Rent vs Buy in Des Moines
The Verdict
Zillow's July 2026 release puts the ZHVI for the Des Moines, IA metro at $295,955 as of 2026-07-31, and the ZORI index at $1,311. Rounded for presentation, this report models a $296,000 purchase against a $1,310 monthly rent — a price-to-rent ratio of 18.8, 18th-lowest of the thirty-one metros in this tier. Appreciation is modelled at 2.3% a year, the FHFA all-transactions house price index over the year to 2026Q2 for Des Moines-West Des Moines, IA; the 5-year annualised figure is 6.2%, and the note under the appreciation stat names which one the engine was given. Run through the engine at this report's stated basis — 6.1% on a 30-year fixed, 20% down, 8% selling costs, a 7% return on the renter's portfolio and the $1,310 blended rent as the comparable — there is no month inside thirty years in which the buy path passes the rent path. At seven years the renter is ahead by $67K; at ten years, by $89K. That is an answer rather than a missing number, and it is the honest headline for this market today. Des Moines has the third-highest effective property tax rate in this tier at 1.66%, just below the top decile of the national ACS distribution, and appreciation of 2.3%. That combination is what closes the crossing off: the tax bill grows with the home value while the equity it is buying grows at 2.3%.
Break-Even Analysis
Break-even here is a month, not a rule of thumb. The engine runs both paths side by side and reports the first month in which the buyer's net worth — the projected value of the home, less the loan balance, less what it would cost to sell in that month — passes the renter's. The renter's side is the buyer's entire upfront cash invested at 7% and then fed or drained every month by the difference between the two paths' running costs, so a month in which owning costs less than renting is a month the renter's portfolio stops growing as fast. At this basis that month never arrives inside thirty years. The sweep below moves one input at a time — a single percentage point, or half a point on the rate — and none of the six produces a crossing inside thirty years. The verdict is not resting on one fragile assumption. Run instead on the 5-year annualised FHFA rate of 6.2% and a crossing appears at month 53. Hold the home value flat for thirty years and there is no crossing at all — the buy case here needs price growth, not just principal. The arithmetic is visible in the monthly figures. The buyer starts at $2,042 a month against a renter's $1,325, a $717 gap that the renter invests, and the buyer's figure keeps climbing because tax and insurance are recomputed each year on a rising value.
The Two Paths at 7 and 10 Years
The three lines in the tables below are engine output at the basis above, not illustrations. Buyer equity is the projected home value less the loan balance less the cost of selling in that year. The renter portfolio is the buyer's entire upfront cash — the $59,200 down payment plus $8,880 of closing costs, less the renter's own $3,000 move-in cost — invested at 7% and then fed or drained every month by the difference between the two paths' costs. Transaction and carrying costs are every dollar that never became equity: closing costs, interest, property tax, insurance, maintenance and the exit fee combined. At seven years that is $107K of buyer equity against $173K in the renter's portfolio, with $188K spent on costs that bought no equity at all. By ten years the two sides read $143K and $232K. The gap is $67K at seven years and $89K at ten, still widening in the renter's favour. Both tables assume the home is sold at the horizon, because a comparison that never charges the exit cost flatters the buy path by the full 8%: $27,766 at year seven in this market.
What Moves the Answer
Every row of the sensitivity table above is a re-run of the whole thirty-year simulation with one input changed and everything else held at the basis. There is no crossing month to move, so the useful measure is the seven-year gap, which currently stands at $67K in the renter's favour. A percentage point more appreciation makes it $46K to the renter; a percentage point less appreciation makes it $86K to the renter; half a point on the mortgage rate makes it $77K to the renter; a point more on the renter's return makes it $76K to the renter. Rate and appreciation move the answer through different channels, which is worth keeping separate: the rate changes the monthly payment from month one — half a point is $77 a month on this loan — while appreciation changes only the equity line and only over time. Rent growth is modelled at 3% a year and applied once a year at renewal rather than continuously, which is why a point on it moves the answer less than a point on appreciation does. The renter's 7% return is the assumption most worth arguing with: it is a nominal, pre-tax, fully-invested figure, and every point you take off it moves the answer toward buying.
The Cost Picture
At $296,000 with 20% down, the loan is $236,800 and principal and interest come to $1,435 a month at 6.1%. Adding property tax at 1.66% and insurance at 0.3% of value puts the full PITI at $1,900 in month one and $2,000 by year seven. That climb is the annual step: property tax, insurance and maintenance are recomputed at each year boundary on the projected value of the home rather than held at the price paid, so they rise with the market the equity line is riding. Over seven years the buy path pays $96,382 in interest, $36,861 in property tax, $6,662 in insurance and $11,102 in maintenance, and $27,766 to sell. That tax bill is nearly four times what Birmingham pays over the same period on a home costing $264,000 — the 1.66% rate against Birmingham’s 0.48%. The 1.66% rate is not a statutory rate: it is the ACS 2023 five-year median real-estate tax bill for Des Moines-West Des Moines, IA Metro Area — $4,195 — divided by that survey's median home value of $252,400. Across the 393 metro areas in the same ACS file the effective rate runs from 0.17% (Kahului-Wailuku, HI) to 2.64% (Rochester, NY), with a median of 0.82% and a tenth-to-ninetieth-percentile band of 0.49% to 1.69%. Des Moines sits above the median and inside the middle eighty percent.
Run Your Own Numbers
This report models exactly one scenario: the metro median home, the metro blended rent, 20% down, a 30-year fixed at 6.1%, 8% selling costs and a 7% return on the renter's portfolio. None of those will be precisely your numbers, and the report is more useful as a starting point than as a verdict. The calculator runs the same engine on whatever you give it — your actual price and rent, a different down payment, an association fee the metro median does not include, a shorter horizon, a different return assumption. The methodology article documents every formula behind the figures on this page, including how the renter's portfolio is funded month by month, how property tax steps at each year boundary, and why the exit cost is charged against the projected value at sale. Two inputs are worth changing before any of the others. The rent, because the $1,310 used here is a blended all-homes index across the whole metro and not the unit you would actually sign for. And the horizon, because there is no holding period inside thirty years at which this market's medians favour buying, so the only thing that can change the answer is a number that is yours rather than the metro's.
7-Year Scenario Comparison
10-Year Scenario Comparison
Sensitivity Analysis
Local Risk Factors
Frequently Asked Questions
- Zillow Research. ZHVI (all homes, smoothed, seasonally adjusted) and ZORI (all homes, smoothed) for the Des Moines, IA metro, July 2026 release, observation dated 2026-07-31.[zillow.com/research ↗]
- Federal Housing Finance Agency. House Price Index, all-transactions, metropolitan, Des Moines-West Des Moines, IA (CBSA 19780), through 2026Q2.[fhfa.gov ↗]
- U.S. Census Bureau. American Community Survey 5-Year Estimates 2023 (2019–2023), Des Moines-West Des Moines, IA Metro Area (CBSA 19780): median gross rent B25064, median home value B25077, median real estate taxes B25103.[census.gov ↗]
- U.S. Census Bureau. American Community Survey 5-Year Estimates 2023, effective property tax rates across all 393 metropolitan statistical areas (B25103 over B25077).[census.gov ↗]
- Federal Reserve Bank of St. Louis. FRED: 30-Year Fixed Rate Mortgage Average in the United States (MORTGAGE30US).[fred.stlouisfed.org ↗]