Credit Note / Reversal Agent
Correctly distinguish credit notes and reversals for tax purposes, assign, post the offsetting entry.
Classifies incoming documents as credit note or reversal invoice, identifies the reference invoice, validates amounts and creates GoBD-compliant offsetting entries with correct VAT treatment.
Score Dashboard
What This Agent Does
The distinction between a credit note and a reversal invoice is tax-critical - and a frequent source of errors. Both reduce a receivable or payable, but the VAT treatment is fundamentally different. Errors here lead to incorrect VAT returns.
The Decision Layer breaks the credit note / reversal process into seven decision steps. The AI Agent classifies the document type - the tax-correct distinction per Paragraph 14 UStG. The rule engine identifies the reference invoice, validates amounts, calculates the VAT correction and creates the offsetting entry. The GoBD-compliant linking to the original document is automatic.
The result: tax-correct processing of every credit note and every reversal. No more manual VAT corrections. Every offsetting entry is linked to the original document and traceable for tax audits.
Micro-Decision Table
Classify document type Credit note or reversal invoice? AI Agent Vendor
LLM classification - tax-critical per Paragraph 14 UStG
Decision Record
Challengeable: Yes - fully documented, reviewable by humans, objection via formal process.
Challengeable by: Vendor
Identify reference invoice (with reference) Which original invoice is referenced? Rules Engine Vendor
Assignment via reference number from the document
Decision Record
Challengeable: Yes - rule application verifiable. Objection possible for incorrect data or wrong rule version.
Challengeable by: Vendor
Identify reference invoice (without reference) Which original invoice matches when reference is missing? AI Agent Vendor
AI assignment via vendor, amount and period
Decision Record
Challengeable: Yes - fully documented, reviewable by humans, objection via formal process.
Challengeable by: Vendor
Validate amount Is the credit note amount less than or equal to the original? Rules Engine Vendor
Numerical comparison with original invoice amount
Decision Record
Challengeable: Yes - rule application verifiable. Objection possible for incorrect data or wrong rule version.
Challengeable by: Vendor
Calculate VAT correction How much is the VAT correction? Rules Engine Auditor
UStG-compliant calculation based on original tax rate
Decision Record
Challengeable: Yes - rule application verifiable. Objection possible for incorrect data or wrong rule version.
Challengeable by: Auditor
Create offsetting entry What is the reversal journal entry? Rules Engine Auditor
Mirroring the original posting on the correct accounts
Decision Record
Challengeable: Yes - rule application verifiable. Objection possible for incorrect data or wrong rule version.
Challengeable by: Auditor
GoBD-compliant linking Is the credit note linked to the original document and archived? Rules Engine Auditor
Paragraph 14 UStG - credit note and reversal correctly distinguished and archived for tax purposes
Decision Record
Challengeable: Yes - rule application verifiable. Objection possible for incorrect data or wrong rule version.
Challengeable by: Auditor
Decision Record and Right to Challenge
Every decision this agent makes or prepares is documented in a complete decision record. Affected parties (employees, suppliers, auditors) can review, understand, and challenge every individual decision.
Prerequisites
- ERP system with accounts payable
- Access to original invoices and postings
- Configured chart of accounts with reversal accounts
- GoBD-compliant archiving system with document linking
Governance Notes
GoBD relevance: high - the tax-correct distinction between credit note and reversal invoice is a frequent audit focus. Paragraph 14 UStG defines the requirements. Incorrect assignment leads to incorrect VAT returns and potential back-payments. Every offsetting entry must be linked to the original document - the GoBD principle of progressive and retrograde verifiability.
§203 StGB-relevant data is encrypted end-to-end and never passed to AI models in plain text.
Process Documentation Contribution
Infrastructure Contribution
The Credit Note / Reversal Agent uses the document classification of the Invoice Capture Agent and the posting logic of the Account Coding Agent. The GoBD-compliant linking pattern (document to document) is reused by all agents that create correction postings - the Payroll Correction Agent, Cash Application Agent and month-end closing agents.
Related Agents
Invoice Capture Agent
Read incoming invoices, verify mandatory fields, extract data - archived in GoBD-compliant format.
Account Coding Agent
GL account, cost centre, tax code - automatically coded, with confidence score.
Three-Way Matching Agent
Purchase order, delivery note, invoice - automatically matched, discrepancies routed.
Frequently Asked Questions
Why is the credit note vs. reversal distinction so important?
A vendor credit note (Paragraph 14 UStG) is a standalone document with its own VAT reporting. A reversal invoice cancels the original invoice. The VAT treatment differs. Confusion leads to incorrect VAT returns and back-payments during tax audits.
What happens with partial credit notes?
The agent processes partial credit notes correctly. The amount is checked against the original invoice (less than or equal). The VAT correction is calculated proportionally. The original invoice remains open with the residual amount.
How reliable is the AI classification?
The classification includes a confidence score. At low confidence, it is routed to a clerk. Additionally, the rule engine checks the tax implications of the classification - an additional safety net beyond the AI decision.
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