Debt Snowball Vs Avalanche: The Comparison Nobody Runs
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A Shrinking Number Is Not A Reward: Debt Snowball Vs Avalanche, Decided Honestly

by Addison Mitchell
8 min read
debt-avalanche-method-mteam

Oonagh Trant began the avalanche in January and stopped in May. She had done it right: minimums everywhere, every spare pound at the card charging twenty-two percent, a spreadsheet updated on Sundays.

By May the balance was down about a fifth and nothing else about her life had visibly changed. She moved the spare money to the smallest debt instead, cleared it in six weeks, and felt better than she had all year.

The avalanche is the cheaper route and the quietest one. Ordering by rate usually puts the largest debt first, which means a year or more of correct behaviour with nothing to look at but a number falling slowly.

Being right and finishing are different things

The arithmetic case for the avalanche is not disputed and is not the point. A method that saves four hundred in interest and gets abandoned in month five saves nothing. The comparison that matters is between a schedule you finish and one you do not.

Oonagh had not failed at discipline. Five months is longer than most attempts last, and she stopped for an entirely rational reason: nothing had happened. Five months of correct behaviour had produced no event. Keeping the order and adding something visible took about fifteen minutes.

22%
the rate on the debt she started with
5 months
before she abandoned the method
0
visible events in that time

The fifteen minutes that made it survivable

Balances, rates, and the amount genuinely spare each week – less than she had been putting in during the keen months and more than by May.

a payoff order with a small weekly amount set aside

What came back · in about fifteen minutes

1 · The rate order, with what it saves

which debt first and what the ordering is worth against the alternative. Seeing the figure made it easier to stay with, and it was smaller than she had assumed.

2 · A small amount kept out of the debt

a few pounds a week going somewhere other than the balance. Mathematically this costs a little. It is the reason the other fifty weeks happen.

3 · A schedule with dates on it

when each debt clears at her real spare amount rather than her optimistic one. The first date was further out than she wanted and closer than she had feared.

4 · A weekly log, on paper

two lines a week. It sounds trivial and it is the only visible thing in a method that otherwise produces nothing to see for a year.

She returned to the rate order in July and is still on it. What she points at is not the schedule but the small amount that stopped the method being wholly invisible.

The payoff ladder, rung by rung

Rung 1 · List every debt with its rate – not its balance. The rate decides the order and the balance decides how long it feels, and confusing the two is how people pick the wrong method for the wrong reason.

Rung 2 · Find out what the ordering is actually worth – sometimes it is hundreds and sometimes it is thirty. If the gap between the two methods is small, the one you will finish is simply the better one, and knowing that removes the guilt.

Rung 3 · Keep something small outside the debt – a few pounds a week. It is suboptimal on paper and it is the difference between twelve months of this and five, which is not a small thing to weigh against a few pounds of interest.

Rung 4 · Put dates on the schedule – a method with no dates is a direction. A method with a date for each clearance is something you can be ahead or behind on, and being behind is survivable in a way that being nowhere is not.

For Oonagh the decisive rung was the third, the one that costs money. Worth being honest about that rather than pretending the optimal and the survivable answer are the same.

Why a falling number is not a reward

Because nothing arrives. A falling debt is an absence rather than a presence, and absences do not register week to week. The snowball works precisely because clearing a small balance is an event, and events are what keep people going for a year.

The pairing attempts both: keep the ordering that costs least, and put something small where it can be seen, so the year contains more than subtraction.

✓ Use
  • Every debt listed with its interest rate
  • The saving from rate ordering worked out, not assumed
  • A small amount kept outside the debt each week
  • A date against each clearance
  • A visible weekly log
✗ Skip
  • Choosing a method before knowing what the gap is worth
  • Putting every spare pound at the debt and nothing else
  • Judging five months of correct behaviour as a failure of discipline
  • A schedule with no dates in it
  • Assuming the optimal method is the one you will finish

The order is the entire discipline: rates, what the ordering is worth, something small outside it, then dates. Most pick a method from an article and never reach the second step.

a weekly log with two lines filled in

What it costs next to the alternatives

Oonagh could have gone on switching methods, which costs nothing and had already taken half a year of restarting. Here is how the usual routes compare with working the order out once.

Approach Cost What it does about finishing
Pick a method from an article Free A rule, with no idea what it is worth for you
A spreadsheet you build yourself Free Correct arithmetic, nothing to look at for a year
Free debt advice service Free The right call for arrears or collections, and genuinely free
Debt-Friendly Investment Plan $29 The rate order, what it saves, and something visible beside it

“Is saving while in debt not just wrong?” On the arithmetic alone, at a high interest rate, yes – every pound not sent at a twenty-two percent debt costs you something, and this article is not going to pretend otherwise. The argument is that a method abandoned in month five costs more than a few pounds a week of suboptimality, and that is a judgement rather than a calculation. Two things worth saying plainly: where there are arrears, defaults or anything in collection, this is the wrong order of priorities entirely and free debt advice comes first – StepChange and Citizens Advice in the UK, and the equivalent services elsewhere. And investing carries risk including the loss of money, rates and terms differ by lender, and nothing here is financial, debt or investment advice.

Two more who kept the rate order

a man who found the gap between methods was small
★★★★★

“I had assumed the avalanche would save me a fortune and that was why I had to grit my teeth through it. The actual difference was under sixty pounds, which made choosing the one I could stick to an easy decision.”

Caolan B. · four debts, Spokane WA

a woman who kept a few pounds a week outside the debt
★★★★★

“Everything I read said put every spare penny at the balance, so that is what I did for four months. Keeping five a week somewhere visible is the only reason I am still going eleven months in.”

Eibhlin M. · eleven months in, Erie PA

If the real question is whether a cushion comes before the debt at all, the $500 Emergency Fund Roadmap deals with that order. Results vary; this is general guidance rather than financial advice.

Fifteen minutes, and the method stops running on patience alone: every debt in rate order, the figure that ordering is really worth, a date against each clearance, and something small enough to be suboptimal and visible enough to carry the other fifty weeks. The arithmetic was never the hard part.

PUT MY DEBTS IN RATE ORDER

*Individual results may vary.

FAQ

What does the debt avalanche method mean?

Pay the minimum on everything, put whatever is spare against the highest interest rate, and move to the next once it clears. Ordered by rate rather than balance, which is why it costs less on paper.

Is avalanche better than snowball?

Usually cheaper, and only if you finish it. The snowball clears small balances first, costs more in interest and produces something visible sooner. Which is better depends on whether you run out of patience before money, which is a question about you rather than arithmetic.

Why does the avalanche get abandoned?

Because the first debt can take a year to clear with nothing visible in between. The method is correct and silent, and silence is what gets abandoned. Debt-Friendly Investment Plan pairs it with something that moves.

Can you invest while clearing debt?

Frequently yes, in small amounts, and that is the purpose of the pairing rather than a concession on the maths. The point is not optimising to the last dollar – it is not spending three years with nothing to show but a shrinking number.

What if the highest rate is also the largest balance?

Then the first stretch is long and the ordering matters most, which is also when people give up. Worth saying there are situations where neither method is the right first step, including debts in collection or anything with a legal process attached.

Is this financial advice?

No. This is general educational guidance rather than financial, debt or investment advice. Rates, terms and penalties vary by lender and product, investing carries risk including loss, and no split suits everybody. Speak to a licensed adviser; in the United Kingdom free debt advice is available from StepChange and Citizens Advice.
avatar
by Addison Mitchell
With a background in advertising and PR, Addison has a sharp eye for what makes a story land and how people actually make decisions. She specializes in turning real customer experiences into articles that show readers what's possible when they find the right tool at the right time.
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