LAT AABS e-File Instructions and Naming Convention

This guide is to assist you with submitting digital documents directly into your Automobile Accident Benefits Service file via e-File. To log into e-File, use the LAT AABS file number as your username (example: 20-003990) and the date of accident/loss as the password. When uploading documents, please select the correct corresponding Document Type shell from the drop-down menu.

Before uploading your digital documents, please ensure you adhere to the following:

Please note from the below that [AR or RR] stands for Applicant Rep. or Respondent Rep. Example: Case Conference Summary from Applicant Rep. = CCS AR.PDF (see below chart)

LAT AABS e-File Document Submission Naming Conventions



LAT AABS e-File Options

3 options are available to e-File with LAT AABS:

To “Start a new AABS Application” or “Respond to an existing AABS Application”, click the corresponding button and follow the instructions.

This image depicts five options for starting or responding to an AABS application. I am or represent an injured person has two available e-filing choices. In the first row you can click the start a new aabs application button or in this first row you can click the respond to an existing aabs application button. I am or represent an insurance company has two available e-filing choices. In the second row click the start a new aabs application button or in the second row click the respond to an existing aabs application button. Any party can submit documents to an existing aabs application. Click the submit documents button.

Overview of the e-File Application Process:

Step 1 & 2:

Step 3:

Step 4:

Step 5:

Step 6:

How to Upload Digital Documents via e-File:

The following instructions will outline the steps to uploaded digital documents. To begin your e-File session, select the “Submit Documents” button:

This image depicts the submit documents to an existing aabs application option. To submit documents to an existing aabs application, click on the submit documents button.

Step 1: Confirm File Number and Accident Date

To log into e-File, you will need:

This image depicts two mandatory fields that must be entered to access an existing aabs application. The tribunal file number is a mandatory field. Type the first two digits of the tribunal file number and press tab. Type the next six digits of the tribunal file number and press tab. Click on the question mark to the right of the tribunal file number field for assistance with entering the tribunal file number.  The date of the accident is a mandatory field. Click on the calendar to the right of the date of accident field and select the date of the accident.  Click on the question mark to the right of the date of accident field for assistance with entering the date.

Step 2: General Information

Fill in “Party Identification” (*mandatory fields).

Note: To update the “Mailing Address” field you will need to select the “Add/Edit” button and perform a Canada Post postal code search and confirmation.

This image depicts the option to add or update the mailing address field. The mailing address is a mandatory field. Office is used for law firms.  Click on the add-edit button if you wish to change or update the mailing address.

Enter your postal code or your law firm's and click “Search”, then select the correct address from the search results.

Enter the address number into the “Street Number” field (the remaining “Address Details” fields will prepopulate from your search result selection). Click “Continue”.

This image depicts a search for the mailing address by postal code field and the enter street number field for addresses that may not be found through a canada post search.  Country Canada is a default mandatory field. Postal code is mandatory field.  Enter the mailing address postal code and press tab.  Click the search button to perform a postal code lookup through canada post. Select the radio button beside the applicable address from the list below. If the mailing address is not listed in the list below click on the address not listed button. Address details are presented below the address not listed button.

Step 3: Documents

Click the “Add Document” button and choose the document type from the drop down “Select Document Type” menu. When uploading documents, please select the correct corresponding Document Type shell from the drop-down menu.

This image depicts the Select Document Menu displaying list of document types.

Click the “Browse” button and select the document to be uploaded to the file. To upload additional documents, click the “Add document” button and follow the same steps outlined above.

This image depicts the upload document function and the progress of your uploaded documents. Step three documents. Upload documents. All attachments must not exceed 35MB and they must be in one of the following file formats of word, excel, pdf, jpeg or tiff. Click the add document button. Select document type from the available menu. Click the cancel link to stop uploading document. Click the previous link to return to the previous step. Click the continue button when you have finished uploading all of your documents.

Selecting the correct Document Type from the drop down is important because the documents you upload will be listed under the document type you selected in our case management system and will assist the Member when reviewing your file. Please ensure you use the established naming convention for the files you upload.

As you add documents, the combined file size total will be displayed up to a total of 35 MB.

Once you have finished uploading your documents, click the “Continue” button. Confirm and complete the mandatory fields and certify that within 5 days, you will serve a copy of the e-Filed documents to all other parties and will serve the Tribunal with a completed Certificate of Service as proof of service of the documents.

Blank ’Certificate of Service’ forms are available on the Tribunal’s website at: https://tribunalsontario.ca/lat/automobile-accident-benefits-service/forms/

After clicking the “Submit” button your documents will be submitted directly into your file. Once submitted, you can download and save a PDF of the “Document Submission – Confirmation” form called “eFile_Sub_Receipt”. This document will list the details of the person that performed the e-File document submission session and the details of what files were uploaded to the file.

If you have any questions or require support, please contact the Tribunal for assistance at LATRegistrar@ontario.ca.