R&D Tax Credits by Country: A Guide for Deep-Tech Companies

Every major economy subsidizes private R&D, because research-intensive companies create outsized economic value and most of the risk is borne before any revenue arrives. The mechanism is usually a tax credit: you spend on qualifying research, and the government returns some of it — either as a reduction in tax owed or, in the best cases, as cash.

For deep-tech companies — advanced materials, semiconductors, biotech, climate tech, hardware — these programs matter more than for most businesses, because the R&D phase is long, capital-intensive, and pre-revenue. The single most important thing to understand in any jurisdiction is whether the credit is refundable (you get cash even when you owe no tax) or non-refundable (it only offsets a tax bill you may not have yet).

Rates and thresholds in this guide change frequently with each country’s annual budget. Treat the figures as orientation, confirm the current numbers with a qualified advisor, and check each page’s “updated” date.

What generally counts as R&D

Across most regimes, qualifying R&D shares a common shape: work undertaken to resolve scientific or technological uncertainty that a competent professional could not readily deduce. Routine engineering, styling, and market research usually don’t qualify; experimental development to overcome a genuine technical unknown usually does. Eligible costs typically include staff time, contractors, materials consumed in the research, and sometimes cloud/computing costs.

This is also where most claims are won or lost: the credit is only as defensible as the contemporaneous evidence that the work was genuinely uncertain and experimental.

Canada — SR&ED

The Scientific Research and Experimental Development (SR&ED) program is one of the most generous and widely used in the world. Its defining feature for startups: it is refundable for Canadian-controlled private corporations (CCPCs). A qualifying small CCPC can receive a cash refund on a large share of its qualified R&D expenditure, even with no taxable income — plus provincial credits on top. Larger and non-CCPC claimants generally receive a smaller, non-refundable credit.

For deep-tech founders, SR&ED’s cash-refund mechanism makes it a genuine source of non-dilutive funding, not just a tax optimization.

United Kingdom — R&D tax relief

The UK consolidated its two historical schemes into a merged R&D expenditure credit for accounting periods beginning on or after 1 April 2024, delivered as an above-the-line credit. Alongside it, R&D-intensive loss-making SMEs (those spending a high share of total costs on R&D) qualify for enhanced support with a more favorable, partly cash-payable benefit. The UK has also tightened compliance significantly — additional information forms and scrutiny — so documentation discipline is now essential.

United States — the Section 41 credit

The US federal Research & Experimentation credit (Internal Revenue Code Section 41) is non-refundable against income tax. The important exception for startups: a qualified small business can elect to apply a portion of the credit against payroll taxes instead of income tax — meaning a pre-revenue, pre-profit company can still monetize it. The payroll-offset cap was increased under the Inflation Reduction Act. Many US states run their own credits on top of the federal one.

France — the Crédit d’Impôt Recherche (CIR)

France’s CIR is a cornerstone of its deep-tech ecosystem: a credit calculated as a percentage of eligible R&D expenditure up to a high ceiling, with the unused balance refundable in cash after a few years — and immediately refundable for some categories, including young innovative companies and SMEs. The CIR’s scale and cash-back design are a major reason France attracts research-heavy startups.

Australia — the R&D Tax Incentive (R&DTI)

Australia’s R&DTI offers a refundable tax offset for smaller companies (below a turnover threshold) and a non-refundable offset for larger ones. The refundable tier makes it, like SR&ED, a cash source for early-stage research companies rather than only a tax reducer.

How the regimes compare

Country	Program	Cash to a pre-revenue company?	Key feature
Canada	SR&ED	Yes (CCPCs)	Refundable for small private companies, plus provincial credits
UK	Merged R&D relief / ERIS	Partly (R&D-intensive SMEs)	Above-the-line credit; enhanced tier for R&D-heavy loss-makers
US	Section 41	Yes, via payroll offset	Non-refundable, but qualified startups offset payroll tax
France	CIR	Yes (some categories)	Large ceiling; cash-refundable balance
Australia	R&DTI	Yes (under turnover threshold)	Refundable offset for smaller companies

The common thread: evidence

Wherever you claim, the program rewards documented experimental work. The companies that claim cleanly — and survive audit — are the ones that capture, as the work happens, what technical uncertainty they were resolving, who worked on it, and how much it cost. Reconstructing that after year-end is where claims get thin and risky.

That evidence problem is the same one deep-tech finance teams face when capitalizing software and running cost accounting — and it’s the reason the strongest claims are built from the delivery record, not from memory. For what specifically qualifies and how to document it, see what counts as R&D; for how credits fit alongside grants and innovation programs, see non-dilutive funding for deep-tech.