If you are using TurboTax Online, click on Tax Home in the left side menu. Then use the Add to your return search to search for “CWB”. Click on CWB Advance Payments to go to the RC210 page.

If you are using TurboTax Desktop in EasyStep Mode, use the Find tool to search for “Advanced”, and then select Advanced Canada Workers Benefit Payments from the list and click Go.

If you are using TurboTax Desktop in Forms Mode, click on the Forms icon in the blue menu bar and search for “RC210”. Select it from the list and click OK.

It's not a new form - it's been around since at least 2022. It's just to report the amount of Advanced Canada workers benefit that you have received. You can read more about it on the Canada Revenue Agency (CRA) website: Canada Workers Benefit