Reviewed by Logan Hanson, BSc, CPA. Last verified against CRA guidance on July 29, 2026.
An SR&ED tax service is a specialist that prepares and files your Scientific Research and Experimental Development claim, so you recover the R&D tax credits you are entitled to. It combines two skill sets most startups do not have in-house: the technical writing to describe your work in CRA terms, and the tax expertise to calculate and file the claim correctly.
At its best, a service is not a once-a-year form-filler. It is an ongoing partner that captures your eligible work as it happens and stands behind the claim if the CRA asks questions. Our overview of what an SR&ED tax credit service is covers the basics in more depth.
Startups get more out of a good service than almost anyone, because they have the most eligible work and the least time or experience to claim it well. The support shows up in five ways.
Our guide on how SR&ED services improve refund claims digs into each of these.
Behind the pitch, the real work breaks into a handful of concrete steps.
They interview your technical team and review your projects to identify everything that qualifies, not just the obvious flagship.
They translate your engineering work into the language of technological uncertainty, systematic investigation, and advancement that the CRA expects.
They compile eligible salaries, 80% of arm’s-length Canadian contractor costs, materials, and overhead into a defensible claim amount.
They complete Form T661, file with your return, and respond if the CRA reviews the claim, which for refundable claims selected for review can take up to 180 days from a complete claim.
The best services keep records flowing throughout the year, so next year’s claim is stronger and faster to assemble.
There is no single right answer. Here is the honest trade-off.
Doing it yourself pros: no fee, full control, and fine for a small, clear-cut claim if you have the time.
Doing it yourself cons: real risk of under-claiming, a weak technical narrative, and facing a review alone.
Using a service pros: usually a larger, better-documented claim, less founder time spent, and audit defense included.
Using a service cons: a fee, and on a very small claim the fee may not be worth it.
Our guide on in-house versus consultant walks through where the line usually falls.
Most services charge a contingency fee, taking a percentage of your refund, typically between 10% and 25%, repeated every year you claim. A smaller group charges a flat fee instead.
The flat-fee model usually costs less over the life of a claim, because the percentage does not compound as your refunds grow. SRED.ca is, as far as we know, the only SR&ED provider in Canada that publishes its flat-fee pricing openly on its website.
Suppose a startup files its own claim and captures $200,000 of eligible costs, for roughly $70,000 back at the 35% federal refundable rate. A service reviews the same year and finds another $180,000 of eligible salary and contractor work the founder had dismissed as routine.
That is an extra $63,000 in federal refund, before provincial credits. Even after a reasonable fee, the startup comes out well ahead, and the claim is better documented against a review. This is the core case for a service: it pays for itself when it recovers more than it costs, which on a real R&D program it usually does.
Before you sign with any provider, check for these.
SRED.ca was built around the things startups actually need from a service: clarity on cost, help finding every eligible dollar, and someone who stays for the review.
We charge a transparent flat fee, billed monthly and published openly. We track your projects year-round, and we back the work with Canada’s only SR&ED guarantee: any claim we prepare start to finish is guaranteed to be approved for at least 75% of its filed value, or our fees are waived, audit defense included. If there is no eligible work in your year, you don’t pay.
The point of an SR&ED tax service is not to fill out a form. It is to recover more of the R&D credits you have already earned, protect them through a review, and give a busy founding team its time back. A good one does all three and still leaves you ahead.
If you want to see what a service could recover for your startup this year, book a free consultation and we will give you an honest read.
It identifies your eligible R&D, writes the technical narrative to CRA standards, calculates eligible costs, files Form T661 with your return, and defends the claim if the CRA reviews it. The best services also track documentation year-round.
It depends on claim size. A service pays for itself when it recovers more refund, and reduces review risk, than you would capture alone. For a very small claim the fee may not be worth it, which is why honest providers will tell you when to file yourself.
Most charge a contingency fee of roughly 10% to 25% of your refund each year. A smaller group, including SRED.ca, charges a published flat fee, which usually costs less over the life of a claim.
Good ones do. Audit defense should be part of the service, not a surprise extra. Ask directly whether review support is included before you sign, because facing a CRA review alone is exactly what startups want to avoid.
Some are approved financing partners that let you access your expected refund sooner, converting a future refund into present-day runway. The financing is repaid once the CRA pays out.
This article is general information, not tax advice. Tax figures depend on your corporation type, province, and taxation year.
Do you have a SRED question? Planning for the future or perhaps you want to know how much your claim might be? Don’t worry, our CPA is always ready to answer any question. Get a SRED expert in your corner.
Have a question? We’d love to help. If you don’t have a SR&ED expert in your corner, doesn’t it make sense to have one?
