How to fix mistake on the T4A slip? - CRB Canada (CERB Canada)

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If you find an issue on your T4A slip, call the CRA right away to resolve it.

Call the CRA

For any of the following:

your T4A slip shows an incorrect amount
the amounts you repaid before December 31, 2021, are not reflected on your T4A slip
your T4A slip shows incorrect personal information such as SIN or address
you did not apply for COVID-19 benefits, but received a T4A slip

Before you call

Have the following ready, where applicable:

benefit type (CERB, CESB, CRB, CRCB, CRSB)
eligibility period you repaid or applied for
amount and date of any repayment

Telephone number 1-800-959-8281

Dedicated hours
Date	Hours
Monday to Friday	8 am to 8 pm (local time)
Saturday	9 am to 5 pm (local time)
Sunday	Closed

Closed on public holidays

After you’ve called the CRA, we will provide you with either an amended or cancelled T4A slip if a correction to your COVID-19 benefit amounts is required. Keep your amended or cancelled T4A slip for your records.

If you already filed your 2020 tax return – CRA will automatically adjust your return with the updated COVID-19 benefit amounts and no further action is required by you
If you still have to file your 2020 tax return – Use the amended T4A slip to report your COVID-19 benefit amounts on your tax return

source: https://www.canada.ca/en/services/taxes/income-tax/personal-income-tax/covid19-taxes/t4a-report/t4a-issues.html

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