@astral101 , thought we had this discussion earlier ( may be my aging memory fails ) -- please forgive if I am wrong.
(a) Wages of 30K --- is this earned while in Canada ( i.e. tax home Canada ) or while working at a location the USA. If the latter, then you report your wages earned as self-employed -- reported on Schedule-C. Here to ameliorate the effects of double taxation ( and pre the US-Canada Tax Treaty ) you use form 1116 ( under Deductions & Credits tab, near the bottom of the dropdown list ) by selecting Foreign Tax Credit. Make sure you select " General Category". Now enter the net foreign source income from Schedule-C and the taxes you paid to Canada on this income. TubroTax will compute your FTC and transfer to Schedule-3 and onto Form 1040. Note unless your tax home is Canada you CANNOT use Foreign Earned Income Exclusion on form 2555 -- you can only use Foreign Tax credit or Deduction ( with SALT limitation )
(b) Interest/ Dividend --- note that if these are US sourced and also taxed by Canada, your form 1116 will be category "Resourced By Treaty" else ( i.e. if these are foreign sourced), you use category "Passive". In either case you have to make sure that the "foreign Source income" line reflects the income that is being taxed by both US and Canada. The Foreign Tax for this may have to be allocated if the foreign country ( Canada in your case ) does not have a specific rate/ amount on this category of income.
Does this help you or am I confusing the situation more ? If you want a more specific answer ( not the generalities above ) then you need to provide me with specifics of your income, tax home etc.
Will circle back once I hear from you --yes ?
