Wash sales

The wash-sale rule is a securities rule, but it matters to real estate investors for a revealing reason: real estate is not subject to it. Understanding what the rule blocks for stocks, and why it does not reach real property, clarifies both how to harvest losses correctly in your securities portfolio and a planning move available to real estate that a stock investor simply cannot make. It is a small rule with an outsized lesson about how the two asset classes are treated differently.

What the wash-sale rule does

The wash-sale rule, under Section 1091, prevents you from claiming a tax loss on a security if you buy the same or a substantially identical security within 30 days before or after the sale. The window is 61 days total: 30 days before, the day of sale, and 30 days after. Sell a stock at a loss and rebuy it inside that window, and the loss is disallowed for now.

The logic is that you have not really changed your economic position, you sold and rebought essentially the same thing, so the tax law refuses to let you harvest the loss while staying invested in the identical asset. The disallowed loss is not lost forever; it is added to the basis of the replacement shares, so you get it back when you eventually sell those without repurchasing. But you cannot have the loss now and the position now. This is the main constraint on tax-loss harvesting in a stock portfolio: to harvest a loss, you must either stay out of the security for the window or buy something similar but not substantially identical.

The wash-sale rule disallows a loss on a security if you buy the same or a substantially identical security within 30 days before or after the sale, deferring the loss into the replacement’s basis.

Why real estate escapes it, and what that opens

Here is the point that matters for real estate investors: the wash-sale rule applies to stocks and securities, not to real property. Real estate is not a security, and each property is unique, not “substantially identical” to another, so the rule does not reach direct real estate transactions.

This creates a flexibility that stock investors lack. In concept, a real estate investor is not blocked by a wash-sale rule from recognizing a loss on a property and reinvesting in similar real estate, because the rule simply does not apply to real property. The practical caveats are real: selling real estate at a loss to a related party runs into different rules, and the 1031 exchange rules govern when you defer gains on like-kind real estate, but the specific wash-sale prohibition that constrains securities harvesting is absent for real estate. So the mechanics of realizing and using losses differ meaningfully between your stock portfolio and your property portfolio, and the difference favors real estate on this narrow point.

The wash-sale rule does not apply to real estate, because property is not a security and each parcel is unique, so the specific repurchase restriction that constrains stock-loss harvesting is absent for real property.

Where it actually touches a real estate investor

The rule reaches a real estate investor mainly at the intersection with their securities portfolio, which is exactly where loss harvesting to offset a property gain happens. When you sell an appreciated property and generate a large capital gain, you might harvest losses from your stock holdings to offset it, and there, in the securities portfolio, the wash-sale rule applies in full. So you cannot sell a losing stock to offset your property gain and then rebuy that same stock within the window, that would disallow the very loss you were harvesting.

The clean approach is to harvest the securities loss and either stay out of that position for the 61-day window or rotate into a similar-but-not-identical holding, so the loss survives to offset your real estate gain. This is the seam worth remembering: the property sale is free of wash-sale concerns, but the stock-side harvesting you use to shelter it is not, so the discipline lives on the securities side of a combined strategy. One evolving note: proposals have periodically sought to extend wash-sale-style rules to other assets like cryptocurrency, so the boundaries here are not permanently fixed.

When you harvest stock losses to offset a property gain, the wash-sale rule applies to those stock trades, so you must avoid repurchasing the same security within the window to keep the loss.

The bottom line

• The wash-sale rule disallows a securities loss if you rebuy the same or substantially identical security within 30 days.
• The disallowed loss is added to the replacement’s basis, so it is deferred, not permanently lost.
• Real estate is not subject to the wash-sale rule, since property is not a security and each parcel is unique.
• That gives real estate a loss-harvesting flexibility on this narrow point that securities lack.
• When harvesting stock losses to offset a property gain, the wash-sale rule still governs those stock trades.

For the strategy it constrains, read tax-loss harvesting. For the gain you might offset, see capital gains tax on real estate. For the full picture, start at the advanced real estate tax strategies hub.

Last verified August 2026.