# Sub-accounts Up to 10 sub-accounts can be created after reaching $100,000 in volume. Every additional $100M in volume enables the ability to create 1 additional sub-account, up to a maximum of 50 sub-accounts. Sub-accounts share the same fee tiers as the master account, but referral discounts do not apply to sub-accounts. The number of API wallets available starts at 3 for all master accounts and increases by 2 per sub-account. Refer to the [API Docs](https://hyperliquid.gitbook.io/hyperliquid-docs/for-developers/api/exchange-endpoint#subaccounts-and-vaults) for trading via sub-account. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://hyperliquid.gitbook.io/hyperliquid-docs/trading/sub-accounts.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.