Most people know their IRA can hold stocks, bonds, and mutual funds. Far fewer know it can hold a mortgage note — with all the interest income growing tax-deferred, or tax-free in a Roth. The vehicle that makes this possible is the self-directed IRA, and for income-producing assets like notes, it is one of the most powerful combinations available to an individual investor.
What "self-directed" actually means
Every IRA has a custodian. Mainstream custodians — the big brokerages — only allow assets they can sell you: publicly traded securities and funds. A self-directed IRA (SDIRA) uses a specialty custodian that permits the full range of assets the IRS actually allows, which includes real estate, private lending, and mortgage notes. Same tax rules, same contribution limits. The only difference is the menu.
The IRS list of what an IRA cannot hold is short: life insurance and collectibles. Notes are fully permitted and have been all along.
Why notes and IRAs fit so well
Here is the problem with holding notes in a taxable account: note income is interest, and interest is taxed at your ordinary income rate — the highest rate most people pay. A 10 percent yield can shrink to 6 or 7 after tax.
Inside an IRA, that drag disappears. Every payment lands in the account untaxed and goes right back to work. In a traditional SDIRA you pay tax only when you withdraw in retirement; in a Roth SDIRA, qualified withdrawals are never taxed at all. A 10 percent yield compounding untouched for 15 or 20 years is a very different machine than the same yield with a third skimmed off every year.
The rules you cannot break
The IRS polices one thing above all: self-dealing. Your IRA is a separate entity, and it cannot transact with you or people close to you. The essentials:
- No disqualified persons. Your IRA cannot buy a note from, sell a note to, or lend money to you, your spouse, your parents, your children, or businesses they control.
- All money stays inside. Payments flow to the IRA, not your checking account. Expenses — servicing fees, legal costs — are paid by the IRA.
- No personal benefit today. You cannot personally guarantee the note or use IRA-owned assets yourself.
Break these rules and the IRS can treat the entire IRA as distributed — taxes and penalties on everything, not just the bad transaction. The rules are easy to follow once you know them, but they are unforgiving if you freelance.
How to get started
- Open an account with a self-directed custodian. There are a dozen established national firms. Compare fee schedules — some charge per asset, some by account value.
- Fund it. Most people roll over an existing IRA or old 401(k). Rollovers preserve the tax status and have no dollar limit.
- Find the note. The custodian holds the asset; they do not source deals or vet them. Due diligence — borrower payment history, collateral value, lien position, paperwork — is entirely on you. This is where education pays.
- Direct the purchase. You instruct the custodian, the IRA buys the note and is named as the lender of record, and payments flow back into the account.
Who this fits
An SDIRA note strategy makes the most sense for investors with meaningful retirement savings sitting in volatile assets, a long enough runway to let tax-advantaged compounding work, and the willingness to learn due diligence. It is not a set-it-and-forget-it product like a target-date fund — it is closer to running a very small, very quiet bank inside your retirement account.
That was the appeal for me. After two decades of teaching, I wanted retirement income that did not depend on what the market felt like doing the year I turned 65. Notes inside a tax-advantaged wrapper are one of the most direct routes to that kind of certainty.
I am an investor, not a tax advisor. Talk to a CPA or tax attorney about your specific situation before moving retirement funds.
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