both of my children are filing for the first time, my son didn't work but is old enough to receive GST. My daughter worked and has a T4. How do I know if the CRA has their birth date on record so I can file online?
You will need to contact the Canada Revenue Agency (CRA) and confirm it with them.
If you are in Canada or the United States, you can call the CRA at 1-800-959-8281. If you are elsewhere, you can call 613-940-8495. This page has more ways to contact the CRA: Contact the Canada Revenue Agency
