Two Paths, Two Different Outcomes for Basis
A traditional tax equity partnership, structured as a partnership flip, allows the investor's capital contribution to increase the partnership's basis in the project. That stepped-up basis then supports depreciation deductions the investor can use, which is a meaningful part of what makes tax equity pricing work the way it does. The investor isn't just buying a credit, they're buying into a structure that generates ongoing tax benefits beyond the credit itself.
A Section 6418 transfer works differently. When a developer sells a credit directly to a buyer under the elective transfer rules, the transaction is treated as a cash sale of the credit itself, not as a capital contribution to a partnership. The buyer receives the credit at its transferred value, in cash, but there's no step-up in the project's basis as a result of that transaction. The seller retains the underlying depreciation deductions, and the buyer doesn't receive any depreciation benefit from having paid for the credit.
Why This Matters More for Some Sellers Than Others
For a for-profit developer that can use its own depreciation deductions, this isn't necessarily a problem. Retaining the depreciable basis is often exactly what the seller wants, since it keeps a valuable tax attribute in-house rather than transferring it away. The transfer market's core appeal, speed and simplicity relative to negotiating a full tax equity partnership, holds up well in this scenario.
For a sponsor that doesn't have enough tax liability to use depreciation deductions efficiently, or for platforms built around monetizing every available tax attribute from a project, this is a real tradeoff. A tax equity partnership might generate more total value from the project even at a lower headline credit price, because the depreciation benefits flowing through the structure add up over the following years. A transfer deal that looks more attractively priced on the credit alone can end up leaving value on the table when the full tax position is modeled out.
Where This Intersects With Direct Pay and Transfer Mechanics
This distinction sits right alongside the broader mechanics covered in Section 6417 and 6418: How Direct Pay and Credit Transfers Actually Work. That piece walks through how the two elective monetization paths function procedurally. This is the deeper financial modeling question underneath that mechanical description: once you understand how a transfer actually works, the next question is what a seller gives up by choosing that path over a partnership structure that preserves basis.
Modeling the Actual Tradeoff
The practical fix is running both scenarios side by side before choosing a monetization path, not after. That means calculating not just the net cash a transfer would generate at current market pricing, but also the present value of the depreciation deductions a tax equity structure would generate if the seller could use them, or could sell that value through a different structure if they can't. For sponsors with limited tax appetite of their own, this calculation often favors tax equity even when transfer pricing looks competitive on its face. For sponsors with strong internal tax capacity, the simplicity of a transfer deal frequently wins once the basis retention is properly valued. Either way, this is not a decision that should be made on credit pricing alone.