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30-yr avg 7.40% · Freddie Mac · Oct 8

Rent vs. Buy Calculator for Oklahoma

Checked against OTC, OHFA, HUD and Freddie Mac sources · Updated Oct 8, 2026

Data as of Oct 8, 2026

How we calculate

We don't fill this in for you: enter the rent for a place comparable to the one you'd buy.

Assumption, change me
Freddie Mac avg

Default: Freddie Mac PMMS, week of Oct 8, 2026: 7.40%.

Assumption, change me
Assumption, change me

What money not spent on housing (including the down payment) would earn.

Assumption, change me
Assumption, change me

From your Loan Estimate or the closing cost calculator.

Rent vs. buy

Enter rent

See breakdown

Rent vs. buy

Enter your monthly rent to compare.

Owning this home would cost about $2,592 in the first month, counting principal and interest ($1,558), property tax, insurance, maintenance, PMI and HOA.

Estimates for education only. Not a loan offer, not lending, tax, legal or financial advice. Rates and limits change; confirm with a licensed lender, OHFA, and your county assessor.

Key takeaways

  • The comparison counts what you'd walk away with, not just what you pay: home equity after selling costs for buyers, invested savings for renters.
  • Rent, rent growth, appreciation, investment return, maintenance and selling costs are your assumptions; change them and see how the answer moves.
  • Property tax and insurance use Oklahoma data, including the 3% yearly cap on a homestead's value increases.

How the comparison works

Both paths get the same monthly budget. Each month, whichever path is cheaper invests the difference, and the renter invests the cash the buyer would have put into the down payment and closing costs. At the end of each year the calculator asks: if you stopped here (the buyer sells, paying selling costs and the rest of the loan; the renter just stops), what did each path cost?

Net cost = cash put in − what you walk away with. The path with the lower net cost came out ahead. The break-even year is the first year buying does.

What comes from data, and what's yours

Sources of each input
InputStarting value
Interest rateFreddie Mac PMMS weekly average (data)
Property taxYour county's or Oklahoma County district's levy and assessment percentage, homestead exemption (data)
InsuranceOklahoma statewide average, $5,298 a year (data)
Value growth cap for property tax3% a year for a homestead, 5% otherwise (Okla. Const. art. 10, § 8B)
PMIMidpoint of Freddie Mac's $30–$70 per $100,000 range, ending at 78% of the original value (estimate)
RentBlank: you enter it
Rent increase, home value growth, investment return, maintenance, selling cost3%, 3%, 5%, 1% and 6%: neutral starting points labeled as assumptions, not forecasts

We don't prefill rent. Public rent benchmarks such as HUD's Fair Market Rents and the Census Bureau's American Community Survey need API accounts we haven't set up, and a county average wouldn't describe the specific place you'd rent anyway.

Reading the result

  • How long you stay matters most. Buying has large one-time costs (closing costs now, selling costs later), and the longer you stay, the more years they're spread over.
  • Try a few assumptions. Change home value growth and investment return by a point or two and watch the break-even year move.
  • Oklahoma specifics are built in: district-level property tax in Oklahoma County, the homestead exemption and 3% value cap, and the state's high average insurance, which the model grows with the home's value.

What the model leaves out

Income taxes are ignored: the mortgage interest deduction, tax on investment gains and any tax on the home sale. Renter's insurance, moving costs and the value of stability aren't counted. The first year's property tax assumes the assessor values the home at the price you pay.

The model

Budget each month = max(owner cost, rent)
Investments grow monthly at (1 + return)^(1/12) − 1 and receive budget − own cost
Buyer wealth = value × (1 − selling %) − loan balance + buyer investments
Net cost = cash in − wealth
owner cost
P&I + property tax + insurance + maintenance + PMI + HOA
value
price grown monthly at your appreciation rate
tax
on fair cash value, which grows at most the § 8B cap each year

For the full monthly payment on a specific home, use the mortgage calculator.

Data this page uses

Each data value used by this calculator, with its date and source
ValueData as ofSource
Freddie Mac 30-year fixed average7.40%Week of Oct 8, 2026Freddie Mac: Primary Mortgage Market Survey® history (CSV)
Freddie Mac 15-year fixed average6.73%Week of Oct 8, 2026Freddie Mac: Primary Mortgage Market Survey® history (CSV)
Oklahoma County levies by district code119 codes, 76 combinations (e.g. code 200: 122.90 mills)Tax year 2025, certified Nov 17, 2025Oklahoma County Assessor: Oklahoma County Tax Rates/Millages for 2025
County effective millage, 77 countiese.g. Oklahoma 119.506, Tulsa 127.479 millsTax year 2024Oklahoma Tax Commission (OTC), Ad Valorem Division: 2024 Ad Valorem Statistics
Real property assessment percentage, 77 countiese.g. Oklahoma 11.00%, Comanche 11.25%2024Oklahoma Tax Commission (OTC), Ad Valorem Division: 2024 Ad Valorem Statistics
Homestead exemption$1,000 of assessed valueCurrentOklahoma County Assessor: Homestead Exemption
Annual cap on fair cash value increases3% homestead · 5% otherCurrent (Okla. Const. art. 10, § 8B)Oklahoma Tax Commission (OTC), Ad Valorem Division: 2024 Ad Valorem Statistics
Oklahoma average homeowners insurance$5,298/yr (U.S. $2,395)Published Jun 8, 2026LendingTree: State of Home Insurance: 2026
Conventional PMI range$30–$70/mo per $100,000 (default $50, midpoint)Checked Oct 8, 2026Freddie Mac (My Home): Breaking down PMI

Questions

Why do I have to enter the rent?

Because the right number is the rent for a place like the one you'd buy, which no county average captures. We also haven't loaded HUD or Census rent data yet, since both need API accounts.

Are the appreciation and investment return predictions?

No. They're neutral starting values, labeled as assumptions. Nobody knows future returns; try several values to see how sensitive the answer is.

What does 'net cost' mean?

All the cash you put in over the period minus what you'd have at the end: for a buyer, the home's sale price after selling costs minus the remaining loan, plus any savings invested along the way; for a renter, the invested savings.

Does the model include Oklahoma's property tax cap?

Yes. Taxable fair cash value grows with the home's value but no faster than 3% a year with a homestead exemption (5% without), per Oklahoma Constitution art. 10, § 8B as summarized by the Tax Commission.

Sources

  1. Freddie Mac, Primary Mortgage Market Survey® history (CSV). www.freddiemac.com/pmms/docs/PMMS_history.csv Effective Oct 8, 2026; retrieved October 8, 2026.
  2. Oklahoma County Assessor, Oklahoma County Tax Rates/Millages for 2025. docs.oklahomacounty.org/assessorWP5/taxrates.htm Effective Nov 17, 2025; retrieved October 8, 2026.
  3. Oklahoma Tax Commission (OTC), Ad Valorem Division, 2024 Ad Valorem Statistics. oklahoma.gov/content/dam/ok/en/tax/documents/resources/publications/ad-valorem/2024StatBook.pdf Effective 2024; retrieved October 8, 2026.
  4. LendingTree, State of Home Insurance: 2026. www.lendingtree.com/insurance/state-of-home-insurance/ Effective Jun 8, 2026; retrieved October 8, 2026.
  5. Freddie Mac (My Home), Breaking down PMI. myhome.freddiemac.com/buying/breaking-down-pmi Effective Oct 8, 2026; retrieved October 8, 2026.

How this page is checked

Every number on this page links to a public source. See the methodology for formulas and data refresh dates. Last reviewed October 8, 2026.