The Case For MLPs: K-1 Tax Benefits Add Value

The Case For MLPs: K-1 Tax Benefits Add Value
Share WantFI

Updated on April 6th, 2023

Pipelines and ships that transport oil and natural gas from the source in the ground to the processors and end users form a particular subset of the energy industry known as mid-stream assets and are usually structured as a Master Limited Partnership (MLP).

What are Master Limited Partnerships?

The Master Limited Partnership structure is a pass-through vehicle where income, depreciation and taxes flow through to the unit-holder (the name for a shareholder in a LP) and all these items are provided to the investor on a K-1 tax form at the end of the year.

In this article I discuss the unique benefits and taxes on master limited partnerships and show that the tax benefits are worth the tax accounting and reporting compliance costs, if certain conditions are met. I also discuss why MLPs are the cheapest they may have ever been.

The Problem With Master Limited Partnerships (Risks)

First we discuss the risks.

Low Commodity Prices

In April 2020, the front month futures contract for delivery of crude oil actually went negative, very negative:

The Case For MLPs: K-1 Tax Benefits Add Value
CNBC April 20. 2020

This had never happened before in the history of oil markets. For an exploration and production (E&P) company, which a midstream MLP provides transport services to, it is hard to make a profit with super low commodity prices. There is great pressure to cut production if it is not profitable to remove it from the ground. This is bad for an MLP because their business is fee based on how much they transport.

There Was Weakness in Demand

Master Limited Partnerships were feeling the blunt of a double whammy of supply and demand shocks at the same time.

Even before the COVID-19 crisis, electric cars were becoming popular and fuel mileage standards were being raised every few years. Population growth has blunted the effects of both of those headwinds.

Secure your web browsing privacy, especially if engaging in Crypto DeFi with a reputable VPN

But now due to the virus, commerce and tourism have all come to a grinding halt around the world. Planes aren’t flying as much, people aren’t driving as much, and cruise ships have become floating quarantine zones. The EIA and others forecasted a rare drop in oil demand across the globe in 2020.

Master Limited Partnership are Minimally Insulated Toll Roads

While most MLPs are pipelines and are not directly dependent on the price of the commodity they are transporting through their veins, they aren’t quite the “toll-road model” that many people got suckered into believing all the way up until the end of 2014.

They can never be fully insulated from the price of the commodity when the price a producer gets and the amount of driving and flying a consumer uses determines how much of the commodity is flowing through the pipeline. If a producer cannot make money with current prices, they will cut production and if a consumer is working from home for months on end, they won’t need to take gas out of a gas station. In both cases it means fewer fees can be charged by the midstream MLP that serves as the connection between the two parties (plus refineries along the way).

While many MLPs do have “take-or-pay” or “make-whole” contracts, which on paper guarantees a level of profit regardless of how much commodity flows through the pipeline, these guarantees have little value if the contracted party declares bankruptcy or the contract has to be fought in court over several years.

Most MLPs Are Highly Indebted

They’ve historically paid out all cash flow that they brought in and would finance their operations with additional secondary offerings and issuance of debt as needed. This is in contrast to regular companies when after they become profitable, start to finance their operations with retained earnings.

Investors got a wake-up call at the end of 2014 when commodity prices plummeted and found these firms were just way too debt heavy for the yield they were providing to investors. Correspondingly, the prices plummeted and yields rose. Dividends were cut, and prices fell some more in a circle of death that seems to have ended by late 2020.

Round two came where commodity prices made many E&P’s unprofitable. There is no general rule about what happens to the midstream pipelines if its upstream suppliers declare bankruptcy. It would depend on how many of their suppliers were affected and whether the upstream operations continue during the bankruptcy proceedings.

Many upstream operators did declare bankruptcy, but not much happened to the midstream producers (even for those joined at the hip such as Oasis Midstream Partners and Oasis Petroleum). That was a good sign of the industry.

Environmental, Social, Governance (ESG) and Index Investing Forces

ESG is the latest investing fad.

Index funds work by buying a proportional representation of the largest companies. The larger a company is, the more money it has allocated to it in an index fund. As more money flows into a company from active funds and individual investors, the market cap grows and needs to be reflected in the index. Therefore the index fund buys more of that company, creating somewhat of a self-fulfilling prophecy of capital allocation.

Even before the COVID-19 crisis caused a bunch of supply and demand issues for the oil and energy firms, ESG investing was already having an impact. Fossil fuel energy companies are generally frowned upon by ESG mandates and will not allocate capital to them (some mandates choose the least worst instead of not allocating at all). Near the end of 2018, there was $12 trillion of money allocated to these types of funds, proving it is a powerful tide to swim against.

Additionally, with the rise of passive investment in index funds, MLPs have been excluded from the fat trough of retirement money. This is because most pipelines use the MLP structure, and only C Corporations (C-Corps), where the corporation pays taxes as a separate entity, are allowed to be in the S&P 500. Consequently, MLPs aren’t hoovered-up indiscriminately like the FAANG stocks are from standard 401(k) biweekly contributions.

In 2020, the energy sector had the lowest representation in the S&P 500 since 1941. In 2021, it’s still a historically low representation. In fact, the valuation of Tesla outweighs the entire energy industry, if you can believe that one!

ESG leaves much of the investment space on the table; some of the highest yielding investment space, in particular.

MLPs K-1 Tax Forms Can Be Complicated

K-1 tax reporting is one of the largest annoyances about buying partnership structures. MLPs don’t pay taxes, you do. All of the accounting that usually happens at the corporate level gets mailed to you, for you to add to your personal tax return. The K-1 tax form potentially has a lot of boxes that end up in different parts of the individual’s tax return.

It has the potential to be a big tax headache which is why most regular investors play a game of avoiding them at all costs, which further adds to the structure’s cheapness. Some people just assume that the tax consequences aren’t worth the benefits, which is why I decided to run some analysis to find out and then created this article. The benefits can be quantified.

Multiple State Filings

You are supposed to file a state tax return in every state that your investment operates in, even if you don’t live in any of those states. Luckily, many states have a minimum income requirement before a filing is required, but this is not always the case. When you receive your K-1 tax form at the end of the year, they will tell you how much income applies to which state. It’s on you to determine if your income level is excluded, but if you are a smaller investor, you’ll likely be under most limits.

K-1 Forms Add Costs to Tax Preparation

A typical CPA will usually charge an extra $100 per K-1 form. It takes me about an hour to collect digital copies from the various sources, review, and type the information into my online tax software, which often requires clicking on a dozen drop-downs to choose the correct letter classification for a field.

Typing numbers is not hard, of course, but I find the process to be tedious because the typical MLP tax form has like 30 fields (multiply that by 3 for Energy Transfer (ET) which has two other partnerships inside it) that you need to type in and re-check since it is very easy to make a transcription mistake. So even if one doesn’t use a CPA, the hassle is not free.

However, some people still prefer to just dump their documents off at a tax professional like H&R Block and just come back later. Whichever way you do it, whether it’s online or in-person, let’s say that handling each form costs an extra $100 a year as a conservative estimate.

PRO-TIP: If you are US based, trade cryptocurrency and want to avoid the tax hassle see the Alto Crypto IRA. They support 150+ coins, there are no monthly or annual fees, no LLC setup fees, no processing fees, and they charge only 1% on each trade. Any cash waiting in your account is insured by the FDIC.

A priori, we can establish that larger investment sizes are better for reducing this relative compliance cost, since the numbers on the form only get bigger but the cost of handling the form stays the same. More on that later, but first I want to mention an important gotcha:

MLPs Are Not for Retirement Accounts

Are MLP distributions taxable in an IRA? There are specific times when it will be.

You might think that you could side step all the master limited partnership tax issues along with the tax form and just invest inside a 401k or IRA. However, you would be inviting taxation trouble with the Unrelated Business Taxable Income (UBTI). If you exceed the $1,000 limit you’ll have to pay tax on that amount and your IRA custodian will charge you an extra $300 fee for the privilege of filing for you. Not great.

Some people try to game this and buy small amounts to keep the income under the $1,000 limit and think they are safe, but upon the sale of the MLP you could potentially blow past that limit without realizing it. The depreciation recapture (discussed below) and the debt financed portion of the capital gains are also subject to the UBTI tax.

Ah ha! You may try to get slick and decide to throttle your sales to only a portion each year to keep you under the limit, which can work some of the times. However in many past years, a lot of Master Limited Partnerships converted their structures to C Corps or they merged or engaged in other corporate transactions, leading to the tax bills to came forth immediately. In that case, it would be totally out of your control and you would get hit with the tax, in addition to the $300 fee your IRA administrator will likely hit you with.

The moral of the story is just don’t put K-1 vehicles into your retirement account. The whole point of the MLP structure is for the unique tax benefits discussed below.

Master Limited Partnerships are also not for ETFs

There are several master limited partnership ETFs and ETNs in existence such as AMLP but the problem is that these funds collect the K-1 forms and pay taxes at the corporate level and then issue you a 1099. You might think that is great, but this leads to a tax drag on return every year since you are being taxed on the asset twice, just like a C-corp.

For example, back in the early 2010’s when MLPs were really running hot, the performance spread between the Alerian ETF and ETN had a 40% deficiency over 3 years.

The Case For MLPs: K-1 Tax Benefits Add Value
40% under-performance over 3 years from 2011 to 2014

There are some master limited partnership funds structured as a pass through where you receive the K-1 forms at the end of the year, but this has the potential to be a nightmare deluge of dozens of forms you are required to file, each one incurring a separate fee (or handling charge). And since most funds stick to a benchmark, you will end up with a lot of junk you’d probably rather not own anyway.

Why Are Master Limited Partnerships Good Investments?

It’s a Boring Business Model

Your investment isn’t going to triple in a few months like some high flying tech stocks, but pipelines have a consistent cashflow generating business model that drives the underlying engine of the economy. Slow but steady wins the race! Energy usage might decrease in a recession, but it won’t completely stop. Furthermore, the Master Limited Partnership structure is required by law to pay out 90% of earnings to limited partners (i.e. the stock investors).

MLPs Are High Yielding Assets

Which brings us to the next point of what exactly makes this investment attractive. Yields are easily greater than 7% and lots of them have yields greater than 10%. A lot of investors have been conditioned to fear high yields, but MLPs have higher yields for many reasons, and one of those is because they get special tax treatment, which we will discuss specifically in the next section.

Are MLP dividends qualified dividends? No, but they are pass-through entities that do not pay taxes at the corporate level, so

  1. There is more cash to pass to the unitholders, and
  2. The tax shields, discussed is the next section, are also passed to unitholders.

Unfortunately that special treatment comes at the price of an annoying K-1 tax form each year at tax time. We quantify the pros and cons of the MLP investment in the last section by balancing these two forces.

The Energy Industry is a Value Play

The whole sector was under strain in 2020. But even in 2022, MLPs are still a contrarian play and the goal is to find the select names that will survive and greatly reward shareholders through the carnage. The time to buy assets is when everyone else is getting out of them at any cost and is not willing to wait for better times. Pipelines are not going away. When the future looks bleak, assets are cheap.

MLPs Have Tremendous Tax Benefits

The main attractant is the cash flow that these real assets generate and these distributions are not qualified dividends. The tax treatment is very different, and how much a Master Limited Partnership can pay unit-holders is known as Distributable Cash Flow (DCF). The following 3 factors are the major tax benefits that accrue to holders of them.


Are MLP distributions taxable? Yes, but how much depends on the pipeline’s depreciation to income ratio.

Depreciation is one of the largest benefits for owning a Master Limited Partnership and it is one of the least understood factors of taxable income for the energy industry by laymen.

Depreciation is a non-cash charge against earnings, which accounts for the fact that depreciating assets have a limited life, and not all the money that is made from that asset is actually profit. Political opponents usually spin as a tax subsidy, but metal wears out, oil wells run dry and replacement becomes a real cost at some point, sometimes decades into the future. Depreciation spreads that amount across the projected life of the asset.

Therefore, similar to owning a real estate investment property, most of the distribution (i.e. dividend) is not immediately taxable because it is considered return of capital (ROC). This lowers your cost basis and this depreciation is paid back, or “recaptured,” at ordinary income rates when you sell, hopefully years later.

This is also one of the reasons why I strongly favor the traditional 401(k) and IRA. It better to receive tax breaks now while your tax rate is higher during your working years.

The ROC depends on the specifics of the MLP and is hard to forecast without looking at a prior year’s K1 form, but it is often about 80% of the distribution. If you have held one for a very long time (+10 years generally), your cost basis will go to zero and you will pay ordinary income rates on the part that doesn’t qualify for the Qualified Business Income (QBI) deduction.

Can the MLP cost basis be negative? No.

Qualified Business Income Deduction

Which brings me to the probably the best feature of investing in Master Limited Partnerships. The Tax Cuts and Jobs Act of 2017 signed into law the QBI and it means that partnerships and other pass-through entities, like REITs, get a 20% deduction of their income. This reduces the tax rate on the income you receive and reduces the depreciation recapture when you sell! The higher your marginal tax rate, the more valuable the partnership structure is to you.

So for example, if an MLP has a 80%/20% depreciation/income mix and you are in the 32% tax rate, your effective tax rate for current year’s distribution is only 5.12% (32%*20%*80%)!

The 20% deduction law is set to expire on Dec. 31, 2025 which means that the reduction on income and depreciation recapture might not exist for your entire holding period if a future Congress doesn’t renew the tax feature within the next few years. I include it here in my analysis because it is currently law and usually Congress renews laws of this type, but if it isn’t renewed, the benefit to holding MLPs will be reduced somewhat.  

Stepped Up Cost Basis Upon Death

The longer it is deferred, the longer that inflation eats the value of the depreciation recapture you will have to pay back when sold. That deferral is potentially indefinite if you die and pass the asset to your heirs. They will get the stepped up cost basis on any capital gains and the depreciation recapture bill goes away! This makes MLPs another great tool for estate planning while providing you with large cash flow stream in the meantime.

Feature Summary

  • (+) High yield.
  • (+) High percentage of the distribution is tax deferred.
  • (+) QBI 20% deduction on income portion.
  • (-) Recaptured depreciation paid back at ordinary income rates upon sale.
  • (+) Stepped-up-cost basis upon death.
  • (-) Multiple state tax forms need to be filed for large investments.

Important Factors In the Value of the K-1 Tax Investment

Each individual will have different tax treatment depending on how long they have held, how much they own, and not only if they live in a state with state income tax, but also if their pipeline investment operates in state with state income tax.

Will You Spend Time Doing Master Limited Partnerships Homework?

MLPs are extremely complicated investments with Incentive Distribution Rights (IDRs), non-controlling interests, asset drop-downs, multiple share classes, DCF coverage ratios, parent sponsor considerations, and different basins or territories (and country laws for ships). These are investments you really have to run through the SEC filings if you are going to have confidence in your investment. Looking at a few ratios really isn’t going to cut it, so if you’ve spent less than two hours on a Master Limited Partnership and have a decision to buy it, you probably haven’t researched it enough!

This is an implied cost but is hard to quantify. You decide for yourself.

However, once you have done your homework and have narrowed down a good company (some suggestions at the end), then we can apply the considerations for when the MLP structure is preferable.

How Much Does The MLP Yield?

In most circumstances, I would say generally that it would not be worth it to buy into a Master Limited Partnership with a 5% yield or less since there are hundreds of corporations and funds that have similar yield, without the extra paperwork. The point of MLPs is cash flow, so wait until the prices are attractive enough to yield plenty of it (like in 2020-2022).

With the average MLP yield pushing 8%+ in 2022, this requirement is an easy hurdle to jump over right now, but it hasn’t always been the case. They were hot back in 2014 when yields were being pushed under 5%, and people were going nuts buying them hand over fist! The space subsequently lost more than 50% of its value as a group, so yields have come back.

Will You Hold a Long Time?

The second consideration is that it needs to be a serious investment with a lot of capital committed and a long time frame to overcome the tax preparation costs and to defer the tax bill as long as possible, respectively.

If you are going to invest $5,000 and make $500, but then have to pay $100 for the K-1 taxation handling resulting in 20% of your cash flow being eaten up by tax paperwork, clearly it’s not going to be worth it. Similarly, if you are going to buy it and sell it within a couple of years (assuming nothing bad materialized forcing the sale) then the value of the tax deferral isn’t going to amount to much.

How much capital should you commit? The tables below show the more and longer, the better. To make it worthwhile, it probably needs to be at least $20,000, but preferably $50,000 to $100,000 per MLP.

And what is a long time frame? At least 5 years, but preferably longer than 10 years.

These two conditions likely exclude most people from putting MLPs into consideration at all. It takes a lot of confidence to invest that much for that long. And frankly, most people don’t hold stocks longer than a single year so it’s hard to imagine a shift to a holding period 10-20 times as long.

Ten years is probably about the longest you would be able to hold onto one due to the fact that the average MLP lifespan really doesn’t seem much longer than that. Plenty have either reorganized or converted to C-Corps, gone through bankruptcy, have been combined into new entities through mergers or have been acquired. Each one of those events is going to make the tax man cometh.

And there is a lot of pressure for them to undergo conversion to C Corps due to the tax compliance burden of investors and for raising capital. The CEOs of the two largest, Energy Transfer (ET) and Enterprise Products Partners (EPD) own large stakes in their own companies and have expressed desire to remain as MLPs for tax purposes. They could change their minds at any time, however.

Tax Laws Change More Frequently Than In The Past With Partisan America

There is no guarantee that the favorable tax laws for Master Limited Partnerships will exist when you sell. You can only assume that the current law is what will apply to your investment in the future, but you have to be aware of changes when they happen.

K-1 Tax Benefit Analysis

So back to the original question, is the taxation and K1 form headache worth the extra yield and deferment? I show quantitatively the answer is yes with the $100 per form compliance cost assumption and this section shows the math as to why. However, you’ll have to make sure you have an investment with a well covered distribution and not at risk of a bankruptcy. I’m not claiming that every MLP is worth it, I’m just trying to show you the value of two similar assets with different tax treatment, everything else the same.

In the tables below, I show the value of them against two types of assets, a REIT, which is also a pass-through entity that qualifies for the 20% deduction and a C-Corp which has to first pay taxes on its earnings before paying a dividend. The only advantage over a REIT is the tax deferral, but for the C-Corp it is the tax deferral, the fact that distributions are not first taxed before being paid out, and there’s a 20% deduction in income.

There are many parameters to adjust and all of them have an impact, so I only show a few cases here.

Say you are a high income earning family in the 32% tax bracket, with a 5% state tax and the MLP is yielding 8%, with a $25,000 investment, 10 year time horizon and inflation of 2% per year. The benefit of the MLP over the REIT, after paying the CPA for the K-1, is about 16 bps (0.16%) per year (shown in Table I). Again, that is AFTER factoring in the $100 a year CPA charge.

The after-tax value of an investment in a MLP versus a REIT. The MLP structure adds an extra 16 bps a year.
The after-tax value of an investment in a MLP versus a REIT with $25,000. The MLP structure adds an extra 16 bps a year.

But compared to a C-Corp (whose effective yield is then 6.32%) is where MLPs really shine at 53 bps per year, as shown in Table II.

 The after-tax value of an investment in a MLP versus a Corp. The MLP structure adds an extra 53 bps a year.
The after-tax value of the investment versus a Corp with $25,000. The MLP structure adds an extra 53 bps a year.

The more you invest, the higher the inflation, the higher the yield on the MLP and the longer the investment term, the more the benefit to the structure.

If we bump the amount invested to $50,000 for a ten year term, I estimate the benefit to be 29 and 66 bps, respectively, as shown in Table III and IV.

The after-tax value of an investment in a MLP versus a REIT with $50,000. The MLP structure adds an extra 29 bps a year.
The after-tax value of the investment versus a REIT with $50,000. The MLP structure adds an extra 29 bps a year.
The after-tax value of an investment in a MLP versus a Corp with $50,000. The MLP structure adds an extra 66 bps a year.
The after-tax value of the investment versus a Corp with $50,000. The MLP structure adds an extra 66 bps a year.

Diminishing returns starts to kick in as the amount invested increases and so if the investment is bumped to $100,000, the improvement is then only 35 and 72 bps, respectively.

In the unlikely scenario that you can commit $50,000 for 20 years, after about 15.5 years, an 8% yielder with an 80% depreciation mix will bring the asset’s cost basis to zero at which point your depreciation shield is gone. Therefore, taxes will increase a little.

It’s a subtle, but not huge impact on the numbers. In this scenario, the gain over REITs is 42 bps a year and over C Corps, 68 bps a year.

MLPs Have a Cost Adjusted Benefit

Remember, those extra returns calculated above are AFTER factoring in the cost of the tax preparation, so the tax benefits of the Master Limited Partnership structure add excess return to the investment. In other words, the advantages of MLPs do outweigh the disadvantages, if your investment is large enough and you are planning to hold long enough to reap the deferral benefit to cover the explicit or implicit cost of the K-1 tax form preparation.

Since volatility is the Achilles’ heel of long-term investments, you might want to consider putting your MLP and other long-term holdings into a separate account that you don’t view that regularly so that you aren’t enticed to sell at a moments notice. Pipelines are real assets, just like houses are, and you don’t check the value of your house every day and consider selling if it has lost value in the short term. MLPs should be treated similarly and only should be sold if a major negative development has impacted the company’s future operations.

The Best MLPs of 2023

Do your own due diligence on every investment but to get you started you should check out the following to see if they meet your criteria. I have positions in all of them.

EPD – Enterprise Products Partners, in my view the gold standard.

MPLX – Marathon’s midstream, high yield and well covered

PAA – Plains All American (PAGP, 1099 version)

GLP – Global Partners

Share WantFI

Free Investing Tools

For advanced traders who want direct access to exchanges without “payment for order flow” shenanigans choose Interactive Brokers.

I use Axos Bank for its no-fee business account with free bill pay.


After graduating with $75,000 in student loan debt, Ryan began a professional career in finance, aggressively saved and invested and became a self-made millennial millionaire in early 2019. He holds a Master's degree in Computational Finance, a Master's degree in Economics, and a Bachelor's degree in Mathematics. His two passions are investing and traveling.