<p>There is no <code>from</code> address in Bitcoin.
<a href="https://en.bitcoin.it/wiki/From_address" rel="nofollow noreferrer">https://en.bitcoin.it/wiki/From_address</a></p>

<p>Each transaction reference an unspent output <code>(UTXO)</code> that was sent to you in a previous transaction.</p>

<p>About the address, you need to generate a new one for each payment:
<a href="https://en.bitcoin.it/wiki/Address" rel="nofollow noreferrer">https://en.bitcoin.it/wiki/Address</a></p>

CC BY-SA 3.0
2017-10-03T09:23:16.247Z
2017-10-03T09:23:16.247Z
Julien Klepatch
<p>This website ask me to enter the address FROM where I would be sending BTCs.
But every time a send some BTC it seems to be sent out from a different address...
Should I use the one I always see when I say I want to "receive" some BTC? Is it my "main" address?</p>

CC BY-SA 3.0
2017-10-03T19:45:49.623Z
It sounds like the website you're interacting with doesn't understand how Bitcoin works.
Greg Hewgill
<address><address-reuse>
How can we know our "from" address in advance?
Jusoaresf
# How can we know our "from" address in advance?

(Asked by: username_0 on 2017-10-03)

This website ask me to enter the address FROM where I would be sending BTCs.
But every time a send some BTC it seems to be sent out from a different address...
Should I use the one I always see when I say I want to "receive" some BTC? Is it my "main" address?

**Tags:** address, address-reuse

> **Comments:**
> **username_1**: It sounds like the website you're interacting with doesn't understand how Bitcoin works.  

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## 1 answers

### Answer by username_2 on 2017-10-03. Score: 1 | Accepted answer

There is no `from` address in Bitcoin.
<https://en.bitcoin.it/wiki/From_address>

Each transaction reference an unspent output `(UTXO)` that was sent to you in a previous transaction.

About the address, you need to generate a new one for each payment:
<https://en.bitcoin.it/wiki/Address>


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