Yes. Enterprise Products Partners L.P. is a Master Limited Partnership, one of the largest in the United States, with units trading on the New York Stock Exchange under the ticker EPD. That structure gives you the liquidity of a publicly traded stock and the tax treatment of a partnership, and the tax treatment is the part that changes your life as an investor. If you buy EPD expecting it to behave like a share of ExxonMobil at tax time, you will be surprised in March.
What “MLP” Actually Means for EPD
A Master Limited Partnership is a business organized as a partnership under federal tax law whose ownership units trade on a public exchange. Congress designed the structure to route private capital into domestic energy and infrastructure. The partnership itself pays no federal income tax. Income, deductions, and credits pass through to the individual unitholders, who report their share on their own returns.
That pass-through model eliminates the double taxation a regular corporation faces. A C-corp pays tax on its profits, then shareholders pay tax again on dividends. An MLP skips the first layer, which is why the cash distributions can be so large relative to comparable corporate dividends.
To keep this treatment, the partnership must earn at least 90% of its gross income from qualifying sources. Under federal law, qualifying income includes revenue from exploring, producing, processing, refining, transporting, and marketing oil, gas, minerals, and other natural resources, along with real property rents, interest, dividends, and certain commodity transactions.1Office of the Law Revision Counsel. 26 USC 7704 – Certain Publicly Traded Partnerships Treated as Corporations That income test is why most MLPs, EPD included, are midstream energy companies.
Why EPD Qualifies
EPD’s business is midstream energy infrastructure: pipelines, storage terminals, and processing plants handling crude oil, natural gas, natural gas liquids, and petrochemicals across the country. The most recent annual report puts the network at more than 50,000 miles of pipelines, over 300 million barrels of NGL, crude, petrochemical, and refined-product storage, and 14 billion cubic feet of natural gas storage.2Enterprise Products Partners L.P. Enterprise Products Partners L.P. 2024 Form 10-K Now Available
Revenue is predominantly fee-based. Producers pay EPD to move and store their product, so earnings track volume more than the daily price of oil or gas. That mix comfortably clears the 90% qualifying income test.1Office of the Law Revision Counsel. 26 USC 7704 – Certain Publicly Traded Partnerships Treated as Corporations
As a limited partner, you have no management authority, but your liability is capped at what you invested. The general partner runs the business. Public unitholders provide capital and receive distributions.
The Schedule K-1 Replaces Your 1099
This is the single biggest practical change from owning a regular stock. Corporate dividends arrive on a Form 1099-DIV that tax software handles in seconds. MLP income and deductions arrive on a Schedule K-1 (Form 1065).3Internal Revenue Service. Schedule K-1 (Form 1065) – Partner’s Share of Income, Deductions, Credits, etc.
The K-1 reports your share of the partnership’s income, losses, deductions, and credits. It can run to dozens of line items covering guaranteed payments, interest income, rental income, passive activity details, and various deductions, each with its own place on your personal return.4Internal Revenue Service. Partner’s Instructions for Schedule K-1 (Form 1065) Most of it flows to Schedule E of your Form 1040. Some items need additional forms.
Then there is timing. Partnerships must deliver K-1s by the 15th day of the third month after the tax year ends. For a calendar-year partnership like EPD, that is March 15.5Internal Revenue Service. Publication 509 (2026), Tax Calendars Many partnerships file extensions, and even the on-time ones cut it close to your April deadline. Plan on filing an extension most years, or at least plan your tax work around mid-March rather than early February.
Consumer tax software can handle a K-1, but state allocations and passive activity calculations create room for error. Many MLP investors pay a CPA familiar with partnership taxation, adding a few hundred dollars or more to annual preparation costs.
How EPD’s Distributions Are Taxed
EPD’s cash distributions are not dividends and the IRS does not treat them that way. Each distribution splits into a taxable income portion and a return of capital portion. The return of capital piece is where the MLP tax advantage lives.
EPD owns billions of dollars of physical infrastructure that generates large depreciation deductions. Those non-cash deductions pass through to you on the K-1 and often exceed the taxable income allocated to your account. The result is that a substantial slice of each cash distribution is treated as a return of your own capital rather than as current income. You owe no tax on that portion in the year you receive it.
The catch: each return-of-capital distribution reduces your cost basis in the units. Buy at $30, receive $2, with $1.50 classified as return of capital, and your adjusted basis drops to $28.50. That $1.50 isn’t forgiven. It is deferred, and it comes back as gain when you sell.
What Happens When Your Basis Hits Zero
Hold EPD long enough and accumulated return-of-capital distributions can push your basis all the way to zero. After that, every dollar of further cash distribution is taxable as capital gain in the year you receive it, even though you haven’t sold anything. The deferral advantage runs out. Long-term holders should track their basis every year and know that this inflection point exists.
The Step-Up at Death
One of the most overlooked MLP benefits is what happens when a unitholder dies. Heirs receive a stepped-up basis equal to the fair market value of the units on the date of death. All of the deferred gain from years of return-of-capital distributions is eliminated permanently. No recapture, no recognition of the prior owner’s accumulated deferrals. That makes EPD units attractive for buy-and-hold investors with estate planning in mind.
Losses Sit in Their Own Silo
Federal tax law treats MLP investments as passive activities, and publicly traded partnerships get stricter treatment than other passive investments. Losses from a publicly traded partnership can only offset income from that same partnership.6Office of the Law Revision Counsel. 26 USC 469 – Passive Activity Losses and Credits Limited You cannot use EPD losses to offset income from a rental property, from another MLP, or from any other source.
Unused losses carry forward and can offset EPD income in later years, and they become fully deductible when you sell all of your EPD units. But while you hold, each MLP sits in its own silo. Own five MLPs with three showing losses and two showing income, and you still cannot net them against each other.
Don’t Hold EPD in an IRA
Putting EPD in an IRA or 401(k) sounds like it should shelter the income. It creates a separate problem. The tax code imposes a tax on Unrelated Business Taxable Income earned inside tax-exempt accounts, and MLP operating income qualifies as UBTI. If total UBTI from all MLPs in one retirement account exceeds $1,000 in a year after a specific deduction, the account’s custodian must file IRS Form 990-T and the account owes tax on that income.7Internal Revenue Service. Unrelated Business Income Tax8Office of the Law Revision Counsel. 26 USC 512 – Unrelated Business Taxable Income
The $1,000 threshold is not per MLP. It applies to total UBTI across every partnership interest held in the same account. Cross it, and the retirement account itself pays tax at trust tax rates, which defeats the point of the shelter. Most advisors recommend holding MLP units exclusively in taxable brokerage accounts.
You May Owe Tax in Multiple States
EPD’s pipeline network runs through many states, and the pass-through structure means you owe a sliver of tax in every state where the partnership earns income. Your K-1 includes a state-by-state breakdown showing the allocation, and you are technically required to file a nonresident return in each of those jurisdictions.
The income allocated to any single state is often small. Many states have minimum income thresholds for nonresident filers, ranging from roughly $100 to over $15,000 depending on the state, and if your allocation falls below the threshold you may owe nothing. The filing obligation itself can still exist. You can usually claim credits on your home state return for taxes paid to other states, which prevents outright double taxation. The paperwork is real, and it is probably the most common complaint among MLP investors.
Selling Your Units
When you sell EPD units, every prior return-of-capital adjustment comes due. Your gain is calculated using your adjusted basis, which reflects all of the reductions from prior years. The lower your basis, the larger your gain.
The gain isn’t taxed at a single rate. The portion attributable to depreciation that was previously passed through to you is subject to recapture and taxed as ordinary income, not at the preferential long-term capital gains rate. For most MLP assets like pipelines and processing equipment, which are classified as personal property for depreciation purposes, recapture is taxed at your full ordinary rate with no special cap. The portion of the gain that exceeds the recaptured depreciation qualifies for long-term capital gains treatment if you held the units for more than a year.
Your brokerage will issue a Form 1099-B for the sale, but the cost basis shown on that form is often wrong for MLP units because brokerages rarely track K-1 adjustments. The correct gain calculation, incorporating every basis adjustment from every year’s K-1, is your responsibility.
Where to Get EPD’s Tax Documents
EPD maintains a Tax Package Support website with downloadable K-1 packages, a gain/loss calculator that tracks adjusted basis, and electronic delivery of tax documents. There is also a dedicated tax support line for K-1 and K-3 questions.9Enterprise Products Partners L.P. Tax Package Support. Tax Package Support The gain/loss calculator is the tool that fixes the basis problem brokerages get wrong at sale. Bookmark it before your first tax season as a unitholder.