How to use tax loss harvesting to boost your portfolio

Author: Tom Drake

Source: MapleMoney

For the average Canadian investor, the term tax-loss harvesting might sound complicated, but it's pretty straightforward, providing that you follow a few rules. In fact, a sound tax-loss harvesting strategy can result in significant tax savings over the years.

How does tax loss harvesting work?

Tax-loss harvesting occurs when you sell an investment that has dropped below its original purchase price, triggering a capital loss. The funds are then used to purchase a comparable investment in the hopes that it will increase in value over time, resulting in a capital gain. Any capital losses incurred on an investment can be claimed against capital gains, resulting in tax savings. Because capital gains inside registered accounts (RRSP, TFSA) are not taxed, tax loss harvesting is only for taxable, non-registered investment accounts.

Capital losses can be used to reduce capital gains in the current year, the three preceding years, or in any future year. For example, if you sold an investment at a $20,000 loss during the 2020 tax year, but didn't have a capital gain from the same year or any of the three preceding years, the loss can sit there, available to be used against future capital gains.

The CRA superficial loss rule

There are some guidelines you need to follow to execute a tax harvesting loss properly. If you don't, you may end up in trouble with the CRA, or wasting a tax savings opportunity. For example, after selling an investment for a loss, you cannot immediately repurchase the same investment at a lower price. This will trigger the CRA's 'superficial loss' rule, which prevents the repurchase of the same security within 30 days. The rule exists to prevent investors from gaming the system in order to avoid paying income taxes.

Yes, you could wait the 30 days, but you never know what will happen in the markets during that time. You could miss out on a major spike in the markets. Instead, what you want to do is purchase a comparable investment that should provide a similar return over the long run.

Tax loss harvesting ETF example

I'll use the following example to explain how tax-loss harvesting might work inside an ETF portfolio (not actual returns, for illustration only):

You invested $25,000 in an Index ETF in 2019, but the value has since dropped to $20,000. The funds are in a non-registered account, so you decide to sell the investment and reinvest $20,000 into a comparable ETF. The funds track a different index but have similar holdings. The MERs are identical, at .06%.

By realizing the capital loss on the first index, you are now able to tax loss harvest up to $5,000 against future capital gains on the second. And because the funds are comparable, you can expect to see similar returns over the long term.

Tax loss harvesting pros

When dealing with capital gains and losses on your taxable investment accounts, there are a lot of things to consider. To help, here's a bullet point list of tax-loss selling advantages:

  • Reduce taxes in non-registered investment accounts
  • Minimizes the negative impact of losses inside your portfolio
  • Integrate with portfolio rebalancing to improve your asset mix
  • Can be used strategically to save on taxes in future years

If you're not using a hands-off approach, consider consulting with a tax professional before implementing your own tax-loss harvesting strategy.

The bottom line on tax loss harvesting

Canadians are fortunate to have so many tax-sheltered investment options, including RRSPs, RESPs, and TFSAs. The best way to pay less tax on your investments is by maximizing your available contribution room in these registered accounts. Once you've done that, tax loss harvesting is a great way to find additional tax savings inside a taxable account. No one should take capital losses blindly, however. Look for opportunities to rebalance high fee investments that have dropped in value, and never take a superficial loss.

If you have capital gains from current or past years, consider using your capital losses to offset those first. Lastly, if you decide to look after your own tax-loss harvesting, make sure you consult with a tax professional first.

This article was written by Tom Drake from MapleMoney and was legally licensed through the Industry Dive publisher network. Please direct all licensing questions to