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Is Carrying This Card Balance for the Rewards Worth It?

A card balance earning rewards feels different from a card balance costing interest, even when the same dollars are involved. This tool puts both on the same footing: the real interest cost of carrying it against what that cash would earn parked in a high-yield savings account, netted against the rewards value you actually get.

Quick answer: Is carrying this balance for the rewards actually worth it? Compares the real interest cost of carrying it against what that cash would earn parked in a high-yield savings account, netted against the rewards value you enter. Enter Card balance you’re carrying, Card APR, Monthly payment toward it, and Rewards value you’d give up to personalize the estimate. It returns Net annual impact of paying off, Interest if carried, and HYSA yield on this balance so you can compare the impact before choosing a next step. Use it to compare payment, APR, total cost, credit impact, and lender or card tradeoffs.

Your decision

Pay it off and keep that cash earning interest. The signed annual difference is about $386/yr in favor of paying off (negative favors carrying).

Recommended: Pay off the balance, keep the cash earning interest

Net annual impact of paying off

Watch

$386

favors paying off

Interest avoided minus HYSA yield on the balance minus the rewards value you entered.

Interest if carried

Watch

$762

next 12 months

Real month-by-month amortization at your entered APR and payment, not a flat balance-times-rate estimate.

HYSA yield on this balance

Good

$176

if parked instead

What this balance would earn over 12 months sitting in a high-yield savings account.

Rewards value entered

$200

per year

Your own estimate of what you would give up — cashback paid out, points redeemed, etc.

Ranked options

#1Pay off the balance, keep the cash earning interest
Interest avoided ($762/yr) minus the HYSA yield and rewards you'd give up nets to about $386/yr in your favor.
$386/yr
Confidence: HighEffort: MediumRisk: Low
#2Keep carrying it for the rewards
The HYSA yield on this balance plus the rewards value you entered currently outweighs the interest cost by about $-386/yr.
Confidence: MediumEffort: LowRisk: Medium
#3Run the balance-transfer break-even calculator instead
The numbers are close enough that a 0% balance-transfer offer could tip this either way — that calculator models transfer fees and promo terms directly.
Confidence: MediumEffort: LowRisk: Low

Watch-outs

• This assumes the cash you would use to pay off the balance would otherwise sit in savings, not be spent on something else. If you do not actually have that cash available, paying off is not a real option right now — this is only a comparison of costs.

Assumptions used

Card balance: $4,000
Card APR: 21.50%
Monthly payment: $150
Rewards value: $200
HYSA APY: 4.40%

Estimates based on your assumptions above — roughly indicative, not financial, tax, or legal advice.

Next steps

Compare high-yield savings rates →

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Why this matters

Most credit card calculators only look at interest. Most rewards calculators only look at what you earn. Neither one tells you whether carrying a balance specifically to keep earning rewards is actually the better move once you account for what that same cash could be doing in a savings account instead. This calculator crosses both, using a real declining-balance amortization for the interest side, not a flat balance-times-rate shortcut.

Frequently asked questions

Why does this assume I could pay off the balance?

The comparison only makes sense if the cash to pay it off actually exists — this tool assumes that cash would otherwise sit in a high-yield savings account, not be spent on something else. If you do not have that cash available right now, paying off is not a real option yet; treat the result as a comparison of costs, not a directive to act today.

Why not just multiply my balance by my APR?

That overstates the real cost if you are making any payments at all, since interest only accrues on the balance that is actually still outstanding each month. This tool runs a real month-by-month amortization instead — the same underlying math the site's dedicated credit card interest calculator uses.

What if the numbers are close either way?

When the gap is small, this tool points you to the balance-transfer break-even calculator instead of guessing — a 0% transfer offer can tip a close call either direction, and that calculator is built specifically to model transfer fees and promo terms.

Where does the rewards value come from?

You enter it directly — your own honest estimate of the cashback paid out or points redeemed you would give up. This tool does not model your spending categories or estimate rewards for you, since that varies too much card to card to guess responsibly.

This tool produces estimates based on the assumptions you enter. It is not financial, tax, or legal advice. Actual rates, fees, and outcomes depend on your lender, account terms, and approval.