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.

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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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