OBBB tax cuts shrink the buyer pool for small clean energy credits, marketplaces say

The transferable clean energy tax credit market grew to $42 billion in 2025, up from $28 billion in 2024, according to data from financing platform Crux - but the headline figure masks a deepening split between large and small transactions that is squeezing financing for community-scale solar and storage projects^[1].

The One Big Beautiful Bill Act, signed on 4 July 2025, reduced corporate tax liabilities by an estimated 20-30%, according to Crux's 2025 market intelligence report. That reduction directly shrinks the pool of corporations with enough tax exposure to justify buying credits at all, and it hit the sub-$10 million segment hardest. Large buyers, who were already the dominant force in the market, pulled back to recalibrate their appetite; smaller credits - the kind that finance community-scale storage or distributed solar - were left with fewer takers.

Why small credits are structurally harder to sell

The compliance burden does not scale with deal size. Jason Prince, founder and CEO of Giraffe Financial, a marketplace specialising in small and mid-market credits, has described the due diligence checklist as exhaustive regardless of whether a transaction is worth $1 million or $50 million^[1]. Insurance compounds the problem: tax credit insurance can cost up to 7-8% of a credit's value, a cost that is manageable on a $50 million deal but potentially deal-killing on a $1 million one^[1].

Liz Pearce, chief revenue officer at marketplace Ever.green, has noted that credits under $10 million represent "an amount of tax relief that is not going to get larger corporations excited"^[1]. The OBBB's reduction in corporate tax bills makes that calculus worse: a company with a smaller liability has less reason to seek out credits at all, let alone small ones.

Who is still buying

The buyers that remain active in the small-credit segment tend to fall into a few categories^[1]:

• Corporations dipping into the market for the first time
• International companies with limited U.S. tax liability
• Seasoned buyers topping off a larger portfolio with a handful of smaller transactions
• Family offices and high-net-worth individuals

Tao Mantaras, co-founder and COO of Concentro, another small-to-mid-market specialist, has described these counterparties as often transacting for the first time, requiring significant hand-holding that makes every deal more manual^[1].

How marketplaces are responding

Two approaches are gaining traction. Giraffe has moved toward umbrella insurance policies - bundling multiple small credits onto a single policy rather than insuring each one individually - to bring per-credit insurance costs down^[1]. Concentro uses an AI underwriting tool that handles the bulk of document categorisation and cross-checking, reducing the manual load on each transaction^[1].

Average ITC prices from investment-grade sellers fell from $0.940 in the first half of 2025 to $0.931 in the second half, with PTC pricing dipping from $0.950 to $0.940, according to Crux data. For small credits already trading at a discount to large ones, further price compression narrows the economics further.

The OBBB preserved transferability - credits can still be sold - but the combination of accelerated wind and solar phaseouts and reduced corporate tax bills means the window for monetising small distributed-energy credits is tighter than it was a year ago. Whether specialist marketplaces can standardise their way out of the problem is the question to watch.