to know your cost basis to calculate capital gains taxes when you sell.

👀 Not selling anytime soon? If you’re a buy-and-hold investor, cost basis won’t matter much until you sell.
🔥 Trading options? If you sell covered calls or cash-secured puts, cost basis plays a bigger role in your tax bill.


Methods for Calculating Cost Basis

🔢 Different cost basis methods impact how much tax you’ll owe:

📌 FIFO (First In, First Out) → First shares bought = First shares sold (default for most brokerages).
📌 LIFO (Last In, First Out) → Most recent shares are sold first.
📌 High Cost → Sells highest-cost shares first (lower gains, lower taxes).
📌 Low Cost → Sells lowest-cost shares first (maximizing capital gains).
📌 Tax Efficient → Strategically minimizes tax burden.
📌 Specific Lot Selection → You manually pick which shares to sell.


What’s the Best Strategy?

📊 FIFO is common (but could mean higher taxes if older shares were cheaper).
💸 Options traders may prefer "Low Cost" to maximize gains.
🔄 Long-term investors may prefer "High Cost" to keep lower-cost shares longer.

💡 Consistency is key. Choose a method and stick with it to avoid tax-time confusion! Not sure? Ask a tax pro.

Want to Make Passive Income Selling Covered Calls?

👉🏻Sign up for my FREE Passive Income Master Class.


Happy investing!
-Steve

 

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