What this calculator shows you
- 4 Decision Types
- Analyze leasing vs buying, credit card balances, retirement cashouts, and uninvested bonuses.
- Regret Cost in Dollars
- See the exact dollar amount lost to suboptimal decisions.
- Years of Compounding Lost
- Understand how much time you would need to recover.
- Side-by-Side Comparison
- Visual chart comparing actual path vs optimal path.
Opportunity Cost is Real Cost
Every dollar spent is a dollar not invested. But the true cost is not just the dollar—it is all the growth that dollar would have generated. A $5,000 decision today could cost over $23,000 in 20 years.
The Four Costly Decisions
Leasing vs Buying: Perpetual payments with no equity. Credit Card Balances: 20%+ interest destroying wealth. Retirement Cashouts: Penalties, taxes, and lost decades of growth. Uninvested Bonuses: Immediate gratification vs compound growth.
Using Regret Productively
This calculator is not about dwelling on past mistakes. It is about understanding the true stakes of future decisions. When you see that carrying a $5,000 balance at 22% costs $11,000 in interest over 10 years, paying it off becomes urgent.
Questions people ask
Is leasing always worse than buying?
Not always. Leasing can make sense for business vehicles with tax deductions, or if you genuinely need a new car every 3 years. For most people, buying and holding 10+ years is more cost-effective.
What if I needed to cash out retirement for an emergency?
Sometimes there is no choice. The calculator shows the cost so you can plan to rebuild—not to create guilt. If possible, exhaust other options first: emergency fund, 401k loan, family loans.
How accurate are these projections?
They use reasonable assumptions (8% market returns, 22% credit card APR). Your actual results will vary based on market performance and specific terms. The directional impact is reliable even if exact numbers differ.
Education only, not personalized financial, tax or investment advice. Results are estimates based on the numbers you enter; real returns vary and losses happen.