Modifying the sales or use tax refund for biodiesel production

Where it is now

1. ✓
   Done: IntroducedJanuary 14, 2026
2. ✓
   Done: SubcommitteeFebruary 3, 2026
3. ✓
   Done: Senate committeeFebruary 10, 2026
4. Next: Passes the Senate
5. –
   Skipped: House committeeSkipped
6. ✓
   Done: Passes the HouseMay 2, 202683–2
7. Next: To the Governor
8. Next: Signed into law

Became SF 2503 → Its progress continues under the new number. Go to SF 2503 What’s a funnel?

What’s in it

This bill increases the sales or use tax refund available to the producers of biodiesel from cents per gallon to cents per gallon. The amount of the refund is calculated by multiplying the designated rate (currently cents) by the total number of gallons of biodiesel produced by the biodiesel producer in this state. The bill changes the repeal date of the refund from January 1, 2028, to January 1, 2031.

From the explanation printed with the bill as introduced, written by the Legislative Services Agency. Amendments adopted later aren’t reflected. Full bill text

Senate subcommittee

Named February 18, 2026. It hasn’t reported yet.

• Sen. Dan Dawson REmail
• Sen. Janet Petersen DEmail
• Sen. Jason Schultz REmail

Three legislators hear a bill first and recommend what the committee should do; it’s the best time to weigh in. How to take part

Fiscal note

3 million.

• Biodiesel Producers, Sales Tax Refunds · May 1, 2026
• Biodiesel Producers, Sales Tax Refunds · April 23, 2026

Nonpartisan cost estimates from the Legislative Services Agency’s Fiscal Services Division. The newest is first. Reading a fiscal note

Iowa Code it changes

Amends§423.4

Read from the bill as introduced. Each links to every bill touching that chapter of the Iowa Code. How the Code works

Family tree

Where this legislation came from and where it went: earlier tries, the versions it moved through this Assembly, and later bills built on it.

Earlier and later bills are matched by wording or an identical title; check the text to be sure it’s the same idea.