Many startup founders assume every payroll expense or contractor invoice can be deducted immediately. For software companies, AI startups, and technology businesses, that is often not true.
The tax treatment of development and R&D costs can significantly affect taxable income, cash flow, fundraising models, and financial forecasts. One of the most misunderstood areas is Section 174 of the Internal Revenue Code.
Key Takeaways
- Section 174 requires many R&E costs to be capitalized and amortized, not deducted immediately.
- Domestic R&E amortizes over 5 years; foreign R&E amortizes over 15 years.
- Software development, AI model training, and product engineering often fall under Section 174.
- Offshore engineering teams can significantly increase current-year taxable income.
- Proper documentation and separation of expense categories are essential for compliance.
What Is Section 174?
In plain language, Section 174 governs the tax treatment of Research and Experimental (R&E) expenditures. Instead of letting companies deduct these costs in the year they are incurred, current rules generally require them to be capitalized and amortized over multiple years.
These rules often apply to:
- Software development
- Product development
- AI model development
- Engineering work
- Technical R&D
- Certain prototyping activities
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Why Startup Founders Should Care
Two startups with identical engineering budgets can have very different tax outcomes depending on:
- Where development work is performed
- Whether the work qualifies as R&E
- Whether expenses are domestic or foreign
This directly impacts:
- Taxable income
- Cash runway
- Investor reporting
- Fundraising models
Heads up: Foreign R&E expenditures must generally be amortized over 15 years, while domestic R&E amortizes over 5 years. The difference can dramatically change current-year taxable income.
Common Expense Categories
The table below illustrates how typical startup costs may be treated. It is a simplified overview — not tax advice.
| Activity | US Employee | US Contractor | Foreign Contractor | Typical Tax Treatment |
|---|---|---|---|---|
| Routine bookkeeping | Current-year expense | Current-year expense | Current-year expense | Ordinary business expense |
| Marketing campaigns | Current-year expense | Current-year expense | Current-year expense | Ordinary business expense |
| Sales activities | Current-year expense | Current-year expense | Current-year expense | Ordinary business expense |
| Customer support | Current-year expense | Current-year expense | Current-year expense | Ordinary business expense |
| IT support / maintenance | Current-year expense | Current-year expense | Current-year expense | Generally ordinary business expense |
| Software bug fixes | Usually current-year expense | Usually current-year expense | Usually current-year expense | Depends on facts |
| New software development | Potential Section 174 treatment | Potential Section 174 treatment | Generally subject to foreign Section 174 amortization rules | Requires analysis |
| AI model development | Potential Section 174 treatment | Potential Section 174 treatment | Generally subject to foreign Section 174 amortization rules | Requires analysis |
| R&D activities | Potential Section 174 treatment | Potential Section 174 treatment | Generally subject to foreign Section 174 amortization rules | Requires analysis |
Tax treatment depends on specific facts and circumstances. Startup founders should consult a qualified U.S. tax advisor before making decisions.
Example
Consider a Delaware AI startup that spends:
- $200,000 on marketing
- $300,000 on customer acquisition
- $500,000 on software development by an overseas engineering team
Marketing and customer acquisition costs are generally deductible in the current year. Software development costs paid to an overseas team, however, may be subject to Section 174 capitalization and 15-year amortization rules.
The result: the company's current-year tax deductions may be significantly lower than founders expect — and taxable income meaningfully higher than the cash picture suggests.
Practical Recommendations for Founders
- Separate development and operational expenses in your books
- Track contractor location (U.S. vs. foreign)
- Maintain proper documentation of R&E activities
- Review Section 174 exposure annually
- Model tax impact before hiring offshore engineering teams
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Frequently Asked Questions
Does Section 174 apply to software development?+
In many cases, yes. The IRS broadly treats software development as a research and experimental (R&E) activity, which means related costs may need to be capitalized and amortized under Section 174 rather than deducted in the current year. The specifics depend on the nature of the work and the facts of your situation.
Can offshore developers create tax complications?+
Yes. Under current Section 174 rules, foreign research expenditures must generally be capitalized and amortized over 15 years, compared with 5 years for domestic R&E. That can meaningfully change your taxable income and cash needs, so the location of your engineering team matters for tax planning.
Do employee and contractor costs receive the same treatment?+
Often, yes. If the underlying activity is R&E under Section 174, both employee compensation and contractor payments tied to that work may be treated similarly. What matters most is the activity being performed and where it is performed — not the worker classification by itself.
How can startups estimate their Section 174 exposure?+
Start by separating routine operating costs from product and engineering work, then track where each engineer or contractor is based. From there, a qualified U.S. tax advisor can help model the deferred deductions and the impact on taxable income, runway, and forecasts.
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Disclaimer: This article is for informational purposes only and does not constitute tax, legal, or accounting advice. Please consult a qualified U.S. tax advisor for guidance on your specific situation.