Your plan classified each of your debts by interest rate and created a payoff schedule that fits into the broader priority order. The action cards in your checklist show each debt, when to start directing extra payments toward it, and when it will be paid off. This article explains the strategy behind that ordering so you understand why the plan sequences things the way it does.
Three tiers of debt
The engine classifies every debt into one of three tiers based on how its interest rate compares to the current prime rate. The thresholds adjust automatically as market rates change, so your plan always reflects current conditions. Your action cards show which tier each of your debts falls into.
| Tier | Rate | Strategy |
|---|---|---|
| High | Well above prime | Pay off aggressively before investing beyond the employer match. These debts cost more than typical market returns, so eliminating them is your best guaranteed return. |
| Medium | Near prime | Pay off after building an emergency fund and capturing the employer match. The cost is close to expected investment returns, so reducing this debt is a solid risk-adjusted move. |
| Low | Well below prime | Continue minimum payments and invest the difference. The expected return from broad market index funds exceeds the interest cost, so your money works harder in the market. |
How to execute the payoff plan
Your action cards already show the specific order and projected payoff dates. Here is how to put the plan into practice.
Step 1 — Set up autopay on every debt
Log in to each lender and enable automatic minimum payments. This prevents late fees, protects your credit score, and ensures you never miss a payment while focusing extra cash elsewhere. Do this for all debts regardless of tier.
Step 2 — Direct extra cash to the highest-rate debt
After minimums are covered, send every available dollar to the debt with the highest interest rate. This is the avalanche method — it minimizes total interest paid over the life of all your debts. Your action card labels this debt as the first priority.
Step 3 — Roll freed payments forward
When that first debt is paid off, take its entire payment — both the minimum and the extra — and add it to the minimum you are already paying on the next highest-rate debt. Each payoff accelerates the next one because more cash is available.
Step 4 — Repeat until clear
Continue rolling payments forward through each debt in rate order. Your action checklist tracks the projected payoff dates so you can confirm you are on schedule. When all debts in the current tier are clear, the plan redirects that cash to the next priority in the waterfall — typically investing.
Avalanche vs. snowball
Your plan uses the avalanche method (highest rate first) because it minimizes total interest paid and reaches a zero-debt state sooner. The alternative is the snowball method (smallest balance first), which can feel more motivating because you eliminate entire debts quickly. Both are far better than making only minimum payments. Research from the Harvard Business Review suggests the psychological boost from small wins helps some people stay on track — so if motivation is a bigger obstacle than math, snowball is a valid choice. But if you can stay disciplined through the first payoff, the avalanche method will save you real money.
Avalanche Method
Extra payments go to the debt with the highest interest rate first, regardless of balance size.
- Mathematically optimal — minimizes total interest paid
- Results in the earliest total payoff date
- First debt may take longer to eliminate, which can feel slow early on
Snowball Method
Extra payments go to the debt with the smallest balance first, regardless of interest rate.
- Psychologically motivating — you eliminate entire debts quickly
- Each payoff frees up more cash flow, reinforcing the habit
- Costs more in total interest than the avalanche method
Low-interest debt
For debts classified as low-rate, your plan does not prioritize extra payments. Instead, it continues minimum payments and directs your extra cash toward investments where the expected return — historically 7-10% for broad market index funds — exceeds the interest cost. The debt is still factored into your FI number; the engine subtracts outstanding balances from your net worth when calculating your timeline. But it does not sacrifice higher-return opportunities to pay it off early.
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