Is there a way to change/remove the currency on an estimate?

Hi there, 

Thanks for connecting with us here. QuickBooks is a flexible program that helps you streamline your accounting. I'll be glad to steer you in the right direction so you can get back to doing what you enjoy. 

QuickBooks allows you to create/send estimates using your home currency or the base currency of the customer. For example, with the Multi-currency feature turned on on your account, you can add USD customer that you can send the estimate to using USD. Otherwise, the option to change the currency when creating an estimate isn't available as the Estimate module gives precedence to the customer's base currency. 

Let me know if you have other questions by leaving a comment below. I'll be one message away.