I currently refurbish computers as a side volunteering thing, and all refurbished computers go to charity. I will receive tax receipts for these donations. The thing is though, I am still <18 and making very low income on a part time job. My total annual income will be roughly $5K Canadian. I'm pretty sure this is under the income tax bracket, which makes me ineligible for income tax.
Does this nullify my tax receipts? I assume they work as a subtraction against your income tax, though I don't pay income tax so I'm confused...