Thank you for choosing TurboTax. The Canada Revenue Agency (CRA) asks that you choose a code from the generalized list of codes and to choose your code, establish what the main activity of your business is, and find the code that comes closest to it.
TheNAICS systemis a structure under classes of industry. You will decide what class of code you fall under by clicking on the 2-digit code, which generalizes the initial industry, then this will open a new class within the initial one entered, you then continue to click on each entry until you end up with a complete 6-digit code.
If there still is no specific code for exactly the kind of work you do; simply choose the code that matches best. In every classification, there will always be an “other” category, which maybe your best option if none fall under what it is specifically that you do.