Rent vs buy is rarely decided correctly by comparing a monthly rent payment to a monthly mortgage payment. That comparison leaves out mortgage interest, maintenance, property taxes and the opportunity cost of a down payment, all of which change the real math.
What renting actually costs
Renting has one clear, predictable monthly cost, and none of the maintenance responsibility. What renting does not offer is any return on that money: every euro paid in rent builds no equity and produces no asset at the end of the lease. The flexibility to move without selling anything is real, and for some situations, especially short time horizons, that flexibility is worth more than any equity building.
What buying actually costs, beyond the mortgage payment
A mortgage payment is only part of the cost of owning a home. On top of it, ownership typically adds property taxes, maintenance and repairs, often estimated at 1 to 2% of the home value per year, and in many cases mandatory insurance. In the early years of a mortgage, a large share of every payment is interest, not equity, which means the equity actually built in year one or two is much smaller than the mortgage payment suggests.
There is also the down payment itself. That money, often tens of thousands of euros, stops being available for anything else the moment it goes into a home. If that same money could have earned a return elsewhere, that lost return is a real cost of buying, even though it never appears on a mortgage statement.
Why the time horizon changes the answer
Buying involves upfront costs, such as notary fees, agency fees and registration taxes, that can add up to several percent of the purchase price. Those costs are effectively sunk the moment you buy, and they only get spread thin enough to be worth it if you stay long enough. Someone planning to stay in a home for 3 years faces a very different calculation from someone planning to stay for 15, even if the monthly numbers look similar on day one.
How to actually compare the two
A fair comparison looks at the total cost of each path over the same number of years: total rent paid on one side, against total mortgage interest, taxes, maintenance and the opportunity cost of the down payment on the other, minus the equity built and the value of owning an asset at the end. Only once both sides include their full real costs does the comparison mean anything.
A concrete example
Take a 250,000 euro home purchased with a 50,000 euro down payment and a 200,000 euro mortgage at 3.5% over 25 years. In the first year alone, roughly 6,900 euros of the mortgage payments go to interest, not equity, and maintenance at 1.5% of home value adds another 3,750 euros. Add property related costs, and the true first year cost of ownership can easily exceed 12,000 euros beyond the equity actually gained. Renting an equivalent home at 1,000 euros a month costs 12,000 euros a year with no maintenance responsibility and no upfront costs, a genuinely close comparison in year one that only shifts clearly in favor of buying once enough years have passed for equity and appreciation to outweigh the upfront and ongoing costs.
The real question behind rent vs buy
Rent vs buy is not a question with one universal answer. It depends on how long you plan to stay, what mortgage rate you can secure, how much a down payment could otherwise earn, and how local rent compares to local home prices. Running the actual numbers for your own situation, rather than relying on a rule of thumb, is the only way to know which side of the comparison actually wins for you.