When I make a sale, transactions are recorded in HKD instead of USD. How do I change it so that it records in USD by default?

Hi there, michaelma3995.

Let me share some information about applying the USD in QuickBooks sales transactions.
 

If you're only referring to record the sales transactions as USD, we can turn on the multi-currency feature to make this thing possible. It also depends if the customer is assigned to USD United States Dollar within your book. It's how the system detects if the sales transaction will show as $ or HK$ within the Invoice or the Sales receipt page.

To turn on this feature. Please follow the steps below:

1. Go to the Gear icon.
2. Select Account and Settings under Your Company.
3. In the Advanced tab, click Edit in the Currency section.
4. Tick the Multicurrency box as well as the I understand I cannot undo Multicurrency box. Make sure your home currency  is set to HKD.
5. Click Save. Then, Done.

Once done, it's important to apply the USD currency to your customer. Here's how to do it:

1. Open a transaction. Let's say you're using invoice to record your sales.
2. Click the Customer drop-down arrow.
3. Select +Add new.
4. Enter the name of the customer and make sure to use the USD United States Dollar as currency. Then, Save. 

We can also check out here to learn another way of assigning a foreign currency to a customer. Once done, enter the items or any product you're selling.  We'll notice that QuickBooks gives us a rate between your home currency and customer's currency.

When manually receiving the payment, we can deposit it to the bank where it should be deposited.

It'll be recorded as $ in your book. We can also review the total $ amount where you deposited this transaction in the Chart of Accounts (COA). See the sample screenshot below:

Stay in touch if you're referring to something else or need further clarification about currency in the Online product. I hope your day is good. Stay safe and healthy!

@michaelma3995 

Just to clarify, you want to change your current home currency from HKD to USD, or just to record some sales transactions in USD?