Rent vs Buy at 6.43% Rates: Raleigh's $420K Price-to-Rent Ratio vs Miami's $619K After the July Rate Drop
You're comparing two job offers. One's in Raleigh, where a decent 3BR runs $420,000. The other's in Miami, where the same-sized house is $619,000. Rates just dropped to 6.43% — the biggest weekly decline since late April, according to Realtor.com's July 2 rate report — so buying suddenly feels more within reach in both cities. But "more within reach" and "the math actually works" are two different questions, and in these two metros, they land on opposite answers.
This isn't a coincidence. It's a pattern playing out across the country right now, and it comes down to one number most buyers never calculate: the price-to-rent ratio, filtered through local taxes, insurance, and how fast the local market is actually building new supply.
Why the Same Rate Drop Means Different Things in Different Cities
A recent HousingWire piece made an argument worth sitting with: the "American Dream is dead" narrative isn't really about homeownership disappearing — it's about homeownership migrating to the places that still build. Metros that keep adding housing supply (much of the Sunbelt, including Raleigh) keep price growth in check relative to income. Metros that are supply-constrained (much of coastal Florida, including Miami) see prices and insurance costs climb faster than wages, which quietly breaks the rent-vs-buy math even when mortgage rates fall.
That's exactly what shows up when you run the numbers.
The Mortgage Math: Raleigh's $420K vs Miami's $619K at 6.43%
Both loans assume 20% down, 30-year fixed, 6.43%.
| Raleigh ($420K) | Miami ($619K) | |
|---|---|---|
| Down payment (20%) | $84,000 | $123,800 |
| Loan amount | $336,000 | $495,200 |
| Monthly P&I | $2,109 | $3,108 |
| Property tax (monthly) | $297 | $526 |
| Homeowners insurance | $150 | $400 |
| Maintenance (1%/yr) | $350 | $516 |
| HOA (est.) | $0 | $150 |
| True monthly cost | $2,906 | $4,700 |
| Typical 3BR rent | $1,900 | $3,200 |
Notice the insurance line. Florida's carrier crisis isn't hypothetical — it's baked into that $400/month figure, and it's a big part of why Miami's true cost outpaces Raleigh's by more than the price difference alone would suggest. We've broken down this exact insurance drag in the true cost of a South Florida home and in Southwest Florida's condo insurance and HOA math if you want the deeper breakdown.
This is the kind of analysis Torvani runs for you automatically, pulling in local tax rates and insurance estimates instead of making you guess.
Price-to-Rent Ratio: The Number That Actually Predicts the Verdict
Price-to-rent ratio (home price ÷ annual rent) is the fastest gut-check for whether a market favors buying or renting. Under 15 typically favors buying, 15-20 is a toss-up, over 20 tends to favor renting.
- Raleigh: $420,000 ÷ ($1,900 × 12) = 18.4 — toss-up, leaning rent
- Miami: $619,000 ÷ ($3,200 × 12) = 16.1 — toss-up, leaning buy
On the ratio alone, Miami actually looks more buy-friendly than Raleigh. This is the trap. Price-to-rent tells you about the price side of the equation but says nothing about carrying costs — and Miami's tax-plus-insurance load is nearly double Raleigh's in dollar terms. That's why you can't stop at the ratio. You have to run the full 10-year cash flow.
The 10-Year Owner vs. Renter Comparison
Here's where it gets specific. For each city, we compare two people: one buys, one rents the same home and invests the down payment plus the monthly cash difference in the S&P 500 at a conservative 7% average annual return.
Raleigh, 10-year horizon:
- True monthly cost of owning minus rent: $2,906 − ~$2,150 interest-plus-costs comparison ≈ $697/month more to own on a pure cash basis (this isolates interest, tax, insurance, and maintenance — not principal, which builds equity)
- Cumulative extra cash cost over 10 years: ~$83,640
- Buying + selling transaction costs (roughly 9% of price): ~$37,800
- Principal paid down over 10 years: ~$51,600
- Home value at 3.5% annual appreciation: ~$592,200 (Raleigh's "still building" status keeps appreciation moderate rather than explosive)
- Owner's net equity position after 10 years: ~$307,800
- Renter's invested portfolio after 10 years: ~$285,865
Raleigh verdict: buying wins by about $21,900 over 10 years — a thin but real edge, and one that depends heavily on rent and appreciation staying near these assumptions.
Miami, 10-year horizon:
- Extra monthly cash cost to own vs. rent: ~$1,046/month
- Cumulative extra cash cost over 10 years: ~$125,520
- Transaction costs (9% of $619K): ~$55,710
- Principal paid down over 10 years: ~$76,060
- Home value at 3% annual appreciation (slower, due to insurance drag and climate-risk repricing): ~$831,900
- Owner's net equity position after 10 years: ~$412,760
- Renter's invested portfolio after 10 years: ~$424,635
Miami verdict: renting wins by about $11,875 over 10 years — driven almost entirely by that insurance and tax load eating into what would otherwise be a favorable price-to-rent ratio.
Same rate. Same 20% down. Same 10-year horizon. Opposite winners. That's the whole point — you can model this for your specific city and price point at Torvani instead of trusting a national average that doesn't apply to either of these markets.
What the Rate Drop Actually Buys You
The move from roughly 6.7% to 6.43% isn't nothing. On Raleigh's $336,000 loan, that's about $58 less in monthly interest — roughly $7,000 in cash savings over 10 years. That's meaningful, but it's not enough to flip Miami's verdict, and it only widens Raleigh's already-thin edge by about a third. Rate drops help the math on the margin; they don't override what taxes and insurance are already doing to the monthly number. We walked through a similar rate-sensitivity scenario in the spring 2026 breakeven analysis for thin-inventory markets, and the conclusion holds here too: rate moves shift breakeven by months, not years, once you're already 6-9 years out.
The Wildcard: Florida's Property Tax Deadline
There's a live variable in the Miami math worth flagging. Florida Governor DeSantis is pushing a ballot proposal that would offer property tax relief to homeowners who purchase before January 1. If that passes, it could meaningfully shrink Miami's $526/month tax line for anyone who buys before the deadline — which would push the 10-year verdict closer to breakeven, maybe even flip it. If it doesn't pass, Miami's tax drag stays exactly where it is. This is precisely the kind of local policy variable that a generic rent-vs-buy calculator will never catch, and it's why timing your purchase around a specific deadline matters more in Florida right now than almost anywhere else.
Why This Doesn't Apply to Every Buyer
Not every Miami buyer is running this math. Manhattan's luxury market just posted a 25% jump in $20 million-plus contract signings despite a new tax on second homes — because that segment of buyers isn't financing anything and isn't sensitive to a 27-basis-point rate move. If you're paying cash, the entire framework above (interest cost, PMI, breakeven against rent) doesn't apply to you. This analysis is built for the median buyer financing 80% of a $400K-$650K home, which is where the vast majority of actual rent-vs-buy decisions get made.
There's also a supply-side story worth a nod: among this year's most-read reverse mortgage coverage, a recurring theme was senior homeowners tapping equity or selling outright, often in exactly the "still building" metros that keep adding housing stock. More sellers plus more new construction is part of why Raleigh's price growth stays moderate enough for the buy math to work at all — constrained markets like Miami don't get that release valve.
Run Your Own Numbers Before You Decide
If you're comparing Raleigh to Miami, or any two cities with different tax rates, insurance costs, and rent levels, the national headline about a rate drop tells you almost nothing useful. What matters is your specific price point, your down payment, your city's insurance and tax load, and how long you actually plan to stay. For deeper dives on nearby comparisons, see how Raleigh's breakeven stretches to 9+ years under slightly different rate assumptions, how Miami's $619K median hits middle-income buyers, or how Denver, Charlotte, and Austin stack up against each other at similar rate levels.
The verdict isn't "buy" or "rent" as a national rule. It's whichever number wins once you plug in your actual city, your actual price, and your actual timeline — and that's exactly the calculation Torvani is built to run for you.
Sources
- Mortgage Rates Post Biggest Drop in 2 Months in Independence Day Boost for Buyers — Realtor.com News
- The American Dream is not dead, it moved to markets that still build — HousingWire
- The top 5 reverse mortgage stories from the first half of 2026 — HousingWire
- Manhattan Luxury Market Booms Despite Mayor Mamdani’s New Tax on Second Homes — Realtor.com News
- Key New Year’s Tax Deadline May Loom for Florida—Will It Sway More Out-of-State Buyers? — Realtor.com News