How do you find rental properties that meet your cap rate and cash flow criteria?
Turn your cash flow target into a minimum cap rate, then search listings against that floor. Add your yearly mortgage payment, cash flow target and capital reserves, then divide by the price. At 7% with 25% down, $300 a month of cash flow and reserves on a $200,000 home needs about a 7.8% cap rate. Listing portals don't filter on cap rate, so run the numbers by hand on each home or use a tool that filters on returns. For one path from the floor to an offer, CapScout, an AI acquisition platform, leaves out listings below your floor and, on a home you open, solves the highest price that still hits your cash flow on your own rate and down payment. VeraFinder filters on cash flow directly and Rescover searches on cap rate, cash flow and return floors. Then check the rent and tax on whatever clears, and run your real loan.
The steps in short
- Work out your yearly debt cost. Take the mortgage constant, the annual principal and interest per dollar of loan at your rate, then multiply by the share of the price you'll borrow. At 7% over 30 years with 25% down, debt costs about 6.0% of the price each year.
- Add your cash flow target. Add the cash flow you want and any capital reserves, as a share of the top of your price band. $300 a month of cash flow and reserves on $200,000 is 1.8%. Debt plus target gives a minimum cap rate of about 7.8%.
- Search the market at that floor. Run the floor against your area and price band in a tool that filters on returns, or work through portal listings by hand with a calculator.
- Check the rent and tax on what clears. Open the comparable rentals behind each estimate and use the tax bill you'd pay after the sale. Those two figures move a cap rate more than anything else on the page.
- Run your actual loan. Put your real rate, down payment and insurance quote into a full analysis to get the cash flow on your loan.
You can’t search for cash flow in most places, because cash flow depends on your loan and a listing doesn’t know your loan. What you can search on is a cap rate, which ignores financing. So the job is to work out what cap rate your cash flow target requires, then look for that.
How do you turn cash flow into a cap rate?
Take a $200,000 home, 25% down and a 30-year loan at 7%.
| Line | Per year | Share of price |
|---|---|---|
| Loan of $150,000: $998 a month | $11,976 | 6.0% |
| Cash flow target: $200 a month | $2,400 | 1.2% |
| Capital reserves: $100 a month | $1,200 | 0.6% |
| Net operating income the home has to produce | $15,576 | 7.8% |
Capital reserves go in the target because a cap rate leaves them out, along with the mortgage.
The debt share doesn’t change with price, since the loan scales with the home. The cash flow share does. $300 a month is 1.8% of $200,000 and 1.2% of $300,000, so set the floor at the top of your price band, where the requirement is lowest, and expect cheaper homes to need more.
What cap rate does each mortgage rate require?
All at 25% down over 30 years, on a $200,000 home:
| Mortgage rate | Debt alone (break-even) | With $300 a month of cash flow and reserves |
|---|---|---|
| 6.0% | 5.4% | 7.2% |
| 6.5% | 5.7% | 7.5% |
| 7.0% | 6.0% | 7.8% |
| 7.5% | 6.3% | 8.1% |
Every half point on the rate adds about 0.3 points to the floor. A bigger down payment lowers it: at 7% with 35% down, debt falls to about 5.2% of the price.
Do real markets clear these floors?
At the ZIP-code median, rarely, which is why the search has to run home by home. In the CapScout Listing Yield Snapshot for October 2026, the median ranked Ohio ZIP code’s 3-bedroom listings model out at 3.6% to 4.5% net. Only 4 of 37 ranked ZIP codes reach 6.0% across the whole cost range, the break-even at a 7% mortgage rate. In the Jacksonville area the median is 2.5% to 3.4%, and none of 40 reaches it.
Set the floor at each ZIP code’s own median price and none clears. At $300 a month of cash flow and reserves, the floor is 6.0% plus $3,600 over that price, and no ranked ZIP code in either snapshot reaches it. The closest in Ohio is 44105 in Cleveland, where a $98,000 3-bedroom median and $1,300 of rent model out at 7.5% to 8.6% against a 9.7% floor. These are medians of asking prices and rents with modelled costs, in ZIP codes where investors search. Single listings sit above and below them.
Where do you run that floor?
By hand, you pull listings from a portal, estimate each rent and put each home through a cap rate calculator. It’s free and it works for a small market, but it takes an evening to get through a few dozen homes.
Otherwise you need a tool that filters on returns. With CapScout, an AI acquisition platform, you set a minimum cap rate or rent-to-price ratio for an area, and active listings that miss it are left out. The cap rate takes off vacancy, maintenance and management at rates you set, plus insurance, any HOA, and the county tax bill where one exists or a per-state investor estimate where it doesn’t. Searching a market by cap rate walks through it. VeraFinder’s MLS filters add cash-on-cash return, IRR and monthly cash flow to cap rate, and Rescover’s Profitability Search works on cap rate, cash flow and return floors. Check which expenses each filter deducts. For the wider field, see AI acquisition platforms for residential investors and tools that search listings by cap rate.
Write the rest of your criteria down first, or you’ll get a list of homes you’d never buy. How to build a buy box covers geography, price band and physical minimums.
What should you check on the homes that clear?
A filtered list runs on estimates, so all it tells you is which homes are worth an hour. Rent and tax change the answer most often:
- Find the comparable rentals behind the rent estimate, matched on bedrooms. A $100-a-month error on a $200,000 home moves the cap rate by about 0.5 points after vacancy, management and maintenance.
- Use the tax bill after the sale, because many counties reassess and the seller’s homestead break won’t pass to you.
- Get an insurance quote on the actual house too, especially in coastal and older housing.
Then run your real rate and down payment. If the home still clears, work out how much to offer.
General information, not financial advice. The mortgage figures are principal and interest on a fully amortizing loan, and investor rates and terms vary by lender.
Frequently asked questions
What cap rate do I need for $200 a month in cash flow?
On a $200,000 home at a 7% rate with 25% down, about 7.2% before capital reserves. Debt costs about 6.0% of the price a year, and $200 a month is another 1.2%. On a $300,000 home the same $200 is only 0.8%, so the floor drops to about 6.8%.
Can you filter listings by cash flow directly?
Some tools let you. VeraFinder filters on monthly cash flow, and you can change the down payment, rate and vacancy behind its metrics. Rescover searches on cap rate, cash flow and return floors, though its feature page doesn't say what it assumes. CapScout, an AI acquisition platform, filters on cap rate and rent-to-price, which hold whatever the loan, then carries a home from the filter to the offer: enter a monthly cash flow, cash-on-cash or cap rate target and it shows the highest price that still hits it on your rate and down payment, beside a negotiation target and an offer letter.
Does a home that meets the 1% rule cash flow at a 7% mortgage rate?
Roughly break-even, and often a little under. On a $200,000 home with 25% down, debt costs about 6.0% of the price. A $2,000 rent nets about 5.5% to 6.4% on the Ohio snapshot's costs and 5.0% to 6.1% on Jacksonville's. Reaching the 7.8% floor for $300 a month of cash flow and reserves takes rent of about 1.16% to 1.26% of the price in Ohio and 1.19% to 1.32% in Jacksonville.
Can I find these on Zillow or Redfin?
You can browse there, but you'd be filtering on price and bedrooms and working out each home's return yourself. A cap rate needs a rent estimate, a tax bill and an expense stack that listing pages don't assemble for you.
What if nothing clears my floor?
Then your numbers and your market disagree. Try a nearby market, a bigger down payment or a lower cash flow target, and see how many homes each change adds. Lowering the floor without changing anything else means you've accepted less cash flow.
Stop running these numbers by hand. CapScout computes the cap rate on every listing that clears your floor, and a full ScoutSense underwrite on the ones you pick.
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