The Numbers to Run Before You Buy Any Nashville Rental Property

• Property taxes. Davidson County reassessed values recently, and Metro tax rates apply differently than in Williamson or Rutherford. Check the actual parcel, not an estimate.
• Insurance. Landlord policies cost more than owner-occupied, and if the property sits in or near a flood zone along the Cumberland or a creek, add flood coverage.
• Property management. Even if you self-manage now, budget 8 to 10 percent so the number is honest when you hand it off later.
• Maintenance and repairs. A common rule is 1 percent of value per year, more for older homes. Nashville has a lot of pre-1970 housing stock in neighborhoods like Inglewood and East Nashville. Old bones mean old plumbing.
• Capital expenditures. Roofs, HVAC, water heaters. These don't hit monthly, but they hit hard. Set aside for them.
• Vacancy. No unit rents 365 days a year. Assume it sits empty part of the time and budget for it.

Add those up before you celebrate a rent number. A property that grosses $2,400 and nets $400 after everything is a very different investment than the one you imagined.

Know your cap rate and why it matters more than the sticker price

Cap rate is net operating income divided by purchase price. It tells you the unleveraged return, the yield if you paid cash. It's the fastest way to compare two properties honestly, because it strips out your financing and just asks: how hard does this asset work?

Nashville cap rates have compressed over the last several years because prices climbed faster than rents. That's the tension every investor here feels. A low cap rate isn't automatically bad, it can signal a strong, appreciating area, but you need to know you're accepting lower current yield in exchange for a bet on future value. Just don't confuse the two. Buying a 3 percent cap and calling it cash flow is how people talk themselves into losing money.

Calculate cash-on-cash return, because that's what you actually earn

Cap rate ignores your loan. Cash-on-cash return doesn't. Take your annual cash flow after debt service and divide it by the actual cash you put in: down payment, closing costs, and any upfront repairs. That's your real return on the money that left your bank account.

This is where financing changes everything. Interest rates in 2026 are meaningfully higher than the rates that made a lot of older deals pencil, so run the numbers at the rate you'll actually get, not a rate you hope appears. A property that cash flows at 5 percent debt might not at 7. Do the math both ways and know your breakeven.

Stress test the deal before you fall in love with it

The deals that hurt people are the ones that only work under perfect conditions. So break yours on purpose before the market does. Ask what happens if rent comes in $150 under your estimate. What happens if the unit sits vacant for two months. What happens if the HVAC dies in year one. If any single normal event turns your cash flow negative, the margin is too thin.

Pay special attention to the short-term rental angle if that's your plan. Nashville's non-owner-occupied short-term rental rules are restrictive and enforced, and many neighborhoods and HOAs ban them outright. A number built on nightly rates can evaporate if the permit isn't real. Verify the property's zoning and permit status before it touches your spreadsheet.

Don't skip the 1 percent gut check, but don't worship it either

A quick screen many investors use is the 1 percent rule: monthly rent should equal roughly 1 percent of purchase price. In much of Nashville right now, very little clears that bar, because prices have outrun rents in the core neighborhoods. That doesn't mean nothing here is a good buy. It means the 1 percent rule is a filter, not a verdict. Use it to sort quickly, then run the full numbers on anything that gets close.

If you want a grounded picture of local rents and vacancy to sanity-check your assumptions, HUD publishes area rent data you can lean on. The HUD Fair Market Rents lookup is a useful reference point for the Nashville metro.

Run every one of these numbers before you offer. The good deals survive honest math. The bad ones only survive optimism, and optimism doesn't pay a mortgage.