Do I have to hold inherited property before I can 1031 it?

The Code sets no waiting period, so intent at the exchange is the test

Section 1031(a)(1) requires real property "held for productive use in a trade or business or for investment", exchanged for like-kind property to be held the same way. It names no number of months. Section 1031(a)(2) excludes real property held primarily for sale, which is the real limit for an heir who lists the house the week after the funeral.

The courts read the holding requirement as a question of intent. In Bolker v. Commissioner, the Ninth Circuit held that if a taxpayer owns property "which he does not intend to liquidate or to use for personal pursuits", he is holding it for investment. Bolker received the property in a corporate liquidation and contracted to exchange it the same day, and the exchange still qualified.

The only bright-line clock the IRS has published is in Rev. Proc. 2008-16, and it covers dwelling units with personal use: 24 months of ownership with at least 14 days of fair rental in each of two 12-month periods. It is a safe harbor, not a requirement, but it is a useful benchmark for an inherited house that a family has also used.

The step-up in basis usually leaves little gain to defer at first

Section 1014(a) sets the basis of property acquired from a decedent at its fair market value on the date of death, or on the alternate valuation date if the executor elects it. Publication 551 adds that when an estate tax return is required, the executor may send you Schedule A of Form 8971, and certain beneficiaries must use that value as their starting basis.

Depreciation and appreciation from before the death disappear with the old basis. Under section 1223(9), you are also treated as having held the property for more than a year, so even a quick sale gets long-term rates. In community property states, Publication 551 notes the whole property, including the surviving spouse's half, generally takes the new basis.

So the honest first answer for many heirs is that a prompt sale costs little tax. An exchange makes sense when the property has risen in value since the death, when you have rented and depreciated it for years, or when you would rather own a different investment anyway.

Worked example: the same rental sold at month ten and at year six

Hypothetical, round numbers; run your own numbers with your CPA. Your mother bought a rental for $150,000. It is worth $900,000 when she dies, so your basis is $900,000. You sell ten months later for $950,000 and pay $50,000 in selling costs. Your gain is roughly zero, and an exchange would defer nothing worth the cost.

Now assume you keep renting it for six years, take $120,000 of depreciation on the building portion of your stepped-up basis, and sell for $1,300,000 net. Your adjusted basis is $780,000 and your gain is $520,000, of which $120,000 is unrecaptured section 1250 gain taxed at up to 25%, per [Topic 409]({L('tc409')}). That is the version where an exchange pays for itself.

Whoever holds title is the one who can exchange

The taxpayer who sells must be the taxpayer who buys. If the estate sells before distributing, the estate is the exchanger and the estate must take the replacement, which the executor manages under the executor's 1031 guide. If the property has been deeded to the heirs as co-owners, each heir can exchange or cash out their own share separately, which is the subject of splitting an inherited property among siblings.

Buying a sibling's share or buying from the estate brings in the related-party rules, because section 267(b) treats siblings as family and an executor and a beneficiary as related persons. That situation is covered in buying a parent's house from the estate.

Moving in or using it as a vacation home is what changes the answer

Investment intent is undermined by personal use, not by a short ownership period. An heir who moves into the house, or lets family use it most of the summer, is holding it for personal pursuits, and an exchange made from that position invites challenge. Rent it at a fair rate, keep records, and keep personal use within the limits in Rev. Proc. 2008-16 if you want the cleanest file.

Heirs who do not want to manage a rental often exchange into something passive. A beneficial interest in a Delaware Statutory Trust lets each heir reinvest their own share separately, and the trade-offs are set out in DSTs for a simple inheritance and in the wider options for an inherited rental.