Tax-loss harvesting rules and traps (UK)
Tax-loss harvesting in the UK involves selling investments at a loss to offset capital gains tax liabilities. However, investors must be cautious of the “bed and breakfasting” rule, which disallows claiming a loss if the same or substantially identical investment is repurchased within 30 days. Instead, the loss is matched with the new purchase, negating the tax benefit. Alternative strategies, like using ISAs or purchasing similar but not identical assets, can help navigate these traps.
Tax-loss harvesting rules and traps (UK)
Tax-loss harvesting in the UK involves selling investments at a loss to offset capital gains tax liabilities. However, investors must be cautious of the “bed and breakfasting” rule, which disallows claiming a loss if the same or substantially identical investment is repurchased within 30 days. Instead, the loss is matched with the new purchase, negating the tax benefit. Alternative strategies, like using ISAs or purchasing similar but not identical assets, can help navigate these traps.
💡 Key Takeaways
- Understand the purpose of tax-loss harvesting in the UK: selling investments at a loss to offset capital gains tax liabilities.
- Know the 30-day 'bed and breakfasting' rule: if you repurchase the same or substantially identical investment within 30 days, the loss cannot be claimed.
- Learn how losses are used: they can offset gains in the current year and can be carried forward to future years; they cannot offset ordinary income.
- Practical tips and traps: perform harvesting in taxable accounts (not within ISAs/pensions), avoid the 30-day trap by waiting 31+ days or choosing replacement investments that are not substantially identical, and keep clear records of disposals and replacements.
❓ Frequently Asked Questions
What is tax-loss harvesting in the UK?
Tax-loss harvesting means selling investments at a loss to reduce your capital gains tax on other gains. Losses can offset gains in the same tax year or be carried forward to future years. They cannot offset income, and you must report them on your Self Assessment tax return.
How does the bed and breakfasting rule affect losses?
If you sell an asset at a loss and then buy the same or substantially identical asset within 30 days, you cannot claim that loss for CGT in that year. The loss is deferred and added to the cost of the repurchased asset.
What counts as substantially identical investments?
Substantially identical typically means the same shares or the same share class, or a very similar asset such as an identical ETF or fund. If in doubt, treat the assets as identical for CGT purposes.
Can capital losses be carried forward to future years?
Yes. Capital losses can be carried forward indefinitely to offset future capital gains. You must report the loss on your Self Assessment return; losses cannot be used to offset income.
What practical steps help avoid bed and breakfasting traps?
Plan ahead to avoid the 30-day window. If you need to crystallize a loss, wait at least 31 days or switch to a different asset. Keep clear records of disposals and cost bases, and seek tax advice for complex holdings.