Know Your Customer (KYC)

Know Your Customer (KYC) refers to the identity and business verification checks Amazon and its payments partners run to comply with financial regulations. KYC is broader than SIV and is closely tied to it in practice — a KYC failure often triggers a fresh SIV request.

Read the full SIV and KYC guide

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Quick Answers

Here’s what sellers most often ask about Know Your Customer (KYC).

How long does resolving Know Your Customer (KYC) usually take?

Should I handle this myself or get help?

Know Your Customer (KYC) covers the general pattern — your specific case may need a more tailored approach depending on the exact notice you received.

Here’s what sellers most often ask about Know Your Customer (KYC).

How long does resolving Know Your Customer (KYC) usually take?

Should I handle this myself or get help?

Know Your Customer (KYC) covers the general pattern — your specific case may need a more tailored approach depending on the exact notice you received.

Worth remembering with Know Your Customer (KYC): Amazon’s process weighs the quality of evidence over the volume of explanation.

The core principle behind Know Your Customer (KYC) applies broadly, but the details of your response should match your exact notice.

Know Your Customer (KYC) tends to resolve faster when the response directly mirrors the structure of Amazon’s original notice.

Know Your Customer (KYC) tends to resolve faster when the response directly mirrors the structure of Amazon’s original notice.

What separates a fast resolution on Know Your Customer (KYC) from a slow one is usually preparation before you ever hit submit.

Whatever the outcome, keep a copy of everything you send for your own records going forward.

What separates a fast resolution on Know Your Customer (KYC) from a slow one is usually preparation before you ever hit submit.

Whatever the outcome, keep a copy of everything you send for your own records going forward.

A well-prepared response to Know Your Customer (KYC) issues usually shares a few traits: it is specific, dated, and tied directly to the policy language cited. Cases that reference the exact policy clause, include dated screenshots, and avoid vague language about ‘improving processes’ are processed noticeably faster in most reported experiences. Consistency between what is claimed in the appeal and what is visible in the account’s actual order history matters more than polished language.

Know Your Customer (KYC) is one of those areas where the difference between a fast resolution and a stalled account often comes down to preparation, not luck. Keeping a running log of supplier communications, tracking numbers, and internal QC checks makes future submissions faster since the evidence is already organized. Every account’s history is different, so treat general guidance as a starting point rather than a guaranteed template.

Know Your Customer (KYC) sits at the intersection of policy compliance and operational history, so a single missing data point can change how a case is read. Where third-party suppliers or freight partners are involved, naming them directly along with dates and order numbers reduces the chance of the case being read as incomplete. Getting a second pair of eyes on the draft before submission catches gaps that are easy to miss after reading a notice repeatedly.

For sellers dealing with Know Your Customer (KYC) for the first time, the learning curve is steep mainly because the terminology overlaps with several other Amazon processes. It helps to separate what happened from why it happened — a timeline of events paired with the specific corrective steps taken tends to read as more credible than a general apology. Ultimately, the goal is to give the reviewer enough verified detail that no follow-up questions are needed.

Understanding Know Your Customer (KYC) properly means looking past the surface-level advice and focusing on what Amazon’s investigation teams are actually trained to check. A response that only addresses the single flagged order, without showing what changed operationally, tends to get treated as insufficient even when the facts are accurate. If the case involves multiple linked issues, it is usually worth addressing them together rather than filing separate appeals.