Buying property in a year you already had a big gain

You sold something and the gain is large. Now someone has suggested buying property before year end to soak it up. Whether that works depends on what kind of gain you have.

Deborah Daniel, CPA

5 May 2026 · 7 min read

A woman stands with arms folded in front of a wall covered in handwritten notes.

This comes up most often after a business sale, a large stock position being liquidated, or a property disposal. The gain is known, the tax on it is uncomfortable, and property looks like an answer because property generates deductions.

Sometimes it genuinely is an answer. Often the two events cannot reach each other at all, and the purchase happens for tax reasons that turn out not to exist.

The misconception

The belief is that a deduction is a deduction, so a large depreciation loss in the same year as a large gain will cancel some of it out. The tax system does not work as one pool. It works in buckets, and the walls between the buckets are the point.

What is actually happening

Two things have to line up. First, character. Income has a character, and losses have a character, and the rules restrict which can offset which. Rental losses are generally passive. Passive losses generally offset passive income. A capital gain on a stock sale is not passive income in that sense, and ordinary business profit is not either.

Second, the limitation rules. Even where the character works, there are limits on how much loss can be used against other income in a year, and those limits have moved several times in recent years. Excess amounts are not usually lost, but they are carried forward, which turns a plan for this year into a benefit in some future one.

The order you do these two things in changes the number, sometimes completely.

Where it does work, it works well. A large passive gain in the same year as a property producing large accelerated deductions is a genuine match. So is a situation where an exception applies to you and your rental losses are not treated as passive. Those are specific circumstances rather than general rules.

The number

When the match is real, the effect can be substantial, because the deduction is being applied against income taxed at your top rate. The range depends on the size of the gain, the character of it, the basis of the property, the reclassified share, your state and the limitation rules in force that year.

When the match is not real, the effect this year is zero and the benefit moves to a future year you cannot date. That is not a disaster, but it is a very different thing from what was promised, and it is worth knowing before you commit to a purchase.

What it actually requires

Several things, all of which are easy to miss under time pressure:

The purchase actually closing in the correct tax year, not merely being under contract
The property placed in service in that year, which is a different test from closing
The deductions being usable against the specific income you are trying to offset
A study commissioned and completed in time if acceleration is part of the plan
Financing that does not force a decision the tax answer would not support

Placed in service is the one that catches people. A building bought in December and not yet available for its intended use may not generate what the plan assumed.

Who this is not for

Anyone whose gain is a type the losses cannot reach. If your large number this year is a capital gain from selling securities and your rental losses will be passive with no passive income to meet them, the purchase does nothing for this year's bill. You may still want the property. Just do not buy it for this reason.

The same applies to a gain that is mostly ordinary income from an active business where you materially participate. The buckets do not connect, and no amount of enthusiasm from a seller changes that.

It is also not for someone who would not otherwise want the asset. A property bought under deadline pressure, at a price nobody negotiated hard, in a market nobody researched, is a bad investment with a tax justification attached. The tax saving is a share of the gain. The purchase mistake is the whole property.

The timing

Timing is the entire article. The gain year is fixed the moment the sale closes. Everything that could interact with it has to happen inside the same year, and most of it takes longer than people expect. A study takes weeks. A closing takes longer. December is not when this starts.

This is a planning question

By the time a return is being prepared, both events are history and the buckets are what they are. The version of this that works is modelled before the first sale closes, with the character of the gain identified first and the property decision made second.

Where this goes next