Adjusting allowable portion - more than one motor vehicle with CCA

If you are claiming capital cost allowance (CCA) on more than one business vehicle, you might have to calculate the allowable portion of CCA by hand. This would happen if you used one or more of the vehicles for personal use.

The formula for calculating the allowable portion (in the case of 2 vehicles) is (E1×R1 + E2×R2) ÷ T
Where: E = CCA at the end of year (before taking business use into account)
  R = ratio of business use to total use
  T = Sum of end of year CCA for all vehicles (before taking business use into account)

How do I find my end of year CCA?

How do I find my end of year CCA?

Example

Susan uses 2 vehicles for her business that still have undeducted CCA.
  CCA end of year (E) Business Use (R)
First Vehicle 690.00 310 km / 840 km = 0.369
Second Vehicle 1956.00 1100 km / 1282 km = 0.858
  Total end of year CCA (T) = 2646  
She calculates her allowable ratio as:
  (E1×R1 + E2×R2) / T
= ( 690.00×0.369  +  1956×0.858 ) ÷ 2646
= ( 254.61  +  1678.25 ) ÷ 2646
= ( 1932.86 )  ÷ 2646
= 0.730 (or 73%)
Related information
CCA - How to complete the form