Top Compound Interest Mistakes to Avoid
Compounding can build wealth fast, but bad assumptions can create unrealistic expectations.
Mistake 1: return rate too optimistic
Using 15% every year may overstate results. Model multiple scenarios (conservative/base/aggressive).
Mistake 2: ignoring contribution gaps
Missing monthly contributions hurts long-term growth more than most people realize.
Mistake 3: forgetting inflation
Nominal returns are not purchasing power. Adjust targets for inflation over long periods.
Run your numbers
Use our Compound Interest Calculator with monthly contributions and alternate rate scenarios.