How do I sell Bitcoin on Blockchain or Coinbase

Welcome to the forum.

There are a couple of steps you will need to undertake here.

The first thing you will need to do is open an account on Coinbase, and undergo their KYC procedures. This will involve telling them lots of details about yourself, as well as uploading photocopies or pictures of ID documents, and maybe even a selfie holding the ID document. You will be unable to cash out USD on Coinbase without doing this. If you do want to sell your bitcoin without giving away all these kinds of details, then you will need to look in to peer-to-peer trading on places like bisq, paxful, or the currency exchange board on this forum. If you do try to trade peer-to-peer, be very vigilant for people trying to scam you, and use a trusted escrow.

The next thing you will need to do is send your bitcoin from your Blockchain wallet to your Coinbase account. In your Coinbase account, there will be a tab that says "deposit", and it will generate a bitcoin address for you (a string of usually 34 random upper and lower case letters and numbers). Copy this address. In your Blockchain account, you will need to click on "send", and then paste in your address from Coinbase. Double check the address you have pasted in matches the address on the Coinbase page.

Next, type in how much bitcoin you wish to send from Blockchain to Coinbase. I would highly recommend transferring a small amount initially (0.001 BTC or similar) to ensure that you have followed the above steps correctly. Once this small transaction has cleared successfully, then you can make another transaction with the rest of your funds. When picking a fee, if you are not in a hurry to sell, then set the fee very low to save yourself money.

Once the bitcoin has reached your Coinbase account, you can place a sell order to USD, and then cash out to your bank account.