When Renting Is the Smarter Move at $120k Income

At a $120,000 household income, buying the median-priced U.S. home right now produces a monthly ownership premium of roughly $280 over renting — before accounting for the $37,800 in transaction costs you’ll pay when you eventually sell. The math that most buyers skip is the break-even horizon, and under current conditions, it stretches uncomfortably long.

The Numbers Most Coverage Glosses Over

Three data points define this decision right now. The 30-year fixed-rate mortgage averaged 6.53% as of May 28, 2026, according to Freddie Mac’s Primary Mortgage Market Survey — up from 6.15% at the end of 2025 and nearly a full point above early 2025 lows. The NAR-reported national median existing-home price was $417,700 in April 2026, up 0.9% year-over-year for the 34th consecutive month of gains. And the BLS shelter index rose 3.3% over the 12 months ending April 2026, meaning rents are not falling fast enough to make buying look cheap by comparison.

For a $120k household, the operative home price sits around $420,000 — roughly three-and-a-half times gross income. That’s on the outer edge of what most lenders approve, and it’s where the cost gap between owning and renting starts to matter.

Mortgage rate: Freddie Mac PMMS (freddiemac.com/pmms). Home price: NAR Existing-Home Sales Report, May 2026. Monthly figures: Finluxy model — see Methodology section.

Breaking Down the Buy-Side Costs

A $420,000 purchase with 20% down ($84,000) leaves a $336,000 loan. At 6.53%, the monthly principal and interest payment is approximately $2,129. Add property taxes — the national effective rate was 0.9% in 2025 per ATTOM’s annual property tax analysis, yielding $3,780 per year or $315 per month on a $420,000 home. Homeowner’s insurance typically runs 0.5% of value, or roughly $175 per month nationally. Maintenance at the standard 1% annual assumption adds $350 per month. That’s $2,969 per month in carrying costs before any HOA fees.

Transaction costs are where the model turns punishing. Selling a $420,000 home carries agent commissions of 5%–6% plus seller closing costs of 1%–3% (Redfin, April 2026). Using a conservative 6% total — $25,200 — plus $12,600 in closing costs produces roughly $37,800 in exit costs. That figure must be recovered through price appreciation before any real equity is built.

The rent side of the ledger: a home at $420,000 nationally rents for approximately $2,100–$2,300 per month for a comparable unit. This analysis uses $2,200, consistent with price-to-rent ratios in mid-cost markets. Renter’s insurance adds roughly $20–$25 per month. The critical additional cost is the opportunity cost of the down payment — the foregone investment return on the $84,000 not deployed elsewhere. Assuming 7% annual return, consistent with the S&P 500 long-term historical average, that’s $5,880 per year, or $490 per month. Total monthly rent-side cost: $2,715.

Property tax rate: ATTOM 2025 Property Tax Analysis (April 9, 2026). Closing cost range: Redfin (April 2026). Opportunity cost return assumption: 7% annual, S&P 500 long-term historical average. Rent estimate: mid-cost market assumption consistent with national price-to-rent ratios.

The Tax Benefit That Probably Doesn’t Exist

Here is what most homeownership tax benefit analyses get wrong for buyers at $120k income: they assume itemizing actually saves money. It often doesn’t.

In year one of a $336,000 mortgage at 6.53%, roughly $21,900 goes to interest. Property taxes add another $3,780. Total: $25,680 in the two largest itemizable homeownership deductions. The 2026 standard deduction for married filing jointly is $32,200, per IRS Rev. Proc. 2025-32. Unless this household has significant charitable contributions or other deductions on top of mortgage interest and property taxes, their itemized total falls below the standard deduction — meaning homeownership produces zero incremental federal tax benefit over renting. The state and local tax deduction cap (the SALT cap, the combined limit on state income and property tax deductions) was raised to $40,000 under the One Big Beautiful Bill Act for tax years 2025–2029, but that cap phases out entirely for incomes above $600,000 and starts phasing out above $500,000 — irrelevant at $120k, but the higher limit barely moves the needle here because the standard deduction is still the larger number for most $120k households.

This matters for the break-even calculation: without an itemized deduction benefit, there’s no tax offset to reduce the monthly ownership premium. The full $279 gap is real cost.

Finluxy Buy-Rent Break-Even Horizon

The Finluxy Buy-Rent Break-Even Horizon measures how many years must pass before the cumulative cost of buying — including all carrying costs, the opportunity cost of equity, and transaction costs at exit — equals the cumulative cost of renting an equivalent property. Three scenarios are modeled below, each with explicitly stated assumptions.

Finluxy proprietary calculation. Mortgage rate: 6.53% (Freddie Mac PMMS, May 28, 2026). Home price: $420,000. Down payment: $84,000 (20%). Transaction costs at exit: 6% commission + 3% closing costs = 9% of sale price. No itemized tax benefit assumed (standard deduction exceeds itemized total for modeled household). Investment return assumption stated per scenario. S&P 500 long-term historical average used for base case (7%).

The base case of 11.5 years falls squarely in the “market-dependent” zone. That’s not a ringing endorsement for buyers who aren’t certain they’ll stay put for at least a decade. Only the bull case — which requires home appreciation of 5% annually against a below-average 5% investment return — pushes the break-even below 8 years. The bear case, where a 9% investment return on the down payment is plausible given historical equity performance, puts the break-even beyond what most buyers realistically plan their lives around.

For comparison, the Cluster Brief’s San Francisco example — a $1.4M condo with $5,200/month equivalent rent — produced a base-case break-even of 14.2 years. At $420,000, the national median produces 11.5 years. The San Francisco analysis shows how high-cost markets extend this horizon further; the $1M price point analysis sits between the two.

What the Data Shows That Most Coverage Misses

The overlooked figure in virtually every rent-vs-buy article aimed at median earners: the mortgage interest deduction delivers no net tax value to most $120k households in 2026. With a $32,200 standard deduction for married filers (IRS Rev. Proc. 2025-32), and year-one mortgage interest of roughly $21,900 on a $336,000 loan, a buyer needs another $10,300 in additional itemizable deductions just to reach the break-even point where itemizing matches the standard deduction — let alone exceeds it. Most analyses assume a tax benefit exists and model it into the break-even. Removing that phantom benefit adds 1–2 years to the horizon under base assumptions.

The buy vs. rent analysis framework for $150k+ households does improve materially at higher income levels, where larger loan balances, higher marginal tax rates, and more total deductions above the standard deduction make itemizing worthwhile. At $120k, that math largely doesn’t hold.

Market and Horizon Sensitivity

The 11.5-year base-case horizon is a national average. Markets diverge sharply. In New York and Miami, price-to-rent ratios are significantly more stretched, extending the horizon. In the Midwest — where ATTOM’s 2025 property tax data shows effective rates as high as 1.84% in Illinois — property tax drag narrows the ownership advantage even where home prices are lower. Conversely, Austin and other markets that saw significant post-2020 appreciation pullbacks have moved closer to historical price-to-rent norms, potentially shortening the horizon for buyers entering now.

One variable that isn’t discussed enough: the friction cost of renting isn’t zero. Lease uncertainty, rent resets, and the inability to build equity are real costs that don’t appear in a spreadsheet. But those costs become relevant only after the financial case for buying is reasonably close. At a 11.5-year base-case break-even, the financial case for buying at $120k income is not close — unless you have strong conviction about staying put and home appreciation outpacing its historical average.

If you’re in a scenario with a horizon under five years, buying at current rates and prices near the national median is nearly indefensible on the numbers alone. Transaction costs alone — the 9% of sale price modeled here — require meaningful appreciation just to avoid losing money.

The $150k+ Household Perspective

Most readers here earn above $120k and may be evaluating this question for themselves or for younger family members approaching their first purchase. The $120k income scenario is a stress test for the buy case: it forces the math into the open without the cushion of a higher marginal tax rate or a larger itemized deduction stack.

At $150k+ income with a larger loan — say, $600,000–$750,000 — the mortgage interest deduction becomes material. Year-one interest on a $600,000 loan at 6.53% is roughly $39,200, well above the standard deduction threshold even before property taxes are added. The SALT cap at $40,000 (raised under the One Big Beautiful Bill Act for 2025–2029) also starts contributing meaningfully. That shifts the break-even horizon meaningfully toward buying — which is why the decision is genuinely market-dependent rather than universally pro-rent or pro-buy. The 10-city analysis at $100k income and the break-even timeline at $100k demonstrate that the picture worsens further down the income scale.

For households at exactly $120k evaluating a $420,000 purchase: the financial case for buying exists, but it requires staying for at least 10–12 years under realistic assumptions, generating no tax benefit from itemizing, and accepting the illiquidity of a large asset during that period. If those conditions don’t describe the next decade of your life, the financial logic of renting deserves serious consideration — regardless of how the cultural narrative frames homeownership.