Built for independent collision shops

Write insurance supplements in 30 seconds, not 3 hours

SupplementAI generates professional supplement letters cited to OEM procedures, I-CAR standards, and Mitchell estimating guidelines — ready to send to adjusters instantly.

Start free trial — no credit card See how it works

Free 14-day trial · Cancel anytime · Setup in under 5 minutes

SupplementAI — Claim CLM-2024-447821
Disputed Line Items
✗ Blend adjacent fender — Missing from estimate
✗ OEM bumper reinforcement — Underpaid by $145
✗ Refinish material cost — Underpaid by $67
+$393.00 supplement recovery

⚡ Generate Supplement Letter
SUPPLEMENT REQUEST — Pro Collision Center
March 21, 2026

To: Mike Torres, State Farm Insurance
RE: Claim CLM-2024-447821
Vehicle: 2022 Toyota Camry SE

ITEM 1: BLEND ADJACENT FENDER
Requested: $185.00 | Original: $0.00
Industry standard blend time per MOTOR Guide
to Estimating and I-CAR Position Statement
on Blend/Tint Operations. OEM Body Repair
Manual (Section 9.2) confirms blending of
adjacent panels is required...

■ ■ ■ Generating citations... ✓
30 seconds to generate
📋 I-CAR + OEM citations included
💰 Avg. $680 recovered per supplement
🔒 No training required — works day one
The Problem

Writing supplements is killing your shop's productivity

Every supplement you skip or half-write is money left on the table. Every hour spent writing is time not spent repairing cars.

⏱️

2–4 hours per supplement

Your estimator manually cross-references Mitchell P-pages, OEM docs, and I-CAR positions just to justify what should have been in the original estimate.

💸

Shops skip valid claims

If writing the supplement takes longer than the recovery is worth, shops just eat the loss. Industry average: 30–40% of legitimate supplement items go unfiled.

📄

Weak letters get denied

Adjusters reject supplements that lack proper citations. Without OEM procedure references and I-CAR position statements, your letter is just an opinion.

🔄

Every insurer is different

State Farm, Allstate, GEICO — each has different DRP agreements, preferred language, and adjuster hot buttons. Tracking it all manually is a full-time job.

From estimate to supplement in 3 steps

No training. No setup complexity. Your estimator can use it on the first day.

1

Enter claim + dispute

Input the claim details and the line items that were underpaid or omitted. Takes 60 seconds.

2

Select reason codes

Choose from pre-built categories: blend time, OEM parts, labor rate, material costs, non-overlapping ops, and more.

3

Generate & send

AI generates a professionally cited supplement letter in 30 seconds. Review, copy, and send to the adjuster.

Get paid

Adjusters receive properly cited, professional letters. Approval rates go up. Recovery goes up. Headaches go down.

30s
Average generation time
$680
Average supplement recovery
15+
Industry citations per letter
40K+
US collision shops eligible

The math is obvious

A shop doing 40 jobs/month with an average supplement recovery of $680 is leaving $27,200 on the table every month they don't use SupplementAI.


At $199/month, SupplementAI pays for itself on the first supplement you write.

40
8
$680
$5,440
$199/mo
$5,241
Early Access Shops

Shop owners love it

Feedback from our beta program. Names changed for privacy during launch period.

★★★★★
"I used to spend Sunday nights writing supplements. Now I generate them in the shop in 30 seconds. My estimator learned it in 10 minutes."
R
Rick M.
Owner, independent shop · Austin, TX · 22 years
★★★★★
"State Farm approved our last three supplements without a single pushback. The citations are exactly what adjusters need to see. Worth every penny."
D
Diana K.
Estimator · Family-owned shop · Phoenix, AZ
★★★★★
"We recovered $8,200 in our first month using SupplementAI. We were filing maybe half the supplements we should have been. Now we file every single one."
T
Tony B.
Owner, 2-location shop · Tampa, FL

One price. Unlimited supplements.

No per-supplement fees. No setup charges. Cancel anytime.

Starter
$99
per month · billed monthly
Perfect for shops doing under 20 jobs/month or just getting started with supplements.
  • Unlimited supplement letters
  • All 7 reason code categories
  • Copy & download output
  • Up to 2 shop users
  • Email support
Start free trial

Multi-location shops (3+)? Contact us for volume pricing.

Common questions

Does this work with my estimating software (CCC, Mitchell, Audatex)? +
Yes. The Pro plan lets you upload your estimate PDF directly and automatically extracts line items. The Starter plan uses a simple form — you enter the disputed items manually, which takes under 2 minutes.
Are the citations actually accurate? +
Yes. Every letter references real industry standards: Mitchell P-pages, I-CAR position statements, SCRS position papers, and OEM Body Repair Manual sections. The citations are reviewed and updated quarterly. We recommend your estimator do a quick sanity check before sending, just as they would with any document.
Will adjusters push back on AI-generated letters? +
Adjusters respond to citations and logic — not to who or what wrote the letter. A well-cited supplement with proper I-CAR and OEM references is more likely to be approved than a hastily written manual letter. Our beta users report the same or better approval rates.
How long does setup take? +
Under 5 minutes. Enter your shop info, and you can generate your first supplement letter immediately. No training required — if your estimator can fill out a form, they can use SupplementAI.
What if I'm not happy with the output? +
Every letter is fully editable before you send it. And if you're not satisfied within your first 14 days, we'll refund your first month — no questions asked.
Can I use this for DRP and non-DRP repairs? +
Absolutely. SupplementAI works for any insurance supplement, whether you're on a DRP or going through standard claims. For DRP shops, the Pro plan includes insurer-specific language tuning that adapts to your program agreement.

Stop leaving money on the table

Join hundreds of collision shops recovering more, faster. Start your free 14-day trial — no credit card required.

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