Renting vs Buying at $1M Price Point: Full Math

At a $1M purchase price and today’s 6.53% mortgage rate, the monthly cost of ownership reaches roughly $6,900 before a single dollar of tax benefit — nearly $2,700 more per month than renting an equivalent property. Whether that gap closes before you move is the only question that matters financially.

The Numbers Before the Narrative

Sources: Freddie Mac PMMS (May 28, 2026); ATTOM 2025 Property Tax Analysis (April 9, 2026); IRS/OBBBA permanent provisions (2025).

The Ownership Cost Stack

Breaking down the monthly cost of owning a $1M home at current rates requires accounting for five separate streams. The mortgage principal and interest on an $800,000 loan at 6.53% over 30 years runs $5,095 per month — that figure alone exceeds the rent assumption. Add property taxes at the national effective rate of 0.90% (ATTOM’s 2025 data, released April 2026): $750 per month. Homeowners insurance on a $1M property runs approximately $200 per month at standard rates. Maintenance, budgeted conservatively at the 1% annual rule, adds another $833 per month. The total: $6,878 per month, before any tax offsets.

What the tax benefits actually recover is smaller than most buyers expect. A $150k–$500k income household filing jointly in the 32% bracket can deduct mortgage interest on up to $750,000 of acquisition debt — so on an $800,000 loan, only the interest attributable to $750,000 is deductible. At 6.53%, that’s roughly $48,975 in year one. Property taxes up to the 2026 SALT deduction cap of $40,400 are also deductible — though the $9,000 in property taxes here sits well under that limit. The combined itemized deductions of ~$57,975 exceed the 2026 joint standard deduction of ~$33,500 by $24,475, generating a net annual tax saving of approximately $7,832 at the 32% rate. That reduces effective annual ownership cost from $82,540 to about $74,708, or roughly $6,226 per month after taxes.

One important note on the tax benefit of homeownership: households with MAGI above $505,000 in 2026 face a phasedown of the SALT deduction under OBBBA — the $40,400 cap shrinks by 30 cents for every dollar of MAGI above $505,000, bottoming out at $10,000. That phasedown doesn’t affect the mortgage interest deduction, but it does reduce the overall tax benefit calculation meaningfully for the upper end of the $150k+ target range.

Sources: Freddie Mac PMMS (May 28, 2026); ATTOM 2025 Property Tax Analysis; IRS OBBBA provisions (2025–2026 tax year). Tax benefit calculated on incremental itemized deductions above joint standard deduction (~$33,500 in 2026), at 32% marginal rate. Actual tax benefit depends on full itemized deduction picture.

The Renting Cost Stack

Renting the equivalent property at $4,200 per month — a figure based on price-to-rent ratios observed in higher-cost markets where $1M homes exist in volume — generates a simpler but critically incomplete cost picture on its own. Add renter’s insurance (~$25/month), and the direct cash cost is $4,225 monthly, or $50,700 annually. That’s a $2,653-per-month gap versus after-tax owning costs.

But stopping there misses what makes the opportunity cost of the down payment the most analytically underweighted figure in most rent-vs-buy discussions. A $200,000 down payment, invested in an S&P 500 index fund at the long-run historical average of 7% annual return (stated assumption, not a guarantee), generates $14,000 in year one. That’s $1,167 per month in forgone investment income — a real cost of owning that appears nowhere in any mortgage payment table.

Adding opportunity cost, the total effective annual renting cost becomes $50,700 + $14,000 = $64,700 per year, or $5,392 per month. The gap between renting and after-tax owning narrows from $2,653 to $834 per month — but renting still has the lower immediate annual cost by approximately $10,008 in year one.

Finluxy Buy-Rent Break-Even Horizon

The Finluxy Buy-Rent Break-Even Horizon answers the only question that should drive this decision: how many years does it take for the cumulative cost of buying to fall below the cumulative cost of renting the equivalent property, including opportunity costs and transaction costs at sale? Three scenarios bracket the realistic range.

Finluxy proprietary metric. Assumptions: $1M purchase price, 20% down payment ($200,000), $800k loan at 6.53% (Freddie Mac PMMS, May 28, 2026), transaction costs at sale of 6% (Redfin / standard industry estimate), buyer closing costs of 3% at purchase (~$30,000). Break-even defined as the year when cumulative buying costs (net of tax benefits) equal cumulative renting costs (including opportunity cost of down payment at stated investment return). Scale: <5 years = strong buy; 8–12 years = market-dependent; 15+ = renting likely better. Figures are estimates based on stated assumptions and simplified annual compounding.

The base case of 10 years sits squarely in the “market-dependent” zone. That means the decision turns on time horizon more than on conviction about markets. A buyer who knows they will stay 12-plus years in the base scenario leans toward buying. Anyone with a 5-to-7-year horizon in the base case almost certainly comes out behind on a pure cost basis.

The bull case — where home values compound at 5% and the stock market delivers only 5% — produces a 6-to-7-year break-even, which starts to resemble genuine financial value in buying. NAR data through Q1 2026 shows prices up 0.5% year-over-year nationally at the median, and up in 71% of metro areas. That’s not a 5% environment nationally, though some high-demand coastal and Sun Belt markets still outperform. The bull case is not implausible; it is, however, the optimistic one.

The bear case — with 9% investment returns (aggressive but historical during strong equity periods), 1% home appreciation, and 4% rent growth — produces an 18-to-20-year break-even. At that horizon, buying at the $1M price point is a lifestyle choice, not a financial one. For readers interested in how interest rate changes shift the break-even math, even a 100-basis-point reduction in the mortgage rate compresses the base case by roughly 1.5–2 years.

Transaction Costs: The Hidden Anchor

Every break-even calculation at the $1M price point is dominated by transaction costs on both ends. Buyer closing costs — covering origination fees, title insurance, appraisal, prepaid taxes and insurance — typically run 2%–5% of the purchase price, per Redfin’s current guidance. At 3% on a $1M home, that’s $30,000 out of pocket at close. Those dollars never return.

Seller-side costs are larger. The standard commission-plus-closing-cost stack has historically run around 6% of sale price. On a $1M home appreciating at 3% over 10 years (to approximately $1,344,000), seller transaction costs approach $80,640 — money that comes directly off the equity gain. This is why buyers with a short time horizon rarely recover their transaction costs, regardless of how well the market performs. At 3% appreciation, a 3-year hold produces a gross gain of about $90,000 on the home. After $80,640 in seller costs and $30,000 in buyer closing costs paid upfront, the owner has effectively lost money relative to renting and investing the down payment.

This is the figure most coverage overlooks: at the $1M price point, you need home appreciation to cover not just the higher monthly cost of owning versus renting, but also an aggregate transaction cost load of 8%–9% of purchase price across the buy-sell cycle. That’s $80,000–$90,000 that must be earned back before a single dollar of “winning” on the decision exists. Zillow’s May 2026 market data shows single-family asking rents growing at just 2.5% annually — meaning the renting cost escalator is slower than the historical model assumes, which actually tilts the base case slightly in favor of renting over shorter horizons.

What the SALT Change Actually Does to the Math

The homeownership tax benefit calculus changed materially in 2025. The OBBBA raised the SALT deduction cap from $10,000 to $40,000 for tax year 2025 and $40,400 for 2026 — a shift that primarily benefits owners in high-property-tax states. A $1M home in Illinois (effective rate 1.84% per ATTOM 2025) generates $18,400 in annual property taxes; under the old $10,000 cap, $8,400 was non-deductible. Under 2026 rules, the full $18,400 is deductible — adding roughly $2,688 in annual tax savings at the 32% rate for that Illinois buyer versus what was available under TCJA.

For the $150k+ household in a moderate-property-tax state like Texas or Georgia, where effective rates run 1.0%–1.2% on a $1M home, the SALT change matters less because property taxes were already closer to the old cap. The mortgage interest deduction remains capped at $750,000 of acquisition debt — permanent under OBBBA — which means the first $50,000 of this $800,000 loan generates no deductible interest. At 6.53%, that costs approximately $3,265 in lost deductions, or about $1,045 in annual after-tax value at the 32% rate.

For households earning above $505,000 MAGI in 2026, the SALT phasedown under OBBBA applies: the cap shrinks by 30% of income above $505,000, reaching the floor of $10,000 around $600,000 MAGI. A family earning $600,000 gets essentially the same $10,000 cap as under TCJA — the OBBBA expansion is largely irrelevant to them for property tax purposes. This is a meaningful caveat for the upper tier of the $150k+ audience, and it’s rarely acknowledged in buy-vs-rent analyses published in 2026.

Market Variation: Why the National Model Needs Context

A national 10-year base case break-even does not apply uniformly. The same $1M purchase price represents a different home — and carries a different rent ratio — in Austin than in San Francisco. In Austin, where the median home hit elevated levels post-2020 and the post-surge price correction meaningfully changed the calculus, a $1M purchase now represents a genuinely premium property in an increasingly competitive rental market. The price-to-rent ratio may favor buying more than the national model suggests.

San Francisco is structurally different. The Cluster Brief’s reference example — a $1.4M SF condo with $5,200/month equivalent rent — implies a break-even of 14.2 years in the base case, consistent with the city’s historically extreme price-to-rent ratio. For a San Francisco buy-vs-rent analysis, the rent-versus-buy decision is nearly always resolved by time horizon and rent control, not by financial modeling alone.

In Chicago, ATTOM’s effective property tax rate for Cook County exceeds 1.8%, which pushes the $1M ownership cost stack to roughly $7,300 per month before tax benefits — widening the gap and extending the Chicago break-even timeline relative to the national model. Miami and New York present their own dynamics, shaped by insurance cost acceleration (Miami) and transfer taxes (New York). NYC’s break-even math includes mansion taxes above $1M and mortgage recording taxes — costs the national model deliberately excludes.

The Overlooked Data Point

Most buy-vs-rent coverage focuses on the monthly payment gap. What it systematically misses: the loan-to-deductible-debt mismatch at this price point. An $800,000 loan on a $1M home exceeds the $750,000 mortgage interest deduction ceiling by $50,000. That $50,000 in non-deductible principal carries interest of roughly $3,265 per year at 6.53% — a permanent, invisible tax on buying at this price tier that doesn’t exist at sub-$938,000 loan amounts. For buyers who stretch to $1.1M or $1.2M with 20% down, the non-deductible loan balance grows, amplifying this drag. At a $1.5M purchase with 20% down ($300k), the $1.2M loan has $450,000 in non-deductible acquisition debt — generating approximately $29,385 in annual interest that generates zero tax benefit. That’s $9,403 in lost annual tax value at the 32% rate, year after year, for as long as the loan exceeds $750,000.

The $150k+ Household Decision Framework

At this income level and price point, the financial case for buying only works cleanly under specific conditions: a planned holding period of 10-plus years in the base scenario, or 6-plus years if you believe in stronger-than-average home appreciation. If either of those conditions is uncertain, the opportunity cost of deploying $200,000 — plus $30,000 in closing costs — into an illiquid asset with an 8–9% transaction cost burden is genuinely hard to justify on numbers alone.

The $150k household earning toward the lower end of that range faces another constraint: at $150k income, the mortgage payment of $5,095 alone consumes approximately 41% of gross monthly income ($12,500/month gross), which exceeds conventional debt-to-income underwriting thresholds of 36%–43%. You can clear underwriting, but the budget headroom for the 1% maintenance reserve and any unexpected repairs is thin. The analysis looks different for a $300k household, where the same payment represents 20% of gross income and the opportunity cost calculation on the down payment becomes less acute relative to cashflow.

For the household weighing whether renting luxury makes more sense, the data suggest a clear framework: if the plan is 5 years or fewer, rent and invest the down payment. If the plan is 10-plus years in the same location, the base case narrowly favors buying — but transaction costs mean the margin is smaller than home equity statements make it appear. Between 6 and 10 years, the decision is genuinely market-specific and depends heavily on local appreciation trends, rent growth, and the investment alternatives available to that household. The rate sensitivity analysis for Miami illustrates how quickly a 50–100 basis point rate decline can shift that 6-to-10-year zone toward buying. At 5.5%, the base case break-even compresses to approximately 7–8 years — a material difference for anyone planning a medium-term stay.