What Is the AZEO Method (All Zero Except One)?

By Bryce Casson, Founder · Cardocrat · Updated July 2026

The short answer: AZEO, short for all zero except one, is a utilization trick where you pay every card to a zero reported balance except one, which you let report a small balance. It produces the lowest scoring utilization, useful in the month before a big application. It is a temporary optimization, not a daily habit.

The idea is simple once you know that both your overall utilization and the number of cards reporting a balance can affect your score. This guide explains how AZEO works, when it is worth doing, and why it is a short-term move rather than something to obsess over.

How AZEO works

To run AZEO, pay each card down to zero before its statement closes so it reports a zero balance, and let a single card report a small balance, ideally in the low single digits of that limit. The result is a very low overall utilization plus only one account showing any balance at all. Because the bureaus read the balance reported at statement close, the trick is all about timing your payments, not carrying debt.

Why not let every card report zero

Oddly, showing a zero balance on every single card can cause a small score dip, because some models like to see active, responsible use. Reporting one small balance signals exactly that: you are using credit and paying it, without carrying much. That is why AZEO leaves one card with a small balance rather than zeroing out everything.

When it is worth doing

AZEO is a short-term optimization for the month or two before something that leans on your score, such as a mortgage, an auto loan, or a tough card approval. For everyday life it is unnecessary, since simply paying in full and keeping utilization modest is plenty. It builds on the mechanics in our guide to per-card versus overall utilization.

The honest caveats

AZEO changes what is reported, not what you owe. It saves no interest and builds no long-term score on its own, and because utilization has no memory, any gains fade the next cycle if balances rise again. Treat it as a dial you turn up briefly before an application, then forget about.

The bottom line

AZEO means every card reports a zero balance except one, which reports a small balance.
It targets the lowest possible reported utilization without showing zero everywhere.
Scores can dip slightly if every card reports zero, so one small balance is ideal.
It is a timing tactic for the month before an application, not a permanent rule.
You control it entirely through payment timing relative to each statement date.

Frequently asked questions

Does AZEO actually raise your credit score?

It can, modestly, by minimizing reported utilization and the number of cards showing a balance. The effect is temporary and varies from person to person.

Should I let all my cards report a zero balance?

Usually not. Leaving one card with a small reported balance tends to score slightly better than every card reporting zero.

How small should the one balance be?

A few percent of that limit is plenty. The goal is a small positive number, not a large one.