Zero-Cashflow DSTs Explained: Structure, Uses and Risks in 1031 Exchanges

A zero is a net-leased building where the lender, not the investor, is the one collecting the rent

The New York tax outline cited below defines the structure in one sentence: a zero-coupon DST invests in triple-net-leased property with a credit tenant, and all cash flow is remitted to the lender to reduce the debt. The lease term, the loan term and the trust's life are matched at closing, the same fact pattern Rev. Rul. 2004-86 approved with its 10-year net lease and 10-year non-recourse loan.

Leverage is what makes it useful. The Wealthstone analysis cited below puts typical debt at 70% or more of value, and the offerings described on our cash-out DST page run 80% to 90%. At those levels a dollar of your equity carries four to nine dollars of property, and the loan is non-recourse to the trust and to you.

Because the trustee may not renegotiate the loan or the lease, the whole plan, amortization, balloon and any later cash-out included, is fixed in the documents on day one. Read the loan summary in the PPM as carefully as the tenant's credit.

The debt-replacement math: $240,000 into a zero at 85% leverage covers a $1,200,000 payoff and frees $560,000 for debt-free trusts

Hypothetical: you sell for $2,000,000, pay off a $1,200,000 mortgage and send $800,000 to your intermediary. To defer everything you must buy at least $2,000,000 of replacement property and either take on $1,200,000 of new debt or add that much cash, because Reg. 1.1031(d)-2 counts the loan you shed as money received.

Standard DSTs at 50% leverage cannot get there: all $800,000 placed at 50% buys $1,600,000 of property carrying $800,000 of debt, leaving $400,000 of debt unreplaced and taxable as boot. A zero at 85% changes the sum: $240,000 of equity buys $1,600,000 of property carrying $1,360,000 of debt, and the remaining $560,000 goes into debt-free trusts, for $2,160,000 of purchases and $1,360,000 of debt, both above the thresholds.

The same logic works when you want less risk rather than more: replace the whole loan with a small zero and put everything else into unleveraged income trusts, which is the de-levering use our cash-out solutions page describes.

Phantom income: the tax bill arrives every year while the cash goes to the bank, and it grows as the loan pays down

Your share of the tenant's rent is gross income; your share of the loan interest is deductible; your share of principal is not, as Publication 527 states for any rental mortgage; depreciation on your basis offsets part of the rest. The outline cited below names the trap directly: as the debt decreases, the mortgage interest deduction decreases, so taxable income rises while distributions stay at zero.

Hypothetical for the $240,000 slice above: $110,000 of rent, $80,000 of interest and $25,000 of depreciation in year one leave $5,000 of taxable income with no cash. By year ten, with interest down to $45,000 on the amortized balance, taxable income is $40,000, still with no cash. That tax is paid from other funds every year, and if your carried-over basis is small the depreciation line will be smaller than this example.

The offset is that principal paid down is equity you own at the end, taxed only when the property sells or exchanges; the passive loss page explains why other passive losses can shelter this income and salary cannot.

Four risks the projections do not show: one tenant, one balloon, one exit window and a foreclosure that is taxed as a sale

Every risk below is disclosed in a zero's PPM; the point is to weigh them against the boot you are avoiding.

• Tenant credit: one lease pays the whole loan, so a downgrade, bankruptcy or non-renewal at lease end is the entire investment; the single-tenant page is the place to size that.
• Balloon and lease end: some zeros amortize fully by lease expiration and others leave a balance due; the PPM's loan schedule shows which, and a balloon due when the tenant's lease is also expiring is the worst combination.
• No early exit: a 2021 DST loan filed with the SEC (cited below) bars partial prepayment for the whole term, locks out full prepayment for a period and then requires defeasance or a premium of at least 1% of principal, so the trustee cannot sell early cheaply even if a buyer appears; see the illiquidity page.
• Foreclosure: if the tenant fails and the lender takes the property, Reg. 1.1001-2 treats the full non-recourse balance as your amount realized regardless of value, so you recognize the deferred gain and the depreciation with no cash at all.

Pairing a zero with income trusts, and the questions to put to the sponsor about the loan

The Wealthstone analysis notes that investors rarely place a whole exchange in a zero; the usual mix is the smallest zero that covers the debt requirement beside debt-free or lightly leveraged trusts that pay the income. Size the zero from the debt you must replace, not from the sponsor's minimum, and size the rest from the monthly income you need; the minimums page covers how small a slice can be.

A 'tax-free refinance' pitch deserves the most scrutiny. The trustee cannot refinance under Rev. Rul. 2004-86, so any later cash-out must be a feature of the original loan; ask for the section of the loan agreement that permits it, the earliest date, the conditions, and the tax opinion that covers taking cash after an exchange. Our zero-cash-flow timeline page describes the sell-now, decide-later use; this page is where you check that the paper supports it.

Confirm the tax treatment of phantom income and of any cash-out with your CPA or attorney before signing; the numbers above are illustrations, not projections.

• Loan maturity date, amortization schedule and any balloon, side by side with the lease expiration date.
• Whether the loan permits a paydown-and-readvance or other cash-out, on what date, under what conditions, and who has given opinion-level comfort that it is not boot.
• A projection of your taxable income in each year of the hold, not only the cash flow line.
• Who signs the carve-out guarantees to the lender and what triggers them; investors do not, and the leverage page explains the protection and its limits.
• What happens to the property, and to you, at lease end if the tenant leaves.