# Usual bUSD0 (formerly USD0++) Investment Vault

## Overview

The **Usual bUSD0 Investment Vault** is a seamlessly integrated, yield-bearing vault designed to make DeFi investment effortless and immediate. bUSD0 holders can deposit directly into the vault and begin earning yield **synchronously** — no waiting periods, no bridging, and no off-platform interaction required. All returns are compounded through carefully curated DeFi strategies and users also receive USUAL token rewards. This synchronous model keeps user assets productive from the moment of deposit, while not needing to leave the Usual ecosystem — maximizing both convenience and capital efficiency.

<details>

<summary><strong>Depositing into the vault</strong></summary>

When a user deposits into the vault using bUSD0 (or other supported tokens), the process is immediate and fully automated. Behind the scenes, the system swaps these tokens into the vault's yield-bearing asset and deposits them — all in one synchronous transaction. Users receive vault shares instantly, which begin earning yield without delay. There's no need to manually manage assets across protocols or worry about market timing — every deposit is executed atomically, and earnings start from block one.

</details>

<details>

<summary><strong>Withdrawing from the vault</strong></summary>

Withdrawals from the vault are just as streamlined. Users redeem their shares in a single step, triggering the vault to withdraw the underlying asset, calculate and apply any fees, and swap it back to bUSD0. This entire process is handled synchronously within the same transaction, ensuring users get immediate access to their funds without waiting for batch processing or delayed harvests. It's fast, reliable, and fully integrated within the Usual infrastructure.

</details>

## Smart Contracts

{% content-ref url="/pages/XWFXRZeD1sOLrTFs4LVV" %}
[Usual bUSD0 Investment Vault](/smart-contracts/token-contracts/usual-usd0++-investment-vault.md)
{% endcontent-ref %}

{% content-ref url="/pages/EUSBAWJiOvY1GPFmRBY3" %}
[VaultRouter](/smart-contracts/token-contracts/usual-usd0++-investment-vault/vaultrouter.md)
{% endcontent-ref %}


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