It keeps saying I am using an invalid industry code for my business and it doesn't matter what code I use from the software I keep getting the error. Help?

Could you please confirm if you are preparing a 2022 return or a return for a previous year?

It might be possible that you have used old industry code, please visit the NAICS website to find out the latest code based on your business type: https://www23.statcan.gc.ca/imdb/p3VD.pl?Function=getVD&TVD=1369825

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