Introduction

For dental practices, equipment represents one of the largest capital expenditures — dental chairs, imaging systems, sterilisation equipment, CAD/CAM milling units, and the technology infrastructure supporting a modern practice. Understanding how these purchases are treated for income tax purposes affects both the cost of acquisition and the annual tax position of the practice.

Capital Cost Allowance: The Framework

Significant equipment purchases are not fully deductible in the year of purchase. Instead, they are capitalised on the balance sheet and deducted over time through capital cost allowance (CCA) — a system of depreciation rates set by the CRA that applies based on the class of the asset.

The CCA system assigns assets to classes based on their nature. The rate applied to each class determines how quickly the cost can be deducted for tax purposes. A higher rate means faster deduction; a lower rate means the cost is recovered more slowly.

Relevant CCA Classes for Dental Equipment

Class 8 (20% declining balance): The most common class for dental equipment that does not fit a more specific category. Chairs, cabinetry, sterilisers, handpieces, and similar clinical equipment generally fall into Class 8. The declining balance method means 20% of the remaining undepreciated balance is deducted each year.

Class 10 (30% declining balance): Applies to certain types of general-purpose electronic and computer-controlled equipment. Dental imaging systems, certain scanning equipment, and similar technology-integrated devices may fall here depending on their classification.

Class 50 (55% declining balance): Applies to general-purpose computer hardware and system software. Practice management computers, servers, and associated hardware typically fall into Class 50.

Class 12 (100% in year of acquisition, subject to the half-year rule): Applies to small tools costing less than $500, certain video cassette tapes, linens, and similar items. Some smaller dental instruments may qualify.

Class 14.1 (5% declining balance): Applies to certain intangible property and goodwill. Not typically relevant for equipment purchases, but relevant when a dental practice acquires another practice and goodwill is involved.

The Immediate Expensing Incentive

For eligible depreciable property acquired after January 1, 2022, qualifying CCPCs were able to immediately expense up to $1.5 million of eligible capital property in the year of acquisition. For dental corporations that are eligible CCPCs, this incentive — where still applicable to specific purchases — can result in a full deduction in the year of purchase rather than gradual deductions over many years.

Eligibility, phase-out rules, and the definition of "eligible property" for this incentive should be confirmed with a CPA for each acquisition, as the rules have specific conditions and the incentive is time-limited.

The Half-Year Rule

In the year a Class 8 or Class 10 asset is acquired, only half of the normal CCA can be claimed, regardless of when in the year the asset was purchased. This is the "half-year rule" (or 50% rule). It reduces the deduction in the first year to prevent the full annual rate from being claimed regardless of when the asset entered service.

Example: A dental chair costing $80,000 is acquired and placed in Class 8. Normally, 20% of $80,000 = $16,000 would be deductible. With the half-year rule, only $8,000 is deductible in the year of acquisition.

Timing Equipment Purchases

Because the half-year rule applies to the year of acquisition regardless of month, there is no tax advantage to purchasing a Class 8 asset in January versus November of the same fiscal year — both result in the same first-year CCA claim. However, acquiring equipment before the fiscal year end ensures at least one year's CCA is claimed before the next fiscal year opens, rather than losing a year of deductions.

For significant equipment purchases, reviewing the timing relative to the fiscal year end — and any available incentives — before finalising the purchase decision is worth a conversation with a CPA.

HST on Equipment: Input Tax Credits

Equipment purchased for use in a dental practice is an input that may qualify for an input tax credit (ITC) to the extent the equipment is used in taxable commercial activities. For a dental practice with both exempt (clinical services) and taxable (cosmetic procedures, product sales) supplies, the ITC on equipment is proportional to the taxable use.

A practice that is fully exempt earns no ITCs on equipment purchases, meaning HST paid on dental chairs, imaging equipment, and supplies is a genuine, non-recoverable cost.

When to Speak With a CPA

Equipment acquisition decisions for a dental practice benefit from CPA input before the purchase — particularly for high-value acquisitions where incentives, CCA class determination, and HST treatment together affect the after-tax cost. A purchase made without this review may miss available deductions or create unexpected compliance obligations.

Rotaru CPA works with incorporated dental practices on equipment acquisition planning and corporate tax compliance. Book a consultation to review an upcoming acquisition.