Congress quietly doubles the tax subsidy for aviation fuel producers

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 4-year extension (2029→2033) creates a cliff: producers and airlines may face sudden credit loss in 2034 unless Congress extends again, creating policy uncertainty.
• The bill does not address whether the higher credit rates are sufficient to make SAF cost-competitive with conventional jet fuel at scale, or whether further subsidies will be needed.

Section numbers refer to the bill text the analysis read — linked under Primary records below.

Who it affects

The bill may reduce aviation fuel costs and carbon emissions by accelerating SAF adoption, a public environmental benefit. However, the credit is a direct subsidy to fuel producers and airlines, funded by general tax revenue, with no requirement that cost savings pass to consumers or that emissions reductions meet specific targets—creating a private benefit at public expense without guaranteed public return.

Who stands to gain

• sustainable aviation fuel producers
• airlines (as purchasers of SAF)
• petroleum refineries with SAF production capacity

Named in the bill

Internal Revenue Code §45Z, ASTM International (Standard D7566, D1655), SAF producers, Airlines, U.S. Department of Treasury

Where it stands

11 cosponsors: 6 Republicans, 5 Democrats.

• Dec 9, 2025 — Introduced · Congress.gov: “Introduced in House”
• Dec 9, 2025 — Referred to House Committee on Ways and Means · Congress.gov: “Referred to the House Committee on Ways and Means”

Dates and quoted wording are Congress.gov's action record; the timeline shows status changes, not every procedural step.

Money around this bill

12 lobbying clients named this bill on 13 disclosure filings across 2 quarters, Dec 2025 to Jun 2026. Those filings disclosed $9,961,041 in lobbying spend. A filing names 13 bills on average, so that figure is what each filing reported, not a share belonging to this bill.

More lobbying clients named this bill than 93% of bills with at least one filing.

Sharice Davids, the sponsor, reported $904,155 in PAC receipts in the 2026 cycle. $10,500 of that came from 3 PACs tied to these lobbying clients.

• Boeing Company — $2,770,000 on 1 filing
• Delta Air Lines Inc — $1,460,000 on 1 filing
• Phillips 66 — $1,320,000 on 1 filing
• United Airlines Inc — $1,110,000 on 1 filing
• Airports Council International -- North America — $775,201 on 1 filing

Lobbying Disclosure Act filings through Jul 20, 2026. A filing shows who paid to lobby on a bill it names, not what changed.