What Does Year Acquired Mean for Tax Purposes?

On a tax form, “year acquired” means the calendar year you first became the legal owner of the asset, whether you bought it, inherited it, received it as a gift, or got it through another kind of transfer. The exact date within that year depends on how the asset came to you, and it drives your holding period, your cost basis, when depreciation starts, and how long you need to keep the paperwork.

Property You Bought

For most purchases, the acquisition date is the day ownership legally transferred to you, and the document that proves the transfer sets the date.

Real Estate

For a house or land, the acquisition date is the closing date — the day the deed transfers to you and you take on the mortgage. The closing disclosure records that date, and it becomes the permanent reference point for future tax calculations.

Vehicles and Other Personal Property

For a vehicle, the acquisition date is the day the title transfers into your name or the date on the bill of sale, depending on which document your state uses to prove ownership. For furniture, equipment, and other personal property, the purchase receipt or invoice sets the date.

Stocks and Securities

When you buy stocks or bonds, the IRS uses the trade date — the day you placed the order — as the acquisition date, not the later settlement date when the shares actually land in your brokerage account. Your broker reports this date in column (b) of Form 8949 when you eventually sell.¹

Digital Assets

Cryptocurrency follows the same principle: the acquisition date is when the transaction executes, not when tokens show up in your wallet. Starting in 2026, digital asset brokers must report cost basis information to the IRS on Form 1099-DA, including the acquisition date for each transaction.² If you bought crypto on a decentralized platform or before broker reporting kicked in, tracking and proving the date is on you.

Property You Inherited

When you inherit property, the acquisition date is the date the original owner died, even if probate takes months or years to distribute the asset to you.³ That date also resets the property’s basis to its fair market value on that day, a rule known as the step-up in basis.⁴

The step-up can erase a large tax bill. If your parent bought a house for $100,000 and it was worth $400,000 on the date of death, your basis becomes $400,000. Sell it shortly after for that amount and you owe no capital gains tax on the $300,000 that accrued during your parent’s lifetime. An executor may instead elect the alternate valuation date, six months after death, if doing so lowers the estate’s total tax liability.⁵

Property You Received as a Gift

Gifts work very differently from inheritances. When someone gives you property during their lifetime, you take over the donor’s original basis and their holding period — you do not get a fresh basis or a new acquisition date at the value on the day of the gift.⁶ This is called carryover basis. If your uncle bought stock for $5,000 in 2010 and gifted it to you in 2024 when it was worth $25,000, your basis is still $5,000 and your holding period started in 2010.⁷

One wrinkle: if the donor’s adjusted basis was higher than the property’s fair market value at the time of the gift (meaning the property had lost value), your basis for calculating a loss is the lower fair market value at the time of the gift.⁶

For 2026, gifts to any one person up to $19,000 per year do not require a gift tax return.⁸ Gifts above that amount require Form 709, which records the transfer date and value. Keep a copy; you may need it years later when you sell.

Property Received Through Divorce

When property transfers between spouses or former spouses as part of a divorce, the tax code treats it like a gift: no gain or loss at the moment of transfer, and the receiving spouse takes over the transferring spouse’s basis and holding period.⁹ If your ex bought the house in 2015 for $250,000 and transferred it to you in a 2025 divorce settlement, your acquisition date is 2015 and your basis is $250,000 plus any improvements.

Property Received in a 1031 Exchange

In a like-kind exchange under Section 1031, you swap one investment or business property for another of the same type and defer the capital gains tax. Because the tax is deferred rather than eliminated, both the basis and the holding period of the old property carry over to the replacement. The clock does not restart.⁷

Buy a rental property in 2018, exchange it for a different rental in 2025, and the replacement property’s holding period still starts in 2018. Track the original acquisition date through every exchange in the chain, because the deferred gain compounds and eventually becomes taxable when you sell without doing another exchange.

Property You Built Yourself

For property you construct — a building, a piece of equipment, another business asset — the acquisition date for depreciation and tax purposes is the date the property is placed in service, meaning ready and available for its intended use.¹⁰ A building is placed in service when it is substantially complete and ready for occupancy, not when construction began.

Bonus depreciation adds a second date to watch: physical work of a significant nature (not just planning or design) must begin after a certain date to qualify. Under rules reinstated by the One, Big, Beautiful Bill Act, property acquired and placed in service after January 19, 2025, qualifies for 100% first-year bonus depreciation.¹¹

Why the Year Acquired Matters

Your Holding Period and Capital Gains Rate

The acquisition date fixes when your holding period started. Hold an asset more than one year before selling and any profit is a long-term capital gain, taxed at reduced rates. Hold it one year or less and the profit is short-term, taxed at your ordinary income rate.¹² The gain itself equals the sale price minus your adjusted basis.¹³ Getting the acquisition date wrong can flip a long-term gain into a short-term one and roughly double the tax on the profit.

When Depreciation Starts

Business and investment property lose value over time, and the tax code lets you recover that decline through depreciation. Depreciation begins when you place the property in service, even if you have not started using it yet.¹⁰ Under MACRS, each asset falls into a class that sets how many years you spread the deductions over.¹¹

The Wash Sale Rule

Sell stock at a loss and buy substantially identical shares within 30 days before or after, and the IRS disallows the loss under the wash sale rule.¹⁴ The disallowed loss gets added to the basis of the replacement shares, and the holding period of the shares you sold tacks onto the new ones.⁷ The replacement shares inherit the acquisition date of the ones you sold.

Records You Need to Prove the Date

Keep the documents that establish your acquisition date and basis for as long as they matter for a tax return — generally at least three years after filing the return that reports the sale. If you underreport income by more than 25% of gross income, the IRS has six years to assess additional tax.¹⁵

Useful records include closing disclosures for real estate, brokerage statements showing trade dates, bills of sale, title transfer records, gift tax returns (Form 709), estate tax returns (Form 706), and receipts for improvements that increase basis. For inherited property, request a copy of the estate’s valuation from the executor.

If the IRS finds you misstated an acquisition date and underpaid tax as a result — for example, by claiming long-term rates on what was really a short-term gain — you face an accuracy-related penalty of 20% of the underpayment, on top of the additional tax owed.¹⁶

1
Internal Revenue Service. Instructions for Form 8949
2
Internal Revenue Service. Final Regulations and Related IRS Guidance for Reporting by Brokers on Sales and Exchanges of Digital Assets
3
Internal Revenue Service. Gifts and Inheritances
4
Office of the Law Revision Counsel. 26 U.S. Code 1014 – Basis of Property Acquired From a Decedent
5
Internal Revenue Service. Publication 551 – Basis of Assets
6
Office of the Law Revision Counsel. 26 U.S. Code 1015 – Basis of Property Acquired by Gifts and Transfers in Trust
7
Office of the Law Revision Counsel. 26 USC 1223 – Holding Period of Property
8
Internal Revenue Service. IRS Releases Tax Inflation Adjustments for Tax Year 2026
9
Office of the Law Revision Counsel. 26 U.S. Code 1041 – Transfers of Property Between Spouses or Incident to Divorce
10
Internal Revenue Service. Publication 946 – How to Depreciate Property
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Internal Revenue Service. 2025 Instructions for Form 4562 – Depreciation and Amortization
12
Internal Revenue Service. Topic No. 409 – Capital Gains and Losses
13
Office of the Law Revision Counsel. 26 USC 1001 – Determination of Amount of and Recognition of Gain or Loss
14
Office of the Law Revision Counsel. 26 U.S. Code 1091 – Loss From Wash Sales of Stock or Securities
15
Internal Revenue Service. Topic No. 305 – Recordkeeping
16
Internal Revenue Service. Accuracy-Related Penalty