> For the complete documentation index, see [llms.txt](https://docs.vault.ky/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.vault.ky/contributing/fees.md).

# Fees

| Fee                   | Amount                | When it applies                                                                |
| --------------------- | --------------------- | ------------------------------------------------------------------------------ |
| Contribution fee      | 0.03%                 | Taken when you contribute. Non-refundable, and does not count toward the goal. |
| Refund processing fee | 2%, capped around $20 | Only if the campaign does not succeed and you are refunded.                    |
| Solana network fee    | Varies                | Every on-chain action. Paid to Solana, not to Vault.                           |
| Tip                   | Your choice           | Optional, after a campaign fully funds.                                        |

## Contribution fee

A 0.03% fee is deducted when you contribute. It is non-refundable and does not count toward the campaign goal. This applies to every contribution regardless of how the campaign ends.

## Refund processing fee

If a campaign fails and you are refunded, a 2% processing fee applies to your refundable principal. The fee is capped per contributor at roughly a $20 equivalent, fixed in SOL when the campaign is created.

You recover your escrowed principal minus this fee. Contribution fees already paid and any tips are non-refundable.

## Network fees

Every on-chain action costs a Solana network fee. This is paid to the Solana network, not to Vault. It is typically a fraction of a cent, but network fees vary with congestion.

## Tips

Tips are optional and opt-in. They are non-refundable and do not count toward the campaign goal.

## How Vault makes money

Vault earns from the contribution fee, the refund processing fee, and — on service-backed campaigns — the margin between the campaign's stated amount and Vault's vendor cost.

There is no separate platform fee on successful campaigns beyond what is listed in the table above.


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