# Sponsor Fees

The payer for an on-chain transaction fee can be different from the vault that holds the assets being sent.

With this Fordefi feature, you do not need to distribute native tokens across every vault to cover transaction fees. Instead, you can maintain a single, central vault to hold the native asset (for example, SOL) and use it to sponsor fees for all other vaults.

## Supported chains

This feature is available on:

- Aptos
- EVM (Ethereum, Avalanche, Base, Blast, BNB Chain, Flare, Linea, Plasma, Polygon, Scroll, Sei V2, Sonic, Unichain, Xai, ZetaChain)
- Solana
- Sui


## Activate the feature

To make the feature available during transaction creation, activate it first.

1. In the side bar, click **Settings** > **Fee sponsorship**.

2. Toggle on the chain types you wish to activate.
Now, you can choose a vault that is different from the sender when you create a transaction.
In the example shown here, `Moran Solana` is both the sender and the fee payer, by default. You can choose a different, sponsor vault as the fee payer, if you wish.
For each EVM vault and chain, you also need to [enable it as a Smart Account](/user-guide/vaults/evm-vaults).