KBA (Knowledge-Based Authentication) credits are used to verify signer identity during secure document signing. This article explains whether KBA credits expire and how long they remain available after purchase.
Why This Matters
Understanding how KBA credits work helps you plan document signing workflows without worrying about unused credits expiring or needing to be repurchased unnecessarily.
Table Of Contents
Do KBA Credits Expire?
No. KBA credits do not expire.
Once purchased, KBA credits remain available indefinitely and can be used at any time, regardless of when they were purchased.
Key Details To Know
No Expiration Date — KBA credits remain active after purchase and do not expire.
Flexible Usage — Credits can be used whenever identity verification is required, with no time-based restrictions.
Why Your Balance May Look Lower Than Expected
Skip this section if your balance matches what you expect.
Credits don't expire, but they can appear unavailable if they're reserved on incomplete eSign tasks. A credit is reserved as soon as KBA is added to a task — not when the task is completed — so an outstanding task holds its credit until the task is finished, archived, or deleted.
If you believe you're missing credits, this reservation is the most common cause rather than expiration. See How Do I Manage KBA Credits For eSign? for steps to recover credits tied to incomplete tasks.
Summary
KBA credits do not expire and can be used at any time after purchase. If your available balance looks lower than expected, it's most likely due to credits reserved on incomplete tasks rather than lost or expired credits.
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