MMPA Damages — Missouri Punitive Damages Layer (Post-SB 591)

The Missouri Merchandising Practices Act (MMPA) layers significant additional damages on top of the Missouri Lemon Law — particularly punitive damages under § 407.025(1) and mandatory attorney fees. However, the 2020 SB 591 reforms narrowed MMPA — requiring careful post-SB 591 pleading for damages recovery.

What MMPA recovers (post-SB 591)

Under § 407.025(1) as amended by SB 591:

1. Actual damages — ascertainable loss of money or property, pleaded with specificity.
2. Punitive damages — discretionary under § 407.025(1); requires clear and convincing evidence of willful, wanton, or reckless conduct.
3. Equitable relief — injunctions, restitution.
4. Mandatory attorney fees under § 407.025(1) — separate from § 407.579 Lemon Law fees.
5. Costs.

Ascertainable loss — post-SB 591 specificity

SB 591 requires plaintiff to plead and prove “ascertainable loss of money or property” with specificity. For vehicle cases, this means itemizing:

• Purchase price.
• Sales tax + registration.
• Finance charges.
• Repair costs (out-of-warranty).
• Diminished value (with expert appraisal).
• Cost of substitute transportation.
• Lost wages for repair-shop visits.

Vague or unspecified losses are insufficient under SB 591.

Reasonable consumer standard

The deceptive practice must be material to a reasonable consumer. Subjective complaints alone are insufficient post-SB 591.

When MMPA applies in vehicle cases

MMPA covers vehicle-related deceptive practices:

• Misrepresentation of vehicle condition, options, or history.
• Failure to disclose prior accidents, salvage, or known defects.
• Deceptive warranty practices — wrongful denial, requiring unauthorized parts.
• Lemon Law violations can be MMPA per se (with post-SB 591 specificity).
• Dealer fraud — bait-and-switch, fee inflation, F&I deceptive add-ons.

Punitive damages — discretionary, clear and convincing

Under § 407.025(1) as amended:

• Discretionary — court “may” award.
• Clear and convincing evidence standard for willful/wanton/reckless conduct (heightened post-SB 591).
• No fixed multiplier — Missouri common-law punitive damages framework applies.

Mandatory § 407.025(1) attorney fees

Although § 407.025(1) says “may,” Missouri courts treat MMPA fees as functionally mandatory for prevailing plaintiffs.

5-year SOL

MMPA actions must be brought within 5 years from the violation under § 516.120(2). Long runway compared to peer states.

Comparison to peer state UDAPs

State	UDAP	Multiplier	SOL	Notes
Missouri	MMPA	Discretionary common-law punitive	5 years	Narrowed by 2020 SB 591
Pennsylvania	UTPCPL	Discretionary treble	6 years
Minnesota	Private AG	No multiplier / mandatory fees	6 years
Connecticut	CUTPA	Discretionary common-law	3 years
New Jersey	CFA	Mandatory treble	6 years
Tennessee	TCPA	Discretionary treble	1 year

Pleading practice (post-SB 591)

Best practice in Missouri Lemon Law cases:

1. Lemon Law (§ 407.560) — refund/replacement + mandatory fees.
2. MMPA (§ 407.010 et seq.) — actual + punitive + mandatory fees with post-SB 591 specificity.
3. Magnuson-Moss — federal-court access + mandatory fees.

Bottom line

MMPA was narrowed by 2020 SB 591 but remains a meaningful Missouri remedy layer — providing punitive damages and a second mandatory fee basis with the long 5-year SOL. Post-SB 591 pleading requires ascertainable loss specificity — careful attorney drafting is essential.

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