A non-dividend distribution is not taxable in the year you receive it, but it is not tax-free. It reduces your cost basis in the investment, so you owe more capital gains tax later when you sell. There are two situations where a non-dividend distribution becomes taxable sooner: if the distribution exceeds your remaining basis, the excess is an immediate capital gain, and if your basis has already been reduced to zero, every additional non-dividend distribution is taxed as a capital gain in the year you receive it.1Office of the Law Revision Counsel. 26 USC 301 – Distributions of Property
Why It Isn’t Taxed When You Receive It
The tax code treats a corporate distribution as a dividend only to the extent the company has current or accumulated earnings and profits behind it.2Office of the Law Revision Counsel. 26 USC 316 – Dividend Defined When a company pays out more than its earnings can cover, the excess is not a share of profit. It is a repayment of what you invested, which is why it is called a return of capital.3Internal Revenue Service. Topic No. 404, Dividends and Other Corporate Distributions
Because you are getting your own money back, there is nothing to tax at that moment. The company calculates the split between dividend and return of capital and reports it to you; you don’t make that determination yourself.
How the Basis Reduction Works
Your cost basis in a stock starts as what you paid plus transaction costs like commissions.4Internal Revenue Service. Topic No. 703, Basis of Assets Each non-dividend distribution comes off that basis, dollar for dollar. If you hold multiple lots bought at different times and can’t identify which shares the distribution relates to, you reduce the basis of the earliest shares first.5Internal Revenue Service. Mutual Funds (Costs, Distributions, Etc.)
A concrete example. You buy 100 shares at $50 each, so your basis is $5,000. Over three years you receive $800 in non-dividend distributions. Your adjusted basis is now $4,200. You owed nothing on the $800 as it arrived. When you sell those shares for $6,000, your taxable gain is $1,800, not the $1,000 it would have been without the distributions. The tax on that $800 was deferred, not erased.
When the Tax Actually Hits
At Sale
The most common trigger is selling the investment. Because every non-dividend distribution reduced your basis, your gain at sale is that much larger. If you held for more than a year, the extra gain is taxed at long-term capital gains rates; if a year or less, at your ordinary income rate.5Internal Revenue Service. Mutual Funds (Costs, Distributions, Etc.)
When a Distribution Exceeds Your Remaining Basis
If a non-dividend distribution is larger than the basis you have left, the portion above your basis is treated as a gain from selling the stock and is taxable in the year you receive it.1Office of the Law Revision Counsel. 26 USC 301 – Distributions of Property
After Your Basis Reaches Zero
Once accumulated distributions have brought your basis all the way down to zero, you are out of runway. Every additional non-dividend distribution is immediately taxable as a capital gain in the year received, even though you still own the shares.5Internal Revenue Service. Mutual Funds (Costs, Distributions, Etc.) Long-term or short-term treatment depends on how long you have held the shares.
How It Is Reported
For stocks, mutual funds, and ETFs, your brokerage puts the return-of-capital amount in Box 3 of Form 1099-DIV.6Internal Revenue Service. Instructions for Form 1099-DIV That figure does not go on your return as income. You use it to reduce your basis.
If Box 3 exceeds your remaining basis, report the excess as a capital gain on Form 8949, which then flows to Schedule D. The Form 8949 instructions state directly that once your basis is fully recovered, any further non-dividend distribution is a capital gain.7Internal Revenue Service. Instructions for Form 8949 (2025)
Master limited partnerships work differently. Distributions come through on Schedule K-1 (Form 1065), not a 1099-DIV. The K-1 reports your share of income, deductions, and distributions, but you generally have to track your basis yourself.
Where This Comes Up Most
Some investments produce return of capital routinely, which is why the question tends to matter.
REITs distribute most of their income and often classify part of it as return of capital because of depreciation on their real estate. The catch is timing: distributions may be initially reported as dividends and reclassified after the tax year closes, so a corrected 1099-DIV can arrive in February or later.
MLPs are pass-through entities that claim heavy depreciation and depletion deductions, so cash distributions often outrun taxable income and a large portion is return of capital. Their K-1s are known for arriving late, sometimes in March or April.
Closed-end mutual funds and some ETFs that maintain a fixed distribution rate can also pay return of capital when the distribution exceeds net investment income and realized gains. The IRS treats it the same way: basis reduction now, tax later.5Internal Revenue Service. Mutual Funds (Costs, Distributions, Etc.)
Recordkeeping Matters More Than You’d Think
The longer you hold a high-return-of-capital investment, the more your basis erodes, and the closer you get to the point where distributions become immediately taxable. Your brokerage may track some of this, but the IRS puts the burden on you to report the correct basis at sale.3Internal Revenue Service. Topic No. 404, Dividends and Other Corporate Distributions Keep records of every distribution and every basis adjustment.
The One Way the Deferred Tax Disappears
If you hold the investment until death, your heirs receive a stepped-up basis equal to the fair market value at the date of death. That step-up wipes out the accumulated basis reductions, so the deferred gain from years of non-dividend distributions is never taxed. For anyone selling in their lifetime, the tax is deferred, not forgiven, and it comes due when the shares are sold or when the basis runs out.