<p>Your bitcoin client must have used a full UTXO to paid for your transactions, since you didnt own the exact amount your bitcoin client created a new private key where it send the remaining ( 20-5 = 15 ) bitcoins, also you had to pay a fees to the miner who mined the block that got your transaction.</p>

<p>To learn more about this process you should go there <a href="https://en.bitcoin.it/wiki/Change" rel="nofollow noreferrer">https://en.bitcoin.it/wiki/Change</a> </p>

<p>If you want to receive new coins, The most private and secure way would be to use a new address given by your wallet, I suggest you to learn about HD wallet who can give you automatically a new address each time you want to receive new bitcoins.</p>

CC BY-SA 4.0
2020-05-08T03:33:04.793Z
yes, you right, I fixed it
Saxtheowl
CC BY-SA 4.0
2020-05-07T19:57:29.280Z
2020-05-08T03:32:43.580Z
2020-05-08T03:32:43.580Z
Saxtheowl
<p>Let's say I have 20 bitcoins in address A. I sent 5 bitcoins from address A to address B. Why is that the remaining bitcoins got sent to address C that I never used or knew before. </p>

<p>I still get access to the remaining 15 bitcoins using the private key of A, but it doesn't show anymore in recipient address A. This is very confusing and would appreciate if someone would clarify.</p>

<p>Also, when I need to receive any bitcoins, which I address should I use? Original address A or address C?</p>

CC BY-SA 4.0
2020-05-08T00:40:28.283Z
Does this answer your question? [How does change work in a bitcoin transaction?](https://bitcoin.stackexchange.com/questions/736/how-does-change-work-in-a-bitcoin-transaction)
chytrik
<transactions><private-key><balance><sending><sendtoaddress>
Remaining bitcoins sent to a different address
MAPK
# Remaining bitcoins sent to a different address

(Asked by: username_0 on 2020-05-07)

Let's say I have 20 bitcoins in address A. I sent 5 bitcoins from address A to address B. Why is that the remaining bitcoins got sent to address C that I never used or knew before.

I still get access to the remaining 15 bitcoins using the private key of A, but it doesn't show anymore in recipient address A. This is very confusing and would appreciate if someone would clarify.

Also, when I need to receive any bitcoins, which I address should I use? Original address A or address C?

**Tags:** transactions, private-key, balance, sending, sendtoaddress

> **Comments:**
> **username_1**: Does this answer your question? [How does change work in a bitcoin transaction?](https://bitcoin.stackexchange.com/questions/736/how-does-change-work-in-a-bitcoin-transaction)  

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## 1 answers

### Answer by username_2 on 2020-05-07. Score: 2 | Accepted answer

Your bitcoin client must have used a full UTXO to paid for your transactions, since you didnt own the exact amount your bitcoin client created a new private key where it send the remaining ( 20-5 = 15 ) bitcoins, also you had to pay a fees to the miner who mined the block that got your transaction.

To learn more about this process you should go there <https://en.bitcoin.it/wiki/Change>

If you want to receive new coins, The most private and secure way would be to use a new address given by your wallet, I suggest you to learn about HD wallet who can give you automatically a new address each time you want to receive new bitcoins.

> **Comments:**
> **username_2**: yes, you right, I fixed it  

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