Congress quietly doubles the tax subsidy for aviation fuel producers
H.R. 6518 — SAF Act · Filed by Sharice Davids (D-KS) · 11 cosponsors · Introduced Dec 9, 2025 · Referred to committee
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What it does
This bill increases the federal tax credit for sustainable aviation fuel (SAF) production from 20–100 cents per gallon to 35–175 cents per gallon, depending on production method, and extends the credit's expiration date from 2029 to 2033. The bill benefits SAF producers and airlines by making SAF more economically competitive with conventional jet fuel.
Why we flagged it
The bill's operative mechanism is a direct increase in the per-gallon tax credit rate and extension of the credit window—a subsidy to SAF producers. The stated purpose (reinstatement and extension) is plainly achieved by the text, with no hidden mechanism.
What the text implies
- The bill does not require SAF producers to pass cost savings to airlines or consumers, so the full credit benefit may accrue to producers as profit rather than reducing fuel prices.
- No emissions-reduction target or verification requirement is stated in the bill text; the credit is available to any SAF meeting ASTM standards, regardless of actual lifecycle carbon benefit.
The full analysis lists 4 implications of this text.
Who stands to gain
sustainable aviation fuel producers; airlines (as purchasers of SAF); petroleum refineries with SAF production capacity