3PL Accessorial Overcharge Checker

Compare billed accessorial fees to contracted expectations and quantify overcharges.

Educational only. Verify contract terms and required evidence before disputing.

Processed in-browser. Nothing is stored.

Inputs

Set a tolerance (e.g., 0-5%) before flagging an overcharge

Accessorial line items

AccessorialUnit rateUnitsExpected (if no units)BilledEvidenceExpectedOverchargeActions
$0$0

If units are provided, expected uses unit rate times units. Otherwise it uses the expected amount field.

Results

Enter inputs and click Calculate.

How to Use

  1. Pull your contracted accessorial rate table and your 3PL invoice lines.
  2. Enter each line item. Include units when the charge is unit-based.
  3. Set an allowed variance percent if your contract permits small rounding differences.
  4. Calculate, then copy the dispute summary and attach invoice line evidence requests.

What Results Mean

Expected is based on unit rate times units, or the expected amount field if units are not provided.

Allowed max is expected multiplied by (1 + allowed variance).

Overcharge is any billed amount above the allowed max.

Common Pitfalls

  • Using the wrong unit basis (per pallet, per stop, per order, per carton).
  • Not separating one-time surcharges from recurring accessorials.
  • Disputing without requesting the evidence required by contract language.

Change log

v1.0 (2026-01): Latest release