Seller Finance Offer Calculator for Airbnb Investors — Owner Financing Spreadsheet + Term Sheet — Excel

What does this seller-finance deal actually cost vs going to a bank? Seller-finance offer calculator for Airbnb / STR investors. Side-by-side compare + draft term sheet for the seller. Excel + Google Sheets.

Seller financing sounds great until you do the math. The seller offered 7%
when bank rates are 7.5%. Sounds like a win. But the seller wants 25%
amortization on a 5-year balloon — and you can't qualify for a refi in 5 years
if rates haven't dropped. That "win" turns into a forced sale or default.

This workbook runs the real math. Monthly payment, total cost over loan life,
cash flow vs conventional financing, balloon-risk year. Plus a draft term
sheet ready to hand the seller for negotiation.

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WHAT'S INCLUDED
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📋 Conventional Baseline — 25%-down conventional terms (rate, term, P&I)
📋 Seller-Finance Inputs — proposed terms (down, rate, amort, balloon, term)
📋 Stabilized Cash Flow — projected NOI under each financing path
📋 Side-by-Side Compare — monthly payment, total interest, cash flow, year-1 IRR
📋 Total Cost Over Life — seller-finance often costs 5-15% MORE in total interest
📋 Balloon Risk Flag — if balloon, surfaces the refi-risk year
📋 Draft Term Sheet — hand to seller (or seller's attorney) to start negotiations

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WHEN SELLER-FINANCE WINS
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· Seller wants out faster than the market is moving
· You can't qualify conventional (DSCR low, self-employed, ramp time)
· Seller takes 5-6% rate where conventional is 7-8%
· Flexibility on amortization (interest-only first 2-3 years)

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WHEN SELLER-FINANCE LOSES
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· Above-market rate ("but I'm taking the risk")
· Balloon arrives + rates haven't dropped + your DSCR isn't refi-ready
· Total interest paid > equity gained over hold period

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WHO THIS IS FOR
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· Investors negotiating seller-financed STR acquisitions
· Self-employed buyers locked out of conventional loans
· Buyers in markets with seller-friendly conditions

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FILE COMPATIBILITY
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✅ Excel 2016+ · ✅ Excel 365 · ✅ Google Sheets

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REFUNDS
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14-day refund, no questions. hello [!at] thestrledger.com.

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⚠ Digital product. Not legal or financial advice. Term sheet output is a draft — customize for jurisdiction before signing.