Visa Payment Decline Code
Visa Decline Code 91: Issuer Unavailable or Switch Inoperative
Category Issuer or Network AvailabilityRetry Guidance Soft Decline (Editorial Classification)By Payment Defender Editorial TeamUpdated July 17, 2026Last reviewed July 17, 2026
What Visa Decline Code 91 Means
Visa response code 91 indicates the issuer is unavailable or the switch is inoperative. The authorization could not reach the issuer.
Where the Response May Come From
This Visa response comes from an availability condition between the acquirer and issuing bank, and reflects an issuer or switch that could not be reached.
Common Reasons for This Response
Common causes include an issuer system outage, network routing problems, or maintenance that made the issuer temporarily unreachable.
Should the Merchant Retry the Payment?
Treat this as a soft decline tied to an issuer or switch that could not be reached: a single delayed retry may clear once the condition passes, but avoid rapid repeated attempts.
Recommended Merchant Action
Because this decline reflects an issuer or switch that could not be reached, wait briefly and resubmit once, and check processor status if the condition persists.
What to Tell the Customer
Ask the customer to try the payment again shortly.
How to Reduce Similar Payment Failures
Tracking how often an issuer or switch that could not be reached appears by issuer and BIN can help you queue and retry once availability recovers.
Important Limitations
Decline-code meanings vary by processor, gateway, and payment environment, and issuers may not disclose the precise reason behind this response. The retry classification on this page is Payment Defender editorial guidance, not an official network rule. Merchants should confirm handling with their processor or gateway.
Related Decline Codes
Sources and Review Information
Last reviewed July 17, 2026
Raw network-response codes are supplemental to the complete processor or gateway response. Meanings and recommended actions can vary by issuer, processor, gateway, card network, payment method, region, and merchant configuration.