Underground storage tank due diligence for Michigan self-directed IRA property

A West Michigan buyer walking a property may never see the tank. It sits under the driveway, beneath the yard, or tucked against the side of a barn, and the listing says nothing about it. Old homes across the area have run on heating oil for decades, and many carried a small fuel tank that was filled, forgotten, and left in the ground. The tank is not in the description, not on the photos, and not on the title. It is one of the most common ways a hidden liability attaches to an IRA purchase.

Two frames matter here. One is the regulatory frame: what the state actually calls a tank, what registration and closure it requires, and who has to pay when a product leaks. The other is the account frame: who pays for the work, who is allowed to benefit, and how the transaction stays clean under the self-directed IRA rules. Most of the risk is in the first frame, and most of the mistakes are in the second, so both need a look before the offer is written.

What counts as an underground storage tank

An underground storage tank holds a regulated substance below the ground. Under Michigan rules, that includes petroleum and its fractions, certain hazardous substances, and some listed air toxics. The practical distinction for a buyer is which body of law reaches the tank. Michigan regulates underground storage tanks under Part 211 of the Natural Resources and Environmental Protection Act, Act 451 of 1994, and the federal standards in 40 CFR Part 280. Aboveground tanks and some smaller underground tanks fall under the state flammable and combustible liquids rules instead.

Capacity and use decide which set of rules applies. A residential tank that holds heating oil for private use, and a farm tank under 1,100 gallons, generally sit under the flammable and combustible liquids rules. A commercial fuel tank over 110 gallons, or a tank over 1,100 gallons, generally falls into the full underground storage tank program with registration, financial responsibility, and technical standards attached. These are working thresholds, not the whole test, and the exact classification for one parcel is something the storage tank division and a qualified professional confirm. The point for due diligence is that the size and the use have to be established before anyone can say which rules reach the property.

Why a tank can be a hidden liability

A tank that has sat for years corrodes from the inside out, and the failure is silent. Product can move through the soil long before a buyer would ever smell it. When a release is found, the responsible owner or operator is the one who has to respond, and that duty follows the property through the sale. An IRA that buys the parcel inherits the record that was already there, not a clean slate.

The exposure is financial as much as it is regulatory. A petroleum underground storage tank has to carry financial responsibility for corrective action and for third-party injury or property damage from a release. If a leak is confirmed, the owner or operator has to respond, and the consultant who investigates it has to meet the qualifications the state sets for leaking tank work. None of that is a reason to avoid the property, but it is a reason to know where you stand first.

Screen for tanks before the offer

The screening is about building a written record that a tank was looked for and that its status is known. The listing will not do this for you, and the seller may not know either. The work is to assemble the history and check it against the state records.

• The property's use history: when it was heated with oil, whether a commercial or farm fuel tank ever sat on the site, and when any tank was emptied or closed
• Any registration on file with the Department of Licensing and Regulatory Affairs, Bureau of Fire Services, storage tank section, and whether the parcel is listed
• EGLE leaking underground storage tank records for the address and the immediate neighbors, since a release can travel
• The seller disclosure and any tank closure, removal, or site assessment documents the seller can produce
• Physical signs on the walk-through: a fill pipe, a vent stack, an old dispenser, capped pipe, or a sealed basement fill opening
• Neighboring properties of the same age, which often used the same fuel and the same tank style

A Phase I environmental review, where one fits, will usually screen for aboveground and buried tanks as part of the recognized environmental conditions, and it is worth asking the environmental professional to make the tank question explicit rather than assume it is covered. The two reviews are different in scope, and the tank work should be a named item on the list, not a byproduct of a general walk-through.

The home heating oil case

The most common situation in an older West Michigan home is a residential heating oil tank, usually under 1,100 gallons, used only for the house. Those generally sit under the flammable and combustible liquids rules rather than the full underground storage tank program, which matters because the closure and cleanup duties are different. The classification still has to be confirmed for the specific tank, and the size and the use are what drive it.

When a residential tank has been out of service for more than a year or will not be used again, the work is to empty the tank and the piping, cap the pipes, and have the tank professionally cleaned before it is removed or closed in place. For an underground heating oil tank of 1,100 gallons or more, a site assessment is required under the flammable and combustible liquids rules, and one is recommended for smaller tanks. If the digging turns up signs of a release, the state's guidance is to report it to the pollution emergency alerting system and to the appropriate EGLE district office. A homeowner can do this work or hire an environmental consultant, and the costs range widely, which is why several estimates are worth getting.

What a regulated petroleum tank requires

A petroleum tank in the full program carries a set of standing obligations. It has to be registered, and it has to keep financial responsibility in place for corrective action and for third-party claims from a release. Suspected and confirmed releases have to be reported to the storage tank section promptly, and the system has to meet technical standards for leak detection, corrosion protection, and spill prevention. A tank that was never registered, or that lost its financial responsibility, is a gap that shows up the moment a release is found.

Michigan also runs a cleanup fund through the Michigan Underground Storage Tank Authority for releases from petroleum underground storage tanks. The fund pays a portion of the corrective action cost after a deductible, and the deductible is tied to how many tanks the owner or operator holds: a lower per-claim amount for a small number of tanks and a higher one once the count is eight or more. Eligibility to claim, and whether a particular release qualifies, is decided under the funding statutes, and the authority's published guidance sets out how a claim is documented. A newly found tank should be registered first, and the reporting and financial responsibility steps follow from there.

Keep the account on the right side of the line

The account rules are the same as on every other IRA property, and they are where the deal usually goes wrong. The account pays for the registration, the financial responsibility, the closure, the site assessment, and any corrective action. The income from the property goes to the account. The owner does not personally use the property or take a benefit from it while the account holds it, and the owner does not personally cover the tank work as a way to fund the purchase.

The consultants, the tank cleaner, and the environmental professional have to be arm's-length. They are hired by or for the account, not by the owner, and they are not members, managers, or anyone else in the owner's circle. A family cleanup company that does the tank work for the owner's own IRA, at a price below what the market pays, is the kind of arrangement the prohibited transaction rules exist to block, and no amount of good intent fixes it. The custodian, the CPA, and the attorney should all look at the payment path before the money moves.

Budget and timeline

Tank work is not a fixed price. A clean, small, accessible residential tank is one cost. A buried tank that needs a site assessment, or a petroleum tank that has leaked, is another. The difference can be large, and it is not knowable until the tank is identified, classified, and assessed.

That is why the tank question belongs in the offer's contingency window, not after closing. If the screening turns up a tank, the buyer needs time to get the classification, the registration status, the financial responsibility status, and a written estimate before the deadline. If it does not, the written record that it was looked for is worth keeping with the purchase file. Either way, the account should not close on a parcel with an open tank question it has not priced.

This article is educational, not legal, tax, financial, retirement-plan, environmental, or investment advice. No property, tank, or strategy is approved or endorsed by the IRS. Have your own self-directed IRA custodian, CPA, Michigan attorney, environmental consultant, title professional, and the storage tank division review the account, the tank, and the transaction before taking action.

What Rennie can coordinate

Primary sources for the public-rule portions of this review are Part 211, Underground Storage Tank Regulations, and Part 213, Leaking Underground Storage Tanks, of the Natural Resources and Environmental Protection Act, Act 451 of 1994; the federal standards in 40 CFR Part 280; the Michigan flammable and combustible liquids rules; the Department of Licensing and Regulatory Affairs Bureau of Fire Services storage tank section, including its registration, home heating oil, and which-rules-apply guidance; and the Michigan Underground Storage Tank Authority's cleanup fund and financial responsibility materials. Those describe the framework. The answer for one parcel and one account comes from the state records and the buyer's own qualified professionals.

Rennie can help identify West Michigan property and organize the real estate side of the review: flagging where a tank is likely to have been, confirming what the listing and the disclosure say, and lining up the environmental and storage tank professionals before the offer is written. The classification, the state filings, the fund eligibility, and the retirement-account decisions stay with the buyer's own environmental consultant, custodian, CPA, and attorney.