In some situations, it may make sense for an investor to harvest gains rather than losses, especially if they can take advantage of a lower tax rate in the current year. For example, if the tax rate is expected to rise in the following year, harvesting gains now could help an investor pay taxes at the current, lower rate.
Example: Emily’s Gain Harvesting Decision in 2024
Emily owns 1,000 shares of DEF Corp with a cost basis of $1,000 per share, and the current market value is $1,100 per share. Emily faces the decision of whether to sell the stock in 2024 (paying a 15% capital gains tax) or wait until 2025, when the tax rate increases to 20%.
If she sells in 2024:
She realizes a gain of $100,000 ($1,100 – $1,000) and pays 15% in taxes:
Tax = $100,000 × 15% = $15,000.
If she waits until 2025:
The same $100,000 gain is taxed at 20% in 2025:
Tax = $100,000 × 20% = $20,000.
Emily’s decision ultimately depends on her ability to invest the $15,000 saved by paying taxes earlier. If she can invest that $15,000 at an after-tax return of 5% per year, the amount would grow as follows:
- Future value of $15,000 invested at 5% for one year = $15,000 × (1 + 0.05) = $15,750.
In this case, if Emily expects her investment to grow more than the $5,000 saved by waiting for the higher tax rate, she should harvest the gain now.
Opportunity Cost Threshold
The after-tax opportunity cost of capital necessary to make deferring the tax payment worthwhile can be calculated. For Emily, if her investment grows at more than 33.33% in one year, it would be better to defer the tax payment until 2025.
- 33.33% growth on $15,000 = $15,000 × (1 + 0.3333) = $20,000.
If her investment grows at this rate or more, deferring the tax to 2025 would be the better choice. However, in most cases, Emily would likely benefit from harvesting the gain in 2024, paying the lower tax rate now.