You've Run the Numbers on a Short-Term Rental. Now What?
You've plugged every number into the underwriting sheet. Revenue forecasts, operating expenses, renovation budget, debt service: all accounted for. The spreadsheet says your cash-on-cash return could land somewhere between 7% and 14%.
Is that good? Should you make an offer?
Most investors get stuck right here. Not because they lack data, but because they lack a framework for interpreting it.
Part One: Define What "Good" Actually Means to You
Every investor has a different definition of a good deal. If you haven't defined yours before you start underwriting, you'll second-guess every property you analyze.
Some investors need cash flow above everything. They want $3,000 a month hitting their account. For them, a property that breaks even but appreciates 10% per year is a bad deal, because appreciation doesn't pay the mortgage on their primary residence.
Others are deploying capital for tax savings. They're high-net-worth individuals using the short-term rental tax loophole. If the property breaks even and saves them $200,000 in taxes, they'll accept even a small monthly loss.
There's no universal answer. But there is a universal requirement: know your answer before you underwrite. Write it down.
Part Two: Underwrite 10-20 Properties to Find the Baseline
Here's where most investors go wrong: they underwrite one or two properties, see a 10% cash-on-cash return, and have no idea if that's exceptional or mediocre for their market.
The fix is volume. Underwrite 10 to 20 properties within your buy box. Same market, same general property type, same amenity strategy. What you'll find is a pattern.
Nearly every deal will cluster around a similar return. That cluster is your baseline. It's what the market gives you by default.
Performance tier data shows how revenue clusters in a market. Once you know the baseline, outliers become obvious.
Once you know the baseline, a property projecting 15% in a market where everything else returns 10% isn't just good. It's the deal you move on immediately.
Part Three: Live and Die by the Worst-Case Column
Your underwriting sheet has three columns: low, mid, and high. Stop looking at the high column. The high column is where you land if everything goes right. It's the cherry on top, not the sundae.
The question that matters: if the worst-case scenario happens, can you live with it?
If the low column shows $22,000 in annual cash flow and a 7% cash-on-cash return, and you look at those numbers and feel fine (not thrilled, but fine), that property will almost always work out. Because anything above the worst case is upside you didn't need to survive.
STRProfitMap shows revenue at four percentile bands. The P25 band is your worst case. If it works at P25, the deal has a margin of safety.
The investors who sleep well are the ones whose worst-case scenario still puts money in their pocket. The investors who panic-sell are the ones who needed their best-case scenario to survive.
Purchase Price as a Cash Flow Lever
Two properties in the same neighborhood. Same bedroom count. Same revenue potential of $120,000-$140,000. One costs $750,000. The other costs $650,000 because it has an older kitchen and dated floors.
The cheaper property has a debt service that's roughly $6,400 less per year. That's $6,400 going straight to your cash flow, without generating a single extra dollar of revenue.
Could you redo the kitchen and floors for less than $100,000? If yes, the cheaper property is the better deal.
Start Finding Outlier Deals in Your Market at STRProfitMap. The tools, market data, and frameworks to spot the deals worth pursuing are all in one place.

