The short answer
There is no single figure: each zero cash flow DST states its own minimum subscription in its private placement memorandum, and we do not publish one for our cash out DSTs. The number that should drive your decision is different anyway. A zero's job is to carry debt, so the right size is the equity needed to replace the mortgage you paid off: at 80 to 90% leverage, every dollar of debt needs only 11 to 25 cents of equity. Size the zero to that, check it clears the offering's minimum, and put the rest of the exchange somewhere that pays income.
At a glance
| Published minimum | Set per offering in the private placement memorandum |
|---|---|
| Leverage | 80 to 90% non-recourse debt |
| Equity per $1 of debt | About $0.25 at 80%, $0.18 at 85%, $0.11 at 90% |
| Sizing target | The smallest slice that covers the debt you paid off |
| Investor eligibility | DSTs are private placements, generally for accredited investors |
| Accredited by net worth | Over $1,000,000, excluding your primary residence |
| Accredited by income | Over $200,000 single or $300,000 joint in each of the last two years |
The offering sets the minimum; the debt you paid off sets the size
Our cash out DSTs are high-leverage trusts holding triple-net leased property with investment-grade tenants, where all operating income services the debt. Their stated purpose includes solving debt requirements using only a small portion of proceeds and freeing the rest for low-leverage investments.
That purpose tells you how to size one. A zero is not meant to hold your whole exchange. It is meant to hold the debt your sale retired, with as little of your cash as possible, so the minimum subscription is a floor to clear rather than a target to hit.
The traditional DSTs we place typically have minimums between $100,000 and $250,000 per trust. Zeros are separate offerings with their own terms, so read the minimum in the specific memorandum.
At leverage L, a dollar of debt needs (1 − L) ÷ L of equity
Reg. section 1.1031(d)-2 treats the mortgage paid off at your sale as money received, and Reg. section 1.1031(b)-1(c) lets debt you take on with the replacement offset it. In a DST, the debt you take on is your pro-rata share of the trust's loan, as our answer on DST loans as replacement debt explains.
Turn that around to size a zero. If the trust is leveraged at L, each dollar of your equity buys a share carrying L ÷ (1 − L) of debt, so each dollar of debt you need costs (1 − L) ÷ L of equity: 25 cents at 80%, about 18 cents at 85% and about 11 cents at 90%.
Overshooting is safe for the exchange, since taking on more debt than you retired is not boot. It does add phantom income and tenant risk, so the aim is a slice close to the debt figure, not well above it.
Hypothetical: a $900,000 mortgage paid off on a $2,000,000 sale
Round numbers, hypothetical. You sell for $2,000,000, the closing pays off a $900,000 mortgage, and $1,100,000 goes to your intermediary. To defer everything, you must buy at least $2,000,000 of property and take on at least $900,000 of debt or add that much cash.
At 85% leverage, about $159,000 of equity buys a share of roughly $1,059,000 of property carrying $900,000 of debt. The remaining $941,000 can go into debt-free trusts, for total purchases of about $2,000,000 and $900,000 of debt. At 80% leverage the zero slice would be $225,000; at 90%, $100,000.
If the offering's minimum is above the slice you need, subscribing at the minimum simply replaces more debt than required. If it is below, you have flexibility. Run your own numbers with your CPA, and see our DST minimums and sizing page for multi-trust allocation.
Eligibility is a second minimum: accredited investor status
DST interests are private placements, not publicly traded securities. Private offerings of this kind are commonly limited to accredited investors, defined in Regulation D, 17 CFR section 230.501(a).
For individuals the main tests are net worth over $1,000,000, alone or with a spouse or spousal equivalent, with the primary residence excluded as an asset; or income over $200,000 individually, or $300,000 jointly, in each of the two most recent years with a reasonable expectation of the same this year. Our page on DST accredited investor rules covers the other categories.
If you do not qualify, the leverage problem still has answers: buying a financed property directly, or adding cash to cover the debt you paid off.
Decide the zero's size before you identify, and keep it small
The order of decisions matters, because identification is due on day 45 and each identified trust should already be sized.
- Get the exact payoff figure from your closing statement; that is your debt target.
- Ask for the leverage, minimum subscription and loan schedule of each zero on offer.
- Divide the debt target by L ÷ (1 − L) to get the equity slice, then compare it with the minimum.
- Allocate the rest to trusts or property that fit your income needs.
- Have your CPA confirm total purchases and total debt both clear your sale figures.
Related questions
Why not put my whole exchange into a zero?
Because it pays no income, concentrates you in one tenant, and creates taxable income with no cash. Its job is debt replacement, so most exchangers keep it to the slice the debt requires; the traditional DST vs cash out DST guide explains the split.
Is the minimum the same as the amount at risk?
Your subscription is the amount at risk. The loans on our cash out DSTs are non-recourse, so your personal assets are not exposed beyond the equity you invest.
Can two spouses combine to meet a minimum?
Joint net worth or joint income can be used to qualify as accredited under Regulation D. Whether a joint subscription is allowed is set by the offering's subscription documents.
Can I add more cash later to a zero?
Generally no. A DST trustee may not accept additional contributions under Rev. Rul. 2004-86, so the offering is sized when it closes.
What if the zero I want is fully subscribed?
Offerings close when they are full. Identify a backup leveraged option within your 45 days so the debt piece is not left to one trust.
Sources
Checked against these publications on September 30, 2026. Rules and figures change; confirm the current version with your CPA or attorney before you act. This page is general information, not tax or legal advice.
