# Fund Collateral Account

Source: https://developers.bitgo.com/docs/trade-margin-fund-account

## Overview

Before you can being trading on margin, you must transfer assets from your Go Account to your Collateral Account.

BitGo accepts the following assets as collateral:

* USD
* USDT
* USDC
* BTC

After transferring assets into your Collateral Account, the assets lock and you can only withdraw them by contacting support@bitgo.com.

## Prerequisites

* [Get Started](/docs/get-started-intro)
* [Create Wallets](/docs/wallets-create-wallets)
* [Deposit Assets](/docs/deposit-assets)

## Cookbook

Need just the steps? Expand the cookbook below to get started:

<Cookbook slug="fund-collateral-account" title="Fund Collateral Account" />

## Deposit Assets

>Endpoint: [Transfer Collateral for Margin](/reference/trademargincollateraltransfer)

```shell cURL
export BITGO_EXPRESS_HOST="<YOUR_LOCALHOST>"
export ACCOUNT_ID="<YOUR_ACCOUNT_ID>"
export ACCESS_TOKEN="<YOUR_ACCESS_TOKEN>"
export CURRENCY="<ASSET_ID>"
export QUANTITY="<AMOUNT_IN_BASE_UNITS>"
curl -X POST \
  http://$BITGO_EXPRESS_HOST/api/prime/trading/v1/accounts/$ACCOUNT_ID/margin/collateral/transfer \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $ACCESS_TOKEN" \
  -d '{
        "currency": "'"$CURRENCY"'",
        "quantity": "'"$QUANTITY"'",
      }'
```

#### Step Result

```json JSON
{
  "currency": "BTC",
  "quantity": "2",
  "balanceValue": {
    "quantity": "1000000",
    "currency": "USD"
  }
}
```

## Next

[Place Margin Order](/docs/trade-margin-margin-order)

## See Also

[Go Network Overview](/docs/go-network-overview)