Master Limited Partnerships -- for the Rest of Us

Looking for yield in this low-interest-rate environment? An MLP may be for you -- but be aware of the special tax implications.

May 4, 2014 at 1:30PM

Master limited partnerships. The term sounds a little intimidating to the retail investor. And there are good reasons for that -- which we'll get into in a bit. But they have plenty going for them, too -- and they do deserve some consideration for investors looking to increase the diversity of their portfolios, or find some income yield in a treacherous low-but-rising interest rate environment: Yields from master limited partnerships averaged 6.7% over the past year -- very substantially ahead of returns offered by most bonds, mortgage securities, fixed annuities, utilities, and other traditional income generators.

What is a master limited partnership?
A master limited partnership, or MLP, is simply a limited partnership that trades shares on a stock exchange.

So what's a limited partnership? It's a type of limited-liability entity distinct from C-corporations -- the type of company we're all accustomed to seeing on the stock exchanges. Like C-corporations, limited partnerships provide limited liability protection to all the passive investors in the company. So if the limited partnership goes bankrupt, losses for the financial backers are limited to their investment in the partnership. However, the general partner -- the entity that manages the day-to-day operations of the limited partnership -- takes on the burden of unlimited liability. The partner or partners who buy an interest over the exchange and take no role in running the business? These are the limited partners, and they enjoy the same advantage of limited liability as people who buy shares in C-corporations over the stock exchanges.

In practice, most MLPs are involved in activities like oil and gas drilling, pipelines and transportation, power production, timber, and the like. Because of their energy focus, they have benefited quite a bit from the recent energy boom, sparked by the discovery of new energy reserves, a boom in North Dakota oil production, pipeline expansion, and the fielding of fracking technology.

Vive la (tax) difference!
The chief attraction that MLPs have for higher-income investors lies in the special way they are taxed. Many readers will be familiar with real estate investment trusts, or REITs, and the special tax treatment they receive. MLPs are taxed in a similar fashion:

  • There's no income tax at the corporate level.
  • Therefore, there's no issue of double taxation of dividends, as you get with C-corporation shares.
  • Dividends flow to the individual tax returns of limited partners.
  • To qualify, 90% of the income of an MLP must come from activities in commodities, energy production, natural resources, and related activities.

MLPs, however, have an important tax advantage over REITs: the treatment of losses. REITs are corporations, not partnerships. They can't pass losses on to shareholders. But if an MLP has losses, it can pass those losses on to its limited partners, or unit holders -- allowing them to potentially cancel out gains elsewhere in their portfolios. (You don't want this to happen too often! It's better to own profitable MLPs than unprofitable ones. But it's better for the unit holder than having tax losses go unharvested at the individual level, as would be the case if the losses were taken by a corporation like a REIT.)

Loss harvesting in MLPs is strictly limited by a set of rules called passive activity rules. Blame that on a bunch of wealthy people before 1986 who abused the concept to avoid income taxes by creating assets to generate paper losses -- a real-life version of Why We Can't Have Nice Things.

Note: Gains and losses aren't the only thing that partnerships pass on to unit holders' tax returns. The other thing that gets passed on to unit holders is headaches. With publicly traded corporations, the CFO and a trained accounting staff handle all the complexities of the tax code and figure out taxes at the corporate level. With MLPs, though, there's no corporate-level income tax. There's no corporation to act as a buffer. So all the complexities of depreciation recapture tax and special tax characteristics of 1231 property and allowances for depletion and the whole nine yards get passed on to you directly. Every box on your K-1 form will represent a different type of income, gain or loss. It's going to be up to you and your tax advisor to make sense of them. Do not try to do this alone!

Investors can also benefit from a particular quirk of MLP taxation: tax deferral of a portion of dividend payments. A portion of your dividend is typically classified as "return of capital." That is, the MLP is returning some of your original investment to you.

How much is deferred? That differs from MLP to MLP.

The catch: Any dividends on which income tax is deferred must be subtracted from your cost basis, which will eventually increase the capital gains taxes you pay when you sell your interest in the partnership. Some of those gains, however -- anything attributable to deductions for depreciation -- will be taxed as ordinary income, rather than dividends or capital gains.

Still, it's generally a lower tax rate than you would see from paying full-boat dividend income taxes -- especially on overseas investments.

Each year, usually in February and March, MLP holders will receive a K-1 report from their general partner, detailing their dividend income for the previous year, including how much of that income qualifies for tax deferral.

Can I invest in MLPs through mutual funds?
Yes, you can! There are, in fact, a number of closed-end funds that focus on MLPs. If you're a hard-core index head, you might look into the Alerian MLP ETF (AMLP), which tracks the Alerian index of master limited partnerships. This fund has an expense ratio of 0.85, but it crams in "other expenses," mostly deferred income tax, as an expense. So depending on how you slice it, expenses can take a pretty big bite even out of the indexed portfolio. Currently, the fund sports a trailing 12-month yield of 6.15%.

The problem with the Alerian index, in practice, though, is even trickier. Because of the complex accounting, the Alerian MLP ETF trailed Alerian's own benchmark index by over 10% in 2013, and has lagged by 7% annualized since inception!

Clearly, then, the pure index approach is problematic within this relatively tight and illiquid market, with complicated tax accounting. There are some who would argue that a traditional market-cap-weighted index also causes problems in relatively small markets like MLPs. Take, for example, the Citigroup C-tracks ETN (MLPC). This fund isn't a pure index -- the manager believes that there are problems with pure cap-weighted indexing in smaller and less liquid markets especially, and instead builds an "index" based on a few key inputs -- chiefly a recent track record of dividend growth and trends in capital investment. The management team regards increases in capital investment as a very bullish sign, as well as dividend increases. Through year-end 2013, The Miller/Howard Fundamental Index's five-year track record outperformed the Alerian MLP Index, 35.24 to 29.55. By way of comparison, the S&P 500 Index would have netted investors 17.94% over the same period.

You can take a purely actively managed fund as well, if you want the instant diversification you can get with mutual funds -- though nearly all of them will be much more concentrated in 25 or so of the largest MLPs and heavily concentrated in oil, gas, pipelines and other natural resources. So you would get substantially less diversification than you otherwise would in a mutual fund.

One advantage to using mutual funds to hold MLPs: If you are holding the asset within an IRA, your IRA may be liable for a special kind of tax called the unrelated business income tax. Holding the assets in a mutual fund may help you sidestep that particular tax. The downside, of course, is that you have to pay an additional expense ratio to the fund company, and of course you have less control than you would if you owned the MLPs directly.

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