Mega Deduction Calculator

Data network infrastructure: eligible

Data network infrastructure equipment (Class 46) got immediate expensing in Budget 2025 and keeps it under the Mega Deduction.

Examples of networking and data infrastructure

  • switches, routers and firewalls
  • structured cabling and fibre runs inside your premises
  • wireless access points and controllers

Planning tip

Installation labour for cabling is part of the capital cost of the network.

CCA Class 46 · regular rate 30% declining balance · half-year rule normally applies in year one.

Calculate the deduction on networking and data infrastructure

Advanced assumptions

Worked examples (Ontario)

PurchaseOld year-one deductionNew year-one deductionTax reduction, small business rateTax reduction, general rate
$25,000$3,750$25,000$2,800$6,625
$100,000$15,000$100,000$11,200$26,500
$250,000$37,500$250,000$28,000$66,250

Data network infrastructure by province

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

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