IT support for accounting firms that handle sensitive financial data, seasonal capacity spikes, and strict retention requirements. If your IT can’t keep up during tax season, it’s already a problem.
Fusion provides managed IT services for accounting firms, including cybersecurity and Microsoft 365 management. CISSP-certified security leadership aligned to CPA Canada’s cybersecurity guidance and CIS Controls v8.1 alignment help meet compliance and cyber insurance requirements.
Best fit for accounting firms with 10 to 150 employees.
Named one of Canada’s 50 Best Managed IT Companies two years running (2024 & 2025). See our certifications →
“Our previous provider couldn’t tell us whether our client data was actually backed up. When Fusion audited our backup system, they found three years of failed incremental jobs we had no idea about. During T3 and T4 season, we can’t afford that kind of uncertainty.” – David C., CPA, Managing Partner, Accounting Firm, Toronto | “Fusion set up separate access tiers for our bookkeeping staff and our CPA partners, handles all our QuickBooks and Practice Ignition renewals, and enforces MFA across the firm. We went from managing IT to not thinking about it at all.” – Anita K., Office Manager, Accounting & Advisory Firm, Mississauga
What’s included
IT services for accounting firms include cybersecurity for client financial data, secure remote access to tax and practice management software (CCH, CaseWare, QuickBooks), Microsoft 365 administration, encrypted backup and disaster recovery, compliance support for CPA Canada guidelines and provincial privacy laws, and endpoint protection for staff devices. A managed IT provider for accountants ensures audit-ready security and uptime during tax season.
TL;DR
Fusion Computing provides managed IT services for accounting firms and CPA practices across Canada. We handle cybersecurity for client financial data, secure cloud access to practice management and tax software, Microsoft 365 administration, compliance with CPA Canada and provincial privacy regulations, and encrypted backup of financial records. all under a fixed monthly contract.
Fusion covers daily support, Microsoft 365, security, backups, vendor coordination, and the operating priorities behind them. It’s all delivered under CISSP-certified security leadership. You’re not getting a tier-one call centre.
Help desk: Direct access to engineers | 24/7 monitoring and patching: Continuous coverage across endpoints and servers | Microsoft 365 management: Tenant, licensing, Teams, SharePoint, OneDrive | Cybersecurity baseline: MFA, endpoint protection, EDR | Backup and disaster recovery: Verified restores and recovery readiness | Tax season capacity planning: Infrastructure scaled for peak periods | Practice management support: Caseware, CaseWare Cloud, TaxCycle | Client data protection: PIPEDA-aligned privacy controls | Vendor coordination: ISPs, phones, licensing handled for you | Strategic IT planning and reporting: Monthly reports and prioritized roadmap | CPA Canada compliance alignment: Documented controls for audit readiness | New employee onboarding: Device setup, accounts, permissions, day-one ready
Fusion Computing delivers managed IT for accounting firms with a 93% first-contact resolution rate. Services include CRA compliance support, secure client portal management, Microsoft 365 administration, and CISSP-led cybersecurity. Purpose-built for firms handling sensitive financial data.
Why accounting firms switch to Fusion
Accounting firms need managed IT with encrypted cloud hosting, automated backup, endpoint protection, multi-factor authentication, and secure client portals. Compliance with CPA Canada’s data-handling guidelines requires audit-ready access controls and retention policies. A managed service provider experienced in professional services can bundle these into a single fixed-cost agreement.
Accounting firms switch when their current IT support company can’t demonstrate tested backup recovery, documented security controls, or consistent response times during tax season. When client data protection is table stakes, reactive IT support isn’t just inconvenient. It’s a liability you shouldn’t be carrying.
“Accounting firms have a predictable IT crunch every February through April. The ones that plan for it — scaling up cloud resources, adding temporary licenses, pre-staging hardware — survive tax season without the 2 AM panic calls. The ones that don’t call us in March.”
— Mike Pearlstein, CISSP, CEO of Fusion Computing
Client data protection: PIPEDA privacy obligations for client financial data | Tax season reliability: Infrastructure scaled for peak periods | Practice management integration: Caseware, CaseWare Cloud, TaxCycle support | Cyber insurance readiness: Documented controls for policy renewal | One accountable team: No more juggling 3 vendors | Security beyond antivirus: EDR, MDR, access controls, backup testing
Fusion Computing is a CISSP-certified managed service provider that has supported Canadian businesses since 2012. Security operations align to CIS Controls v8.1. Fusion Computing is Canadian-owned, and all client data remains in Canada.
What accounting firm IT support costs
Choosing the right IT company for accountants matters. Managed IT for an accounting firm with 10 to 100 users typically costs between $180 and $250 per user per month. That covers help desk, monitoring, patching, backups, Microsoft 365, and security aligned to CIS Controls v8.1. You’ll know what you’re paying before you sign anything.
$180-$250 per user/month, managed IT for accounting. Included: Help desk + monitoring + patching, Security baseline + Microsoft 365, Backup oversight + vendor coordination, Tax season surge support included. How it works: Co-managed (your IT + Fusion): typically less, Pricing based on scoping assessment, PIPEDA compliance documentation included, No surprise charges – transparent pricing. First step: free 30-minute scoping call – no sales pressure
A Fusion client hit by ransomware was back online by Monday morning with $0 paid and 100% of data restored. For accounting firms, where losing access to client files during filing season could mean missed deadlines and compliance violations, tested recovery isn’t optional. It’s the whole point of the backup strategy.
Ransomware recovery outcome – Sandra M., CEO, Industrial Supply Company. Under 1-hour response on a Friday night. 100% data recovered from air-gapped backups. $0 ransom paid, operational by Monday morning. See: /case-study-ransomware-recovery-back-online-by-monday-morning/
This service is built for Canadian accounting firms, CPA practices, and bookkeeping firms with 10 to 150 users. Our IT services for CPA firms include everything from managed IT for CPAs to full cybersecurity coverage. If your firm handles client financial records, tax filings, and sensitive personal information, and your current IT support can’t prove their security posture, it’s a fit.
Built for accounting firms that need: 10-150 employees, Client data protection (PIPEDA), Tax season reliability and surge capacity, Practice management software support, Cyber insurance documentation, One accountable IT team | Related industries: Finance (/finance/), Construction (/construction/), Manufacturing (/manufacturing/), Healthcare (/managed-it-services-for-healthcare-providers-ensuring-compliance-and-security/), Non-Profit (/non-profit-organizations/), Design & Architecture (/design/)
Book a Consultation About IT for Your Accounting Firm
Accounting firms need IT solutions designed for compliance, security, and confidentiality. Fusion provides HIPAA-ready infrastructure, encrypted backups, and 24/7 monitoring. If you’re not sure where your current setup stands, that’s what the assessment is for.
Fusion works with businesses that have 10+ users and need a managed IT partner, not one-time fixes. If that sounds like your situation, we’d like to hear from you.
Guides & Resources
Fusion provides 25+ IT guides for accounting firms. Resources cover compliance management, data security, backup planning, software integration, cybersecurity frameworks, and operational efficiency for financial services.
Fusion Computing supports over 500 Canadian businesses. including CPA firms, bookkeeping practices, and accounting advisory firms managing tax season, CRA compliance, and PIPEDA obligations. 4.9 stars on Google with 93% first-contact resolution.
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Our previous provider couldn’t tell us whether our client data was actually backed up. When Fusion audited our backup system, they found three years of failed incremental jobs we had no idea about. During T3 and T4 season, we can’t afford that kind of uncertainty.
David C.— CPA, Managing Partner, Accounting Firm, Toronto
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Fusion set up separate access tiers for our bookkeeping staff and our CPA partners, handles all our QuickBooks and Practice Ignition renewals, and enforces MFA across the firm. We went from managing IT to not thinking about it at all.
“Our previous provider couldn’t tell us whether our client data was actually backed up. When Fusion audited our backup system, they found three years of failed incremental jobs we had no idea about. During T3 and T4 season, we can’t afford that kind of uncertainty.”. David C., CPA, Managing Partner, Accounting Firm, Toronto | “Fusion set up separate access tiers for our bookkeeping staff and our CPA partners, handles all our QuickBooks and Practice Ignition renewals, and enforces MFA across the firm. We went from managing IT to not thinking about it at all.”. Anita K., Office Manager, Accounting & Advisory Firm, Mississauga
We (MD Charlton) chose Fusion after evaluating several MSPs, and we’ve been extremely pleased with their performance. Their transparency and responsiveness; both from the service desk and in guiding us through smart, understandable technology decisions- have been top notch. They’ve been a key partner in helping us strengthen our cybersecurity while keeping our business running smoothly.
The Fusion team is incredibly responsive, always going above and beyond to understand DARTS’ needs and deliver innovative solutions on time. The quality of their work is top-notch, and their proactive approach to maintenance ensures our systems run smoothly with minimal downtime. Their staff are very personable and easy to work with. Highly recommend them for any IT needs!
I want to give a shout out to Fusion Computing Limited. They have looked after Idea Factor's Managed Services here in Burlington for 3 + years providing us with excellent in-office and at home IT Support when we need it. Their techs are fabulous and always assist in a timely manner. When the Pandemic struck and we were forced to work from home, Fusion was able to get us up and running quickly. They have worked with us to put an IT Strategy in place that both ensures that our network is secure and guarantees business continuity in any scenario. They have come up with IT Solutions that make our workflow more efficient and cost effective. Kudos to the Fusion Computing IT Team!
Fusion is literally the best IT company to work with PERIOD.
Their staff is very professional, reliable and trustworthy, able to handle absolutely all your IT needs and keeping all your data safe and secure. A must have for any business looking for IT solutions.
Truly a blessing to have them by your side and watching your back while you take care of day to day tasks.
It is refreshing to work with a technology vendor that is reactive in an expedient manner to our needs as a business. Fusion takes the time to learn what your current and future goals are, offers options to help you achieve them, and make you feel like your business is valued. This partnership has allowed us to reinforce the security of all our operations, protect our customers, and increase our overall efficiency. What a great TEAM!
IT Support for Other Industries
Fusion serves managed IT across multiple verticals. Each industry has distinct compliance, security, and operational requirements.
Construction: Managed IT for construction firms, general contractors, and project-driven businesses. (/construction/) | Financial Services: IT support and cybersecurity for financial advisors, brokers, and investment firms. (/finance/) | Manufacturing: Managed IT and cybersecurity for manufacturing plants, production facilities, and industrial operations. (/manufacturing/) | Transport & Logistics: IT support for transport companies, freight operators, and logistics providers. (/transport-logistics/) | Design & Architecture: IT support for architecture firms, engineering consultancies, and design studios. (/design/) | Non-Profit Organizations: Managed IT and cybersecurity for Canadian non-profits with 10 to 150 employees. (/non-profit-organizations/) | CARF IT Readiness: IT planning, documentation, and cybersecurity for CARF-accredited health organizations. (/carf-it-readiness/)
Frequently asked questions about IT for accounting firms
Browse 35+ FAQs addressing tax software integration, compliance standards, client data security, multi-office management, backup strategies, and cybersecurity compliance for accounting businesses.
In-House IT vs. Managed IT for Accounting Firms
Feature
In-House IT
Managed IT (MSP)
Tax season scaling
Hire temps or overtime
Auto-scale cloud + temp licenses
CRA compliance support
Self-managed
Built into service plan
After-hours coverage
None (unless overtime)
24/7 included
Annual cost (25 users)
$120,000–$180,000
$54,000–$75,000
Data backup testing
Ad hoc or never
Quarterly verified restores
What IT support do accounting firms need?
At minimum, accounting firms need reliable help desk support, proactive monitoring and patching, secure backups with tested restores, Microsoft 365 management, endpoint protection, and identity lifecycle management for onboarding and offboarding staff. If you’re handling client financial data, you also need security awareness training, a tested incident response plan, and documented controls for insurer and client audit requirements. It’s not optional if you want to keep your cyber insurance.
How much does managed IT cost for an accounting firm in Canada?
Pricing depends on user count, number of locations, and the scope of support and security services required. Most Canadian accounting firms with 10 to 50 employees pay a predictable monthly fee that’s comparable to the cost of a single mid-level IT hire, but they also get 24/7 monitoring, a full security stack, and an entire support team. You’re not paying for one generalist. You’re getting broader coverage and after-hours support too. Contact Fusion for a scoped estimate based on your firm’s setup.
What cybersecurity threats are most common for accounting firms?
Phishing remains the primary attack vector because attackers know staff are busy and they’ll trust messages that look routine. Cybercriminals impersonate clients, CRA, or software vendors to steal credentials. Ransomware is still the highest-impact threat because it can lock down firm systems during filing season. And it’s not going away. Business email compromise is also increasing across Canadian firms, especially when attackers think they can redirect wire instructions or client payments.
Does our firm need to comply with PIPEDA or provincial private-sector privacy laws?
Many Canadian accounting firms are subject to PIPEDA, Canada's federal private-sector privacy law, when they collect, use, or disclose client personal information in the course of commercial activity. In Alberta, British Columbia, and Quebec, substantially similar provincial private-sector privacy laws may apply instead for in-province activity. If a breach creates a real risk of significant harm, your firm may need to notify the applicable privacy commissioner and affected individuals, and maintain records of all breaches. If you’re unsure where your obligations start, Fusion can help you map the practical controls and documentation your team will need.
Can you support QuickBooks, CaseWare, and cloud-hosted tax software?
Yes. Fusion supports QuickBooks Desktop and Online, CaseWare, Caseware Cloud, TaxPrep, Profile, Sage, and other cloud-hosted Canadian tax applications. We optimize performance, manage licensing, and make sure staff can reach those tools securely whether they’re in the office or working remotely. If it’s running slow during busy season, we’re going to find out why.
What happens if our systems go down during tax season?
Fusion’s managed service includes 24/7 monitoring and a 1-hour response target for critical issues. If a system failure occurs during peak filing season, your issue is prioritized for immediate attention so you’re not waiting behind lower-priority tickets. Our disaster recovery plans are tested regularly, and we maintain encrypted, air-gapped backups that can restore your environment without paying a ransom. The goal is to get people working again fast. We’ve done it before.
How do we prove to clients and insurers that our data is secure?
Fusion aligns security operations to CIS Controls v8.1 and provides regular security reporting, access audits, vulnerability scanning, and a documented security baseline. That means you can show clients and insurers what’s in place instead of making promises you can’t back up. This documentation supports cyber insurance questionnaires, client due diligence requests, and CPA Canada cybersecurity guidance. Our CEO holds the CISSP certification, providing executive-level security leadership for your practice. It’s not outsourced or delegated.
