In 1999, Peter Thiel put less than $2,000 into a brand new Roth IRA and used it to buy 1.7 million founder shares of PayPal at a tenth of a penny each. By the end of 2019, ProPublica reported that account was worth $5 billion. Tax free.
Everybody who reads that story fixates on the $5 billion. That's the wrong number.
The lesson isn't the size. It's the choice. He put the single most asymmetric asset he had access to inside the one account that never taxes growth. Most people do the exact opposite. They fill their Roth with the safest thing they own and then hold the wild stuff in a taxable brokerage account where the IRS gets a cut of every win.
Here's the thing. A Roth doesn't make an investment good. It just deletes the tax on whatever grows inside it. So the account should hold whatever has the most growth to delete.
And for real estate investors specifically, that math runs backwards from what you'd expect.
The only Roth rule that actually matters
Run the two scenarios side by side.
You put $10,000 into something speculative and it goes to zero. Taxable account or Roth, the result is identical. You're out $10,000. The Roth didn't protect you.
Now it goes to $500,000. In a taxable account you hand over long-term capital gains plus the 3.8% net investment income tax, so you're writing a check north of $100,000. Inside a Roth you keep all of it.
Downside is the same. Upside is the only part that gets taxed. Which means the highest-variance thing you own is the thing that belongs inside the wrapper.
That's the whole argument. A 4% bond fund in a Roth is fine. It's just not what the account is for.
Why your rentals probably do not belong in there
This is where most "invest in real estate with your IRA" content falls apart, and it's the part that matters most for our audience.
Rental real estate is already one of the most tax-advantaged assets in the code. Depreciation. Cost segregation and bonus depreciation. 1031 exchanges. The STR loophole. Every one of those benefits disappears the second the property sits inside an IRA, because there's no tax there to shelter in the first place.
You'd be spending your best tax shelter to buy a second tax shelter you already own.
It gets worse if you use debt. Leverage inside an IRA triggers unrelated debt-financed income under the UBIT rules, which means your "tax-free" account files a Form 990-T and pays tax at trust rates. Trust brackets compress fast, so you hit the top rate at a few thousand dollars of income. On top of that, any loan has to be non-recourse, and you can't swing a hammer on the property yourself because your own labor is a prohibited transaction.
| Asset | Good fit for a Roth? | Why |
|---|---|---|
| Long-term rental, unleveraged | Usually no | You forfeit depreciation and 1031 |
| Rental with a mortgage | Usually no | UDFI plus you lose depreciation |
| Short-term rental | No | The STR loophole only works outside |
| Private notes and hard money lending | Yes | Interest is ordinary income at your top rate outside |
| Tax liens | Yes | Same reason as notes |
| Raw land held for appreciation | Often yes | No depreciation to lose |
| Private company or pre-IPO equity | Yes | Asymmetric upside, no other shelter |
| Index funds | Yes | Boring, correct, what most of it should be |
Notice the pattern. The Roth is for assets whose returns would otherwise be taxed at your highest rate and that have real upside. Lending, private equity, appreciation plays. Not the assets that already come with their own deductions attached.
I lend from a self-directed account and I own rentals in individual LLCs. That split is deliberate.
The rules that blow up the entire account
Self-directed doesn't mean unsupervised. IRC §4975 draws hard lines, and the penalty is not a fine. Under §408(e)(2), a prohibited transaction can cause the whole account to be treated as distributed on January 1 of that year. The wrapper is gone. Permanently.
Disqualified persons include you, your spouse, your parents and grandparents, your kids and grandkids and their spouses, and any entity you control at 50% or more. Your IRA cannot buy from them, sell to them, lend to them, or benefit them.
So no buying a property your IRA already owns. No lending your IRA's money to your own LLC. No staying a night in the IRA's cabin. No painting it yourself, because sweat equity is a contribution of services the code doesn't allow.
Then there's the friction nobody mentions in the pitch decks. You need a self-directed custodian, not Fidelity. There's paperwork on every transaction, annual valuations on private holdings, custodian fees, and real illiquidity. The account also has to hold enough cash to cover its own expenses, because you can't write a personal check to cover a repair on an asset your IRA owns.
None of this is a reason to skip the strategy. It's a reason to do it on purpose, with a custodian and a CPA who have done it before.
Now the part I actually care about
Everything above is the version of the Thiel story for people who already have money in a Roth. There's a second version, and it's available to basically every business owner reading this.
Put your kids on payroll and let them fund a Roth at an age where compounding does something absurd.
A Roth requires earned income. Kids don't have any by default. If you own a business, and if you own rentals you own a business, you can create it legitimately.
Our daughter has been on payroll since she was five. Real work, documented, paid at a rate we could defend to anyone who asked. Her paychecks go into a custodial Roth. I wrote the full breakdown of how we do it in How We Pay Our 11-Year-Old Tax Free, and the deeper mechanics in How to Pay Your Kids From Your Real Estate Business.
The short version of why it works:
The wages are a deduction to your business. The child owes zero federal income tax on earnings up to the standard deduction, which is $16,100 for a single filer in 2026 (a dependent's deduction is earned income plus $450, capped at that same number). Under IRC §3121(b)(3)(A) and §3306(c)(5), there's no FICA on a child under 18 and no FUTA under 21, as long as the paying entity is a sole proprietorship, a single-member LLC, or a partnership where the only partners are the parents. An S corp doesn't get that exemption, which is why the family management company structure exists.
Earned income is taxed to the child, not to you, so the kiddie tax doesn't touch it. And earned income is exactly what makes the Roth contribution possible, capped at the lesser of what they earned or $7,500 for 2026.
The math is the entire argument
Say you pay a child $5,000 a year for legitimate work from age 8 through 17. That's $50,000 contributed, and if it's under the standard deduction it never gets taxed on the way in either.
| Growth rate | Value at 65 | Total contributed |
|---|---|---|
| 7% | about $1.9 million | $50,000 |
| 8% | about $3.1 million | $50,000 |
No further contributions after age 17. Nothing clever inside the account. Just an index fund and 47 more years.
One single $7,500 contribution at age 12, left alone, is worth roughly $271,000 at 65 at a 7% return.
Let that sink in. A twelve-year-old's summer of real work in your business, compounded across a life, beats what most adults manage to do in a decade of saving.
Your child does not need founder shares. They need time, and time is the one input they have more of than anyone.
The trap almost nobody flags
Read this part twice, because I see it wrong constantly in investor groups.
You are a disqualified person to your child's IRA. The family definition under §4975 pulls in ancestors and lineal descendants in both directions. So your kid's Roth cannot buy your rental, cannot lend to your LLC, cannot invest in your syndication, and cannot be the source of your next down payment.
That's not a loophole waiting to be optimized. It's the fastest way to detonate an account you spent a decade building.
Which is why my honest recommendation for a kid's Roth is deeply unexciting: a broad index fund, automated monthly, ignored for thirty years. Keep the notes, the private deals, and the exotic stuff in the account where you understand the rules and you're the one on the hook.
And the objection you're already thinking
"She can't touch it until 59 and a half."
Contributions come out at any time, tax free and penalty free. Only the earnings are locked, and those need age 59 and a half plus a five-year clock. There are carve-outs too: up to $10,000 of earnings toward a first home, and qualified education expenses avoid the 10% penalty, though earnings are still taxable in that case.
Practically speaking, the money is far less trapped than people assume. But the whole point is to not touch it, so I'd rather teach that lesson than the withdrawal rules.
How I'd sequence this
- Confirm your entity type. Sole prop, single-member LLC, or spousal partnership gets the FICA and FUTA exemption. S corp needs a family management company first.
- Write an actual job description. Age-appropriate, real, tied to the business. Listing photos, shredding, data entry, social media, app testing, cleaning the office. Not household chores.
- Set a defensible wage. What would you pay a stranger for the same work? Write down how you got there.
- Run it like payroll. Time logs, pay stubs, a real W-2, money moving into an account in the child's name. This is exactly what Kids Payroll automates, because doing it in a spreadsheet is how people end up with no records when it matters.
- Open a custodial Roth. You control it until your state's age of majority, then it's theirs.
- Fund it, index it, and leave it alone.
Then, separately, look at your own Roth. Ask whether what's inside it is the most asymmetric thing you own, or the most comfortable.
FAQ
Q: Can I use my Roth IRA to buy a rental property? A: Legally yes, through a self-directed custodian. Practically it's usually a bad trade, because you give up depreciation, cost segregation, and 1031 eligibility, and any mortgage triggers unrelated debt-financed income taxed at trust rates. Lending and private equity are better uses of the space.
Q: How much can my child contribute to a Roth IRA? A: The lesser of their earned income or $7,500 for 2026. Earned income means wages from real work, not an allowance and not gift money.
Q: Do I have to issue a W-2 to my own child? A: For a child under 18 with no withholding it isn't always technically required, but issue one anyway. It's your proof the income was earned, and earned income is what makes the Roth contribution valid. Never issue a 1099 to a minor for this. That triggers self-employment tax.
Q: What happens if I break a prohibited transaction rule? A: Under §408(e)(2), the account can be treated as distributed as of the first day of that tax year. For a Roth, that means losing the tax-free wrapper, plus tax on earnings and a 10% penalty if you're under 59 and a half. This is the one area where you pay a professional and follow instructions exactly.
If you want the tax playbook in order, start with The Tax Strategy Path, or browse everything in Tax Savings. And if putting your kids on payroll is the move you keep meaning to make, Kids Payroll handles the job descriptions, time logs, wage documentation, and W-2s so it holds up under scrutiny.
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Education and community, not financial or tax advice. Tax law is complex and individual circumstances vary. Talk to a qualified CPA or tax attorney before implementing any strategy discussed here. Addicted to ROI is not a CPA firm, law firm, or registered tax preparer. Growth figures are illustrations at assumed rates of return, not projections or guarantees.
