> For the complete documentation index, see [llms.txt](https://docs.leather.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.leather.io/stacking-and-sbtc-reference/stacking-amount.md).

# Staking amount

How much STX you can stake, the pool minimum and the STX Leather keeps for fees.

The staking amount is the STX you lock with a pool. You enter it as "Amount of STX to stake".

* **Minimum:** each pool sets its own. The protocol has no minimum per staker.
* **Maximum:** your available STX, minus 0.5 STX that app.leather.io keeps for transaction fees.
* **Adding STX:** you can add to an active stake with "Update stake". To take STX out, you unstake the whole amount.

Your rewards depend on the amount you stake, the pool's fee and network-wide staking participation.