What is the UCC on a 4-unit rental property that ended 2019 with a UCC of $115,456 when I spent $105,360 in 2020 renovating two of the units so they could be rented?

The steps to Calculate UCC are below:

1. Start with your UCC in any class and add the amount you spent on a new property in the class.
2. Then, subtract the proceeds you earned from the disposition of property in that class.

For more details, please see  the link below: 

Recapture of Capital Cost Allowance

According what you have done in renovating you need to find  the correct class .

Classes of depreciable property.

Not all property can be applied AII .To know if you can claim see the list on the following link:

What is the capital cost allowance (CCA) on accelerated investment incentive properties and zero-emi...

TurboTax article Accelerated Investment Incentive

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