Reviewed by Logan Hanson, BSc, CPA. Last verified against CRA guidance on August 4, 2026.
A good SR&ED service doesn’t just file your claim. It makes the refund bigger, faster to land, and far harder for the CRA to knock down. Those are three different jobs, and most of the money left on the table comes from doing one or two of them well and the third badly. Here’s how professional SR&ED support actually strengthens an R&D refund claim, what actually makes the difference, and what doesn’t.
They make it bigger mostly by finding eligible work and eligible costs you would have left out. That’s the real lever. Founders tend to claim the one obvious project and stop, while a practised reviewer walks the whole year and picks up the pockets of uncertain work scattered across other projects, plus the costs that attach to them.
None of that is wordsmithing. It’s knowing where eligible work lives and having the discipline to go find it.
They make it defensible by writing the claim in the CRA’s language and backing it with contemporaneous evidence. The refund number only holds up if the technical story establishes technological uncertainty, systematic investigation, and technological advancement, tied to records that existed while the work happened.
A strong service frames each project around the technological uncertainty rather than the product, links it to evidence you already generated (commits, tickets, benchmarks, design notes), and keeps the costing consistent with the technical story. That’s what turns a plausible claim into one that survives a review.
A clean, complete claim is more likely to be accepted as filed, and that’s the fast lane. The CRA’s service standard targets 60 days for refundable claims accepted as filed, against 180 days for refundable claims selected for review, both measured from a complete claim. Those are targets, not guarantees, but the difference between the two paths is largely about how well the claim is put together.
Gaps, thin narratives and costing that doesn’t reconcile are what tend to trigger a closer look. Tightening those up front is the most reliable way to get your cash sooner.
A fuller review can materially increase a claim by finding eligible salaries, contractors and projects that self-filing missed. Here’s the shape of that gap, using round numbers. Say a CCPC self-files on its flagship project only, capturing $200,000 of eligible salaries, for about $70,000 in federal credit before overhead and provincial credits.
A full review of the same year finds another $100,000 of eligible salaries in two other projects, plus a $50,000 arm’s-length Canadian contractor (claimable at 80%, so $40,000). That lifts the base from $200,000 to about $340,000, for roughly $119,000 in federal credit before the prescribed-proxy overhead amount and provincial credits. Same year, same company, same actual work. The difference is what got found. This is illustrative, and your numbers will differ, but the pattern is what matters.
For a qualifying CCPC, that federal credit is refundable, paid as cash even in a loss year. With provincial credits added, the combined return is higher than the federal credit alone, though not by simple addition, and how much higher depends on your province. Our State of SR&ED overview has the wider context.
Yes, and by more than most founders expect. Two firms can file the identical claim and leave you with very different amounts of cash, because the fee comes out of your refund either way. A percentage fee scales with the refund, so the better your R&D year, the more it takes. A flat fee doesn’t.
Percentage-fee pros: nothing out of pocket up front, and the firm is motivated to maximize the claim.
Percentage-fee cons: the cost rises every year your refund grows, even though the work of filing doesn’t scale the same way, so the lifetime cost can be large.
Flat-fee pros: you know the cost up front, it doesn’t balloon as your claim grows, and more of the credit stays with you.
Flat-fee cons: there’s a defined fee even in a smaller year, though if there’s no eligible work at all, a fair provider shouldn’t charge you.
A service earns its fee by doing the things that grow and protect the refund. Hold yours to this list.
SRED.ca charges a flat fee, billed monthly, never a percentage or contingency fee, which usually works out to roughly half the lifetime cost of a percentage-based firm. As far as we know, we’re the only SR&ED provider that publishes its pricing on its website, so you can see it before you talk to us. We track your eligible work year-round so the smaller slices actually make it in, we’re CPA-owned, and audit defense is included. If the CRA approves less than 75% of the filed claim, we waive our fees. If there’s no eligible work in your year, you don’t pay. You can see the terms on our pricing page.
The point of an SR&ED service isn’t the paperwork. It’s a bigger refund because more eligible work got found, a cleaner one that lands faster, and one you can actually defend, with less of it lost to fees. If you want to see what a full review would surface in your year, grab a free consultation. For the official rules, the CRA’s SR&ED program page is the source.
Related reading: how SR&ED tax services support startup R&D credits, why an SR&ED refund shrinks under a previous consultant, and how much leaving a contingency-fee firm saves.
A good one does both. The increase usually comes from finding eligible work and costs you would have missed across your year, not from rewording a claim you already scoped. The paperwork matters too, because a clean claim is more likely to be accepted as filed and paid faster.
A well-built claim is easier to defend if it’s selected for review, because its technical narrative, evidence and costing reconcile. Reviews tend to focus on claims where those things don’t line up, so tightening them up front reduces your exposure. If your claim is reviewed anyway, a service that includes audit defense stands behind the numbers with you.
It depends on your claim size and how it grows, but a flat fee leaves more of the credit with you as your R&D scales, because it doesn’t rise with the refund. A percentage fee takes a share of every dollar, every year. Over several years the difference can be large.
Sometimes, yes. A corporation can amend or add to a claim before its SR&ED deadline, which is 18 months after fiscal year-end. If you’re still inside that window for the year, an amended or additional claim may be possible. Once it closes, that year is generally locked, which is why a review before the deadline beats one after.
You can file yourself, and some founders do it well. The trade-off is time and the risk of leaving eligible work unclaimed or filing a claim that’s harder to defend. A service is worth it when the extra refund it finds, and the risk it removes, outweigh its fee.
For a CCPC, the enhanced federal rate is 35% on up to the first $6 million of qualifying expenditures, up to $2.1 million refundable a year, before provincial credits. With a province’s credit, the combined return is higher than the federal credit alone, though not by simple addition, and how much higher is province-dependent, and the enhanced federal limit phases out with taxable capital and is shared among associated corporations.
This article is general information, not tax advice. Tax figures depend on your corporation type, province, and taxation year.
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