Which Application Details Can Be Changed?
The Electronic Travel Authorization system permits certain fields to be updated after an application has been approved. Understanding the distinction between modifiable and non-modifiable information is crucial to maintaining your authorization's validity and avoiding unnecessary reapplications.
Can Be Updated
- Email address associated with your authorization record
- US point of contact name and address details
- Accommodation address within the United States
- Planned travel itinerary and arrival dates
- Airline or carrier information for your trip
- Emergency contact details for your journey
- Employment status and employer contact information
Requires New Application
- Legal name (first, middle, or last name changes)
- Passport number or country of issuance
- Date of birth or gender designation
- Citizenship or nationality information
- Responses to eligibility screening questions
- Any information tied to your biographic identity
When Should You Modify vs. Submit a New Application?
Deciding whether to update an existing authorization or begin a fresh application depends entirely on the nature of the changes you need to make. The Electronic Travel Authorization framework distinguishes between supplementary travel details and core identity information, treating each category differently.
If your travel plans shift — perhaps you've changed your accommodation, updated your flight itinerary, or switched to a different airline — these adjustments fall within the scope of permitted modifications. You can make these changes through your secure dashboard without affecting the validity of your existing authorization. The updated information takes effect immediately upon saving.
However, if you've obtained a new passport due to renewal, name change following marriage, or loss of your previous travel document, your existing authorization becomes void. Travel authorizations are electronically linked to your specific passport number, so any change to this foundational identifier necessitates a completely new application. Similarly, changes to your legal name or citizenship status require fresh submission because these details form the biographic core of your authorization.
Our team recommends verifying the nature of your required changes before taking action. Making the wrong choice — attempting to modify non-modifiable fields or unnecessarily reapplying when a simple update would suffice — can result in wasted time and additional costs. If you're uncertain about which path to take, our 24/7 support team can provide personalized guidance based on your specific situation.
How to Update Your Application
Access Your Secure Dashboard
Sign into your ESTA REG US account using the email address and password you created during your original application. Your dashboard displays all applications linked to your account, including group and family submissions.
Select the Application to Modify
Identify the specific authorization you wish to update. Each application is listed with its reference number, applicant name, and current status. Click the modification option next to the relevant entry.
Make Your Changes
Update the permitted fields with your corrected or new information. The system clearly indicates which fields are editable and which are locked. Double-check your entries for accuracy before proceeding.
Confirm and Save
Review a summary of all modifications before finalizing. Once confirmed, your updated information is saved immediately and reflected in your authorization record. You will receive an email confirmation of the changes made.
Common Modification Scenarios
Changed Flight or Airline
If your carrier or flight details have changed since your original submission, update your airline information through the modification portal. This ensures your records align with your actual travel arrangements upon arrival.
New Email Address
Switched email providers or prefer to receive updates at a different address? Update your contact email to ensure all status notifications, authorization confirmations, and support communications reach you without interruption.
Extended or Shortened Trip
Whether your travel dates have shifted forward, backward, or the duration of your stay has changed, updating your itinerary keeps your application record current and accurate for border processing.
Updated US Accommodation
Changed your hotel, moved to a different rental property, or updated your host's address? Modifying your US accommodation details ensures the information on file matches your actual arrangements during your stay.