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

# FX

> How incoming collects are held and when currency conversion happens

When funds arrive in a Collection Account, what happens next depends on whether the **incoming currency** matches one of your **holding currencies** on your Tazapay balance.

| Scenario                                        | Outcome                                                                                                                     |
| ----------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------- |
| Incoming currency **is** a holding currency     | Funds are credited and held in the same currency. No conversion takes place.                                                |
| Incoming currency **is not** a holding currency | The funds are converted to your **primary holding currency** at Tazapay's prevailing FX rate and credited in that currency. |

This means you can choose to hold balances in the same currencies you collect in — useful for natural-hedge use cases — or consolidate everything into a single primary currency.

***

## Managing Your Holding Currencies

You can configure which currencies you want to hold on your Tazapay balance. See:

<CardGroup cols={2}>
  <Card title="Viewing Balances" icon="scale-balanced" href="/getting-started/core-concepts/balances/overview">
    See your current balances across currencies.
  </Card>

  <Card title="Enabling Additional Currencies" icon="circle-plus" href="/getting-started/core-concepts/enabling-additional-balance-currencies">
    Add new holding currencies to your balance.
  </Card>
</CardGroup>

***

## Tracking FX on Collects

When an incoming collect is converted, the FX details are captured on the resulting **balance transaction**. The `balance_transaction_id` will be present on the [collect object](/api-reference/tazapay-api/collects) — so you can trace the full chain from `collect → FX conversion → credited balance` directly from the collect.

See the [FX Transaction object](/api-reference/tazapay-api/fx-transaction-object) for the field-level schema and [Balance Transactions](/getting-started/core-concepts/fx-transaction/overview) for tracking and reconciliation.