You buy shares through your broker like any other equity. You get dividends. But then tax season hits—and instead of a clean 1099-DIV, you’re handed a Schedule K-1 from an energy pipeline company you didn’t even realize operated like a partnership. Surprise.
Understanding K1 vs. 1099: Why It Matters for Your Taxes
A K1 isn’t just a nuisance. It’s a warning label. This form—officially IRS Schedule K-1 (Form 1065)—reports your share of income, deductions, and credits from a partnership. Unlike the 1099, which drops neatly into your return, the K1 can delay filing (many aren’t mailed until March), create state tax complications, and expose you to phantom income. And that’s exactly where people get burned.
Traditional corporations pay corporate tax before distributing profits. Dividends get reported on Form 1099-DIV. But partnerships like MLPs “pass through” earnings directly to investors. No corporate-level tax. Great in theory. Messy in practice. You could owe taxes on income you didn’t actually receive in cash. That changes everything.
And because MLPs often operate across multiple states—owning pipelines that cross 10+ state lines—you might owe taxes in jurisdictions where you’ve never lived. One investor I know got a tax bill from Louisiana after holding an MLP for nine months. He’d never set foot in the state.
How Pass-Through Entities Avoid Double Taxation
These structures exist to bypass double taxation. If a company earns $100 million, pays 21% in corporate tax, then pays dividends, shareholders get taxed again—that’s the old model. MLPs and certain REITs skip the first hit. The income flows straight to you. The trade-off? Complexity. More forms. More lines on your return. More room for error.
Partnership accounting treats investors as partial owners, not passive shareholders. So you’re not just getting a dividend—you’re receiving a distribution that may include return of capital, ordinary income, or capital gains. Each piece gets handled differently. A $1 distribution might reduce your cost basis by $0.80, meaning you’ll owe capital gains later when you sell—even if the stock price hasn’t moved.
Types of Entities That Issue K1s
Not all stocks are created equal. The vast majority—Apple, Microsoft, even dividend giants like JNJ—send 1099s. But certain sectors lean heavily on K1s. Energy infrastructure dominates the list. Think pipeline operators: Enterprise Products Partners (EPD), Energy Transfer (ET), Magellan Midstream (now part of ONEOK). These aren’t drillers. They’re logistics companies, often structured as MLPs to maintain tax advantages.
Some real estate entities issue K1s too, especially if organized as limited partnerships. Timber REITs like Rayonier (RYN) used to be classic examples—though many have shifted structures. Certain private investment funds traded on exchanges (yes, they exist) also fall into this bucket. If it’s labeled a “limited partnership” in the ticker description, brace for a K1.
MLPs: The Classic K1-Issuing “Stock”
Master limited partnerships are the poster children for K1 confusion. Over 90% of MLPs operate in midstream energy—transporting, storing, and processing oil and gas. They’re attractive for yield: many pay distributions north of 6%, sometimes hitting 8% or more. But that yield comes with strings.
The issue remains: MLPs require unitholders to file K-1s, which can complicate tax returns—especially in IRAs. Hold an MLP in a retirement account? The IRS may treat a portion of the income as unrelated business taxable income (UBTI). Cross $1,000 in UBTI annually, and the IRA could owe taxes. Nobody wants that.
And that’s where ETFs like AMLP (the Alerian MLP ETF) come in. They pool MLP exposure but issue 1099s instead. How? By structuring as a C-corp, absorbing the tax hit, and passing dividends. You lose some tax efficiency—but gain simplicity. It’s a trade-off. For many, it’s worth it.
But because AMLP is a corporation, it pays corporate tax before distributing dividends. That creates a drag. Over 10 years, AMLP’s total return lagged the index it tracks by about 1.2% annually. Not huge, but enough to matter. You’re paying for convenience.
Current MLPs That Still Issue K1s
As of 2024, major MLPs sending K1s include: Energy Transfer (ET), with a yield around 7.8%; Enterprise Products Partners (EPD), offering 6.3%; and MPLX (MPLX), yielding roughly 6.9%. These aren’t speculative names. EPD has raised its distribution for 24 straight years. Their operations are boring—which is the point. Pipelines don’t care about oil prices. They charge fees to move barrels. Volume is king.
Yet the sector’s popularity has waned. Since 2015, over 40 MLPs have converted to C-corps or been acquired. The reason? Investor demand for simplicity. Fewer K1s. Easier inclusion in ETFs and mutual funds. The shift started after tax law changes in 2017, which made C-corps more attractive. And that’s the quiet story: the slow death of the traditional MLP structure.
Why Some Companies Are Abandoning the K1
It’s not just investor preference. Administrative cost is brutal. Preparing K-1s for tens of thousands of unitholders—often across multiple states—costs millions annually. ONEOK’s acquisition of Magellan Midstream in 2023 cited “elimination of K-1 complexity” as a key synergy. Translation: save $4 million a year in compliance.
Plus, institutional investors hate K1s. Pension funds, endowments, and large mutual funds often avoid MLPs altogether. Too many forms. Too much tracking. So MLPs face higher capital costs. That explains why some convert. Sunoco (SUN) dropped its MLP structure in 2022. Delek Logistics (DKL) followed.
REITs and Other Entities That Might Send a K1
Most REITs are structured to issue 1099s. But exceptions exist. Private REITs, non-traded REITs, or those wrapped in partnership wrappers can issue K1s. For example, some timber or farmland investment trusts structured as UPREITs (umbrella partnership REITs) pass through K-1s if you hold units directly in the operating partnership.
The problem is transparency. A fund might say “invests in REITs” but not clarify whether it’s holding direct partnership units. Check the prospectus. Look for phrases like “you may receive a Schedule K-1” buried in the tax section. It’s often a one-liner on page 47. You won’t see it unless you’re hunting.
And because REIT income is largely rental-based, it’s typically classified as ordinary income on the K-1—not qualified dividends. That means you pay your full marginal rate, not the lower 15-20% bracket. A 5% distribution yielding $5,000 could cost you $1,500 in taxes at a 30% rate. Ouch.
Alternatives to K1-Issuing Stocks: Simplicity Wins
You want yield without the tax headache? Consider C-corp energy stocks. Exxon (XOM) yields 3.4%, pays a 1099, and has increased dividends for 40+ years. Or Chevron (CVX), at 4.1%. Lower yield? Yes. But cleaner tax treatment. No UBTI risk. No multi-state filings.
Or look at 1099-friendly ETFs. JPMorgan Equity Premium Income (JEPI) yields about 7% and issues a 1099. How? It uses options and holds mostly C-corps. Not a perfect substitute—but close enough for most retirees. JNK, the high-yield bond ETF, yields 8.2% and avoids K1s entirely. Debt isn’t equity, but it fills a similar role in a portfolio.
That said, none offer the same tax-deferred growth potential as MLPs. A big chunk of MLP distributions are return of capital—meaning they reduce your cost basis and delay taxes until sale. Over time, that can compound significantly. But we're far from it in terms of mainstream adoption. Most investors would rather sleep at night.
Frequently Asked Questions
Can I Hold K1-Issuing Stocks in an IRA?
You can—but should you? Technically yes. But if the K1 reports more than $1,000 in unrelated business taxable income (UBTI), the IRA owes taxes. Most custodians don’t handle that well. And you can’t deduct the tax—it comes out of the account. So while it’s allowed, it’s often a bad idea. Roth IRAs? Same rule applies. The IRS doesn’t care about the account type. Just the income.
When Will I Receive My K1 Form?
Unlike 1099s, which arrive by January 31, K-1s often come in March—sometimes early April. Why? Partnerships file later. Form 1065 is due March 15 (with extensions to September). So unitholders get their K-1s late. This can delay your tax filing. Plan accordingly. If you’re expecting a refund, you might wait weeks longer.
Do All MLPs Issue K1s?
Most do—but not all. Some have created corporate wrappers. For example, some exchange-traded notes (ETNs) like EMLP track MLPs but issue 1099s. They’re debt instruments, not equity. So no partnership status. But they come with credit risk and don’t offer voting rights. Suffice to say, they’re a workaround, not a perfect solution.
The Bottom Line
I am convinced that most individual investors should avoid K1-issuing stocks unless they understand the tax implications—and have a reason to accept the hassle. The yields look tempting. But after factoring in administrative burden, state tax risks, and UBTI exposure, the net benefit often evaporates.
Yes, there are exceptions. Sophisticated investors with large portfolios, access to good CPAs, and a long-term horizon might find value in direct MLP holdings. But for the rest of us? Go with the 1099. The simplicity is worth more than an extra 1% in yield. Let’s be clear about this: ease of management isn't trivial. It's a real financial advantage.
And honestly, it is unclear whether the MLP model survives another decade in its current form. The trend is obvious. Lower yields? Maybe. But fewer headaches? Definitely. We’re watching a structural shift in real time—one where investor convenience is finally winning over tax arbitrage. About time.