Corporate Tax Incentives for R&D Investment in OECD Countries

Differentiating internal equity from debt finance, this study examines the generosity of R&D-specific tax incentives in OECD countries based on an NPV model. The corporate tax system generally favours debt finance and some previous findings on the possible preponderance of internal equity for financing R&D investment cannot be explained in relation to R&D-specific tax concessions. The OECD comparison demonstrates that R&D tax allowances adopted in the Czech Republic, Belgium, the UK, Denmark, Hungary, Austria and Australia generated the most substantial tax savings in 2006. Combined with such incentives, the after-tax NPV increases with the corporate tax rate, suggesting stronger investment stimulation through a tax-rate-increase-cum-base-broadening policy.