Mega Deduction Calculator

The Mega Deduction for law, accounting and consulting firms

Professional corporations usually invest in computers, software and office fit-out. All three now qualify in full.

Three things to know

  • Workstations, servers and networking qualify
  • Practice management and document software qualify
  • Office furniture and fit-out equipment qualify

A typical $40,000 purchase

Advanced assumptions

What law, accounting and consulting firms typically buy

AssetClassStatusOld year-one deduction on $40,000Tax reduction (SB / general, Ontario)
Computer equipment50Eligible$11,000$4,480 / $10,600
Software12 / 10Eligible$20,000$4,480 / $10,600
General equipment, tools and furniture8Eligible$4,000$4,480 / $10,600
Data network infrastructure46Eligible$6,000$4,480 / $10,600

Free: the Year-End Purchase Checklist (PDF)

One page. What qualifies, what does not, the 'available for use' trap, and the seven questions to ask your accountant before you buy. No spam, unsubscribe any time.

Year-end planning kit

The Mega Deduction Year-End Playbook

Everything you need to walk into your accountant's office with a plan instead of a question. Built for owner-managed Canadian businesses that expect a profitable 2026.

  • Excel purchase planner with every province's rates and every CCA class pre-loaded. Model up to 12 purchases, see the year-one deduction, tax reduction and 10-year comparison for each.
  • The 41-page Playbook (PDF): eligibility by asset class, the exclusions, 'available for use' rules, financing vs. leasing, recapture risk, CCPC vs. sole proprietor, and worked examples for 12 industries.
  • Accountant brief template (Word): a one-page memo you fill in and send so your accountant can confirm the plan in one email instead of a meeting.
  • 30-day action plan for purchases that must be delivered and installed before your fiscal year-end.

$97$47 CAD one-time, instant download

Get the Playbook

Secure checkout by Stripe. Files delivered immediately after payment. Not tax advice; every plan should be confirmed by your accountant.