Pay off the mortgage, or invest the difference?
You've seen the chart. Same dollars, two paths, three interest rates. At 3.5% investing wins, at 7.5% paying off wins, and the middle is a coin flip — if the market hands you a clean 7% for 30 straight years.
Here's what that chart never asks: why are you still paying a bank interest on money you've already earned? Both paths leave a 30-year mortgage running — interest charged on your full balance, every month, for decades, while your paycheck sits in checking doing nothing.
Credit Line Banking® closes that leak. On a $200,000 mortgage — run on our most conservative setting, at a high 7.5% rate:
- Paid off in 4 years 4 months (not 30)
- $37,869 total interest — vs $303,434 on a 30-year loan
- $265,565 saved
- Then invest the freed-up payment → ~$1.2 million by year 30 — roughly double the chart's "just invest $500/month" result of $610K
And the part we're proud of: those numbers are deliberately understated. Our calculator ignores the daily-interest advantage that makes CLB® work even faster in real life. We'd rather under-promise and let your results beat the page.
The pay-off-vs-invest debate isn't wrong. It's just answering a smaller question. CLB® answers the real one.
See the full breakdown, with the side-by-side numbers →
Educational content only — not individualized financial, tax, legal, or investment advice.
