LeaseLens2026-08-18
Buying does not beat renting. It beats renting eventually.
The useful question is not "is buying better?" It is "better by when, and will I still be here?"
Owning starts behind. You hand over tens of thousands of dollars at closing, and a large share of your early mortgage payments is interest rather than principal. Renting starts ahead, because you keep that cash and can invest it. The lines cross somewhere. Where they cross is the whole decision.
What crossover actually compares
The comparison is not rent against a mortgage payment. That comparison flatters buying by ignoring what a renter does with the money they did not spend.
Crossover compares two net worth paths over time:
- Renting, and investing the difference: your cash to close stays invested, and any month where renting is cheaper, that gap is invested too.
- Owning: equity from principal paid down, plus appreciation, minus the cash you put in and the costs that never come back.
The crossover year is the first year the owning path is worth more than the renting-and-investing path. Before it, renting was the better financial decision. After it, owning was.
A real one
From ZIP 20009, Adams Morgan and U Street, measured on August 18, 2026, for a matched one-bedroom at around $239,933:
- Median one-bedroom rent: $2,450 a month
- All-in cost to own: $1,858 a month
- Cash to close: $55,185
- Crossover: year 2
- Gap by year ten: $167,181, in favor of owning
Year 2 is unusually early, and the reason is visible in the numbers above: owning costs about $592 a month less than renting here. When the monthly gap is that wide and in that direction, the closing costs are recovered quickly.
That is not a general truth about DC. It is what this ZIP measured on this date. A ZIP where owning costs more per month than renting can push crossover past year seven, or never reach it at all inside a sensible horizon. This is exactly why a single national "five year rule" is not worth much.
How to use it
Compare the crossover year to how long you actually expect to stay.
- Leaving before crossover? Renting was the better call, and the transaction costs of buying and selling inside a short window usually make it worse than this comparison already shows.
- Staying well past it? The gap compounds. In the example above, two years to crossover becomes a $167,181 difference by year ten.
- Landing near it? Treat it as a coin flip on the money and decide on the things the model does not price: whether you want to be able to move in a year, whether you want to own the walls.
What moves the crossover year
- The monthly gap. The single biggest lever. Rent well above the all-in cost of owning pulls crossover forward hard.
- Cash to close. A larger up-front pile takes longer to earn back, pushing crossover later.
- How long you stay. This does not move the crossover year. It decides whether the crossover year matters to you.
Every LeaseLens verdict prints its own crossover year, computed from the homes the engine actually matches for your situation rather than from a market average. If the model cannot find enough comparable homes to be confident about a price, it declines to quote one rather than guessing.