Market intelligence
August 7, 2025

Transferable Tax Credit Handbook Version 4.1

A comprehensive guide to buying and selling tax credits. Navigate the transferability process from start to finish, from identifying appropriate credits to due diligence and legal documentation.

Read by over 5,000 members of the transferable tax credit market

Reunion’s transferable tax credit handbook is a comprehensive, 140-page guide to buying and selling tax credits.

Our latest version (4.1) incorporates key changes from H.R.1 - One Big Beautiful Bill Act (OBBBA), including new policies related to foreign entities of concern (FEOC) and updated tax credit phase-out schedules

"Reunion’s handbook has the exact level of detail that I was looking for. I appreciated the links to relevant sections of the tax code and I've encouraged my entire team to download the handbook."- Fortune 500 Director of Tax

The handbook covers the transferability process from start to finish, including key topics such as:

  • Technical considerations for buying and selling credits: tax treatment for buyers and sellers, guidance on transfer election statements, required minimum documentation, and excessive credit transfers and associated penalties
  • Impacts from the OBBBA: the OBBBA introduced significant changes to clean energy incentives, including accelerated phasedowns of certain tax credits. Corporate tax changes such as 100% bonus depreciation and full expensing of domestic R&E expenditures will also impact tax liability and tax credit purchasing plans for many buyers
  • Foreign entity of concern (FEOC) restrictions: detailed discussion of taxpayer-level and project-level FEOC restrictions, including material assistance requirements for §45Y, §48E, and §48X credits
  • Due diligence considerations for the major tax credits: §45 production tax credits, §45X advanced manufacturing production credits, and §48 investment tax credits
  • Pricing trends: major drivers of tax credit pricing including risk, complexity, size of transaction, and terms such as payment timing, insurance, and strength of indemnity
  • Cash flow considerations: detailed examples of the cash flow impact of tax credit payments, with a focus on structures where buyers can achieve the full benefit of tax credits prior to paying cash
  • Risk mitigation: how buyers can protect their tax credit purchase through seller indemnity, parent guaranty, and tax credit insurance
  • Tax credit transfer agreements: common points of negotiation between buyers and sellers during term sheet and definitive legal documentation
  • Tax credit matrix: summary of the 12 types of tax credits that can be transferred and their characteristics, including bonus credit adders and compliance with prevailing wage and apprenticeship requirements

Buy tax credits with speed and certainty

Fortune 1000 companies and leading clean energy providers turn to Reunion to execute tax credit transfers with speed and certainty.

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