Pay off debt or save first? Run the numbers
"Should I pay off debt or save?" is one of the most common money questions, and the honest answer is that it depends on your numbers. The good news is that the decision follows a few clear rules.
Rule 1: Build a small cushion first
Before paying extra on any debt, set aside about $1,000. Without it, the next car repair or medical bill goes right back on a credit card, and you lose the progress you made.
Rule 2: Compare interest rates
Paying off debt is like earning a guaranteed return equal to its interest rate. A high-yield savings account might pay a few percent. A credit card often charges more than 20 percent. That means:
- High-rate debt (credit cards, store cards, payday loans): pay it down before saving more.
- Low-rate debt (many car loans, some student loans): it's closer, and building savings alongside it can make sense.
Rule 3: Avalanche or snowball, pick the one you'll stick with
The avalanche method pays the highest interest rate first and saves the most money. The snowball method pays the smallest balance first, so you clear whole debts sooner and stay motivated. The difference is often smaller than people expect, so motivation can be worth it.
Rule 4: Roll payments forward
When one debt is paid off, add its whole payment to the next one. This rolling payment is what makes both methods speed up over time.
Rule 5: Don't forget the employer match
If your job matches retirement contributions, contributing enough to get the full match is usually worth it even while paying down debt. A 50 percent match beats almost any interest rate.
See both plans side by side
Arun built a free plan comparison tool on Leftover Planner. Enter your extra money each month, your savings and your debts, and it runs two plans month by month: debt-first versus save-first, or avalanche versus snowball. It shows your debt-free date, interest paid, savings and net worth for each, plus milestones, and you can save the comparison as a PDF.
This article is for education only and isn't financial advice. For big decisions, talk to a licensed financial professional.