Auto body supplement letters written in under 90 seconds. Citing I-CAR, OEM procedures, and P-page references that adjusters can't ignore. Flat monthly fee — no per-supplement commissions.
The average shop leaves $1,400+ per claim on the table. Supplement Tool recovers it.
ADAS Calibration
Required after windshield, suspension, or structural repairs — adjusters routinely deny without documentation
Corrosion Protection
Required on all bare metal exposed during repair per OEM procedures — frequently omitted from estimates
Blend Time
Labor for blending adjacent panels to match — P-pages include it but adjusters often exclude it
Setup / Measure Time
Required for frame/unibody repairs — not included in standard repair time but documented in P-pages
OEM vs. Aftermarket Uplift
OEM parts required per manufacturer position statements on structural, safety, and ADAS-equipped vehicles
Overhead & Profit
Standard 10% overhead + 10% profit — adjusters routinely deny it on auto body claims too
No per-supplement fees. No commissions. Just a flat monthly rate.
For shops writing a few supplements a month
5 letters/month
For shops writing supplements every week
Unlimited letters
For MSO groups and high-volume shops
Unlimited letters
All plans include 3 free letters to start. No credit card required.
Supplement Tool vs. writing it yourself vs. hiring a supplement company
| Feature | Manual (DIY) | Supplement Co. | Supplement Tool |
|---|---|---|---|
| Cost per supplement | Free (your time) | 10–15% of recovery | From $97/mo flat |
| Time to write | 2–4 hours | 1–3 days | Under 90 seconds |
| I-CAR citations | You research it | Yes | Auto-cited |
| OEM procedure refs | You look them up | Yes | Auto-referenced |
| Denial rebuttal | Start over | Extra charge | Included |
| Works on mobile | Sort of | N/A | Yes — any device |
| No contracts | N/A | Varies | Month-to-month |
Cost per supplement
Manual
Free (your time)
Supp. Co.
10–15% of recovery
Supp. Tool
From $97/mo flat
Time to write
Manual
2–4 hours
Supp. Co.
1–3 days
Supp. Tool
Under 90 seconds
I-CAR citations
Manual
You research it
Supp. Co.
Yes
Supp. Tool
Auto-cited
OEM procedure refs
Manual
You look them up
Supp. Co.
Yes
Supp. Tool
Auto-referenced
Denial rebuttal
Manual
Start over
Supp. Co.
Extra charge
Supp. Tool
Included
Works on mobile
Manual
Sort of
Supp. Co.
N/A
Supp. Tool
Yes — any device
No contracts
Manual
N/A
Supp. Co.
Varies
Supp. Tool
Month-to-month
"I recovered $2,100 on my first supplement using this tool. The ADAS calibration letter alone paid for 6 months."
Marcus T.
Body Shop Owner, Phoenix AZ
"Adjusters used to ignore my supplements. Now they approve them because the citations are airtight — I-CAR, OEM, P-pages."
Jennifer K.
Collision Center Manager, Dallas TX
"We were leaving $1,400 per car on the table. This tool paid for itself on the first supplement we wrote."
David R.
Auto Body Shop Owner, Atlanta GA
3 free letters included. No credit card required. Cancel anytime.
Try 3 Free LettersMost shops recover $1,400+ on their first supplement