---
title: "Segregating holdings using custodian accounts"
slug: "segregating-holdings-using-custodian-accounts"
updated: 2026-08-14T07:21:13Z
published: 2026-08-14T09:27:15Z
canonical: "support.lusid.com/segregating-holdings-using-custodian-accounts"
---

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

# Segregating holdings using custodian accounts

You have the option to set up any number of *custodian accounts* within a [transaction portfolio](/v1/docs/what-is-a-transaction-portfolio).

Custodian accounts can be used to segregate holdings in the same was as [sub-holding keys](/v1/docs/what-is-a-sub-holding-key-shk) (SHKs). Advantages of custodian accounts over SHKs may be:

- LUSID automatically establishes connections between custodian accounts and [legal entities](/v1/docs/representing-institutions-in-lusid-using-legal-entities) mastered in LUSID.
- Custodian accounts are simpler to manage (create, read, update and delete).
- Custodian accounts have their own [tax lot accounting methods](/v1/docs/what-are-the-supported-tax-lot-accounting-methods-in-lusid), so you can manage liquidation strategies at a more granular level.
- You can set up mechanisms to automatically assign transaction movements to different custodian accounts, so for example the purchased stock units of a `Buy` transaction to a `HSBC-Stock` custodian account, and the corresponding cash outlay to a `HSBC-Cash` account.

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![](https://cdn.document360.io/d575ad81-c0ed-4980-bbd1-d59ac5c3de82/Images/Documentation/CustodianAccounts(1).png?sv=2026-02-06&spr=https&st=2026-11-04T02%3A00%3A53Z&se=2026-11-04T03%3A00%3A53Z&sr=c&sp=r&sig=NK8gYmVrVOtC%2BLevwDfu2mCfUh62MeIjxFgthxUJa9E%3D)

To get started, see how to [create custodian accounts](/v1/docs/how-do-i-create-and-register-custodian-accounts).