My husband is a mechanic and works for a company, he buys tools to work, how can I deduct the expenses for these tools he buys for work?

Self-employed

This TurboTax FAQ tells you where you can claim Employment Expenses in TurboTax Online:

https://turbotax.community.intuit.ca/turbotax-support/en-ca/help-article/self-employment-taxes/claim...

This TurboTax FAQ tells you where you can claim Employment Expenses in TurboTax CD/Download: https://turbotax.community.intuit.ca/turbotax-support/en-ca/help-article/manage-expenses/claim-emplo...