Run the whole play on any deal before you spend a dollar. Go manual step by step, or hit AUTO and let the machine run it all. Five steps, real 2026 numbers, and the truth about whether your capital comes back at today's rates.
Two ways. Manual walks you through all five steps yourself. Auto takes your first numbers and runs the whole deal for you. One button, full report.
Step one is Buy. Type in the price, your closing costs, and how you would fund it. Cash means the full price comes out of your pocket. Hard money or conventional means you put a down payment down and borrow the rest. The lab adds it up and shows your total cash in.
Step two is Rehab. Go line by line. Each one shows the 2026 national average range so you have a starting point, but these are estimates, not quotes. Your market will differ. Type your number for each line. If a line does not apply, leave it at zero. The slider at the bottom adds a contingency for surprises, because there are always surprises.
Step three is Rent. Enter the monthly rent you can realistically charge. Check actual listings near the property. Do not guess. Then set your reserves for vacancy, maintenance, and management, plus insurance and taxes. The lab shows what the property actually keeps each month before any loan payment.
Step four is Refinance. Enter the after repair value based on sold comps nearby, not an automated estimate. Set today's rate and your max loan to value. The lab figures your max loan, your new monthly payment, how much cash comes back to you, and how much stays stuck in the deal. This is the moment of truth at today's rates.
Step five is Repeat. If cash is stuck in the deal, the lab counts how many months of cash flow it takes to earn it back, and the date you are ready for the next one. Save the deal below to track it. Then hit the summary for the full math on one page.
The full math on one page. Check it, save it, print it, take it to your lender and your contractor.