FAQ
Frequently asked questions
If something here is unclear, contact us and we will answer it directly.
- What documents should I upload?
- Always upload the invoice you are questioning. Then upload anything that states what the price or quantity should have been: a quote, contract, rate sheet, pricing notice, purchase order, delivery receipt, bill of lading, tax schedule or a prior invoice from the same vendor.
- What if I only have the invoice?
- You can still run an audit. Without supporting documents the analysis is limited to internal checks such as arithmetic, duplicated lines and quantity-versus-total consistency. Findings will be marked as needing more evidence where a comparison document is required.
- Does Invoice Investigator tell me I was overcharged?
- It tells you what your documents support and where the invoice differs, with the evidence and the dollar impact. Differences are labelled as verified, possible, likely, or insufficient evidence. Where a difference could have a legitimate explanation such as freight, margin or a tax change, that is stated instead of calling it an error.
- How many invoices can I check on each plan?
- Single Audit covers one invoice. Small Business includes up to 50 invoices checked per billing period. Gas Station Unlimited has no fixed allowance, subject to a fair-use ceiling of 600 invoices checked per month. Enterprise Unlimited has no fixed allowance, subject to a fair-use ceiling of 2,500 invoices checked per month. Supporting documents you attach to an invoice - quotes, price notices, contracts, rate sheets, delivery tickets, bills of lading - never count toward an allowance, and neither do vendor reference documents you store once. Re-running an audit does not count again. If you reach your allowance, the invoice waits and you can upgrade or buy a single audit; nothing is charged automatically and we contact you before restricting an account.
- How long are my documents kept?
- Uploaded invoices and supporting documents are deleted automatically 30 days after upload. You can delete them sooner from Documents & retention. Vendor reference documents are kept until you delete them. Audit results, findings and reports remain with your account until you delete them or close the account.
- What is the refund policy?
- Unused Single Audit credits are refundable on request within 30 days of purchase. Subscription charges are not prorated. If the service fails to produce a completed audit, we return the credit and refund that purchase. Email support@invoiceinvestigator.com to request a refund.
- Who can see my documents?
- Documents are stored in private storage and are only reachable through short-lived signed links issued to members of your workspace. Roles control who can upload, who can read, and who can manage members.
- Is this legal or accounting advice?
- No. Invoice Investigator provides document-analysis assistance. It is not a law firm, accounting firm, tax adviser, auditor of record, or a substitute for professional review.
- How is the analysis performed?
- Uploaded documents are read by AI-powered document analysis, and every reported figure is tied back to the document and page it came from. Dollar impact is calculated arithmetically from the extracted values, not estimated.