Collision parts price changes: reconcile approval and payment

Updated 2026-10-04 | 4 minute read | By BlueFinch Advisors

Collision parts-change approval worksheet

Connect supplier changes to the current accepted estimate and payment decision.

No signup. Enter reference codes, add records and download a CSV. Entries stay in the browser tab. Filled fields do not establish completion, approval or compliance.

Fictional example rows
Job reference	Supplier change and amount reference	Current estimate version	Old and new part amounts	Applicable approval evidence	Revised payment decision	Responsible office role
Collision-job-example-6	Supplier-change-example	Estimate-version-example	420 to 510, illustrative		No revised collection yet	Estimator-role

Starting records are fictional examples, not merchant evidence.
Keep private documents and actual contacts in your approved business system. Use internal reference codes here.
Missing required fields indicate an unresolved record. Filled fields do not prove authorization, completion, compatibility or compliance.
Export to approved business storage. Browser edits are cleared on reload.

Download the fictional example (CSV)

Assorted automotive metal components arranged on a workshop surface. — Photo by Tahamie Farooqui on Unsplash. Stock photography. Photo license.

A supplier price change should lead to a documented estimate review before a new body-shop collection. Identify the changed part, current accepted invoice version and responsible payer. Obtain the applicable approval and update the customer balance from the approved change. Do not simply increase a payment link because the latest supplier invoice is higher than the amount originally quoted.

Use with this guide

parts-return credit guide

The parts-return credit guide covers returned components and the separate customer refund decision.

post-payment supplement worksheet

Use the post-payment supplement worksheet when the approved scope changes after an earlier collection.

Browse the complete auto body guides and worksheets.

Trace the change to a specific part and version

Determine the quoted part amount and supplier invoice revised amount for change. Establish the reasons for the difference between quoted part amount and supplier revised amount (price, quantity, availability, freight, etc.). Link supplier records to the estimating supplier record and estimate version to reference internal document numbers for tracking purposes.

Check whether the current accepted scope already includes the revised item. A supplier update and an insurer supplement approval are separate records. The shop’s agreements and applicable repair requirements determine the approval needed for the revised work or price. This worksheet does not establish a universal right to charge the customer or decide which party must absorb the increase. The parts-return credit guide covers returned components and the separate customer refund decision.

Record the responsible payer and approval evidence

Determine whether the difference is related to work approved by the insurer and/or to be paid by the customer, or if the difference is to be allocated. It is not automatically a customer charge. Ask the estimator or owner of the estimate for the correct action and keep a copy of the evidence used to make the decision. If the difference is to be allocated but the allocation is unresolved then keep the new collection on hold until the matter is resolved.

The parts-change worksheet records the job reference, supplier change reference, old and new part amounts, current estimate version, approval evidence, revised payment decision and office owner. Keep actual customer or claim information outside the public tool. The register is a handoff record, not the formal estimate or authorization document your business must maintain.

Calculate the difference without charging twice

Consider an illustrative part quoted at $420 and later supplied at $510 for the same quantity. The $90 difference is the starting review amount before tax, freight or other changes. It is not an automatic $90 customer charge. If the approved invoice already includes $510, adding another $90 would duplicate the increase. Compare the current accepted version before updating the payment request.

Also list the previous collections and the amounts of the credits in this worksheet. A deposit collected against a previous estimate of work for a repair job needs to be recorded as part of the payment history for that estimate of work for that repair job. Therefore update the remaining balance from the approved total for the repair job after verifying all of the approved allocations for that repair job. A supplier credit has to be tracked separately from a customer refund, i.e. a pending supplier credit does not necessarily mean that a customer refund has been completed.

Verify the final invoice and collection handoff

After approval, confirm the advisor and bookkeeper see the same current estimate version. Test the supported invoice-to-payment handoff with fictional records where a price changes after a deposit. Check whether the old link remains usable, how the new balance appears and which reference identifies the current collection. Document actual behavior rather than claiming every estimating system handles revisions automatically.

Close the worksheet row when the approved change, invoice balance and payment action agree. Preserve the previous version and correction history in controlled storage. The next delivery advisor should be able to explain the accepted total and remaining balance without reconstructing supplier emails. Review repeated differences by cause so the shop corrects the estimating or purchasing step responsible for the problem. Use the post-payment supplement worksheet when the approved scope changes after an earlier collection.

Primary sources

BlueFinch last reviewed these sources on October 4, 2026. Payment rules and state requirements can change.

Use this page for general business information. It is not legal, tax, or accounting advice.