Roth conversions

A Roth conversion moves money from a traditional IRA or 401(k), where you deferred tax going in and will owe tax coming out, into a Roth, where you pay tax now and everything afterward is tax-free. For most people it is a bet on future tax rates. For a self-directed account holding real estate, it becomes something sharper: a way to lock in tax-free treatment for an entire property’s future appreciation by paying tax on a temporarily depressed value. Used well, it is one of the most powerful moves in self-directed retirement investing. Used carelessly, it invites IRS scrutiny.

The basic trade

In a conversion, you take a traditional (pre-tax) retirement balance and move it to a Roth, paying ordinary income tax on the converted amount in the year you convert. In exchange, that money, and all its future growth, becomes tax-free: no tax on the appreciation, no tax on the eventual withdrawals in retirement, and no required minimum distributions on a Roth IRA. You pay a tax bill today to erase all future tax on that account.

The conversion makes sense when you expect the account to grow substantially, when you expect to be in a similar or higher tax bracket later, or when you can pay the conversion tax from outside funds so the full balance keeps compounding tax-free. It is a prepayment of tax in exchange for permanent tax-free growth.

A Roth conversion means paying ordinary income tax now on a traditional balance so that all future growth and withdrawals become permanently tax-free.

The real estate edge: convert at a low value

Here is where a self-directed IRA holding real estate creates an opportunity a stock account does not. You pay conversion tax on the value of what you convert, so the lower the value at conversion, the smaller the tax bill, and everything above that value later grows tax-free inside the Roth.

Real estate values move, and they sometimes dip: a market downturn, a property mid-renovation, a temporary vacancy or distress. Convert the self-directed IRA holding that property when its appraised value is temporarily low, pay tax on the low value, and then, as the property recovers and appreciates over the years, all of that recovery and growth happens inside the Roth, tax-free. You have effectively locked in tax-free treatment for the property’s entire future upside at the cost of tax on its depressed value. For an investor who bought or renovated well, this can convert a large future gain into zero future tax.

Because conversion tax is based on the property’s value at conversion, converting a self-directed IRA’s real estate when its value is temporarily low locks in tax-free treatment for all the future recovery and appreciation.

The valuation trap

That same mechanic is where people get into trouble, so it needs stating plainly. Because a low valuation means a low tax bill, there is a temptation to convert at an aggressively, artificially low value. The IRS knows this, and unsupported or lowball valuations on a self-directed Roth conversion draw scrutiny. The valuation has to be genuine and defensible, a real appraisal reflecting actual market conditions, not a number chosen to minimize the tax.

The discipline is to convert when the value is genuinely low for real reasons, a true market dip, a property actually mid-renovation, and to document that value with a proper independent appraisal. Convert on real facts and you have a strong, legitimate strategy. Convert on a manufactured lowball and you have an audit risk that can unwind the benefit. The opportunity is real; it just has to rest on a valuation you could defend to the IRS.

A low conversion value cuts the tax bill, but artificially low valuations draw IRS scrutiny, so the value must be a genuine, independently appraised number reflecting real conditions.

The bottom line

• A Roth conversion pays tax now on a traditional balance to make all future growth tax-free.
• It suits accounts expected to grow, especially when you can pay the tax from outside funds.
• For self-directed real estate, converting at a temporarily low property value shrinks the tax bill.
• All the property’s later recovery and appreciation then grows tax-free inside the Roth.
• The valuation must be genuine and independently appraised; lowball values invite IRS scrutiny.

For the accounts this applies to, read self-directed IRA and solo 401(k). For the rule a conversion must not break, see prohibited transactions. For the full picture, start at the advanced real estate tax strategies hub.

Last verified August 2026.