Home Affordability SimulatorBuy the house without giving up early retirement

Can you buy a house and still retire at 55?

Yes — but the house you can afford at a 55 retirement is not the house you can afford at a 65 one, and almost nothing in the standard home-buying toolkit will tell you the difference. A lender qualifies you on today's income; the payment doesn't care when you plan to stop earning it. The retirement date changes the other side of the ledger: fewer earning years to finish funding the portfolio, more retired years for it to carry, and less time for the market to recover from a badly timed crash. To put numbers on it, here is the planner's default household — age 35, $220,000 of household income, buying a $650K home — with exactly one input moved: the age they want work to become optional.

The price of each five years

Read the last column as a price tag on the calendar: moving the target from 65 to 55 costs this household roughly $453.2K of comfortable purchase-price headroom. The mechanism is compounding's impatience. A dollar that stays invested from 35 to 65 has decades to double and re-double; aim for 55 and you amputate the final doublings — the biggest ones — from every dollar the house swallows in down payment, interest, taxes, and upkeep. The same purchase that is a rounding error against a 65 target becomes the deciding variable against a 50 one.

How to actually have both

The encouraging result inside the sweep is that down to a 55 target the curve is a dial, not a wall: the simulation doesn't say "no house," it says this much house (≈$303.7K for this household), and the honest move is to find that ceiling before you fall in love with a listing rather than after. Push to 50 and the dial runs out — no price grades Comfortable — which is its own useful answer: at that ambition the income, savings rate, or date has to move, not just the budget. The model also credits the house's one genuine gift to early retirement: a paid-off home deletes rent from the spending your portfolio must cover, which is why the right-sized purchase can protect a FIRE date even as an oversized one wrecks it — that trade is measured here.

Two cautions before you run your own numbers. Buying near an early retirement date concentrates sequence-of-returns risk: the down payment leaves the market at exactly the moment your plan is most sensitive to the order of returns. And an early target leaves less room to recover from the futures where things go wrong, so the forced-sale guardrail binds sooner. Both are dials in the model, not footnotes. Run this household at a 55 target and then make it yours — your income, your savings, your date — and read off the price that keeps the retirement you're actually planning.

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