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Supplement letters that
actually get approved

Stop losing money on weak supplement narratives. SupplementAI generates professional, OEM-cited letters in 45 seconds — the kind adjusters can't ignore.

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No credit card. First 3 letters free. Takes 45 seconds.

What you get

A letter that gets paid — not ignored

supplement_state_farm_RO4421.txt

April 28, 2026

John Smith, Appraiser — State Farm Insurance
Claim No: SF-2026-8841203

Re: Supplement Request — 2022 Toyota Camry / Maria Rodriguez / RO #4421

Dear Mr. Smith,

This letter serves as a formal supplement request. Following complete teardown, our
technicians identified additional damage and required operations not included in your
initial estimate of $3,200.00. We are requesting authorization for an additional
$1,450.00 necessary to restore this vehicle to pre-loss condition as required
by your insured's policy.

Pre- and Post-Repair Scanning ($189.00): Toyota Motor Corporation's published
repair procedure explicitly requires diagnostic scanning prior to and following any
collision repair on all ADAS-equipped vehicles. The 2022 Camry has Toyota Safety
Sense 2.5+. This is not optional — it is mandated per Toyota Position Statement
(March 2024). Failure creates safety and liability exposure.

Corrosion Protection — Inner Rocker Panel ($340.00): Teardown revealed
rust-through on the inner rocker panel not visible during exterior inspection.
Per I-CAR OEM repair procedures and your policy's obligation to restore the vehicle
to pre-loss condition, full corrosion treatment per manufacturer specifications is
required. We request written authorization within 5 business days.

Respectfully,
Garcia's Collision Center

Three steps

From denied to approved in under a minute

Fill in job details

Shop name, insurer, adjuster, vehicle, and claim number. 90 seconds to complete.

Describe what was denied

Type the supplement items, teardown findings, and any notes for the adjuster.

Get your letter

A full professional narrative — OEM citations, policy language, ready to send.

Coverage

Handles every supplement situation

Pre/post scan denial

Cites OEM Position Statements and ADAS requirements by make and model.

Corrosion protection

References I-CAR procedures for hidden rust and corrosion treatment requirements.

OEM alignment procedures

Documents why dealer-level alignment is required post-repair for specific makes.

Blend operations

Justifies color blending on adjacent panels using industry-standard refinish procedures.

Hidden teardown damage

Documents rust, prior repairs, and structural damage found after initial estimate.

R&I and R&R operations

Justifies remove/install and remove/replace labor times with procedure-based reasoning.

Before vs after

Stop writing supplements the hard way

Before SupplementAI

⏱2–4 hours writing one supplement letter

📉Generic language adjusters know how to deny

❓No OEM citations — just your word vs. theirs

💸$500–$2,500 left on the table per job

😤Estimator time wasted fighting paperwork

With SupplementAI

⚡45-second letter with OEM citations

📄Firm, policy-referenced language adjusters respect

✅I-CAR, OEM Position Statements cited automatically

💰Recover what you're owed on every job

🎯Estimator focuses on repairs, not paperwork

By the numbers

The supplement problem is real

85%

of collision repairs require at least one supplement

$1,200

average value left on table per weak supplement letter

3 hrs

average time writing one strong supplement manually

36K

body shops in the US doing this manually right now

Try it free

Generate your first supplement letter

No account needed. First 3 letters free.

Shop & claim info

Shop name *

Shop address

Insurance company *

Adjuster name *

Claim number

Vehicle owner

Vehicle

Year / Make / Model

VIN (optional)

Supplement details

Original approved amount ($)

Supplement amount requested ($)

Items supplemented — what was denied or not included *

Additional damage found during teardown

Additional notes (optional)

Writing your supplement letter...

Citing OEM procedures and building your case

Your supplement letter

Review before sending. Verify all amounts and findings match your actual repair documentation.

Pricing

Simple. Pays for itself on the first job.

Starter

Free

Try it with no commitment. See the difference before you pay.

✓3 supplement letters
✓All letter types
✓No account required

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Questions

Are these letters actually good enough to send?

Yes — professional grade. They cite OEM Position Statements, I-CAR procedures, and reference the insurer's policy obligation to restore the vehicle to pre-loss condition. Your estimator should review and sign off, but the heavy lifting is done.

Does it work with CCC ONE, Mitchell, and Audatex?

Copy and paste your supplement line items directly from any estimating platform. No need to export files.

Does it know OEM procedures by make and model?

Yes. The AI applies relevant manufacturer requirements for scanning, alignment, corrosion protection, and structural repair based on the vehicle you enter.

How much does this realistically recover per month?

A shop running 40 jobs/month with even a 20% supplement improvement rate at $800/supplement = $6,400/month recovered. The $149 subscription pays for itself on the first approved letter.

Can I cancel anytime?

Absolutely. No contracts, no cancellation fees.

Supplement letters thatactually get approved