# Joint and several liability rule · Iowa — Comparative fault system and joint and several liability rules by state

For Joint and several liability rule · Iowa, state is Iowa; rule type is Joint and several liability rule; joint liability fault threshold is 50% or more; statutory citation is Iowa Code § 668.4, recorded from its source on 2026-08-31.

- **State:** Iowa _(our reading, not quoted from the source)_
- **Rule type:** Joint and several liability rule _(our reading, not quoted from the source)_
- **Joint liability rule:** Defendants are responsible only for their proportionate share of negligence where a defendant is found to bear less than 50% of the total fault. If a defendant is 50% or more liable, he is jointly and severally liable for economic damages only. _(verified: appears in the quote below)_
- **Joint liability fault threshold:** 50% or more _(verified: appears in the quote below)_
- **Statutory citation:** Iowa Code § 668.4. _(verified: appears in the quote below)_

## What the source says

> Yes. Defendants are responsible only for their proportionate share of negligence where a defendant is found to bear less than 50% of the total fault. If a defendant is 50% or more liable, he is jointly and severally liable for economic damages only. Iowa Code § 668.4.

## Source

- https://www.ama-assn.org/system/files/mlr-state-laws-chart-I.pdf

Last verified: 2026-08-31. Review by: 2027-08-31.
Part of [Comparative fault system and joint and several liability rules by state](https://referencesource.org/state-comparative-fault-joint-liability-rules/).