Rental Yield Calculator: Gross vs Net Yield Explained

I was in a parking lot, re-running the same deal for the third time

I was sitting in my car outside a showing, phone balanced on the steering wheel, and I kept getting two totally different “yields” depending on which notes I trusted. One line said the place would do about 7.4%. Another said more like 4.9%. Same property. Same rent. Same me, apparently losing my grip on basic arithmetic.

So yeah, if you’re looking at a rental this week and you’re seeing gross yield, net yield, cap rate, cash-on-cash… and it all feels like the same idea dressed up in different clothes, you’re not crazy. I nodded like I understood for a long time. I didn’t.

Gross yield is the quick-and-dirty headline. Net yield is the “okay but what do I actually keep?” number.

And the gap between them is where deals go to die.

Gross yield: the number that makes listings look good

Gross yield is basically rent divided by price. That’s it. It ignores the excessiveness of real life: vacancy, repairs, property taxes, insurance, management, HOA, lawn care, the water heater that waits until the coldest week of the year to quit… all of it.

So if you’re scrolling listings and one says “8% yield!” what they almost always mean is gross yield. It’s not a scam exactly, it’s just… incomplete. Like quoting MPG downhill with a tailwind.

Quick worked example (numbers I see all the time): you’re looking at a small single-family rental listed at 260,000 and you think you can rent it for 1,850/month.

• Annual gross rent = 1,850 × 12 = 22,200
• Gross yield = 22,200 ÷ 260,000 = 0.0854 → about 8.5%

8.5% sounds awesome, right? That’s the point.

But you don’t get to keep gross rent. You get what’s left after the property takes its bite.

If you want to sanity-check that gross number fast, use this:

Net yield: where the truth lives (and it’s usually lower)

Net yield is gross yield after operating expenses. Not mortgage payments — expenses. That distinction matters, and it took me a while to figure out why.

Net yield answers: “If I owned this place free and clear, what percent of the purchase price would it return each year after normal costs?” It’s closer to cap rate than it is to cash-on-cash, and if you’re comparing two properties in different cities with different tax/insurance realities, net yield is the one that behaves like an adult.

So let’s take that same 260,000 property and run it like you actually own rentals and you’ve been punched in the face by expenses before.

Assumptions (you can argue the percentages, and you should):

Now do the math:

• Effective rent after vacancy = 22,200 − 1,110 = 21,090
• Operating expenses (tax + insurance + maintenance + management) = 3,200 + 1,400 + 1,776 + 1,776 = 8,152
• NOI = 21,090 − 8,152 = 12,938
• Net yield = 12,938 ÷ 260,000 = 0.0498 → about 5.0%

Same property. Same rent. Gross yield about 8.5%. Net yield about 5.0%.

That difference is not “small.” That’s the whole deal.

And if you want to run this quickly with your own expense assumptions (because your insurance quote might be 2,100, not 1,400), use: net rental yield calculator.

Here’s the thing: net yield is still not the whole story if you’re financing. It’s just the right “apples to apples” lens for property performance before debt.

Okay, but what about cap rate and cash-on-cash?

This is where people mash terms together and then argue online.

Cap rate is basically net yield if you’re using the property’s current market value (or purchase price) and NOI. If you calculate net yield the way I did above, you’re already living in cap-rate territory. So if someone tells you “this deal is a 6 cap,” they mean NOI ÷ price ≈ 6%.

Cash-on-cash is different. It cares about your financing and your actual cash invested. It answers: “How hard is my cash working?” If you put 65,000 down plus, say, 6,500 in closing costs and initial fixes (paint, locks, random stuff you can’t unsee after inspection), your cash in might be about 71,500. Then you take annual cash flow after debt service and divide by that cash invested.

Let’s keep the same example and add a loan (I’m making simple assumptions here because your lender will do lender things):

• NOI ≈ 12,938 (from above)
• Annual debt service (principal + interest) maybe around 13,200 if your payment is about 1,100/month (depends on rate, term, loan amount)
• Annual cash flow ≈ 12,938 − 13,200 = −262 (yep, slightly negative)
• Cash invested ≈ 71,500
• Cash-on-cash ≈ −262 ÷ 71,500 = −0.37%

So you can have an 8.5% gross yield, a 5.0% net yield (roughly a 5 cap), and basically zero cash-on-cash if the debt is heavy enough. That’s not weird. That’s normal.

If you want to run the “with financing” view cleanly, use:

And yes, you can still buy that deal if you’re betting on appreciation, rent growth, or you’re doing a value-add plan. I’m not here to tell you not to. I’m here to keep you from accidentally lying to yourself with gross yield.

One more thing, because it trips people: if you’re comparing two properties and one has an HOA and the other doesn’t, gross yield won’t even notice. Net yield absolutely will. Same with taxes in two counties that look “nearby” on a map but live in different universes.

Want the fast version embedded right on the page? Here you go.

The way I actually use these numbers on a real deal

I’ll tell you what I do, and you can steal it.

I start with gross yield because it’s quick and it tells me if I should even bother. If gross yield is 4% and the property needs a roof, I’m not opening a spreadsheet. If it’s 9%+ in a market where expenses aren’t totally insane, okay, I’ll keep going.

Then I switch to net yield and I get a little pessimistic on purpose. I’ll add vacancy even if the agent says “it’s never been vacant” (cool story). I’ll include management even if you’re self-managing (because you might not want to be doing that forever, and also your time isn’t free). I’ll bump maintenance if the place is older, has big trees, has a finished basement, has a deck, has anything that screams “I will rot quietly.”

Then I look at cap-rate-ish net yield and ask: is this in the ballpark of what this market pays for risk? If stabilized rentals around here trade around 5.5% to 6.5% and my net yield is 4.7%, I need a reason. Maybe it’s under-rented and I can push rent. Maybe it’s in the best school zone and it stays full forever. Maybe it’s just overpriced and I should offer lower.

And only after that do I run cash-on-cash, because financing can make a decent property look awful (or make a mediocre property look “fine” for a year or two). Cash-on-cash is where you see if you’re buying an investment or buying yourself a second job with surprise bills.

If you want one more tool for the “is this even rentable at this price?” gut check, I use this sometimes: rent to price ratio calculator.

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