SR&ED claims: DIY vs consultant vs software (2026)

DIY, large consultancy, boutique consultant, software platform, or your CPA. Five ways to file a Canadian SR&ED claim compared on fee model, narrative quality, and audit risk. Fees in CAD.

You did the R&D. Your team spent months solving a genuinely hard technical problem, hit dead ends, rebuilt things, and shipped something that did not exist before. Canada’s SR&ED program is meant to give you money back for that work. The question is who actually prepares the claim: you, a consultant, your CPA, or a piece of software.

This is a real fork in the road because the wrong choice can cost you a five figure chunk of your refund or, worse, get a legitimate claim knocked back. Here is how the five common paths compare in 2026, with fee models in CAD and a plain explanation of the parts that trip people up.

A quick but important note up front. This is general information, not tax advice. SR&ED rules, rates, and thresholds change, so verify current CRA rules and rates before you file, and finalise any claim with an SR&ED specialist or a CPA.

The 30 second verdict

• Small, obviously eligible claim and you have a strong technical writer in house: do it yourself with CRA’s guidance and the self assessment tool. Keep the whole refund.
• Large or first time claim, nobody internally has time, and you want it handled: a consultant. Expect a contingency fee, commonly about 15 to 30 percent of the refund.
• You want senior attention and you build software or hardware: a boutique SR&ED consultant. Often a lower contingency or a fixed fee, and the senior people usually do the work.
• You claim every year and want to drive down cost per claim: SR&ED software that captures evidence across the year, ideally paired with a light review.
• Your CPA already files your T2 and knows your books: have them prepare it, and bolt on a technical specialist for the narrative if SR&ED is outside their wheelhouse.

What SR&ED actually is, briefly

SR&ED is the Scientific Research and Experimental Development tax incentive, administered by the Canada Revenue Agency. It is the largest single source of federal support for R&D in Canada, and it works through the tax system rather than as a grant you apply for separately.

You claim it on your corporate tax return using Form T661, the SR&ED expenditures claim, filed alongside your T2. The credit comes back as an Investment Tax Credit. For a Canadian controlled private corporation (a CCPC), a portion of that credit is currently refundable, which means you can receive cash even if you owe little or no tax. That refundable feature is what makes SR&ED so valuable to early stage startups that are not yet profitable.

The headline federal rate that most founders have heard is an enhanced refundable credit of currently 35 percent on the first 3 million dollars of qualified SR&ED expenditures for an eligible CCPC, with a lower rate above that threshold and for other corporation types. Treat those figures as a starting point, not gospel. The threshold, the rate, and the eligibility conditions have been adjusted before and can be again, so verify current CRA rules and rates for your filing year. Most provinces also offer their own SR&ED top-ups that stack on the federal credit, and those vary by province, so your effective return depends on where you operate.

The part everyone underestimates: the technical narrative

If a claim gets challenged, it is almost always about the technical narrative, not the math.

The narrative is the set of project descriptions on Form T661 that justify why the work qualifies. CRA essentially wants three things spelled out for each project:

1. The technological uncertainty. What did you not know how to do, where the answer was not obvious to a competent professional in the field? Routine work does not count, even if it was hard or expensive.
2. The work you actually did. The systematic investigation: the hypotheses, the experiments, the iterations, the things you tried that failed and what you learned.
3. The technological advancement you were seeking. What new knowledge or capability were you trying to create, beyond standard practice?

The trap is that great engineering does not automatically read as eligible SR&ED. Building a slick feature on well understood technology is not eligible just because it was difficult. Conversely, plenty of genuinely eligible work gets undersold because the writer described the product instead of the uncertainty. Writing this well, in CRA’s language, is the single biggest reason teams pay for help.

Fee models compared (CAD, 2026)

These are general market patterns, not quotes, and every firm prices differently. Always get the fee model in writing, including what happens if the claim is reduced on review and whether the agreement renews automatically. On a large refund, the difference between a 15 percent and a 30 percent contingency is real money, so it is worth negotiating or comparing against a fixed fee.

How to think about contingency vs fixed fee

Contingency feels safe because you only pay if you get a refund. That is genuinely attractive for a first claim when you are unsure you qualify at all. The catch is that the percentage is taken off the gross refund every year you stay with the firm, so on a large or recurring claim it can quietly become the most expensive option.

A fixed fee or hourly arrangement caps your cost, which works in your favour once your claim is sizeable or once you understand your own eligibility well enough to know the refund is coming. Many mature claimants start on contingency for claim one, then move to a fixed fee, software, or their CPA once the process is familiar and the documentation habit is in place.

Decision tree

Walk it top to bottom and stop at the first match.

1. Is your eligible spend small, and do you have someone who can write a clear, honest technical narrative in CRA’s terms? Do it yourself. Use the CRA self assessment tool and request a pre claim consultation.
2. Is this your first claim, or is the refund large, and does nobody internally have time to run it? Bring in a consultant. If you want senior attention and you are a software or hardware shop, start with a boutique before a large firm.
3. Do you claim every year and want to lower cost per claim over time? Put software in place to capture evidence across the year, and pair it with a review so the narrative quality holds up.
4. Does your existing CPA already file your T2 and know your books well? Have them prepare it, and add a technical specialist for the narrative if SR&ED is not their core skill.
5. Still unsure whether you even qualify? Start with a low cost eligibility check or CRA’s free pre claim consultation before committing to any paid model.

Documentation is the thing that actually wins claims

Whichever path you pick, the claims that survive review are the ones backed by contemporaneous evidence. That means notes, commit histories, design documents, test results, and time records created while the work was happening, not reconstructed months later.

This is the strongest argument for software and for building the habit early. A consultant can write a beautiful narrative, but if CRA asks for support and you have nothing from the time the work was done, the claim is exposed. Capturing evidence as you go makes every future claim cheaper and safer, regardless of who prepares it.

A note on audit risk

CRA reviews a portion of SR&ED claims, and selection is not a sign you did anything wrong. The point is to be ready. If you cannot defend the eligibility and the costing, you do not want to discover that during a review.

This is where a hands on consultant or a CPA with real SR&ED experience earns their fee, because they can represent you and speak CRA’s language. If you went the DIY or software route on a sizeable claim, it is worth having a specialist on call in case a review lands. Be conservative on what you include. A slightly smaller claim you can fully defend beats an aggressive one you cannot.

Where Build Bench fits

We built sred.buildbench.ca for the exact moment described above: you have done eligible work, the technical narrative is the scary part, and you want a strong draft without paying a large slice of your refund to a contingency firm before you even know what you have.

It is a drafting assistant, and we want to be plain about what that means. Here is what it does, in CAD:

• $99 eligibility scan. A structured read on whether your work looks like it fits SR&ED’s uncertainty, systematic investigation, and advancement tests, so you can decide whether to go further.
• $499 technical narrative draft. A review ready draft of your Form T661 project descriptions, written in CRA’s framing, based on what you tell us about the work, the uncertainties, and the advancement you sought.
• $1,999 full filing package (CAD). A complete, review ready package pulling the narrative and supporting structure together for filing.

Now the important part. Build Bench produces review ready output that you finalise with an SR&ED specialist or a CPA before you file. It is a drafting tool, not a tax advisor, and it does not and cannot guarantee that CRA will approve your claim or that any particular amount will be refundable. The eligibility judgement, the final costing, and the filing decision belong with a qualified professional and with you.

Used that way, it slots in well next to the paths above. It can give a DIY team a far stronger narrative than a first attempt, give software users a better written project description, and give a CPA led claim a ready technical draft so their hours go to the tax mechanics rather than the writing. Whatever you choose, verify current CRA rules and rates for your filing year, and have a specialist sign off before it goes in.