2026 Private Lending Mistakes

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Top 5 SDIRA Lending Mistakes

Sep 30, 2026   |   Read time: 7 minutes

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Common lending pitfalls retirement investors can avoid

Private lending is one of the investment strategies available through a self-directed IRA (SDIRA). By lending retirement funds to borrowers, investors may generate interest income while diversifying beyond traditional stocks and bonds. Depending on the terms of the loan, the investment may also be secured by collateral such as real estate, business assets, or other property.

Like any SDIRA investment, private lending transactions must comply with applicable retirement account rules. Prohibited transactions, improper handling of funds, or other missteps can have significant tax consequences and may affect the tax-advantaged status of the retirement account. Understanding common mistakes and key requirements can help investors make more informed decisions when considering private lending within an SDIRA.

 

1. Lending to a disqualified person

One of the most serious mistakes an SDIRA investor can make is lending money to a disqualified person. Under Internal Revenue Code 4975 rules, disqualified persons generally include the account owner, their spouse, parents, children, grandchildren, and certain entities owned or controlled by those individuals. Because these relationships can create conflicts of interest, loans between an SDIRA and a disqualified person are prohibited. 

For example, an SDIRA cannot lend money to an adult child for a home purchase or to a business controlled by the account owner. The prohibited transaction occurs as soon as the loan is made, regardless of whether the borrower repays the debt. The consequences can be substantial. If a prohibited transaction occurs, the IRS may treat the entire IRA as distributed as of the first day of the year in which the violation occurred. This may result in taxable income and, in some cases, additional penalties.

Before funding any loan, investors should carefully review the borrower's relationship to them and confirm that neither the borrower nor any related entity falls within the IRS definition of a disqualified person.

 

2. Personal guarantees

Another common mistake involves personally guaranteeing a loan connected to an SDIRA. This issue most often arises when an SDIRA acquires an investment using borrowed funds. While an SDIRA may obtain financing in certain situations, the loan generally must be non-recourse. In a non-recourse arrangement, the lender's only remedy in the event of default is the collateral itself. The lender cannot pursue the account owner personally.

Problems occur when the SDIRA owner provides a personal guarantee. Even if the guarantee is never called upon, the IRS may view it as the account owner extending credit to the IRA, creating a prohibited transaction. A similar issue can arise when an SDIRA makes a loan, and the account owner personally guarantees repayment to protect the retirement account's investment. Although the intent may be to reduce risk, the guarantee provides a benefit to the IRA that the account owner is not permitted to provide.

It's important to note that guarantees from unrelated third parties are generally permissible. An independent guarantor may provide additional security without creating a prohibited transaction for the SDIRA owner.

 

3. Overlooking UDFI

While less common than other lending mistakes, investors should also be aware of the potential impact of unrelated debt-financed income (UDFI). In certain situations, a loan investment may result in the SDIRA acquiring property that remains subject to debt. For example, if an SDIRA holds a loan secured by real estate and later acquires the property through foreclosure, existing debt obligations could potentially create UDFI-related tax considerations.

Although these situations are relatively uncommon, they can lead to unexpected tax liability if not properly understood in advance. Investors considering more complex lending arrangements should work with qualified tax and legal professionals to evaluate potential UDFI implications before entering into the transaction. Understanding these possibilities ahead of time can help avoid surprises and support better investment planning.

 

4. Payments made to the owner instead of the IRA

All principal and interest payments associated with an SDIRA-held loan should be paid directly to the IRA, not to the account owner personally. For convenience, some borrowers may wish to send payments to an investor's personal account before those funds are transferred into the SDIRA. However, allowing retirement assets to pass through a personal account can create compliance concerns and may be viewed as an improper use of IRA assets.

To help maintain a clear separation between personal finances and retirement assets, payment instructions should direct all checks, wires, and electronic transfers to the SDIRA or its custodian for the benefit of the account.  In some cases, account owners may assist with the administrative handling of investment-related documents or payments. Provided the owner does not have personal use, control, or access to the funds, payments may be forwarded directly to the custodian for deposit into the SDIRA.

STRATA accountholders can visit our Self-Directed Knowledge Center for payment guidance to ensure smooth transactions every time. Maintaining thorough records and following established payment procedures can help ensure that loan proceeds are handled appropriately throughout the life of the investment.

 

5. Improperly structured loans

Even when a loan involves a qualified borrower and all payments flow correctly into the SDIRA, poor loan documentation can create unnecessary risk.

Loans held within an SDIRA should be structured as arm's-length transactions with terms that reflect what independent parties would reasonably agree to in the marketplace. Warning signs may include:

  • Below-market interest rates
  • Missing or incomplete documentation
  • Unclear repayment terms
  • Inadequate collateral documentation
  • Failure to properly record liens or security interests
  • Loan provisions that appear to benefit the account owner personally rather than the IRA

Every loan should be supported by a properly executed promissory note that clearly outlines the loan amount, repayment schedule, interest rate, maturity date, collateral requirements, and remedies in the event of default.

When real estate serves as collateral, investors should also ensure that all security instruments and lien filings are properly prepared and recorded.

While custodians such as STRATA Trust Company facilitate account administration, they generally do not evaluate the investment merits or structure of individual SDIRA loans. The responsibility for due diligence and proper documentation remains with the investor.

 

Resources

Private lending can be a valuable strategy within an SDIRA, offering opportunities to generate income and diversify retirement assets. However, there are important considerations beyond evaluating a potential borrower, including rules governing prohibited transactions, loan documentation, payment handling, and potential tax considerations.


If you're considering private lending within your retirement account, download our free step-by-step checklist.

Private Debt Investment Checklist


By taking a thoughtful approach to due diligence and compliance, investors can reduce risk and help preserve the tax advantages that make self-directed retirement accounts powerful retirement planning tools.

STRATA can help you better understand the administrative requirements of self-directed investing and support your journey toward a broader range of investment opportunities.  If you have questions along the way, our team of self-directed retirement account specialists is available to help you navigate the custody process and better understand your account responsibilities.

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What are the most common SDIRA lending mistakes?

The most common SDIRA lending mistakes include lending to disqualified persons, personally guaranteeing loans, overlooking potential UDFI implications, allowing payments to pass through personal accounts, and failing to properly structure loan documents.