Orphan drug credit
Clinical testing for designated rare diseases earns a 25% credit, separate from the research credit.
Industry tax guide
Tax credits for clinical work, and finances ready for the next raise.

Pharmaceutical, biotech and life sciences companies spend years on research and clinical trials before revenue, fund that work through equity rounds, and build or lease specialized labs and production space.
Their tax picture is dominated by research incentives: the research credit, the orphan drug credit and immediate deduction of research costs, along with the losses and ownership changes that come with venture funding.
Compared with a general business
Clinical testing for designated rare diseases earns a 25% credit, separate from the research credit.
Most spending is research, so Section 174A and the research credit shape the return.
Equity rounds can trigger Section 382 limits on net operating losses and credits.
Where patents are held and how affiliates are paid for them drives global tax.
The rules in detail
Companies testing drugs for rare diseases or conditions designated under the Orphan Drug Act can claim a credit of 25% of qualified clinical testing expenses on Form 8820. Those expenses cannot also be counted for the regular research credit.
Discovery, formulation and process development qualify for the research credit. A qualified small business can apply up to $500,000 a year of the credit against payroll taxes, which helps companies with no income tax yet.
Domestic research costs are deductible right away again for tax years starting in 2025, which increases net operating losses. After a large funding round, Section 382 may limit how much of those losses can be used later.
Planning moves
Up to $500,000 a year against payroll taxes for qualified small businesses.
25% of qualified clinical testing expenses for designated drugs.
Section 174A applies to domestic research from 2025, with amended returns possible for small businesses.
Rounds are structured knowing the limit.
Founders and early investors may exclude gain on qualified stock.
Manufacturing facilities can qualify under Section 168(n).
Working with OICPA
Clinical and preclinical spending reviewed for both credits, with the overlap handled correctly.
R&D Tax CreditOwnership change studies, audit-ready financials and the tax provision investors expect.
Pre-IPO & Capital MarketsCost segregation and 100% depreciation for qualified production property on manufacturing space.
Cost Segregation CoordinationA quick estimate from wages, supplies and contract research costs.
R&D Tax Credit EstimatorBookkeeping and reporting
Forecast runway by development stage and organize research documentation for a qualified specialist's tax incentive assessment.
Long development timelines, research vendors, milestone payments, and financing rounds make the timing and classification of spending especially consequential.
Research project ledgers, vendor contracts, grant agreements, milestone schedules, and capitalization records give the review a practical starting point. We identify missing information before recommending changes.
Yes, but not on the same expenses. Clinical testing costs used for the orphan drug credit are excluded from the research credit.
Yes. Eligible startups can apply up to $500,000 a year against the employer share of payroll taxes, and unused credits carry forward.
They can be limited if ownership changes by more than 50 percentage points over three years. We run a Section 382 study before each round so the limit is known.
Rules reflect federal tax law as of November 2026.