Admiral Research · The forces reshaping the industry · September 2026

How the IRS Fueled US Marina Roll-Ups

IRS rulings made marina slip rent count as REIT rent. That let listed REITs buy marinas. Once a national operator had public deal prices on the books, infrastructure funds could bid.

By John Howie, Co-Founder, Admiral

The list of who buys American marinas has changed beyond recognition in a decade: family operators and local banks gave way to listed REITs, and then to the infrastructure funds that own toll roads and data centers. The shift is easy to see. What drove it is not. Behind it sits a run of IRS rulings that began in 2013, the same mechanism that had already reclassified cell towers, data centers, and even casinos. The rulings did not change how a marina runs on the ground. They changed who was structured to own it.

Between 2013 and 2019 the IRS worked through those private letter rulings, treating marina slip income as qualifying REIT rent. Once that bar cleared, the natural buyer stopped being a local operator with a credit facility and became a listed REIT with a far lower cost of capital. Then, once public deal prices existed, infrastructure funds bid. The docks did not change. The tax code changed who could buy them at scale, and the same capital is now consolidating marinas in Europe.

• The IRS did not cut taxes for every marina owner. It made slip rent REIT-financeable.
• Boat slips and dry storage qualified first, in 2013. Through 2019 the rulings extended treatment to floating docks as real property, dry-storage and racking fees as rent, and related tenant support that is customary or routed through a taxable subsidiary or independent contractor.
• The first big REIT buyer was Sun Communities, which brought the largest marina platform into a public REIT in 2020 (later sold to Blackstone Infrastructure). Equity LifeStyle Properties, owner of the Loggerhead portfolio, is the other main listed marina REIT today.

Good income versus bad income

A REIT escapes corporate income tax by behaving like a pass-through for real-estate income. Three rules matter:

• 75% income test: at least 75% of gross income must come from real property (mostly rent).
• 90% payout: at least 90% of taxable income must be paid out to shareholders each year.
• 1% services trap: if a property earns more than about 1% of its income from impermissible tenant services, the IRS can treat all rent from that property as bad income, which can then break the 75% test for the REIT.

Here is the catch that shaped every marina deal. Under the 1% rule, if more than about 1% of a property's income comes from services, the IRS can treat that property's entire rent as bad income. A marina is full of services: fuel, repair, restaurants, retail. So you cannot simply drop a marina into a REIT. The rent for space goes in the REIT; the service businesses are carved into a taxable REIT subsidiary, a separate taxable company the REIT owns, or handed to an independent contractor the REIT earns nothing from. Two books, one marina. That carve-out is why the marina rulings ran from 2013 to 2019, and it is the operating blueprint for anyone who wants institutional capital.

Good income, bad income: a typical marina

The split is not just tax hygiene. It is value engineering. Income that qualifies as rent earns the tight cap rate a buyer pays for real estate; the service income in the subsidiary is worth a lower multiple. So the more of a marina's dollars that honestly sit on the good-income side, the more the whole asset is worth. The cleverness is at the edges: dry storage and racking fees count as rent for space, a fuel dock or restaurant run by an independent contractor stays off the REIT's books, and genuinely customary amenities (basic utilities, unattended facilities) do not count against the 1% line. The operators who get this right are not dodging tax. They are reshaping their income so an institution can underwrite it.

The sequence, in dates

• 2012 Cell towers: American Tower converts to a REIT. The template begins.
• 2013 Marinas: boat slips as REIT rent · Prisons · Casinos: The IRS rules boat-slip income is REIT rent. GEO and CoreCivic convert the same year (they left REIT status in 2021). Casinos convert too.
• 2014 Billboards: Billboards are ruled real property.
• 2015 Data centers: Equinix converts; the stock jumps roughly 9%.
• 2019 Marinas: docks, dry storage, related support: The marina rulings finish: floating docks count as real property, dry-storage and racking fees as rent. Marinas are now the latest asset class on the same path.

Boat slips and dry storage qualified first, in 2013. Through 2019 the rulings extended treatment to floating docks as real property, dry-storage and racking fees as rent, and related tenant support that is customary or routed through a taxable subsidiary or independent contractor. The sector repriced as the rulings stacked up, not on one date. A private letter ruling binds the IRS only to the taxpayer who requested it; confidence built as ruling followed ruling and tax counsel grew comfortable the treatment would hold.

This is a pattern, not a marina story

Marinas are the latest asset class on this path, not the first. The same kind of rulings treated cell towers, data-center racks, billboards, timber, prisons, and casinos as real property. Each ruling did the same thing first: it let institutions finance the asset inside a REIT. What happened next was not identical for every class.

Cell towers

American Tower REIT in 2012; Crown Castle in 2014. The majors largely stayed public.

Data centers

Equinix converted in 2015. Then infrastructure made the second leap: Blackstone took QTS private (~$10B); KKR and GIP took CyrusOne private (~$15B). Closest peer to the marina path.

Billboards & timber

Lamar and the timber REITs (Potlatch 2006, Weyerhaeuser 2010) mostly stayed listed REIT.

Prisons

GEO and CoreCivic converted around 2013 and left REIT status in 2021.

Marinas

Sun puts Safe Harbor inside a REIT in 2020 (~$2.1B). Blackstone Infrastructure takes it private in 2025 (~$5.65B). Same docks; next buyer.

The infrastructure buyer repriced it

The clearest proof is one platform changing hands twice. A public REIT bought Safe Harbor, the largest marina operator, in 2020 for about $2.1 billion, the first institutional-scale comp the sector had. Five years later an infrastructure fund bought it from the REIT for about $5.65 billion, a disclosed price of roughly 21 times its prior-year FFO, and the seller booked a disclosed book gain of about $1.3 billion on a four-year hold. Part of that jump is growth, Safe Harbor went from 101 marinas to more than 130, but the richer part is the multiple: a patient infrastructure buyer underwrites marina income at a lower return than a REIT does, so it can pay more for the same dollar of cash flow.

The exact entry multiple in 2020 was never disclosed, so the honest read is the exit, not a precise before-and-after. What is disclosed is enough: the asset cleared the bar to be owned by a listed REIT, and once it had, the next buyer up the capital stack paid an infrastructure price for it. That is the sequence the 2013 ruling set in motion.

Three buyer types, three rulebooks

Public REITs

Live under REIT bright lines. Slip rent must qualify as rents from real property. Today the main listed marina REIT is Equity LifeStyle Properties (NYSE: ELS), including the Loggerhead portfolio it owns outright. Loggerhead is not a separate REIT. Sun Communities held Safe Harbor from 2020 to 2025, then sold and exited marinas. There is no pure-play public marina REIT.

Infrastructure / PE funds

Infrastructure and private-equity funds play under different rules. Blackstone Infrastructure's 2025 purchase of Safe Harbor was a fund acquisition, not a REIT conversion. InfraVia's pending acquisition of D-Marin from CVC (Mediterranean premium marina platform, announced 2026) is the same buyer type in Europe. Those vehicles do not need slip income to qualify as REIT rent; they still benefit from US comps the REIT path created.

Family / private operators

No REIT tests. Ordinary tax and financing constraints. US PE platform capital (for example Centerbridge / Suntex) sits closer to this book than to REIT bright lines. The PLR wave did not rewrite their code. It changed who could sit next to them in an auction with cheaper, more patient capital.

Outside the US, the bottleneck is different

The US story hinged on a specific tax wrapper. Marina slip rent had to clear REIT tests before listed capital could own the asset at scale. That sequence does not travel intact overseas.

Europe and other markets still institutionalize marina ownership, but through different gates. National REIT regimes exist in several countries, yet there was no parallel public run of marina-specific rulings like the US private letter rulings of 2013 to 2019. Capital is often bound by tenure instead: many berths sit on municipal or state concessions rather than freehold land, with fixed terms, renewal risk, and different collateral for lenders and funds.

So the comparison is directional, not identical. Demand for scarce wet slips, roll-up operators, and infrastructure-style buyers show up abroad too. The US unlock was tax classification of marina rent. Abroad, the unlock is more often concession quality, lease length, and who controls the waterfront, not a copy of the IRS path.

Tax law opened the door. The capital coming through it can raise the asset, the experience, and the industry.

That is the optimistic read, and it holds. As the capital markets reprice marinas, the money flowing in does more than lift the bid. Put to work, it funds better docks, a better experience on the water, and a more professional industry. The IRS decided who could own the asset. What that capital builds next is the opportunity.

Regulatory history as of September 2026; figures from public filings and IRS rulings.