How Missing Timesheets Can Destroy Your SR&ED Claim

For an early-stage software startup, implementing rigid bureaucratic processes like daily time-tracking feels antithetical to the 'move fast and break things' ethos. However, when you decide to claim hundreds of thousands of dollars in SR&ED tax credits, that mindset must evolve.

A lack of contemporaneous timesheets is the leading cause of heavily downward-adjusted SR&ED claims during CRA audits.

The CRA's Expectation

To claim a developer's salary for SR&ED, you must calculate the percentage of their time spent directly on eligible experimental activities versus routine development, maintenance, or administrative tasks.

The CRA requires that these allocations be based on a "reasonable and verifiable" method. During an audit, they will ask for the source data used to calculate these percentages.

The Risk of End-of-Year Estimations

Many companies attempt to reverse-engineer their time tracking at the end of the fiscal year. They look back and estimate: "Sarah spent about 60% of her year on the new AI engine, so we'll claim 60% of her salary."

The CRA routinely rejects this approach. Human memory is fallible, and end-of-year estimations almost invariably favor the claimant. If an auditor discovers that your allocations are based on retroactive guesses rather than contemporaneous tracking, they have the authority to slash the claimed percentages dramatically, often to zero.

Implementing "Audit-Proof" Timesheets

You do not need an oppressive tracking system, but you do need consistency. The most defensible timesheets share these characteristics:

1. Tracked Frequently: Time should be logged weekly, if not daily.
2. Project-Based: Developers should log time against specific, internally defined projects or epics.
3. Categorized by Eligibility: The tracking system should differentiate between SR&ED eligible work (e.g., "Algorithm R&D") and routine work (e.g., "Bug fixes", "UI Design").
4. Verified by Management: A technical lead should periodically review and approve the timesheets to ensure accuracy.

Integrating Tracking into Engineering Workflows

The key to successful implementation is reducing friction. Many companies successfully integrate SR&ED tracking directly into tools their engineers already use:

• Jira/Linear Plugins: Using time-tracking plugins directly within issue trackers ensures time is logged directly against the relevant user stories and bug reports.
• Dedicated Apps: Platforms like Harvest or Toggl can be configured with specific SR&ED project codes.

The minor annoyance of logging hours weekly is a small price to pay for securing a massive, audit-proof tax refund at the end of the year.