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Aditya Kasturi | Realogics Sotheby's International Realty

Renting vs. Buying Calculator

At Eastside prices, "buying always wins" depends on your time horizon - and older homes carry more upkeep. Run your own numbers.

Eastside waterfront used for buyer planning articles.

Buying and First-Time

What this article helps you decide

> Buying beats renting on the Eastside only past a break-even horizon, and an older home's maintenance shifts the math. The deciders: your true cost of owning (including upkeep) and how many years you'll actually stay.

Work through the decision in order

What to check

Input 1 - Monthly rent for a comparable Eastside home. Input 2 - Monthly cost of owning: mortgage + property tax + insurance + HOA + a maintenance reserve (higher for older homes - see M10).

Article worksheet · browser private

Renting vs. Buying Calculator

Use the worksheet without a form. Keep your notes in this browser, then bring the live facts into a Real Estate Review if the decision still matters.

Questions about Renting vs. Buying Calculator

Clear answers first. If one question changes the deal, bring it into the review before you move money.

Q1What's the honest break-even for buying versus renting here?+

Roughly 3–5 years once you include transaction costs on both ends. Under about 4 years, renting often wins; longer usually favors buying — but the horizon, not a slogan, decides it.

Q2What costs do people forget when they say "buying always wins"?+

The maintenance reserve (higher on older homes), property tax, insurance, HOA, and the opportunity cost of the down payment. Compare full cost of owning to rent, not just mortgage to rent.

Q3Does WA having no state income tax change the math?+

At the margin, yes. No state income tax changes your overall cash-flow picture versus a high-tax state, which helps the "buy" side modestly over a long horizon. It doesn't rescue a too-short one.

Q4How does an older home shift the comparison?+

It raises the cost-of-owning input through upkeep — budget 2–3% of value versus about 1% on newer homes. Two homes at the same price can produce very different rent-versus-buy answers once honest maintenance is in the model.

Q5I have RSUs — how should down-payment opportunity cost factor in?+

If the down payment would otherwise stay invested, count that foregone return as a cost of buying. For high-W2 households this is often the swing variable — it's why the same numbers favor buying for one couple and renting one more year for another.

Q6I'm right at the break-even — what tips it?+

Your real years-in-home and whether you'd actually invest the difference if you rented. Be honest about both; the model is only as good as those two inputs.

Q7How do I pressure-test my own numbers?+

Run them against your specific timeline and cash position in a Real Estate Review before you commit to a lease renewal or an offer.

Apply the article to the live decision.

Buy now or rent one more year? Let's run it against your timeline in a Real Estate Review.

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Last updated: August 2, 2026

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