Work in Alberta but live in british columbia how does income tax filing work for British Columbia taxes

If you receive a T4, you will be able to specify the province where it was earned. 

As per the provincial taxes on your tax return, you will asked where did you reside on December 1, 2014, this is what determine the provincial tax.  This question is there absolutely every year.

Sally, as usual is correct.  Where it may get interesting is that the provincial tax rules where you are employed, determine how much tax to withhold from your pay.  In this instance, you may have to pay a bit less tax when your return is complete, depending on your net income.  Alberta has a flat 10% tax rate, while BC rates are as follows:

    5.06% on the first $37,568 of taxable income,
    7.7% on the next $37,570,
    10.5% on the next $11,130,
    12.29% on the next $18,486,
    14.7% on the amount over $104,754