Preparing Your Accounting Firm's IT for Tax Season

Start the readiness review in the fall

By the time T1 season opens, there is no room left to fix underlying infrastructure problems without disrupting active work. A readiness review completed in September or October gives enough runway to replace aging hardware, resolve chronic performance issues, and test remote access before the pressure hits.

Capacity: servers, workstations, and storage

• Check disk space and memory headroom on the server hosting CaseWare, Profile, TaxCycle, QuickBooks, or Sage data
• Replace or upgrade workstations that are already struggling before adding a season's worth of extra load
• Confirm backup storage has enough capacity for the volume increase during peak filing weeks
• Verify internet bandwidth is sufficient for the number of staff working simultaneously, especially with cloud-based tax software

Remote access for hybrid and seasonal staff

Almost every firm now has some mix of partners working from home, staff splitting time between office and home, and seasonal preparers who only need access for a few months. Remote access needs to be tested well before the first busy week, not discovered broken on the day a senior preparer tries to log in from home during a snowstorm.

Where CaseWare or Profile need to run centrally for performance or licensing reasons, Azure Virtual Desktop or Remote Desktop Services gives remote staff a consistent, fast environment rather than routing large files over a home internet connection. Firms considering this shift may also want to review cloud versus on-premise accounting software for Ontario firms.

Staffing surges: temporary user accounts done properly

1. Create seasonal staff accounts with an explicit expiry date rather than an open-ended login
2. Scope access to only the folders, applications, and client data the seasonal role actually needs
3. Require MFA on temporary accounts exactly the same as permanent staff, with no exceptions
4. Document who requested each temporary account and for how long, for later cyber-insurance or practice-review evidence
5. Disable, rather than delete, temporary accounts immediately at the end of the season so access history is preserved

A change freeze during peak weeks

Non-urgent changes, such as software upgrades, network reconfiguration, or new system rollouts, should be scheduled well before or well after the peak filing weeks. A freeze window communicated to the whole firm and to the IT provider prevents a routine update from turning into an outage during the busiest days of the year. Security patching and backup verification continue through the freeze; only discretionary, non-critical changes pause.

Security does not pause for tax season

Tax season is also when phishing and business-email-compromise attempts spike, because attackers know firms are moving money and sensitive data faster than usual and staff are too busy to scrutinize every email. MFA, mail filtering, and payment-change verification procedures matter more, not less, during peak weeks. This overlaps closely with the practices covered in cybersecurity for bookkeeping and accounting firms.

A post-season retrospective

Once the deadline passes, a short retrospective on what actually went wrong (a slow server, a confusing new-hire setup, a backup that didn't finish overnight) turns this year's pain into next year's readiness checklist item, rather than repeating the same fire drill annually.

Frequently asked questions