--- title: "Settling cash in a different currency" slug: "settling-cash-in-a-different-currency" updated: 2026-06-08T08:02:46Z published: 2026-06-08T08:02:46Z canonical: "support.lusid.com/settling-cash-in-a-different-currency" --- > ## 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. # Settling cash in a different currency When you book a transaction you set or calculate a total consideration amount in [settlement currency](/v1/docs/transactions-and-exchange-rates). When you load a settlement instruction (SI) for a cash movement generated by that transaction you can choose to accept an amount in a different currency, in lieu of the original amount and currency. For example, imagine we have a standard `Buy` transaction for 100 units of BP @ £5 per share with a total consideration of £500. On the trade date, the temporary cash commitment is a `CCY_GBP` holding with a cost of -£500: ![](https://cdn.document360.io/d575ad81-c0ed-4980-bbd1-d59ac5c3de82/Images/Documentation/image-FM872U2D.png) To settle the cash in a different currency, either: - Specify a new currency and two amounts, the new and the original, directly on the SI. - Specify a currency and the new amount on the SI and ask LUSID to look up a FX rate to calculate the original amount. Note if you do both, direct specification of two currencies on the SI is preferred. ## Specifying both amounts directly on the settlement instruction LUSID web appLUSID API Call the [UpsertSettlementInstructions](https://www.lusid.com/docs/api/lusid/endpoints/transaction-portfolios/UpsertSettlementInstructions) API and, for a SI with a `settlementCategory` of `CashSettlement` or `DeferredCashReceipt`: - In the `instrumentIdentifiers` object, specify the LUID of the new currency (in this case USD). - In the `units` field, specify the amount to accept in the new currency (in this case -630). - In the `settlementInLieu` object, specify the `originalSettlementCurrency` (in this case GBP) and original `amount` (-500): ```json curl -X POST "https://.lusid.com/api/api/transactionportfolios/Equities/UK-Growth/settlementinstructions"  -H "Authorization: Bearer "  -H "Content-Type: application/json-patch+json"  -d '[  {    "settlementInstructionId": "Settle-Txn01-10-Sep-2025",    "transactionId": "Txn01",    "settlementCategory": "CashSettlement",    "instrumentIdentifiers": {"Instrument/default/LusidInstrumentId": "CCY_USD"},    "actualSettlementDate": "2025-09-10T00:00:00.0000000+00:00",    "units": -630,    "settlementInLieu": {      "originalSettlementCurrency": "GBP",      "amount": -500    }  } ]' ``` Follow the instructions for [creating a settlement instruction](/v1/docs/loading-settlement-instructions) and, in the **Create cash settlement** dialog: 1. From the **Settlement currency** dropdown, choose the new currency (in this case USD, in yellow). 2. In the **Amount to settle** field, specify the amount to accept in the new currency, in this case -630 (in green). Note this field still shows the original currency (in this case GBP), but this should change soon. 3. In the **In lieu amount** field, specify the original amount to settle, in this case -500 (in red). ![](https://cdn.document360.io/d575ad81-c0ed-4980-bbd1-d59ac5c3de82/Images/Documentation/image-IXZ3Q7TP.png) In this example, accepting USD instead of GBP changes the now-settled cash balance to a `CCY_USD` holding with a cost of -$630: ![](https://cdn.document360.io/d575ad81-c0ed-4980-bbd1-d59ac5c3de82/Images/Documentation/image-PVNXBTGT.png) ## Asking LUSID to look up a FX rate to calculate the original amount You must first: 1. Create a recipe with a market data rule for the currency pair, for example USD/GBP. 2. Register this recipe with the portfolio. 3. Load a FX rate valid for the actual settlement date into the Quote Store. [See how to perform these steps](/v1/docs/transactions-and-exchange-rates#looking-up-exchange-rates-dynamically-using-a-recipe). You must then configure the portfolio to enable look up for cash, deferred cash, or both: LUSID web appLUSID API To configure an existing portfolio, call the [PatchPortfolioDetails](https://www.lusid.com/docs/api/lusid/endpoints/transaction-portfolios/PatchPortfolioDetails/) API and re-specify the entire `settlementConfiguration` object to include `calculateInLieuSettlementAmount` set to `true`, for example: ```json curl -X POST "https://.lusid.com/api/api/transactionportfolios/Equities/UK-Growth/details"  -H "Authorization: Bearer "  -H "Content-Type: application/json-patch+json"  -d '[  {    "path": "/settlementConfiguration",    "op": "add",    "value": {      "stockSettlement": {"method": "Automatic"},      "cashSettlement": {        "method": "Instructed",        "calculateInLieuSettlementAmount": true      },      "deferredCashReceipt": {"method": "Instructed"}    },  } ]' ``` Navigate to the **Data Management > Portfolios** dashboard, locate the portfolio to edit and, on the **Details** tab, enable **In lieu settlement amount** for cash and/or deferred cash: ![](https://cdn.document360.io/d575ad81-c0ed-4980-bbd1-d59ac5c3de82/Images/Documentation/image-E06UQD82.png) This time, do not specify the original amount when creating a settlement instruction: LUSID web appLUSID API Call the [UpsertSettlementInstructions](https://www.lusid.com/docs/api/lusid/endpoints/transaction-portfolios/UpsertSettlementInstructions) API and, for a SI with a `settlementCategory` of `CashSettlement` or `DeferredCashReceipt`: - In the `instrumentIdentifiers` object, specify the LUID of the new currency (in this case USD). - In the `units` field, specify the amount to accept in the new currency (in this case -630). - In the `settlementInLieu` object, specify the `originalSettlementCurrency` (in this case GBP) but omit the `amount` field: ```json curl -X POST "https://.lusid.com/api/api/transactionportfolios/Equities/UK-Growth/settlementinstructions"  -H "Authorization: Bearer "  -H "Content-Type: application/json-patch+json"  -d '[  {    "settlementInstructionId": "Settle-Txn01-10-Sep-2025",    "transactionId": "Txn01",    "settlementCategory": "CashSettlement",    "instrumentIdentifiers": {"Instrument/default/LusidInstrumentId": "CCY_USD"},    "actualSettlementDate": "2025-09-10T00:00:00.0000000+00:00",    "units": -630,    "settlementInLieu": {      "originalSettlementCurrency": "GBP"    }  } ]' ``` Follow the instructions for [creating a settlement instruction](/v1/docs/loading-settlement-instructions) and, in the **Create cash settlement** dialog: 1. From the **Settlement currency** dropdown, choose the new currency (in this case USD, in yellow). 2. In the **Amount to settle** field, specify the amount to accept in the new currency, in this case -630 (in green). Note the field still shows the original currency (in this case GBP), but this should change soon. 3. Leave the **In lieu amount** field empty. ![](https://cdn.document360.io/d575ad81-c0ed-4980-bbd1-d59ac5c3de82/Images/Documentation/image-J9M2YTT1.png) In our example, accepting $630 and loading a USD/GBP rate for 10 September 2005 of 0.75 causes LUSID to: - Create a settled `CCY_USD` cash balance holding with a cost of -$630. - Calculate that 630 × 0.75 = 472.50 and so retain an unsettled `CCY_GBP` cash commitment holding for the remainder outstanding of -500 + 472.50 = -£27.50: ![](https://cdn.document360.io/d575ad81-c0ed-4980-bbd1-d59ac5c3de82/Images/Documentation/image-S6JV63JI.png)