Tools in This Collection
Debt Payoff Calculator
Compare debt snowball vs avalanche strategies with total interest and payoff date for each
Credit Card Payoff Calculator
See how long payoff takes at different monthly payment amounts and total interest cost
Loan Amortization Calculator
Calculate monthly payments, total interest, and full amortization schedule for any loan
Investment Fee Drag Calculator
See the long-term impact of expense ratios — how a 1% fee compounds into massive losses
HYSA Rate Comparison Calculator
Compare HYSA, money market, and T-Bill after-tax yields to maximize cash savings returns
Guides & Articles
Debt Management Workflow
High-interest debt undermines every investment strategy. Paying 22% APR on a credit card while earning 7% in an index fund is mathematically equivalent to a guaranteed -15% annual return on that money. Clearing high-interest debt before investing beyond employer-matched retirement contributions is one of the highest-return moves available.
Step 1: List All Debts
The Debt Payoff Calculator handles multiple debts simultaneously. Enter each debt's balance, interest rate, and minimum payment. The calculator then shows two payoff strategies side by side: avalanche (pay highest-interest debt first — minimum cost) and snowball (pay smallest balance first — maximum psychological momentum). Avalanche typically saves hundreds to thousands more in interest; snowball keeps motivation high. Neither is universally correct — choose based on your psychology and financial situation.
Step 2: Understand What Minimum Payments Actually Cost
Credit card minimum payments are designed to maximize interest revenue, not help you pay off debt. On a $5,000 balance at 22% APR, paying only the minimum (typically 2% of balance or $25, whichever is greater) takes over 20 years and costs $8,000+ in interest — more than the original balance. The Credit Card Payoff Calculator shows exactly what any fixed monthly payment costs and when it's paid off.
Step 3: Compare Debt vs Investment Returns
The break-even interest rate for prioritizing debt payoff vs investing is roughly 6-7% — the historical real return of a diversified stock portfolio. Debt above that rate (most credit cards, some personal loans) should be paid before non-matched investing. Debt below that rate (most mortgages, some student loans) may be worth carrying while investing the difference.
Step 4: Reduce Investment Fee Drag
Investment fees compound negatively at the same rate as returns compound positively. The Investment Fee Drag Calculator shows that a 1% expense ratio difference on a $200,000 portfolio over 30 years costs over $200,000 in foregone returns. This is why low-cost index funds (0.03-0.10% expense ratios) dramatically outperform equivalent actively managed funds over time.
Frequently Asked Questions
Which is better: debt avalanche or debt snowball?
Mathematically, avalanche (highest interest first) minimizes total interest paid. Psychologically, snowball (smallest balance first) provides earlier wins that help maintain motivation. Research suggests snowball may lead to better real-world outcomes because motivation is the biggest obstacle to debt payoff. The Debt Payoff Calculator shows both strategies so you can see the dollar difference and choose accordingly.
Should I pay off debt or invest?
Always capture employer 401(k) match first — that's a 50-100% guaranteed return. Then pay off debt with interest rates above 6-7% (credit cards, high-rate personal loans) before investing further. Mortgage and student loan debt below 5% is often worth keeping while investing the difference in diversified index funds.
How much does a 1% investment fee actually cost over time?
A 1% higher expense ratio on a $100,000 portfolio over 30 years at 7% average returns costs approximately $130,000 in foregone compounded returns. The Investment Fee Drag Calculator makes this concrete. A 0.05% index fund vs a 1% actively managed fund isn't a small difference — it's a potentially life-changing wealth gap over a 30-year investment horizon.
What credit card APR is considered high?
The average US credit card APR is around 20-22%. Any rate above 7-8% exceeds expected long-term investment returns and should generally be paid off before non-matched investing. Cards above 20% are extremely high-cost debt — paying them off is equivalent to earning a guaranteed 20%+ return on that money.
Is a HYSA better than a money market account?
Both are liquid, FDIC-insured options for cash savings, and rates are currently competitive. HYSAs are bank accounts insured by FDIC. Money market accounts at banks are also FDIC-insured. Money market funds at brokerages are not FDIC-insured but often yield more. The HYSA Rate Comparison Calculator shows after-tax yields to help you compare current rates.