The calculator opens with this deal. You buy a house for $200,000 that needs $50,000 of work and should sell for $320,000 when it’s done. The loan covers 90% of the purchase and 100% of the rehab, so it comes to $230,000, and you bring $20,000 toward the price.
At 8.99% the interest-only payment is about $1,723 a month. Two points add $4,600 at closing, so cash to close is $24,600 before your own closing costs. Holding the property for eight months costs about $13,785 in interest, making the total cost of the loan about $18,385.
Selling at $320,000 with 6% selling costs leaves an estimated profit of about $32,400 before title and legal costs, which you can add above. Change any number and the estimate updates.