Key takeaway: SR&ED for startups works the same way it works for any Canadian-controlled private corporation: a two-part eligibility test, an 18-month filing deadline, and a claim built on T661 plus Schedule T2SCH31. What's different for a first-time claimant is the risk of under-claiming out of caution or missing the window entirely because nobody owned the deadline. A CCPC spending up to $6 million a year on qualifying work can recover up to $2.1 million in refundable credits — cash back even with zero tax owing — and the CRA now lets first-timers get an eligibility read before they've spent a dollar, through pre-claim approval.
Most startups hear about SR&ED from a peer, an investor, or an accountant mentioning it in passing, usually a year or two after the eligible work happened. By then the founder is doing two things at once: figuring out whether any of it qualifies, and racing a deadline they didn't know existed.
SR&ED for startups isn't a different program with different rules. It's the same federal SR&ED tax incentive every Canadian company uses, applied to a company that's never filed before. That first-time gap is where most of the risk lives — not in the rules themselves. Here's how to walk through it once, correctly, instead of learning the hard parts by missing them.
What SR&ED actually is, for a company that's never claimed it
SR&ED (Scientific Research and Experimental Development) is a federal tax incentive that gives you an investment tax credit for eligible R&D spending — salaries, contractors, materials, and a portion of overhead. For a Canadian-controlled private corporation (CCPC), the enhanced rate is 35% refundable on qualifying expenditures, up to a $6 million annual limit as of the Budget 2025 changes that became law when Bill C-15 received royal assent on March 26, 2026. That's up to $2.1 million a year in credits at the full limit, and the 35%-rate credit on current expenditures is 100% refundable up to that limit — meaning you get cash back even if your startup owes no tax, which describes most pre-revenue and early-revenue companies.
Above the CCPC enhanced-rate limit, or for companies that don't qualify as CCPCs, the basic rate is 15%, and qualifying corporations can get 40% of that refunded. Either way, this is a cash program, not just a tax-reduction program — which is exactly why it matters to a company burning runway rather than paying tax.
The federal number is also usually not the whole story. Provincial R&D credits stack on top for companies with a presence in Ontario (8% refundable, up to $240K — see our Ontario breakdown), British Columbia (10% refundable up to the federal expenditure limit — BC breakdown), Quebec (refundable at 30% on the first $1M above an exclusion threshold, 20% above that — Quebec breakdown), or Alberta (8–20% via the Innovation Employment Grant — Alberta breakdown). The full mechanics of how federal and provincial credits interact are in our SR&ED guide.
The eligibility test: two questions, not an industry checklist
The single biggest reason startups under-claim or skip SR&ED entirely is assuming it's for labs, not for a five-person team shipping a product. It isn't industry-specific. Per the CRA's eligibility policy, work qualifies when it satisfies two conditions together:
- A "why": the work is advancing scientific knowledge or achieving technological advancement, and there's real uncertainty in the existing knowledge base — you couldn't get the answer from a manual or a senior engineer's experience alone.
- A "how": the work is a systematic investigation, done by experiment or analysis — a hypothesis, a test, a measured result, an iteration. Not "we tried things until it worked and moved on."
Failure is explicitly not disqualifying. If your team spent three months on an approach that didn't pan out, and the process was systematic, that work can still qualify — often it's some of the cleanest SR&ED evidence a company has, because the uncertainty was real and documented. We covered what specifically counts, and what's excluded, in more depth separately.
For a software startup specifically, the CRA's own statistics back up that the bar is reachable: software development took 42.6% of all SR&ED credits allowed in fiscal year 2025–26, the single largest share of any sector. If you're building software and wondering whether the program is "really" for companies like yours, the data says you're the base case, not the edge case. Our breakdown for software companies walks through common eligible and non-eligible engineering scenarios.
What a first SR&ED claim actually requires
A complete claim, per the CRA's submission guidance, has two core pieces:
- Form T661 (SR&ED Expenditures Claim, current "(26)" version) — your project descriptions and expenditure breakdown. This is where the technical narrative lives.
- Schedule T2SCH31 for corporations (or Form T2038(IND) if you're claiming as an individual) — where you actually claim the investment tax credit.
Depending on your situation, you may also need T1145, T1146, T1174, or T1263. You're responsible for the claim being complete, accurate, and supported by evidence, whether you prepared it yourself or paid someone to.
For a first-time claimant, the practical work is mostly upstream of the forms: identifying which projects had real technical uncertainty, reconstructing (or, better, already having) a timeline of what was tried and why, and totalling the eligible salary, contractor, and material costs against that work. The 55% prescribed proxy amount lets you claim overhead as a percentage of your SR&ED salary base instead of itemizing every expense, which is usually the simpler path for a startup with a lean finance function.
The deadline you need to know before anything else
This is the one rule with zero flexibility, and it's the one first-time claimants are most likely to discover too late. Your SR&ED reporting deadline is 12 months after your T2 corporate return's due date, and the T2 is due 6 months after your fiscal year end — so the wall is 18 months after year end. Miss it and the CRA "cannot by law allow any additional time," per the Filing Requirements Policy and Income Tax Act subsection 220(2.2). The credits for that year are gone permanently — not delayed, not reduced.
The practical implication for a startup filing for the first time: at any given moment, you likely have two fiscal years still open — the one you're about to file taxes for, and the prior one if you haven't touched it yet. Figure out both dates today. We go deeper on the mechanics, including a full deadline table by fiscal year end, in our filing deadline guide.
Pre-claim approval: a lower-risk way to take a first swing
Since April 1, 2026, the CRA has offered pre-claim approval, an optional process built for exactly this situation: a company that isn't sure whether its planned work will qualify. You apply through My Business Account before or during the work, and the CRA gives you a determination within 8 weeks. It's open to CCPCs, other Canadian corporations, and partnerships with gross business income under $25 million, in good standing, for up to 3 projects that haven't been claimed in a prior year or involved in litigation. An approval holds for up to 3 years, and a claim made up only of pre-approved projects gets an accelerated 90-day expenditure-only review instead of a full technical review.
For a startup about to spend a year building something genuinely uncertain, this is a meaningfully different risk profile than the old approach of "build it, then find out at filing time whether it counted." We wrote a full walkthrough of how pre-claim approval works if you want the details before applying.
A first-claim checklist, start to finish
Stripped of jargon, filing a first SR&ED claim is five steps, in this order:
- Find your fiscal year end and count 18 months forward. That's your wall. Write the date down somewhere you'll actually see it, not just in an accountant's calendar you don't have access to.
- Walk your last 12 months of engineering work against the two-part test. Look for the projects where the team didn't know the answer going in and had to test their way to one — new algorithms, architecture that had to be redesigned mid-project, integrations that broke in ways the documentation didn't predict. Ignore the projects that were mostly following a known playbook.
- Total the eligible costs against those specific projects. Salaries for the people who did the technical work, eligible contractor costs for R&D performed in Canada, materials consumed in the process, and overhead via the 55% proxy amount instead of itemizing every line.
- Decide whether to apply for pre-claim approval first. If your highest-uncertainty work is still ahead of you this fiscal year, an 8-week determination before you spend the money is close to free risk reduction. If the work already happened, skip straight to the claim.
- Assemble T661 with the project narratives, attach Schedule T2SCH31, and file with your T2 — not at month 17. Filing alongside your tax return instead of racing the deadline turns 18 months of buffer into your safety margin instead of your finish line.
None of these steps require a specialist to start. What tends to determine the quality of a first claim is whether step 2 is done honestly — neither inflating routine engineering into "research" nor underselling real uncertainty because it doesn't feel like a lab experiment.
What to actually expect once you file
Founders filing for the first time tend to assume the worst about both approval odds and wait times, usually because "SR&ED audit horror stories" travel further than routine approvals. The CRA's own numbers say otherwise. In fiscal year 2025–26, of processed claims, 90% were accepted exactly as filed, 6% after some modification, and 4% were denied. On timing, refundable claims accepted as filed are targeted for 60 calendar days and refundable claims selected for review for 180 days, under the program's service standards — and the CRA hit those targets 95% and 92.5% of the time respectively last year. We break down the full approval-rate picture, including what tends to trigger the 4% denial bucket, in our SR&ED approval rate analysis.
None of that is a guarantee for your specific claim. It is a reason not to let fear of an audit talk you out of filing work that genuinely meets the two-part test.
Who should actually wait, or skip a year
SR&ED is not universally worth the effort for every startup in every year, and pretending otherwise doesn't serve you. A few honest situations where filing might not be worth it yet:
- Your work this year was mostly integration, configuration, or using existing tools as documented. If there was no real technological uncertainty — you followed a known API, a standard framework pattern, or a vendor's setup guide — it likely won't clear the eligibility test, and forcing a narrative onto it wastes effort and risks a weaker filing history.
- You're a subsidiary or majority-owned by a non-Canadian parent in a way that affects your CCPC status. The enhanced 35% refundable rate is specifically tied to CCPC status; confirm your structure with an accountant before assuming the top rate applies.
- You genuinely can't reconstruct what happened. A claim built entirely from memory eighteen months after the fact, with no commits, tickets, or notes to point to, is a weak claim regardless of whether the underlying work qualified. It may be worth waiting until you have a documentation habit in place for the next fiscal year rather than forcing a thin claim now.
None of these are permanent disqualifiers — they're reasons to fix the underlying gap (documentation, structure, or the nature of the work) before your next fiscal year end, not reasons to write off the program.
Building the habit instead of the scramble
The pattern that separates startups who file smoothly every year from ones who treat SR&ED as an annual fire drill is simple: the second group starts documenting after the fiscal year ends, and the first group never stops. Commits, PR descriptions, ticket comments, and design discussions already contain most of what a T661 narrative needs — the uncertainty you faced, what you tried, what you measured. The only question is whether anyone captures it as it happens instead of trying to remember it eighteen months later.
That's the specific problem Glauq is built around: it collects that evidence continuously from the tools your engineering team already uses, so the technical narrative is built from records made when the work happened. A qualified, independent SR&ED expert then reviews every claim before it's filed and stands behind it if the CRA has questions — the automation handles the gathering, a named person takes accountability for what goes in. And because the fee is flat rather than a cut of your refund, filing a strong first claim doesn't cost you more as your claim grows.
Frequently asked questions
Do startups need to be profitable to claim SR&ED? No. The 35% enhanced rate for CCPCs is refundable, meaning eligible companies get cash back even with zero taxable income, per the CRA's investment tax credit policy. Most pre-revenue and early-revenue startups are exactly the profile this refundability was designed for.
How much can a first-time claim actually be worth? It depends entirely on eligible spend, but the ceiling moved recently: CCPCs can now earn the enhanced 35% refundable rate on up to $6 million of qualifying expenditures per year, up from $3 million, per Bill C-15. At the full limit that's up to $2.1 million federally, before any provincial credit is added on top.
What's the fastest way to know if our work qualifies before we spend a year on it? Apply for pre-claim approval through My Business Account. It's built for this exact situation, gives a determination within 8 weeks, and covers up to 3 projects for companies with gross business income under $25 million.
Can we claim work from before we knew about SR&ED? Often yes, if the fiscal year's reporting deadline hasn't passed. The deadline is 18 months after your fiscal year end for a corporation, per the CRA's deadline guidance, so at any given moment you typically still have your two most recent fiscal years open. Check your specific dates immediately; there's no extension once the wall passes.
Do we need a SR&ED consultant for our first claim, or can we file it ourselves? You can file it yourself — the CRA doesn't require a third party. What tends to determine whether a first claim goes smoothly isn't who prepares it, but whether the technical narrative is grounded in real project evidence and whether someone with SR&ED experience has reviewed it against the two-part eligibility test before it's submitted.
The rules for SR&ED don't get easier or harder because it's your first claim. What changes is how much risk sits in the gaps — not knowing the deadline, not recognizing eligible work, not having evidence when you need it. Close those gaps once and every claim after the first one gets easier.
See what your first claim could be worth — estimate your refund or check your eligibility.