Money
·8 min read
·April 8, 2026
Nashville: What the Math Can and Can't Tell You
Jordan has $45K saved and a $450K Inglewood starter home in mind. The math gives him a range, not a verdict.
Jordan is 32, earns $85,000, and has been renting a two-bedroom in East Nashville for two years. He pays $2,100 a month and has slowly built a life in the neighborhood: the coffee shop two blocks over, the running trail along the river, the bars on Gallatin Pike he's become a regular at.
His landlord answered a question he'd been avoiding. The renewal came with a rent increase, and suddenly buying felt worth looking into.
He found a three-bedroom in Inglewood, one neighborhood north of where he already lives. A 1960s ranch on a tree-lined street, ten minutes from everything he uses. At $450,000 it was at the top of what he'd been willing to consider.
He has $45,000 saved, enough for 10 percent down. The question is whether buying actually makes financial sense for where he is in life.
What buying this home actually costs per month
The mortgage payment is the number people plan around, but it's only part of what ownership costs. Property tax, home insurance, and maintenance are fixed parts of the picture for any buyer.
There's no HOA, which keeps the number cleaner than a condo would. But Jordan is putting 10 percent down, which means PMI. At 10 percent down, that's roughly $188 a month until he reaches 20 percent equity. At 4 percent annual appreciation that happens around year 3.
Maintenance is the cost that catches buyers off guard. A roof doesn't fail on a schedule. Neither does an HVAC system or a water heater. Jordan's $8,000 annual maintenance budget is what those costs average out to over time.
Those costs stack on top of a $2,600 mortgage and bring the true monthly cost of ownership to around $4,000.
The inputs below are pre-filled with Jordan's numbers.
The Month 1 card at the bottom shows the full picture. If your situation looks different, adjust any input and the numbers update in real time.
Buying
The Property
The Loan
Ongoing Costs
Renting
Month 1 Cost Breakdown
True cost of each path in the first month
Buying
Renting
$1,767/mo more to buy than to rent in month 1
The forced savings argument, and when it actually kicks in
One of the most common cases for buying over renting is that a mortgage builds equity while rent builds nothing.
That's true over time... in the early years the picture is more complicated.
In month one of Jordan's mortgage, about $2,278 of his $2,628 payment goes to interest! The remaining $350 reduces what he owes on the loan, converting slowly into ownership while the rest covers the cost of borrowing the money.
It takes roughly 21 years before the principal portion of each payment overtakes the interest portion. The equity build accelerates meaningfully in the back half of the loan, not the front.
Where Your Mortgage Payment Goes
Interest vs. principal by year — $405K loan at 6.75%, 30-year fixed
5.5%
$422,837
total interest
6.75% ← Jordan
$540,656
total interest
8.0%
$664,826
total interest
At 10% down, Jordan also pays PMI of ~$188/mo until his equity reaches 20% – at 4% annual appreciation, the model estimates that happens around year 3.
At 6.75%, Jordan will pay around $541,000 in interest over 30 years on a $405,000 loan. At 5.5% that number drops to around $423,000. At 8% it exceeds $665,000. Small differences in the rate you lock in compound into enormous differences in what the home actually costs you over time.
What each path builds over twenty years
The amortization chart showed the cost side of buying. This step looks at the other side – what Jordan actually accumulates under each path over time.
If he buys, his $45,000 down payment converts into equity that grows as the loan pays down and the home appreciates. If he keeps renting, that $45,000 goes into a portfolio instead, and the roughly $1,769 he is not spending on the ownership premium gets reinvested alongside it every month.
Jordan: Home Equity vs. Renter Portfolio Over 20 Years
The renter portfolio leads throughout the 20-year window. The gap narrows in the back half, and the reason is rent. At 3 percent annual rent increases, Jordan's $2,200 rent climbs to roughly $4,000 by year 20, closing the monthly cost difference that gave the renter portfolio its early advantage. The lines don't cross within this window at these assumptions, but the margin compresses.
Nashville prices surged dramatically in 2020 and 2021, pulling the long-run average well above what the market is likely to deliver going forward, according to the Greater Nashville Realtors 2024 Housing Market Report. Since rates rose in 2022, appreciation has averaged closer to 3 to 4 percent annually. The projection uses 4 percent as a forward estimate.
The portfolio return assumes 7 percent annually, roughly the inflation-adjusted average return of the S&P 500 over the past 100 years.
The apples-to-apples comparison
IRR (internal rate of return) is how the calculator reduces both paths to a single comparable number. It is the annualized return on the capital Jordan puts in on day one, under each path.
Too close to call at 10 years.
The IRR gap between both paths is less than half a percentage point at these inputs. The heatmap below shows where the verdict shifts.
Buyer IRR
17.3%
After-tax proceeds: $287,335
Renter IRR
17.3%
After-tax proceeds: $288,643
No one can predict where appreciation or market returns land over the next decade.
What you can do is run the scenario across a range of assumptions and see how often each path wins. In Jordan's case, the grid is genuinely split, and which half you land in depends almost entirely on the appreciation assumption.
How Sensitive Is This?
IRR advantage by home appreciation rate vs. market return rate, at a 10-year horizon
| Home Appreciation | |||||
|---|---|---|---|---|---|
| 2% | 3% | 4% | 5% | 6% | |
| 5% | +4.2% rent | +1.1% rent | +1.6% buy | +3.8% buy | +5.6% buy |
| 6% | +5.0% rent | +1.9% rent | +0.8% buy | +3.0% buy | +4.8% buy |
| 7% | +5.9% rent | +2.8% rent | +0.1% rent | +2.1% buy | +3.9% buy |
| 8% | +6.7% rent | +3.6% rent | +0.9% rent | +1.3% buy | +3.1% buy |
| 9% | +7.6% rent | +4.5% rent | +1.8% rent | +0.4% buy | +2.2% buy |
Each cell reruns the full projection at that combination of rates. All other inputs are held constant.
Nashville has historically averaged 5–6% annually – those cells are in the grid. Forward forecasts project 2–4%. Jordan's base case sits at the top of that range.
At 3 to 4 percent appreciation, renting wins across most combinations of market returns. At 5 to 6 percent, Nashville's long-run historical pace before the pandemic surge, buying wins in several cells. The honest answer is that Nashville's verdict depends on whether you think the market returns to its pre-pandemic pace or settles into the slower growth seen since 2022.
When the math gives you a range, not a verdict.
The base case says it's too close to call. What breaks the tie is what you believe about Nashville.
Nashville has diversified its economy over the past decade, adding healthcare and technology employers alongside its traditional industries. The metro area added more than 136,000 residents between 2020 and 2024, a 6.4 percent gain driven by both domestic migration and an accelerating international influx. Those aren't the conditions that produce one-time appreciation spikes. They're the conditions that sustain it. The case for 5 to 6 percent appreciation going forward is a bet on what Nashville has become, not what it was.
But the math also can't answer whether Jordan will still want to be in Inglewood in year eight. He's 32 and single, and the decade ahead could look very different from what he expects today. A job offer in another city, a relationship that changes where he wants to live, a pull back toward family. Any of these could rewrite the timeline. In Nashville, the life question and the financial question are tangled together in a way they aren't in every market, because the financial answer depends so directly on how long he stays.
The math isn't pushing him toward the door. At this price point, both paths work. The question is which one fits the decade he's actually planning to live.
Run your own numbers →