> ## Documentation Index
> Fetch the complete documentation index at: https://docs.dionysus.finance/llms.txt
> Use this file to discover all available pages before exploring further.

# Fees

> One fee. On profit. At exit. That's the whole model.

Dionysus charges exactly one fee: **a performance fee on realised profit, collected at the moment value leaves your vault.**

## What that means in practice

|                                                                            |                                                              |
| -------------------------------------------------------------------------- | ------------------------------------------------------------ |
| Deposit fee                                                                | **None**                                                     |
| Management fee (on principal or time)                                      | **None**                                                     |
| Fee while your capital stays in the vault                                  | **None** — nothing is ever skimmed inside the vault          |
| Fee on withdrawals up to what you put in                                   | **None** — principal comes back untouched                    |
| Fee on realised profit above your [high-water mark](/fees/high-water-mark) | **A fixed percentage**, immutable for the life of your vault |

The exact percentage is written into your vault at deployment, shown before you create it, and — by contract — can never be raised afterward. The contract additionally hard-caps what any vault generation could ever set.

## Where the fee is charged

At the **fee gate**: the single choke point every outbound transfer passes through. When value leaves the vault, the contract values it, compares your cumulative withdrawals against your cumulative contributions, and charges the fee only on the portion that is new profit. Everything inside the vault — rebalancing, harvesting, compounding — is fee-free activity.

## You always see it first

Before you confirm any exit, the app shows a **fee projection**: your profit above high-water, the fee, and your net proceeds. The projection is refreshed at signing time. No surprises at the last step — see [Profit fee at exit](/fees/profit-fee-at-exit) and the [worked examples](/fees/worked-examples).

## When the fee is zero

* You exit at or below your high-water mark (no realised profit) — most exits after a flat or down period cost nothing.
* A price feed is stale at exit time: the vault **waives** the fee rather than compute it from a bad number, and logs the waiver in your statement.

<Note>
  Why exit-only? Because it aligns us exactly with you: we earn nothing from your deposits, nothing from your patience, and nothing from churn — only from profit you actually take home.
</Note>