3.1 Iowa Auto Insurance Requirements

Iowa auto insurance is built on three pillars the exam tests repeatedly: mandatory liability minimums of 20/40/15, an at-fault (tort) liability system, and a mandatory offer of uninsured-motorist coverage. Master these and the related proof-of-financial-responsibility rules.

Minimum Liability Coverage: 20/40/15

Iowa requires every driver to carry at least the following liability limits:

These 20/40/15 limits are among the lowest minimums in the nation. They cover third parties the insured injures or whose property the insured damages - they do not pay for the insured's own injuries or vehicle.

Memory aid: 20/40/15 - 20 (per person BI), 40 (per accident BI), 15 (property damage). Liability follows the at-fault driver's policy.

Exam tip: A proposal has circulated to raise Iowa minimums, but as of 2026 the requirement remains 20/40/15. Use the current figure unless a question states a future effective date.

Iowa Is an At-Fault (Tort) State

Iowa uses the traditional tort (at-fault) system, not no-fault:

• The at-fault driver (through their liability insurer) is responsible for the other party's damages
• Injured parties file a third-party claim against the at-fault driver's insurer, or sue the driver
• There is no mandatory PIP (personal injury protection) and no no-fault threshold

This connects directly to Iowa's modified comparative fault rule (covered in 3.2): if the injured party shares fault, recovery is reduced, and at 51% or more the claim is barred entirely.

Optional First-Party Coverages

Because liability protects others, drivers add coverages to protect themselves and their own vehicle:

Exam tip: In an at-fault state, liability pays the other party; collision/comprehensive/MedPay are first-party coverages the insured buys to protect themselves. Hail and animal strikes are comprehensive, not collision - a common Iowa distinction.

Uninsured / Underinsured Motorist Coverage

Iowa law requires insurers to offer uninsured-motorist (UM) and underinsured-motorist (UIM) coverage, but the insured may reject it.

• Every insurer must include/offer UM (and UIM) in new auto policies, at limits at least equal to the liability minimums (20/40)
• The insured may reject UM/UIM, but the rejection must generally be in writing
• Without a valid written rejection, UM/UIM is included at the offered limits

UM responds when the at-fault driver has no insurance (or is a hit-and-run); UIM responds when the at-fault driver has insurance but not enough to cover the injured insured's damages.

Exam tip: "Mandatory offer, optional purchase, written rejection" is the UM/UIM pattern. The insurer must offer it; the insured can decline only in writing - silence means the coverage stays on the policy.

Proof of Financial Responsibility and Penalties

Iowa enforces its mandatory-insurance law through financial responsibility rules:

• Drivers must be able to show proof of insurance on request - paper or electronic (smartphone) proof is accepted
• Proof is tied to vehicle operation and registration
• After certain violations or at-fault uninsured accidents, a driver may be required to file an SR-22 certificate proving they carry the minimum coverage for a set period

Penalties for Driving Without Insurance

Note: Exact fine amounts and surcharges are set by statute and can change; an at-fault uninsured accident carries the steepest consequences, including suspension and SR-22.

Quick Reference

Exam tip: The three highest-yield auto facts are 20/40/15 minimums, at-fault/tort system, and mandatory-offer UM/UIM with written rejection. Expect at least one question on each.

Rating and the SR-22

Auto premiums in Iowa reflect statutorily permitted rating factors - driving record, vehicle, mileage, territory, and similar criteria - applied through the state's competitive rating environment. The Commissioner can intervene only against unfairly discriminatory practices, not ordinary risk-based pricing.

An SR-22 is not insurance; it is a certificate the insurer files with the state verifying that a high-risk driver carries at least the minimum coverage. It is typically required after an uninsured at-fault accident, certain serious violations, or to reinstate a suspended license, and it must usually stay in force for a set period (often a few years). If the policy lapses, the insurer notifies the state and the driver's license can be suspended again. Producers should explain that an SR-22 raises cost and signals a high-risk classification.