Yes, you can apply for a new US ESTA through Sherpa even if you already have an active one, but submitting a new application will permanently overwrite and cancel your existing ESTA.
What You Need to Know
When you submit a new ESTA application through Sherpa while you already have a valid one, your original ESTA will be overwritten and canceled as soon as it's processed with the government. This cancellation is permanent and cannot be reversed or recovered, even if your new application encounters issues. Your new ESTA, if approved, will have its own two-year validity period (or until your passport expires, whichever comes first) starting from the approval date.
Our Recommendation
Before submitting a new application, verify whether your current ESTA is still valid and contains accurate information. If you need to make corrections or update changed circumstances, submitting a new application is the right choice. However, if your existing ESTA is valid and accurate, you can continue using it for travel without needing to apply again.
A Quick Tip
Check your current ESTA status and expiration date before starting a new application with Sherpa. Knowing what authorization you have helps you decide whether applying for a new one is necessary for your situation.