Utility Bill · Crypto Exchange KYC

How to redact your utility bill for verifying a crypto exchange account

Sending a utility bill to a crypto exchange? Here's exactly what to black out, what to keep, and how to redact it in under a minute — fully offline on your iPhone.

Coming soon to the App Store Updated 2026-06-03
Quick answer

Black out the account number and any card or bank payment details on your utility bill, and keep your name visible so a crypto exchange can still verify you. Stamp the copy "For [exchange] account verification only", then export a flattened PDF — all on your iPhone, nothing uploaded.

Why a crypto exchange asks for your utility bill

Exchanges are legally required to verify your identity and address before you can trade or withdraw. A utility bill is a common proof of address; it shows your name, service address, account number, and amount due.

A crypto exchange needs your identity and address confirmed through their secure verification flow — not extra copies sitting in email or chat. The catch: the account number with your name and address supports account-takeover and address fraud. That's why you should hand over a redacted copy — see the full utility bill redaction guide or what to redact for verifying a crypto exchange account.

What to redact on your utility bill

  • Account number It can be used to social-engineer the utility and take over the account.
  • Any card or bank payment details Printed payment info enables direct fraud.
  • Usage and personal details you don't need to show Minimize to just what proves your address.

What to keep visible (so it's still accepted)

  • Your name
  • Your service address
  • The issue date, to prove the bill is recent

The watermark to add

Stamp a purpose watermark so the copy can't be reused beyond verifying a crypto exchange account:

Recommended For [exchange] account verification only — [your name], [date]

Redact your utility bill in 4 steps

  1. Pick the photo. Open Cachera and choose the photo of your utility bill with the system picker — only that photo is read, never your whole library.
  2. Black out the sensitive fields. Drag a black block over the account number and any card or bank payment details. On export those pixels are destroyed — there's no hidden layer to recover underneath.
  3. Add a purpose watermark. Stamp "For [exchange] account verification only" so the copy can't be reused beyond verifying a crypto exchange account.
  4. Export and send. Lay it out on A4, export a PDF, and share it with a crypto exchange. Everything happened on your iPhone — nothing was uploaded.

Is this OK to do?

Best practice: Only upload inside the exchange's official verification flow — never to 'support' over email, chat, or social media, a very common phishing scam. Watermark each copy to the specific exchange. Redacting non-essential fields and adding a purpose watermark is a widely accepted way to share documents safely. When an organization is legally required to see an unredacted field, provide it in person rather than as a stored copy.

FAQ

Will a crypto exchange still accept a redacted utility bill?

Yes. Keep your name and your service address visible so they can confirm what they need, redact only the sensitive fields, and add a clear "For [exchange] account verification only" watermark. A watermarked, partially-redacted copy is normal, accepted practice.

What should I never show on a utility bill?

Hide account number, any card or bank payment details, usage and personal details you don't need to show. The account number with your name and address supports account-takeover and address fraud.

Can the black bars be removed from the copy later?

No. Cachera flattens the redaction into the image on export — there is no hidden layer beneath the black blocks, so the covered text cannot be recovered from the PDF.

Should I send the original utility bill instead?

Only upload inside the exchange's official verification flow — never to 'support' over email, chat, or social media, a very common phishing scam. Watermark each copy to the specific exchange. A redacted copy with a purpose watermark is usually the safer choice.

Redact it now — on your iPhone, nothing uploaded

Cachera blacks out the pixels for good, stamps a purpose watermark, and exports a print-ready PDF. Fully offline.

Coming soon to the App Store