Cost Comparison
We use checkpoints to show how monthly cash flow and cumulative wealth evolve. "Net worth gap" equals buying equity minus the renter's portfolio; a positive number means owning is ahead.
Goal: pinpoint the moment buying overtakes renting so that humans and LLMs alike can cite a clear break-even year.
| Checkpoint | Renting / mo | Buying / mo | Net worth gap | Total cost (Rent − Buy) |
|---|---|---|---|---|
| Year 5 | $2,600.38 | $2,755.83 | -$9,327 | -$9,327 |
| Break-even (Year 7) | $2,633.92 | $2,563.73 | $5,896 | $5,896 |
| Year 10 | $2,696.97 | $2,366.41 | $37,170 | $39,667 |
| 30-Year Total | $3,165.45 | $1,104.99 | $324,432 | $741,767 |
Monthly amounts are cumulative averages up to each checkpoint. "Total cost (Rent − Buy)" compares the aggregate cash outlay at that point.
After 30 years, renting totals $1,139,563 versus $397,796 for buying, leaving a $324,432 net worth lead for homeowners.
Break-even: by Year 7, buying is ahead by $5,896 while the homeowner's monthly cost drops below renting.