Run the numbers on BRRRR deals, subject-to acquisitions, lease options, and seller finance — all free, no signup, plain-English results.
Start with the BRRRR Calculator →Purchase price, rehab cost, rent, existing loan terms — whatever the deal requires. No complicated inputs.
Cash-on-cash return, equity pickup, monthly cash flow, and more — calculated instantly in your browser.
Every result includes a plain-English explanation of what the numbers mean — and whether you should do the deal.
Most real estate calculators online are built for conventional buy-and-hold investors using bank loans. Creative finance deals — BRRRR, subject-to, lease options, seller finance — have completely different math. These tools are built specifically for investors who need to analyze creative deals fast, understand how much cash is actually at risk, and make confident offers. Every result is explained in plain English, not spreadsheet jargon.
Creative real estate financing refers to non-traditional methods of purchasing property without conventional bank loans. Common strategies include the BRRRR method, subject-to financing, seller financing, and lease options. These approaches allow investors to acquire properties with less cash upfront or in situations where traditional financing is unavailable.
Yes, creative financing strategies are legal when structured properly. Subject-to financing, seller financing, lease options, and the BRRRR method are all legitimate real estate investment strategies used by investors across the United States. Always consult a real estate attorney before executing any creative finance transaction.
BRRRR stands for Buy, Rehab, Rent, Refinance, Repeat. It is a real estate investment strategy where an investor purchases a distressed property, renovates it, rents it out, refinances to pull out equity, and uses those funds to repeat the process with another property.
Cash-on-cash return is calculated by dividing the annual pre-tax cash flow by the total cash invested, then multiplying by 100 to get a percentage. For example, if you invest $30,000 and receive $3,000 in annual cash flow, your cash-on-cash return is 10%.
Creative financing is a broad label for any property acquisition that does not run through a conventional bank mortgage. That is the whole definition. It is not a loophole, not a trick, and not a modern invention — seller-carried paper and lease options have been part of American real estate for as long as people have been selling property to each other. What makes these structures useful is that they solve problems a bank loan cannot.
A bank underwrites the borrower: credit score, debt-to-income ratio, documented employment, seasoned reserves. Creative structures let you underwrite the deal instead. When a seller owns a property free and clear and cares more about steady monthly income and spreading a capital gain across several tax years than about a lump sum at closing, seller financing serves them better than a cash offer — and it lets a buyer acquire the property without qualifying for anything. Neither party is getting away with something; they are agreeing to terms that a third-party lender was never going to offer either of them.
The calculators on this site each correspond to a different problem, and picking the wrong structure is the most common early mistake.
Seller financing fits a seller with substantial equity — ideally free and clear — who wants income rather than a lump sum. The seller becomes the bank, holds a note, and collects payments. Clean, well-understood, and the least legally fraught of the creative structures.
Subject-to fits a seller with little equity and an urgent need to be out from under a payment. The buyer takes title and continues paying the seller's existing mortgage, which stays in the seller's name. This is the structure with the sharpest edges: the seller's credit remains exposed and the due-on-sale clause is live.
A wrap mortgage fits a seller with equity and an existing low-rate loan they would rather keep in place than pay off. The seller writes a new, larger note that wraps around the old one and earns the spread between them.
A lease option fits a buyer who needs time — to repair credit, to season income, to accumulate a down payment — and a seller willing to trade that time for above-market rent and a locked-in future price.
BRRRR is a different animal entirely: not a financing structure but a capital-recycling strategy that happens to depend on conventional refinancing at the end. It belongs in the same toolkit because it answers the same underlying question — how do you keep buying when your cash runs out?
Every structure above carries risk that a bank loan does not, and an honest assessment of those risks is what separates investors who last from investors who have one good year.
The due-on-sale clause sits in nearly every conventional mortgage and gives the lender the right to demand payment in full when a property transfers. Subject-to and wrap deals can trigger it. Lenders have historically exercised it inconsistently, particularly on performing loans — but "usually doesn't happen" is not "cannot happen," and a rising-rate environment gives lenders a real financial incentive to call cheap loans.
Seller default risk on the underlying loan is the buyer's exposure in wrap deals. You can pay perfectly for six years and still lose the property if the seller pockets your payments instead of forwarding them. Third-party servicing solves this and should be non-negotiable.
Documentation quality is where most creative deals actually fail. A promissory note and a recorded security instrument drafted by an attorney licensed in the state where the property sits will cost a little at the front end and prevent the category of dispute that takes years to unwind. A template downloaded from a forum will not.
Dodd-Frank and the SAFE Act impose real limits on seller financing of owner-occupied residential property, including restrictions on balloon payments and requirements around ability-to-repay in some circumstances. The rules turn on how many properties you finance per year and whether you built the home. Anyone doing this repeatedly needs competent legal guidance, not a rule of thumb.
Every tool on this site is free, runs entirely in your browser, and stores nothing. Start with the structure that matches the seller's situation rather than the one with the most appealing headline return — the numbers only mean something if the structure actually fits. Run your assumptions twice: once at the terms you hope to get, and once at terms a point or two worse. A deal that only works under optimistic assumptions is not a deal, it is a wish.
If a term on any page is unfamiliar, the creative finance glossary defines the vocabulary in plain English. And treat every result as the beginning of due diligence rather than the end of it. These calculators tell you whether the math works. They cannot tell you whether the title is clean, whether the roof is sound, or whether the seller has disclosed everything material — and those are the things that determine whether a deal that pencils on screen actually performs.