What Is AOR in Canadian Immigration

An Acknowledgment of Receipt (AOR) is the notice Immigration, Refugees and Citizenship Canada (IRCC) sends once your application has been received and accepted into processing. It is the first official milestone for an Express Entry application, a family sponsorship file or a temporary permit, and it gives you the numbers you need to follow your case from that point on.

AOR Meaning for Your Canada Immigration Application

The AOR is short, but it confirms several things and leaves others open.

What the AOR Confirms

For most application types, IRCC issues the AOR after a completeness check under section 10 of the Immigration and Refugee Protection Regulations. That check looks at signed forms, answered questions, required documents and proof of fee payment. An application that fails it is not accepted for processing and is usually returned. Once you have the AOR, you can check your status online. Explore our dedicated article covering track your application for additional information.

What the AOR Does Not Mean

An AOR is not an approval, and it does not mean an officer has assessed your evidence. Express Entry AORs are generated automatically at submission, so a file can still be refused later for a missing or weak document.

Application Number, UCI and Lock-In Date

The AOR shows your application number, which belongs to this one application, and your Unique Client Identifier (UCI), which stays with you across every application you make. For permanent residence, IRCC generally judges a dependent child's age on the date it receives a complete application, often called the lock-in date. For online applications that is the day you submit.

AOR Timing for Express Entry, Sponsorship and Work Permits

How long an AOR takes depends on the program and on how you applied.

Express Entry Applications

The AOR appears in your IRCC account within minutes of submitting your electronic application for permanent residence. The date on it matches your submission date.

Spousal and Family Sponsorship

Sponsorship AORs are not automatic. IRCC reviews the package for completeness first, which can take several weeks or longer in busy periods. For a spousal sponsorship, the confirmation email you get on submission is not the AOR, so keep watching your account.

Provincial Nominee PR Applications

Completeness checks for Provincial Nominee Program PR applications have been running long, which delayed in-Canada work permits that normally require an AOR. Until December 31, 2026, IRCC accepts alternative proof for PNP work permits, the PNP Bridging Open Work Permit and certain spousal open work permits. That proof can be the portal submission email plus proof of fee payment. Applications made from outside Canada still need the AOR itself.

Study Permit and Work Permit Applications

Online temporary residence applications usually show the AOR soon after submission. If you are changing a visitor visa to a study permit, or applying for a work permit backed by a Labour Market Impact Assessment, the AOR covers the permit application only, not the employer's LMIA. See our comprehensive guide on Port of Entry Letter of Introduction to continue reading.

Paper Applications

Paper packages are logged and entered by hand, so the AOR can take several weeks to arrive. Send the package with a tracked, signature-required service so you have proof of delivery while you wait.

Next Steps After Receiving Your AOR

The AOR starts the waiting period, but there is still work to do on your side.

Save the AOR and Keep Contact Details Current

Save a copy in more than one place, and make sure the email and mailing address on your file are correct. Biometrics instructions, medical requests and document requests all go to those contact details.

Complete Biometrics and Medicals on Time

If biometrics are required, the instruction letter usually gives you 30 days to attend a collection point. Medical exams must be done by an IRCC panel physician when IRCC asks for one.

Watch Your Account for Requests and Letters

IRCC may ask for more documents, schedule an interview or send a procedural fairness letter. Missing a deadline can lead to refusal. To compare your wait against current averages, use the IRCC processing times tool.

AOR Delays and Missing Acknowledgments

A late AOR usually has an ordinary cause, but it is worth checking before you assume the file is lost.

Checking Your Account and Email

Look in your spam folder, then sign in to your IRCC account, where the AOR appears even if the email was filtered. Confirm that your fee payment went through. IRCC explains on its application status page that a missing AOR can mean the file is still under review or is being returned as incomplete.

When to Contact IRCC

If a sponsorship or paper application has gone well past the usual wait without an AOR or a returned package, send an IRCC web form inquiry with your submission date and tracking details.

Travel While Your Application Is in Process

Whether you can travel after the AOR depends on where you are and what status you hold.

Applicants Outside Canada

An application made from abroad is not affected by your travel, but your passport must stay valid and IRCC must be able to reach you.

Applicants Inside Canada

If you applied to extend a permit before it expired and are staying on maintained status, leaving Canada ends that status. Holders of a valid work permit can usually travel, but re-entry depends on a valid visa where one is required and on the border officer's decision.

If your AOR is late, contains an error, or you are unsure whether travel is safe at your stage, our licensed consultants can review your file and IRCC correspondence. Have your application number and submission confirmation ready when you contact us.

This article is general information, not legal advice, and IRCC procedures and temporary public policies can change. Confirm current requirements on canada.ca before you act; information is current as of November 2026.