← Guides · November 10, 2026
Why Time Horizon Decides Rent vs Buy
Most rent-versus-buy debates focus on the mortgage rate or home prices. In practice the most important input is usually simpler: how long will you live there?
Costs that hit at the start and the end
Buying a home involves closing costs when you purchase and agent fees, closing costs and moving expenses when you sell. These are lump sums, and they have to be recovered through appreciation, principal paid down, or rent you would otherwise have paid. If you leave after two or three years, there may not have been enough time for that to happen.
Costs that repeat every year
Owners pay property tax, insurance and maintenance whether or not the value rises. A common planning rule is to budget a percentage of the home’s value per year for maintenance, but the right figure depends on the age and condition of the property. Renters avoid these, though their rent can increase.
The opportunity cost of the down payment
Money used as a down payment cannot be invested elsewhere. A fair comparison counts what that money might have earned, while remembering that returns are uncertain and past performance does not guarantee anything.
How to use a break-even
A break-even year is the point where cumulative owning costs fall below cumulative renting costs. Treat it as a range, not a promise. Change the assumptions for appreciation, rent growth and investment return, and see how much the answer moves. If it flips with small changes, the decision is close and personal factors such as stability and flexibility should weigh more.
The calculator on the home page lets you enter your own numbers and see the break-even year. It is an estimate for planning, not financial advice.