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 | $3,047.04 | $3,692.55 | -$38,731 | -$38,731 |
| Year 10 | $3,288.04 | $3,601.68 | -$37,637 | -$37,637 |
| Break-even (Year 15) | $3,554.63 | $3,506.05 | $7,693 | $8,744 |
| 30-Year Total | $4,540.50 | $3,031.38 | $330,582 | $543,282 |
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 $1,634,579 versus $1,091,297 for buying, leaving a $330,582 net worth lead for homeowners.
Break-even: by Year 15, buying is ahead by $7,693 while the homeowner's monthly cost drops below renting.