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Capital loss definition: How it works and tax benefits

  • Key takeaways

    • A capital loss occurs when an asset sells for less than was originally paid for it.

    • Capital losses can often be used to offset capital gains, reducing overall tax bill.

    • If losses exceed gains in a given year, some tax systems allow a limited amount to offset other income or carry forward to future years.

    • For immigrants with property abroad, a loss on a foreign asset sale needs the same careful currency-conversion recordkeeping as a gain.

    • Not every decline in an asset’s value is a realized capital loss; it typically only counts once the asset is actually sold.

A capital loss occurs when an asset sells for less than it cost. Here’s how it’s calculated, and how it can reduce a tax bill.

What is a capital loss?

A capital loss happens when an asset(opens in new window), such as property, stock, or a business interest, sells for less than its original purchase price, known as the cost basis. Like capital gains(opens in new window), capital losses are generally only “realized,” and therefore relevant for tax purposes, once the asset is actually sold, not simply because its value has declined while still held.

Why capital losses matter for your taxes

Capital losses aren’t purely a negative outcome from a tax perspective; they can often be used strategically:

  • Offsetting capital gains. A loss on one asset can typically reduce the taxable amount of a gain on another, lowering overall tax liability for the year.

  • Limited offset against other income. Many tax systems allow a capped amount of net capital losses to offset other income, such as wages, in a given year.

  • Carrying forward. Losses that exceed what can be used in the current year can often be carried forward to offset gains in future years.

Record-keeping tip

Keep the same level of detail for a capital loss as for a gain: the original purchase price, the sale price, the dates of each, and, for a foreign asset, the exchange rate applicable at both points. Because a loss can be used to offset gains from an entirely different transaction, having this on record makes it much easier to claim the benefit accurately when filing.

Capital losses and international assets

For immigrants with assets in multiple countries, a capital loss on a foreign asset, such as rental property that’s declined in value(opens in new window) or been affected by unfavorable currency movement, follows the same basic calculation as a domestic loss, but with the added complexity of currency conversion at two different points in time. It’s possible for an asset to show a loss in local currency terms but a different result once converted to a reporting currency, or vice versa, depending on how exchange rates moved between purchase and sale.

Understanding the rules for claiming a foreign capital loss, including whether it can offset gains on domestic assets, depends on specific tax residency and situation, making this an area where professional guidance adds real value rather than just caution for its own sake.

How much of a capital loss you can actually deduct

If capital losses exceed capital gains in a given year, a limited amount can generally be deducted against other income, with any remaining loss carried forward to offset gains in a future year. Understanding this limit helps in planning realistically rather than assuming a large loss will fully offset a tax bill in the same year it occurred.

Wash sale rules worth knowing before repurchasing

Selling an investment at a loss and buying back a substantially identical investment within a short window can trigger the IRS’s wash sale rule, which can disallow the loss deduction entirely, a detail worth understanding before quickly repurchasing something just sold specifically to claim a tax loss.

Why documenting the original purchase price matters

Calculating a capital loss accurately requires knowing the original cost basis, the amount originally paid, so keeping purchase records for any significant asset, even one not planned for sale soon, saves considerable difficulty reconstructing that figure years later when a sale actually happens.

Common questions about capital losses

  • Can a capital loss on a foreign property offset a gain on a U.S. investment?

    In many tax systems, yes, capital losses and gains are often netted together regardless of where the underlying asset is located, though the specific rules and any limits depend on tax residency and situation. Confirming this with a tax professional familiar with cross-border taxation is worth doing to understand how it applies to a specific case.

  • Does a decline in my property’s value count as a capital loss?

    Not until the asset is actually sold. A capital loss is realized at the point of sale, comparing what was originally paid to what it sold for. A property currently worth less than what was paid, but still owned, represents an unrealized loss, which generally isn’t relevant for tax purposes until a sale occurs.

  • What happens if my capital losses exceed my capital gains in a year?

    Many tax systems allow a limited amount of net capital losses to offset other income in the same year, with any remaining loss carried forward to future years. The specific limits and carryforward rules vary, so checking current guidance or consulting a tax professional is worthwhile.

In Summary

A capital loss, while not the outcome anyone hopes for when selling an asset, can still provide a real tax benefit by offsetting gains elsewhere. For immigrants with assets abroad, tracking the purchase and sale details in both currencies, along with the applicable exchange rates, ensures the loss is calculated and claimed accurately.

This publication is provided for general information purposes only and is not intended to cover all aspects of the topics discussed herein. This publication is not a substitute for seeking advice from an applicable specialist or professional. The content in this publication does not constitute legal, tax, or other professional advice from Remitly or any of its affiliates and should not be relied upon as such. While we strive to keep our posts up to date and accurate, we cannot represent, warrant, or otherwise guarantee that the content is accurate, complete, or up to date.

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