IT Services for Accounting Firms and CPAs in Canada

Accounting and CPA firms manage highly sensitive financial data for hundreds of clients — tax returns, payroll records, financial statements, and audit working papers. Under the Canada Revenue Agency's record-keeping rules, firms must retain books and records for a minimum of six years. Under PIPEDA, they must protect the personal financial information they collect. A ransomware attack that encrypts client files during T1 season is catastrophic. Outsource IT Canada helps accounting firms maintain compliant, resilient IT environments that support the software you depend on and protect the data you're legally obligated to secure.

CRA Data Retention Requirements

The Canada Revenue Agency requires:

• Books and records retained for 6 years from the end of the tax year to which they relate
• T2 corporate returns and supporting documents kept 6 years after filing
• Records must be accessible and in readable form — encrypted backups must be restorable
• Electronic records are acceptable; CRA may request access during audits

Our backup configurations for accounting clients default to 7-year retention (6 years plus one buffer year), with annual restore testing to verify that archived records from past years remain accessible.

Accounting Software We Support

• Sage 50 (Simply Accounting) — multi-user setup, year-end procedures, and data file management
• Sage 300 — server-side configuration, database optimization, and module troubleshooting
• QuickBooks Desktop (Pro, Premier, Enterprise) — hosting, multi-user networking, and company file management
• QuickBooks Online — integration support and user provisioning
• Xero — third-party integration support and practice edition administration
• Caseware Working Papers — file server configuration and audit file management for CPA firms
• TaxCycle and ProFile — T1/T2 tax preparation software support during tax season
• Payworks, Ceridian Dayforce, ADP — payroll platform integration and connectivity support

Tax Season IT Support

February through April is when accounting firms need IT to be absolutely reliable. Our Tax Season Readiness Protocol includes:

• January infrastructure audit: performance testing of servers and workstations under multi-user load
• Software updates completed before February 1st — no updates during tax season without emergency necessity
• Priority escalation SLAs: critical tickets during T1/T2 season receive 1-hour response regardless of plan tier
• Help desk coverage extended during peak CRA filing deadlines (April 30, June 15)

Client Financial Data Protection

Accounting firms hold extensive personal financial information — SINs, banking details, salary data — all governed by PIPEDA. Our security controls for accounting clients:

• Folder-level access controls: staff see only the client files assigned to them
• Encryption at rest for all client data storage (local and cloud)
• Secure file sharing replacing email attachments (Microsoft SharePoint or OneDrive with password-protected sharing)
• Multi-factor authentication on all systems storing client financial data
• Annual PIPEDA risk assessment included in Enterprise plan

Cloud and Hybrid Environments for Accounting Firms

Many accounting firms are transitioning from on-premise server environments (hosting QuickBooks or Sage locally) to hybrid or fully cloud configurations. We manage this transition including:

• Migration of Sage 50/300 or QuickBooks Desktop to hosted cloud environments
• Terminal server or RemoteApp configurations for firms requiring desktop software accessibility for remote staff
• Microsoft 365 configuration with Canadian data residency
• Secure remote access via Always-On VPN or Azure Virtual Desktop

Frequently Asked Questions

Do you support Sage, QuickBooks, and Xero?

Yes. We support Sage 50, Sage 300, QuickBooks Desktop, QuickBooks Online, Xero, Caseware Working Papers, TaxCycle, and ProFile. We handle installation, multi-user configuration, and data migration.

What are the CRA data retention requirements?

CRA requires that books and records be retained for a minimum of 6 years from the end of the tax year. We configure backups with 7-year retention and conduct annual restore tests to verify archived records remain accessible.

Can you provide priority support during tax season?

Yes. Professional and Enterprise plan clients receive priority escalation SLAs during T1/T2 season. We also conduct a January infrastructure review to resolve any issues before the busy season starts.

How do you protect client SINs and financial data?

We implement folder-level access controls, encryption at rest, multi-factor authentication, and secure file sharing to protect sensitive client financial information under PIPEDA.

Related resources

• Managed IT Services — what's included in every plan
• Cloud Solutions — hybrid and cloud migration for accounting software
• PIPEDA Compliance — protecting client personal financial information
• How Much Does IT Support Cost in Canada?
• Get a Free Accounting IT Assessment

Our services for your industry

• Managed IT Services — 24/7 monitoring, help desk, and patch management on a flat monthly fee
• Cybersecurity — EDR, dark web monitoring, phishing simulation, and incident response
• Microsoft 365 — deployment, migration, Copilot, and Canadian data residency
• Cloud Solutions — Azure migration, hybrid cloud, and PIPEDA-compliant Canadian data residency
• AI Applications — Microsoft Copilot deployment, AI workflow automation, and AI governance
• PIPEDA Compliance — privacy impact assessments, breach notification, and consent management