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Snowball vs avalanche: Choosing a debt repayment strategy that fits your personality

Debt is stressful enough on its own. One of the biggest reasons people get stuck is that they treat all debt the same, even though it is not.

A small store account, a credit card with a high interest rate, and a personal loan all affect your finances differently. What helps is to choose a debt repayment strategy that matches both your debt and your personality.

The right system can turn something that feels overwhelming into something more structured, practical and possible.

There is no perfect way to pay off debt

Different people stay motivated in different ways, and that matters just as much as the numbers.

The two most common debt repayment strategies are the snowball method and the avalanche method. Both are smart options. The goal is not to choose the one that looks best on paper, but the one you will actually follow through on.

The snowball method: for people who need to feel progress

With the snowball method, you pay off your smallest debt first, no matter what the interest rate is.

How it works:

The avalanche method: for people who want to save the most money

With the avalanche method, you focus on the debt with the highest interest rate first.

How it works:

Here's what that actually looks like

Theory is one thing. Numbers are another. Let's walk through a real scenario.

Say you have three debts:

Debt Balance Interest rate Minimum payment
Clothing store account R3,500 18% R150/month
Credit card R22,000 21% R550/month
Personal loan R32,000 15% R750/month
Total R57,500 R1,450/month

These are typical rates you would find in South Africa right now. Credit card rates sit close to the NCR cap of around 21%, store accounts usually charge around 18%, and personal loans vary based on your credit profile.

Now say you find an extra R1,000 per month to put towards debt. That brings your total monthly payment to R2,450. Here's what happens with each method:

Snowball: smallest balance first
Month What happens
Month 4 Store account (R3,500) is paid off. That's your first win — only 4 months in.
Month 18 Credit card (R22,000) is paid off. The payment that was going to the store account has been rolling into this one since month 5.
Month 29 Personal loan (R32,000) is paid off. You're debt-free.
Total Total interest paid: R12,594
Avalanche: highest interest first
Month What happens
Month 17 Credit card (R22,000) is paid off. You've been chipping away at the most expensive debt first, but it took 17 months to clear it.
Month 18 Store account (R3,500) is paid off. With the freed-up payments, this goes quickly.
Month 29 Personal loan (R32,000) is paid off. You're debt-free.
Total Total interest paid: R12,466

The real difference

In this use case, both methods get you debt-free in 29 months, and the total interest difference is R128. That's it.

But the experience is completely different. With the snowball method, you clear your first debt in 4 months. With the avalanche method, you wait 17 months before anything disappears from the list. If you're someone who needs to see progress to stay motivated, that gap matters more than R128.

What actually makes the biggest difference

Here's the part most people miss: the method you choose matters far less than the extra payment you make.

Using the same three debts, here's what different extra amounts do (using the avalanche method — the snowball numbers are almost identical):

Extra per month Time to debt-free Total interest paid Interest saved vs. minimums only
R0 (minimums only) 5 years R29,109
R200 4 years, 1 month R22,580 R6,529
R500 3 years, 3 months R17,177 R11,932
R1,000 2 years, 5 months R12,466 R16,643

An extra R200 per month — the cost of a few takeaway meals — saves you over R6,500 in interest and nearly a full year of repayments. An extra R500 per month saves you almost R12,000 and cuts your timeline by close to two years.

The method you pick is the frame. The extra payment is the engine.

Quick comparison: snowball vs avalanche

Snowball method Avalanche method
How it works Pay off the smallest debt first, while keeping up minimum payments on the rest. Pay off the debt with the highest interest rate first, while keeping up minimum payments on the rest.
Best for People who stay motivated by quick wins. People who want to save the most money overall.
Main benefit Builds momentum and helps you feel progress early. Reduces total interest paid and is the most cost-effective option.
Possible drawback You may pay more interest over time. Progress can feel slower at the start.

So which one should you choose?

This comes down to what keeps you going:

A method that looks perfect on paper is not helpful if you abandon it after two months. A method that keeps you engaged and consistent will get you further, even if it costs you a little more in interest.

Get started today

If you want to test both approaches with your own numbers, the Wealthbit Debt Repayment tool makes it easy. You enter your debts, choose snowball or avalanche, add an extra monthly payment, and see exactly how your repayment timeline changes. No guesswork — just a clear picture of what's possible.

What this means for employers

Debt stress shows up at work — in focus, energy, productivity, attendance and overall well-being. When employers help people understand simple, realistic debt repayment strategies, they are not just sharing financial information. They are giving people support that can make a real difference, both at work and at home.

That is where the Wealthbit Financial Freedom Programme™ comes in. By giving employees practical tools, guidance and support to understand and manage their money better, employers can help reduce financial stress and give their teams a greater sense of control.

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