Seller Financing Calculator

Seller financing, also called owner financing, means you act as the bank. Instead of the buyer getting a mortgage, they sign a promissory note to you and make monthly payments directly to you. The deed transfers at closing like any other sale. The difference is that you hold a note secured by the property instead of walking away with all the cash.

If the buyer stops paying, the security instrument, a deed of trust here in Tennessee, is what lets you foreclose and take the property back.

How to Calculate a Seller Financing Deal

Five numbers decide everything:

1. Sale price. What the buyer agrees to pay.
2. Down payment. What they hand you at closing. This is your cash today and your cushion if the deal goes sideways.
3. Interest rate. What you charge to carry the note. This is where your return lives.
4. Amortization. The schedule the payment is calculated on, often 20 or 30 years.
5. Term. How long before the balance comes due. This is usually far shorter than the amortization, which is what creates a balloon payment.

The payment is calculated on the amortization. The payoff is driven by the term. A note amortized over 30 years with a 5 year term means your buyer makes 30 year sized payments for 5 years, then owes you the rest in one lump.

That gap is the part sellers miss, and it is the number this calculator makes obvious.

How Seller Financing Works, Step by Step

1. You and the buyer agree on price, down payment, interest rate, amortization, and term.
2. Those terms go into a promissory note and a deed of trust, drafted by an attorney.
3. You close through a title company, same as a conventional sale. Title is searched, the deed records, and the note and deed of trust record behind it.
4. The buyer pays you monthly. Most sellers use a third party loan servicer to collect, track interest and principal, and issue the tax forms.
5. At the end of the term the buyer either pays the balloon, refinances into a bank loan, or sells the property and pays you off.

How Do You Structure a Seller Financing Deal?

There is no single right structure, but the levers are always the same, and they trade against each other:

• A bigger down payment lowers your risk and lowers your monthly income.
• A higher interest rate raises your return and narrows the pool of buyers who will agree.
• A longer amortization makes the payment affordable and slows how fast you get principal back.
• A shorter term gets you paid off sooner and puts more pressure on the buyer to refinance.

The deal has to work for both sides or it does not close. Run several versions in the calculator before you decide which one you are willing to take.

Is Seller Financing Worth It?

Sometimes. Here is the honest version of both sides.

What it can do for you

• You collect interest, so your total take can exceed the cash price.
• You can spread the gain across years rather than recognizing it all at once.
• You open the property to good buyers who cannot get a conventional loan, which can mean a faster sale or a stronger price.
• Monthly income without owning, maintaining, or managing the property.

What can go wrong

• The buyer stops paying and you have to foreclose, which costs time and money.
• The property comes back in worse shape than you sold it.
• Your money is tied up. If you need the full amount now, this is the wrong tool.
• The balloon does not get paid because the buyer cannot refinance.

You do not need a mortgage-free house to do this, but it is far simpler if your loan is paid off or nearly so. An existing mortgage with a due-on-sale clause changes the whole conversation, and that is worth a call before you go further.

The Tax Side: Installment Sales

When you carry the note, the IRS generally treats it as an installment sale, which lets you report the gain across the years you receive payments rather than all in the year you sell. The interest you collect is taxed separately as ordinary income.

I am a Realtor, not a CPA or an attorney. How this lands depends on your basis, your other income, depreciation you have taken, and what you are selling. Get your own CPA to run your actual numbers before you structure anything around the tax treatment.

Getting the Paperwork Right

A seller financed deal has two layers of paperwork. First there is the real estate contract, the purchase agreement and the seller financing addendum that spell out price, down payment, interest rate, amortization, and term. Then there are the loan documents, the promissory note and the deed of trust that actually secure your position.

If you are here in Middle Tennessee, I handle the first layer. I will sit down with you, structure the terms, and prepare the purchase agreement and the seller financing addendum. From there the closing attorney at the title company prepares and finalizes the note and deed of trust, and we close there the same as any other sale.

If you are somewhere else, do not download a template and fill it in yourself. Get a real estate attorney in your state to paper it.

Either way, somebody licensed needs to touch this. Seller financing on owner occupied residential property is regulated. Federal rules including Dodd-Frank and the SAFE Act limit how many of these one person can do, whether the terms can carry a balloon, and when a licensed loan originator has to be involved. The limits are different for investment property and for land. That is not a reason to avoid seller financing. It is a reason to do it properly.

Two Seller Financed Deals I Closed

The seller who wanted to leave something behind

An older client of mine was selling property with two goals that pulled against each other. He wanted to cut the tax hit, and he wanted to leave his children something that kept paying after he was gone. A cash sale did neither. It would have handed him one taxable lump and then nothing.

So he carried the note. Twenty five year term, ten percent down, two and a half percent interest.

That rate is low on purpose. He was not chasing yield. He was building a monthly check that outlives him and passes to his kids, and spreading the gain across years instead of taking it all in one. For what he actually wanted, it beat the cash offer.

The buyer nobody would lend to, for the wrong reason

Most people assume seller financing is for buyers with weak credit. This one was the opposite. My client had a great job, great credit, and looked excellent on paper.

The problem was not the buyer. It was the property. The house was not financeable through a traditional lender.

So the seller was stuck with a home the banks would not touch, and my buyer wanted that exact home. I put together a seller financed structure that worked for both of them. My client got the house. The seller sold a property that conventional lending had made unsellable.

That is the case nobody talks about. Sometimes it is not the borrower who fails underwriting. It is the house.

Seller Financing in Middle Tennessee

I work these deals in Williamson, Maury, and Davidson counties, and I will tell you plainly whether yours is a good candidate. Not every house is. If you owe a lot on it, or you need all your equity to buy the next place, seller financing is probably not your answer and I will say so.

If you own it free and clear, or close to it, and the idea of monthly income instead of a single check sounds better than what you have been offered, that is the conversation worth having.

Not in Tennessee? I Can Still Help.

Plenty of people who land on this page are not in my market, and that is fine.

Tell me where you are and what you are trying to do. I find and interview top Realtors in your area to make sure they are a great fit for your real estate needs, then I hand you the one I would use myself. It costs you nothing.

Reach out by DM, text, or call 615-392-1186.

Run Your Numbers, Then Call Me

Use the calculator above on your own house. Change the down payment, change the rate, change the term, and see what each version pays you.

Then reach out by DM, text, or call 615-392-1186 and I will tell you what I think, including whether I think you should just take the cash.

Frequently Asked Questions

How do you calculate seller financing?

Take the sale price, subtract the down payment, and that balance is the note. The monthly payment is calculated from that balance using the interest rate and the amortization schedule. If the term is shorter than the amortization, whatever is left at the end of the term is the balloon payment. The calculator above does all four steps at once.

Is seller financing worth it?

It can be, if you own the property outright or nearly so and you want monthly income and spread out gain recognition instead of one lump sum. It is not worth it if you need all your equity now, or if you are not prepared to foreclose should the buyer stop paying.

How do you structure a seller financing deal?

You agree on five terms: price, down payment, interest rate, amortization, and term. A larger down payment reduces your risk, a higher rate raises your return, a longer amortization lowers the payment, and a shorter term gets you paid off sooner with a balloon. An attorney puts the agreed terms into a promissory note and a deed of trust, and you close through a title company.

How do you qualify for seller financing?

There is no universal standard, because the seller sets it. Most sellers look at the size of the down payment, proof of steady income, credit history, and a credible plan to refinance before the balloon comes due. On owner-occupied homes, federal ability-to-repay rules can require the seller to verify the buyer can actually afford the payment, which is one more reason to involve an attorney.

What is the difference between seller financing and owner financing?

Nothing. They are two names for the same arrangement. You will also hear it called a purchase money mortgage or carrying paper.

Can you use seller financing on a house that will not qualify for a mortgage?

Yes, and it is one of the most common reasons these deals happen. Lenders underwrite the property as well as the borrower. Condition issues, an unpermitted addition, acreage, a manufactured home, or a title problem can all make a house unfinanceable even when the buyer's credit and income are excellent. When the seller carries the note, the bank's property standards are no longer in the way. The seller sets the terms.

Do you need to own your home free and clear?

Not always, but it is much simpler. If you still have a mortgage, its due-on-sale clause can let your lender call the full balance when the property transfers. That has to be dealt with before you structure anything.

What is a good interest rate for seller financing?

There is no set rate. It is whatever you and the buyer agree to, and it is the term that decides your return. Two things anchor it. First, a buyer who could get a bank loan will compare your rate to one, so look at today's mortgage rates before you name a number. Second, the IRS sets a minimum rate for seller carried notes, the Applicable Federal Rate, and a note written below it can have interest imputed for tax purposes. Have your CPA confirm this month's rate before you sign.