Which credit card should I pay off first to help my credit score?

The one with the smallest credit limit. Utilization is balance divided by limit, so a dollar lowers the ratio by 1 divided by the limit — the balance and the APR do not enter into it. On a $7,500 limit, $100 moves utilization 1.33 percentage points; on a $12,000 limit the same $100 moves it 0.83.

Does it matter which card I pay for my overall credit utilization?

No. Overall utilization is total balance divided by total limit, so paying $1,000 to any card moves it by exactly the same amount. On $12,700 across $19,500 of limit, $1,000 takes the aggregate from 65.1% to 60.0% whichever card receives it. Only the individual card's utilization depends on your choice.

When should I pay my credit card so the lower balance is reported?

Before the statement closes, not before the due date. Issuers report the balance at statement close, so a payment made after that date still avoids interest but arrives too late to change the utilization that gets reported that month.

How much do I need to pay to get under 30% utilization?

Enough to bring the total balance to 30% of your total limit. On $19,500 of limit that is $5,850, so from a $12,700 balance it takes $6,850. There is no cliff at 30% — lower is better continuously, and the benefit does not arrive all at once at a round number.

Which card should I pay first to help my credit score?

The card with the smallest limit. Not the biggest balance, not the highest rate — and this is a different card from the one both popular methods pick. The reason is one line of arithmetic, and it is written out below.

The rule, and why it is the limit that matters

Utilization on a card is balance ÷ limit. Pay a dollar and the balance drops by one, so the ratio drops by 1 ÷ limit. That is the whole derivation. The balance is not in it. The interest rate is not in it. Only the limit is.

So a dollar aimed at a small-limit card moves that card’s utilization further than the same dollar aimed at a large-limit one, and it does so no matter which card is bigger or more expensive.

Two cards, $100

Card	Balance	Limit	Utilization	$100 moves it
Chase Sapphire	$8,500	$12,000	70.8%	0.83 pt
Discover It	$4,200	$7,500	56.0%	1.33 pt
Both	$12,700	$19,500	65.1%	—

Discover carries half the balance and a lower rate, so both snowball and avalanche have opinions about it. Utilization ignores all of that and picks it anyway, because $100 ÷ $7,500 is simply a bigger fraction than $100 ÷ $12,000.

The part almost every article gets wrong

Scale that up to $1,000 and something important appears:

$1,000 goes to	That card	Overall utilization
Chase Sapphire	70.8% → 62.5%	65.1% → 60.0%
Discover It	56.0% → 42.7%	65.1% → 60.0%

The overall figure is identical. It has to be: total balance falls by $1,000 and the total limit never moved, so 11,700 ÷ 19,500 = 60.0% either way. Which card you paid makes no difference at all to the number most people mean when they say “my utilization”.

The choice only changes the per-card figure. That matters because scoring models look at the highest individual card as well as the aggregate — but it is a smaller lever than the aggregate, and it is the only one your choice controls. Anyone telling you that picking the right card transforms your overall utilization is describing arithmetic that does not exist.

What it takes to cross the usual lines

On the $19,500 of total limit above, aggregate utilization needs the balance to come down to:

To get under	Total balance must be	So pay down
50%	$9,750	$2,950
30%	$5,850	$6,850
10%	$1,950	$10,750

There is no cliff at 30%. It is a rule of thumb that got repeated until it sounded like a threshold; lower is better continuously, and the improvement does not arrive all at once when you cross a round number.

Two timing facts worth more than the card choice

Utilization is reported when the statement closes, not when the payment is due. Pay the balance down before the statement date and the lower number is what gets reported. Pay it after the statement closes and you still avoid interest, but the high figure has already been sent. This is free and most people get it backwards.
Utilization has no memory. It is recalculated from this month’s reported balances every month, so it recovers as soon as the balance does. That is the opposite of a late payment, which sits on the file for years. It is why utilization is the fastest-moving thing you have any control over.

The honest recommendation

If the goal is a score check in the next month or two — a mortgage pre-approval, a car loan — pay the smallest-limit card, and pay it before the statement closes.
If the goal is to owe less money, pay the highest APR first. Utilization order and interest order are different questions and they usually name different cards. Do not let a score tactic cost you real interest for months.
Clearing a small card entirely is worth more than the ratio suggests, because the number of accounts carrying a balance is itself a factor. If one card is nearly clear, finishing it is often the better move.
Do not close the card afterwards. Closing removes its limit from the denominator and pushes your aggregate utilization straight back up — the exact thing you just paid to fix.

Where these numbers came from

Balances and limits are the two-card example above; the percentages are computed from them directly (8,500 ÷ 12,000 = 70.8%, and so on), rounded to one decimal. The “$100 moves it” column is 100 ÷ limit. Nothing here is looked up or estimated.

“pt” means percentage points of utilization, not credit score points. The two are not the same and nobody outside FICO and VantageScore can convert one into the other — the mapping depends on the rest of your file. Any page that tells you a $100 payment is worth a specific number of score points is guessing. This one tells you exactly how far the ratio moves, and stops there.

Forgenta ranks your own cards both ways at once: the interest order that clears the debt cheapest, and the utilization order that moves the ratio fastest, with the points-per-dollar worked out per card so you can see when the two disagree and decide on purpose.

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