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“Renting is throwing money away” is one of the most repeated lines in personal finance, and it skips half the sum. Owners throw money away too. They just do it through interest, property tax, maintenance and the cost of buying and selling. The useful question is not whether you pay something you never get back, but which option has lower unrecoverable costs, and how long you need to stay for buying to come out ahead.
The worked example
Everything below is illustrative. Rates, taxes and transaction costs vary enormously between countries and cities.
- Home price: $400,000, with a 20% down payment of $80,000
- Mortgage: $320,000 over 30 years at 6%, about $1,919 a month
- Comparable rent: $1,800 a month, rising 3% a year
- Property tax and maintenance: 1% of the home’s value each, per year
- Home insurance: $1,500 a year
- Home value growth: 3% a year
- The down payment could otherwise earn 4% a year
- Buying costs 3% of the price; selling costs 6% of the sale price
Unrecoverable costs in year one
Principal repayments are not a cost: they turn into home equity. So we leave them out and count only money that is gone.
| Owner’s cost, year 1 | Amount |
|---|---|
| Mortgage interest | $19,093 |
| Property tax (1%) | $4,000 |
| Maintenance (1%) | $4,000 |
| Insurance | $1,500 |
| Return given up on the $80,000 | $3,200 |
| Less: home value growth (3%) | −$12,000 |
| Net cost of owning | $19,793 |
| Rent for the same year | $21,600 |
So in year one, owning is about $1,800 cheaper. That gap widens each year because rent rises while interest slowly falls. But buying started with a $12,000 bill, and selling will cost 6% of whatever the home is worth then.
The break-even year
| Year | Owning’s cumulative advantage | Buy + sell costs | Net position |
|---|---|---|---|
| 1 | $1,807 | $36,720 | −$34,913 |
| 3 | $8,490 | $38,225 | −$29,736 |
| 5 | $19,526 | $39,823 | −$20,296 |
| 7 | $35,254 | $41,517 | −$6,263 |
| 8 | $44,990 | $42,402 | +$2,588 |
| 10 | $68,454 | $44,254 | +$24,200 |
In this example, buying wins only if you stay about eight years. Move after five and you would have been around $20,000 better off renting.
What the model leaves out
No spreadsheet captures everything. Before deciding, weigh the things that do not fit in a cell:
- Flexibility. Renting makes it cheap to move for a job or a relationship. That option has real value in your late twenties and early thirties.
- Forced saving. Mortgage principal works like an automatic savings plan. Renters only match it if they actually invest the difference.
- Control. Owners can renovate, keep pets and stay put. Renters face rent rises and landlords who sell.
- Concentration. A home can be most of an owner’s net worth, tied to one city’s economy.
- Tax treatment. Some countries give owners or renters tax advantages. Check your local rules; they can shift the answer.
A short checklist before you decide
- How many years are you confident you will stay? Be honest.
- What is the break-even year with cautious assumptions?
- After the down payment, is your emergency fund still intact?
- Could you afford the payment if the rate were 2 points higher at renewal?
- If you rent, will you invest the difference automatically?
If your expected stay is comfortably past the break-even year, buying makes sense on the numbers. If it is close, renting is not a failure. It is often the cheaper option.