The Choice Few Investors Think About
Every investor knows that buying the right stock matters, but few realize that how you sell matters just as much. When you sell shares of an individual stock, your brokerage will ask how to determine which shares you’re selling. The options usually include FIFO vs LIFO, and sometimes Highest In or Average Cost.
Most people ignore the question and just accept the default. But this quiet setting can make a noticeable difference in your taxes and your long-term gains. Understanding it can be one of the simplest ways to improve your after-tax returns.
How Capital Gains Work
When you sell an investment for more than you paid, that profit is called a capital gain. If you’ve held the investment for less than one year, you’ll owe short-term capital gains taxes, which are taxed at your ordinary income rate.
If you’ve held it for more than one year, you qualify for long-term capital gains taxes, which are much lower for most investors. This one-year mark is one of the most valuable incentives in the tax code — and the method you choose when selling shares affects how often you actually reach it.
FIFO vs. LIFO: A Simple Example
FIFO stands for First In, First Out, meaning the first shares you bought are the first ones sold.
LIFO stands for Last In, First Out, meaning the most recently purchased shares are sold first.
Suppose you bought shares of a company several times over the past two years:
| Purchase Date | Shares Bought | Price per Share |
| January 2023 | 10 | $100 |
| July 2023 | 10 | $120 |
| January 2024 | 10 | $150 |
Now, in November 2024, you sell 10 shares at $180 each.
If you use FIFO, the 10 shares from January 2023 are sold first. Your profit is $80 per share ($180 – $100), and because you held them for more than a year, they qualify for long-term capital gains taxes.
If you use LIFO, the 10 shares from January 2024 are sold first. Your profit is $30 per share ($180 – $150). However, since those shares were held for less than a year, you’ll pay short-term capital gains taxes at a higher rate.
At first glance, FIFO seems like the obvious winner — you’re getting the better tax rate. But that’s only part of the story.
Comparison Chart: Selling Share Methods
| Method | Description | Typical Use Case | Tax Impact |
| FIFO | Oldest shares sold first | Common default method | More likely to trigger long-term gains sooner |
| LIFO | Newest shares sold first | Used for active traders or tax strategy | Can defer long-term gains; keeps older shares “aging” |
| Highest In | Sells highest-cost shares first | Alternative to LIFO; limits taxable gain | Minimizes realized gains immediately |
| Average Cost | Calculates blended cost basis across all shares | Often used in mutual funds | Simplifies records but removes control over tax timing |
Unlock the Strategy Behind LIFO’s Long-Term Tax Edge
The explanation above helps you understand how FIFO and LIFO differ, but the real advantage of using LIFO comes from a lesser-known tax timing opportunity. Continue reading to learn why LIFO can quietly outperform FIFO over time and how to use it effectively.
