When sending Bitcoin, there are many questions that may come to mind. One of them is whether or not Bitcoin addresses are case sensitive.
Are Bitcoin addresses case sensitive?
Yes and no! The old-style public addresses of Bitcoin wallets are case-sensitive.
Whenever possible, you should copy and paste Bitcoin addresses using your computer’s clipboard.
Doing so will ensure that the public address is written correctly. If you attempt to type the address on your own, and it is not written as an exact copy of the original (including capitalization), you will not be able to complete the transaction. The order will simply be rejected by the Bitcoin network.
According to Bitcoin Wiki, the probability that a mistyped address is accepted as being valid is approximately 1 in 4.29 billion.
On the contrary, however, new-style public addresses (more commonly known as bech32 addresses) are case insensitive.
Is there any other way to copy and paste the address of a Bitcoin wallet?
Yes. Most public addresses will also come in the form of a QR code.
When trying to send Bitcoin, you will have the option to scan the QR code of the wallet you want to transfer your BTC to. While this method can only be used by mobile devices, it is a great way to send Bitcoin in a faster and more convenient way.