SR&ED Financials: Employees, Contractors, and Proxy Amounts

Financial schedules are where claims succeed or fail

Many founders invest heavily in the technical narrative but treat financial schedules as an accounting afterthought. CRA's financial reviewers reconcile your SR&ED claim against payroll remittances, T4 slips, contractor invoices, and corporate tax returns. Discrepancies—even innocent ones—can delay refunds or trigger audits.

This guide explains how to allocate employee time, handle contractors, choose between overhead methods, and prepare financial documentation that withstands scrutiny.

Eligible expenditure categories

SR&ED expenditures generally fall into these buckets:

Salaries and wages — Eligible salary base for employees directly engaged in, or directly supporting, SR&ED work. This includes bonuses and taxable benefits allocated to eligible activities, but not employer payroll taxes claimed separately through the proxy method.

Contractor payments — Amounts paid to third parties for SR&ED performed on your behalf in Canada, subject to a reduced inclusion rate (currently 80% for arm's-length contractors, with different rules for non-arm's-length parties).

Materials — Materials consumed or transformed in SR&ED. Capital items and general office supplies typically do not qualify.

Overhead proxy — Instead of claiming specific overhead costs, most CCPCs elect the prescribed proxy method, calculating overhead as a percentage of eligible salaries.

Special considerations — Lease costs for equipment used primarily in SR&ED, and certain expenditures for SR&ED performed outside Canada under very limited circumstances.

Employee salary allocation

Determining eligible hours

The foundation of salary claims is hours spent on eligible SR&ED activities. Acceptable allocation methods include:

• Direct timesheets — Engineers log hours to SR&ED project codes. Most defensible when logs are contemporaneous.
• Manager estimates — Supervisors allocate percentages based on role and project involvement. Must be reasonable and documented.
• Hybrid approaches — Direct logging for core R&D staff, reasonable estimates for supporting roles.

CRA expects allocation logic to be consistent year over year and reasonable relative to job duties. A frontend developer at 80% SR&ED may draw questions unless the narrative supports extensive experimental UI performance work.

What salary base includes

The eligible salary base typically includes:

• Regular wages and overtime
• Taxable benefits
• Bonuses tied to eligible work periods

It generally excludes:

• Employer CPP, EI, and workers' compensation (these feed into proxy calculations differently)
• Stock option benefits (complex rules apply)
• Reimbursed expenses

Supporting employees

Employees who directly support SR&ED—such as a DevOps engineer maintaining experimental infrastructure or a technical PM coordinating hypothesis testing—may have partially eligible time. The support must be directly connected to experimental work, not general company operations.

Contractor rules

Contractor costs are attractive for startups using external specialists, but rules are strict:

Arm's-length contractors in Canada — 80% of payments for eligible SR&ED work are included in your claim. You must retain contracts, statements of work, and evidence that work was performed in Canada.

Non-arm's-length contractors — Different inclusion rates and related-party rules apply. Payments to affiliated foreign entities face additional restrictions.

Documentation requirements:

• Written contracts specifying SR&ED scope
• Invoices matched to project milestones or deliverables
• Evidence linking deliverables to experimental work in your technical narrative
• Confirmation of Canadian performance (especially relevant for remote contractors)

Employee vs. contractor classification

Misclassified workers are a common issue. If CRA reclassifies a contractor as an employee (or vice versa), your claim math changes. Ensure HR and legal have correctly classified relationships before claiming.

Proxy vs. traditional overhead

Most claiming corporations use the prescribed proxy method because it simplifies overhead calculation:

Proxy amount = Eligible salary base × Prescribed rate

The prescribed rate has changed over time. Your tax preparer must apply the correct rate for your fiscal year and election status. Proxy replaces specific overhead claims—you generally cannot also claim rent, utilities, and similar costs unless you've elected the traditional method.

Under the traditional method, you claim actual overhead directly attributable to SR&ED. This requires meticulous cost accounting and is uncommon for early-stage startups.

Provincial credits and integration

Federal SR&ED schedules integrate with provincial R&D credits in provinces like Ontario, Quebec, and British Columbia. Provincial forms may require separate salary breakdowns or project allocations. Inconsistencies between federal and provincial filings are a frequent source of provincial review letters.

Coordinate federal and provincial preparation in parallel, not sequentially.

Reconciliation checklist

Before filing, reconcile:

Every dollar on Schedule 31 should trace to a person, contract, or material entry in your books.

Multi-year and amended claims

Filing amended returns or multi-year claims requires consistent project naming and methodology across years. Changing allocation methods without explanation invites questions. If you discover underclaimed SR&ED from prior years, voluntary corrections are possible but require aligned technical and financial restatements.

Common financial mistakes

1. Claiming gross contractor invoices at 100% instead of the allowable inclusion rate

2. Including employer payroll taxes in salary base incorrectly

3. Allocating executive time without evidence of hands-on technical involvement

4. Mismatched project names between technical and financial sections

5. Missing foreign worker implications for time worked outside Canada

6. Ignoring taxable benefit gross-ups in salary calculations

When to engage a CPA financial review

Consider professional financial review when:

• You have more than 15 employees with mixed eligibility
• Contractor payments exceed 30% of total claim
• You are claiming materials or lease costs
• Prior year claims were adjusted by CRA
• You are filing your first claim above $500,000

ELEMONT's CPA financial review validates schedules against your technical project structure, flags reconciliation gaps, and prepares your team for potential CRA financial inquiries.

Practical tips for founders

• Maintain SR&ED project codes in your accounting system, not just your tracker
• Review allocations quarterly—year-end surprises are expensive
• Keep contractor SOWs explicit about experimental deliverables
• Document allocation methodology in a short internal memo signed by leadership
• Run a "mock reconciliation" before your accountant finalizes the return

The bottom line

Financial SR&ED schedules are arithmetic with audit stakes. Solid methodology, contemporaneous records, and cross-functional alignment between engineering and finance teams transform SR&ED from a tax-season scramble into a reliable source of non-dilutive capital.

This article is general information only and does not constitute tax, legal, or accounting advice. Inclusion rates, prescribed proxy rates, and eligibility rules are subject to change and depend on your specific circumstances.