Section 936: Pharmaceutical Colony and Its Collapse (1976-2006)
Section 936 of the Internal Revenue Code (1976-2006) allowed U.S. corporations to operate in Puerto Rico virtually tax-free, turning the island into a pharmaceutical manufacturing hub — then its repeal triggered an economic collapse that led directly to the debt crisis and PROMESA.
Section 936 is the story of Puerto Rico's colonial economy in miniature: boom, extraction, and abandonment.
The Law: Section 936 of the Internal Revenue Code (enacted 1976) allowed U.S. corporations operating in Puerto Rico to repatriate profits to the mainland tax-free. This made Puerto Rico the most tax-advantaged manufacturing location under the U.S. flag.
The Pharmaceutical Boom:
- Major pharmaceutical companies (Pfizer, Johnson & Johnson, Abbott, Baxter, Eli Lilly, Bristol-Myers Squibb) built manufacturing plants in Puerto Rico
- By the 1990s, Puerto Rico manufactured more pharmaceuticals per capita than anywhere on Earth
- 16 of the top 20 best-selling drugs in the U.S. were manufactured in Puerto Rico
- The industry employed approximately 30,000 workers directly and supported tens of thousands more
What 936 Actually Did:
- Corporations reported massive profits in Puerto Rico (where they paid no federal tax) rather than on the mainland
- Much of the 'manufacturing' was paper transfers — intellectual property shifted to Puerto Rico subsidiaries
- Corporate profits vastly exceeded wages paid to Puerto Rican workers
- The tax savings flowed to mainland shareholders, not to Puerto Rico's treasury
- Puerto Rico received local taxes, but at rates far below what the corporations would have paid as mainland taxes
The Numbers: At its peak, Section 936 corporations reported $13-15 billion in annual profits from Puerto Rico — roughly equal to the island's entire GDP. The corporations paid approximately $2 billion in wages to Puerto Rican workers while extracting $13+ billion in tax-free profits. This was extraction on a massive scale.
Repeal: In 1996, President Clinton signed legislation to phase out Section 936 over 10 years (complete by 2006). The reasons were mainland-centric: Congress wanted the tax revenue, and mainland states resented losing manufacturing jobs to Puerto Rico.
The Collapse:
- After 2006, corporations began leaving Puerto Rico
- Tens of thousands of manufacturing jobs disappeared
- Tax revenue declined sharply
- The Puerto Rico government borrowed to cover revenue shortfalls — beginning the debt spiral
- By 2014, Puerto Rico's debt had reached $72 billion
- By 2016, Congress imposed PROMESA and the Fiscal Oversight Board
The Pattern: Section 936 created an economy dependent on external tax incentives rather than organic development. When the incentive was removed, the economy collapsed — because the 'development' had always been extraction dressed as investment. Puerto Rico was never the beneficiary; it was the vehicle through which American corporations avoided American taxes.
The debt crisis, PROMESA, austerity, physician exodus, school closures, and Maria's devastating impact all trace directly to the Section 936 cycle: attract, extract, abandon.
Sources
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Section 936 Analysis - CRS
https://crsreports.congress.gov/product/pdf/RL/98-532 -
Section 936 and PR Economy - Federal Reserve
https://www.newyorkfed.org/research/current_issues/ci2-14.html