What Is Subto (Subject To) in Real Estate?
Subto is investor shorthand for subject to -- a real estate acquisition strategy where you purchase a property while leaving the seller's existing mortgage in place. The deed transfers to you (you own the property), but the loan stays in the seller's name. You take over the mortgage payments without formally assuming the loan through the lender.
Subto deals are a core creative financing technique because they let investors acquire properties with little to no money down, often at below-market interest rates locked in years ago. The strategy has gained significant popularity in high-interest-rate environments where new financing at 7-8% is expensive, but sellers have existing loans at 3-4%.
How a Subto Deal Works
- Find a motivated seller with an existing mortgage who needs to sell but can't through traditional channels (not enough equity for agent commissions, behind on payments, relocating).
- Negotiate the purchase: You agree to take over the property and make the existing mortgage payments. The seller gets relief from the payment obligation and any cash you offer at closing (often minimal or zero).
- Close the deal: The seller signs a deed transferring ownership to you (or your LLC). The deed is recorded. The mortgage remains in the seller's name with the lender.
- Make payments: You begin making the seller's mortgage payments. You may rent the property (cash flow strategy) or renovate and resell.
Why Sellers Agree to Subto
The most common scenarios:
- Pre-foreclosure: The seller is behind on payments and about to lose the property. A subto buyer catches up the arrears and keeps the loan current, saving the seller's credit from a foreclosure.
- No equity: The seller owes nearly what the property is worth. They can't sell traditionally because there's no room for agent commissions and closing costs.
- Relocation urgency: The seller needs to move immediately and can't wait for a traditional sale.
- Divorce: One spouse needs off the property and doesn't care about equity, just relief from the payment.
The Due-on-Sale Clause Risk
The biggest concern with subto deals is the due-on-sale clause. Nearly every mortgage contains a provision allowing the lender to call the loan due in full if the property is transferred without lender consent. In theory, recording a new deed triggers this clause.
In practice: Lenders rarely exercise the due-on-sale clause as long as payments are being made on time. Banks are in the business of collecting interest, not foreclosing on performing loans. However, the risk exists, and investors should understand it fully before pursuing subto deals. Consult a real estate attorney in your state.
Subto vs. Loan Assumption
| Factor | Subject To | Loan Assumption |
|---|---|---|
| Lender involvement | None (lender not informed) | Lender approves transfer |
| Liability | Loan stays in seller's name | Loan transfers to buyer's name |
| Qualification | No credit/income check | Buyer must qualify |
| Due-on-sale risk | Yes (clause could be triggered) | No (lender consented) |
| Availability | Any property with a mortgage | Only FHA, VA, USDA (most conventional are non-assumable) |
When Subto Makes Sense
The strategy is most powerful when the existing loan has favorable terms you can't get today: a low interest rate (sub-4%), a fixed rate with decades remaining, or substantial principal already paid down. It's also valuable when the property has thin equity that makes a traditional purchase unworkable but the cash flow works as a rental.
Subto is less appropriate when the existing loan balance is close to or above market value with unfavorable terms, or when the seller isn't truly motivated and wants significant cash at closing (which defeats the purpose of creative financing).