Illustrative data. Every company, asset, document and amount on this page is invented. The findings are computed by the same rules the product uses.
Sample audit
Invoice INV-884213
- Vendor
- Northfield Equipment Rental (illustrative)
- Invoice date
- Mar 20, 2026
- Project
- Harbor Street Medical Office, Phase 2 (illustrative)
- Agreement
- AGR-1042
Summary
- Invoice total
- 9 lines checked
- Confirmed overcharges
- 4 findings, ready to dispute
- Needs evidence
- 1 finding, not counted above
- Cleared
- 3 of 9
- lines match the documents
Needs-evidence amounts are never added to confirmed overcharges.
Findings
Select a finding to see its calculation and sources.
| Line | Finding | Status | Evidence | Amount |
|---|---|---|---|---|
| 1 | 19 ft electric scissor lift #44871: no difference found against the documents in the pack. | Cleared | 1 source | None |
| 2 | 60 ft articulating boom lift #51230 was billed $3,115.00 for 1 × 4-week. At the rates in the agreement, the same units cost $2,850.00. | Confirmed mismatch | 2 sources | $265.00 |
| 3 | 10,000 lb telehandler #60817 was billed through Mar 16, 2026. The off-rent confirmation is dated Mar 9, 2026. | Confirmed mismatch | 4 sources | $1,360.00 |
| 4, 5 | Lines 4 and 5 both bill delivery ticket DT-5521 for asset 60817. The agreement allows one delivery fee per trip. | Confirmed mismatch | 3 sources | $195.00 |
| 6 | Pickup, telehandler #60817: no difference found against the documents in the pack. | Cleared | 1 source | None |
| 7 | The pickup ticket records the tank at 8/8 on Mar 10, 2026. The agreement allows refuelling charges only below full. | Confirmed mismatch | 3 sources | $118.75 |
| 8 | 8,000 lb mini excavator #38804: no difference found against the documents in the pack. | Cleared | 1 source | None |
| 9 | Clause 9.2 waives this fee when a certificate of insurance naming the vendor is on file. The pack does not show whether one was provided, so this is not treated as an error. | Needs evidence | 2 sources1 missing | $318.00 |
Reconstructed timeline
- 03/03BillableDelivered
- 03/04Billable
- 03/05Billable
- 03/06Billable
- 03/07Billable
- 03/08Billable
- 03/09BillableOff-rent confirmed
- 03/10Billed after off-rentPicked up
- 03/11Billed after off-rent
- 03/12Billed after off-rent
- 03/13Billed after off-rent
- 03/14Billed after off-rent
- 03/15Billed after off-rent
- 03/16Billed after off-rent
Dispute draft
Built from confirmed findings only. You review and send it yourself; nothing goes to a vendor automatically.
Subject: Credit request: invoice INV-884213, $1,938.75
To: Northfield Equipment Rental (illustrative), billing department
Re: Invoice INV-884213 dated Mar 20, 2026, agreement AGR-1042
We reviewed invoice INV-884213 against agreement AGR-1042 and the delivery, off-rent and pickup records for this project. We request a credit of $1,938.75 for the following charges:
1. Rate higher than the agreement: $265.00
60 ft articulating boom lift #51230 was billed $3,115.00 for 1 × 4-week. At the rates in the agreement, the same units cost $2,850.00.
Calculation:
Billed units: 1 × 4-week
Invoiced amount: $3,115.00
Same units at agreement rates: $2,850.00
Overcharge: $3,115.00 − $2,850.00 = $265.00
Supporting documents: Rental invoice INV-884213, p. 1, Line 2; Exhibit A: rate schedule AGR-1042-A, p. 1, Row 6
2. 7 days billed after off-rent: $1,360.00
10,000 lb telehandler #60817 was billed through Mar 16, 2026. The off-rent confirmation is dated Mar 9, 2026.
Calculation:
Billed period: Mar 3, 2026 to Mar 16, 2026 (14 days)
Off-rent confirmed: Mar 9, 2026
Billable period: Mar 3, 2026 to Mar 9, 2026 (7 days)
Days billed after: Mar 10, 2026 to Mar 16, 2026 (7 days)
Billed: 2 weekly periods × $1,360.00 = $2,720.00
Lowest charge for 7 billable days (Mar 3, 2026 to Mar 9, 2026): 1 weekly period × $1,360.00 = $1,360.00
Overcharge: $2,720.00 − $1,360.00 = $1,360.00
Supporting documents: Rental invoice INV-884213, p. 1, Line 3; Off-rent confirmation email OR-2291, p. 1, Email body; Master rental agreement AGR-1042, p. 3, Clause 6.3; Exhibit A: rate schedule AGR-1042-A, p. 1, Row 7
3. Duplicate delivery fee: $195.00
Lines 4 and 5 both bill delivery ticket DT-5521 for asset 60817. The agreement allows one delivery fee per trip.
Calculation:
Line 4: DT-5521, $195.00
Line 5: DT-5521, $195.00
Trips on the ticket: 1
Overcharge: $195.00 (second charge for the same trip)
Supporting documents: Rental invoice INV-884213, p. 1, Line 4; Rental invoice INV-884213, p. 2, Line 5; Master rental agreement AGR-1042, p. 3, Clause 5.2
4. Fuel charged on a full-tank return: $118.75
The pickup ticket records the tank at 8/8 on Mar 10, 2026. The agreement allows refuelling charges only below full.
Calculation:
Invoiced: 19 gal × $6.25 = $118.75
Fuel at pickup: 8/8 (full)
Gallons chargeable: 0
Overcharge: $118.75
Supporting documents: Rental invoice INV-884213, p. 2, Line 7; Pickup ticket PU-3390, p. 1, Fuel and hour meter box; Master rental agreement AGR-1042, p. 4, Clause 7.1
Requested credit: $1,938.75
Copies of the supporting documents are attached. Please confirm the credit memo number and amount, or tell us which item you dispute and why.
Example Builders LLC (illustrative)Held back from this dispute
- Damage waiver may not apply ($318.00): waiting for evidence, so it is not claimed.
Document pack
Master rental agreement
AGR-1042 · PDF · 6 pages
Exhibit A: rate schedule
AGR-1042-A · Excel · 1 page
Rental invoice
INV-884213 · PDF · 2 pages
Delivery ticket
DT-5521 · Phone photo · 1 page
Off-rent confirmation email
OR-2291 · PDF · 1 page
Pickup ticket
PU-3390 · Phone photo · 1 page
Certificate of insurance
Not in the pack