What does Do Not Honor actually mean?

The customer's bank refused the charge without giving a specific reason. It usually reflects the issuer's fraud rules or account restrictions rather than a lack of funds, and often only the cardholder can find out the real cause by calling their bank.

Will a Do Not Honor decline go through if I try again?

Sometimes. Because 05 is often triggered by situational risk scoring, a retry hours or a day later can succeed, especially after the cardholder confirms the purchase with their bank. Keep retries limited to avoid card network reattempt fees.

Why do I get so many 05 declines as a high-risk merchant?

Issuers factor your merchant category and acquiring bank into every authorization decision. High-risk MCCs and offshore acquiring BINs get scored more harshly, so the same cards that approve at mainstream merchants can return 05 on your site.

Decline code · Soft decline

Decline code 05: Do Not Honor

The issuer declined and chose not to say why. Do Not Honor is the generic refusal issuers return when their internal rules block a transaction but no specific reason code applies, or when they deliberately withhold the reason. It is the single most common decline code in card processing.

Should you retry?

Retry is reasonable because 05 is situational, but space attempts out and cap them. Visa treats 05 as a Category 2 decline with a hard limit of 15 attempts per card per 30 days, and both Visa and Mastercard bill excessive-reattempt fees, so two or three well-timed retries beat a dozen blind ones.

Why code 05 happens

The issuer's fraud scoring model rated the transaction too risky, often because of the merchant category, transaction amount, or an unfamiliar spending pattern.
The cardholder's account has a soft restriction, such as a block on international, online, or specific-category purchases.
The issuer distrusts the acquiring BIN or region the authorization arrived from, which is common with offshore acquiring.
Velocity limits triggered, for example several purchases in quick succession across different merchants.
Some issuers return 05 in place of more specific codes like insufficient funds as a matter of policy, which muddies diagnosis.

What to do about it

Prompt the customer to contact their bank and approve the purchase, since a cardholder phone call clears a large share of 05 declines.
Retry once after a delay of at least a few hours, or on the following day; issuer risk scores are situational and the same transaction can pass later.
Compare your 05 rate by issuer BIN and by MID; concentration in one dimension tells you whether the problem is issuer trust or merchant identity.
Make sure you are sending full AVS, CVV, and where available 3DS data, because richer authorization data lowers issuer risk scores.
Offer an alternate payment method as a fallback path in the checkout rather than letting the customer abandon.

Frequently asked questions

What does Do Not Honor actually mean?: The customer's bank refused the charge without giving a specific reason. It usually reflects the issuer's fraud rules or account restrictions rather than a lack of funds, and often only the cardholder can find out the real cause by calling their bank.
Will a Do Not Honor decline go through if I try again?: Sometimes. Because 05 is often triggered by situational risk scoring, a retry hours or a day later can succeed, especially after the cardholder confirms the purchase with their bank. Keep retries limited to avoid card network reattempt fees.
Why do I get so many 05 declines as a high-risk merchant?: Issuers factor your merchant category and acquiring bank into every authorization decision. High-risk MCCs and offshore acquiring BINs get scored more harshly, so the same cards that approve at mainstream merchants can return 05 on your site.

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