Please make sure when entering your social insurance numbers that you are not using any spaces or special characters. The SIN should be 9 numbers, no spaces, like this: 123456789. Also, make sure that you are putting the right SIN for the right spouse. Before correcting the SIN make sure to delete all of the area by highlighting it and deleting it.

For more information please see our TurboTax FAQ: Error message: Invalid characters when trying to use NETFILE

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