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 | $2,150.67 | $2,081.69 | $4,139 | $4,139 |
| Year 10 | $2,023.80 | $1,475.66 | $65,777 | $65,777 |
| 15-Year Total | $1,890.51 | $940.43 | $171,015 | $171,015 |
Monthly amounts are cumulative averages up to each checkpoint. "Total cost (Rent − Buy)" compares the aggregate cash outlay at that point.
After 15 years, renting totals $340,291 versus $169,277 for buying, leaving a $171,015 net worth lead for homeowners.
Break-even: by Year 5, buying is ahead by $4,139 while the homeowner's monthly cost drops below renting.