An incorrect invoice in the car trade? Then a reversal invoice is often the only legally compliant way to properly undo the transaction. Whether incorrect amounts, retroactive price reductions, or a completely canceled vehicle delivery – as a car dealer, you need to know when and how to issue a reversal invoice, which mandatory details apply, and how the posting works in DATEV. In this guide, you will learn everything important about the reversal invoice – including a template, step-by-step instructions, and tips specifically for the car trade.
What is a reversal invoice? Definition and distinction
A reversal invoice (also known as a cancellation invoice) is a commercial document that fully or partially annuls a previously issued invoice. It contains the same items as the original invoice, but with reversed signs – that is, negative amounts. This neutralizes the original claim in the books.
Important: A reversal invoice is not a new invoice, but a correction document. It always refers to a specific original invoice and must clearly reference it. As a result, the claim from the original invoice is set to zero.
Reversal invoice, credit note, or invoice correction – what is the difference?
In everyday practice, the terms reversal invoice, credit note, and invoice correction are often used interchangeably. Legally and in accounting, however, there are significant differences that are particularly relevant in the car trade with e-invoicing and tax office audits.
| Feature | Reversal invoice | Credit note (Section 14(2) sentence 2 UStG) | Invoice correction (Section 14(6) no. 5 UStG) |
|---|---|---|---|
| Issuer | Invoice issuer (seller) | Recipient of the service (buyer) | Invoice issuer (seller) |
| Purpose | Complete annulment of the original invoice | Billing by the buyer (credit note procedure) | Correction of individual incorrect details |
| Scope | Entire invoice is canceled | Independent billing document | Only incorrect items/details are corrected |
| Amounts | Negative amounts (mirror image of the original invoice) | Positive amounts (new billing) | Only difference amounts or corrected values |
| Reference | Must reference the original invoice | Must reference the underlying transaction | Must reference the original invoice |
| New invoice required? | Yes – after reversal, a new invoice is issued | No – it is independent | No – it corrects the existing invoice |
| Typical use | Incorrect invoice, withdrawal, unwinding | Supplier credit note, commission statement | Typo, wrong address, wrong tax rate |
When do you need a reversal invoice?
Not every error requires a complete cancellation. Sometimes an invoice correction is sufficient. The following overview shows when a reversal invoice is the right approach:
Typical occasions in the car trade
- Incorrect invoice: Wrong customer, wrong vehicle, wrong total amount, or completely incorrect invoicing – correcting individual fields is not sufficient.
- Withdrawal from the purchase contract: The buyer withdraws from the purchase contract (e.g., due to defects) and the vehicle is returned.
- Unwinding of a leasing transaction: Incorrect leasing transfer or canceled financing.
- Retroactive price reduction: When the discount is so substantial that a new invoice makes more sense than a correction.
- Duplicate invoicing: Two invoices accidentally created for the same vehicle – one must be canceled.
- Change of taxation method: A vehicle was taxed under standard taxation, although margin taxation under Section 25a UStG should have been applied (or vice versa).
Rule of thumb: If more than two details on the invoice are incorrect or the error affects the core of the business transaction (wrong customer, wrong vehicle, wrong taxation method), a reversal invoice plus reissue is the safest approach.
Legal requirements for the reversal invoice (Section 14 UStG)
A reversal invoice must – just like a regular invoice – contain the mandatory details pursuant to Section 14(4) UStG. In addition, there are specific requirements arising from the corrective function of the document.
Mandatory details on the reversal invoice
- Full name and address of the service provider (car dealership/dealer) and the service recipient (buyer)
- Tax number or VAT ID number of the invoice issuer
- Sequential invoice number for the reversal invoice (its own number!)
- Issue date of the reversal invoice
- Clear designation as a reversal invoice (e.g., “Reversal Invoice” or “Cancellation of Invoice No. …”)
- Reference to the original invoice (invoice number and date of the canceled invoice)
- Quantity and type of delivery (identical to the original invoice, e.g., vehicle with VIN)
- Net amount, tax amount, and tax rate – each with a negative sign
- Date of supply or service (as in the original invoice)
- Where applicable, note on margin taxation under Section 25a UStG
Creating a reversal invoice: Step-by-step guide
Here is how to create a legally compliant reversal invoice for your car business – manually or with invoicing software:
Step 1: Identify the original invoice
Find the incorrect or to-be-canceled invoice. Note the invoice number, date, customer, and amount. In an invoicing software for car dealers, entering the invoice number is usually sufficient.
Step 2: Document the reason for reversal
Record internally why the cancellation is taking place (e.g., “buyer’s withdrawal due to defect,” “incorrect taxation method”). This is important for accounting and a potential tax audit.
Step 3: Create the reversal invoice with its own number
Create a new document with its own sequential invoice number. Copy all items from the original invoice, but with negative amounts. Clearly reference the original invoice in the header.
Step 4: Check mandatory details
Verify that all the mandatory details listed above pursuant to Section 14 UStG are included – especially the reference to the original invoice, the correct designation as “Reversal Invoice,” and the negative amounts including tax disclosure.
Step 5: Send the reversal invoice
Send the reversal invoice to the customer – ideally as an e-invoice in ZUGFeRD or XRechnung format, to remain GoBD-compliant. The customer needs the document for their own accounting.
Step 6: Issue a new invoice (if applicable)
If the business transaction still stands (e.g., with corrected data), subsequently create a new, correct invoice. This also receives its own sequential number. Optionally reference the reversal invoice.
Numbering the reversal invoice: Separate number range or not?
A frequently asked question: Does the reversal invoice need its own number series, or is it maintained within the regular invoice number range?
What does the law say?
The UStG only requires a sequential, unique invoice number (Section 14(4) no. 4 UStG). Whether reversal invoices are maintained in a separate number range is left to the business owner. Both approaches are permissible:
| Approach | Example | Advantages | Disadvantages |
|---|---|---|---|
| Shared number range | RE-2026-0451 (invoice), RE-2026-0452 (reversal) | Simple, one system for everything | Reversals not immediately identifiable |
| Separate number range | RE-2026-0451 (invoice), ST-2026-0012 (reversal) | Immediately identifiable, clean reporting | Two number ranges to maintain |
Recommendation for car dealers: Use a separate number range with the prefix “ST” or “STORNO.” This way, you, your tax advisor, and the tax office can see at a glance which documents are cancellations. Most modern invoicing software solutions support multiple number ranges out of the box.
Reversal invoice and margin taxation (Section 25a UStG)
In the used car trade, margin taxation under Section 25a UStG is the standard. When canceling invoices with margin taxation, there are specific considerations you need to be aware of:
Special considerations for Section 25a invoices
- No open tax disclosure: On the reversal invoice – just like on the original invoice – no VAT may be separately disclosed. The note “Margin taxation under Section 25a UStG – VAT is not separately disclosed” must also appear on the reversal invoice.
- Margin is neutralized: The cancellation eliminates the difference between the purchase and sale price – the margin is eliminated in the books. For a subsequent recalculation, the margin may need to be recalculated.
- Vehicle-specific calculation: Since margin taxation is calculated on a per-vehicle basis (individual difference), the reversal invoice must contain the VIN (Vehicle Identification Number) to ensure clear assignment.
- No input tax deduction: Since no input tax deduction is possible for Section 25a transactions, the cancellation has no effect on the buyer’s input tax. The reversal only affects the dealer’s VAT return.
DATEV posting of reversal invoices
The correct posting in DATEV is essential to keep your accounting clean and avoid follow-up questions from your tax advisor.
Posting schemas for reversal invoices
| Business transaction | Posting entry (SKR03) | Posting entry (SKR04) |
|---|---|---|
| Reversal of vehicle sale (standard taxation) | Revenue 19% (8400) to Receivables (1400) – negative | Revenue 19% (4400) to Receivables (1200) – negative |
| Reversal of vehicle sale (Section 25a) | Revenue Section 25a (8309) to Receivables (1400) – negative | Revenue Section 25a (4309) to Receivables (1200) – negative |
| Reversal of parts sale (19%) | Revenue 19% (8400) to Receivables (1400) – negative | Revenue 19% (4400) to Receivables (1200) – negative |
DATEV tip: Always post reversal invoices as negative entries on the same accounts as the original invoice – not as an expense or miscellaneous correction. This keeps the accounts consistent and the VAT return is automatically adjusted correctly. In DATEV, you can generate an automatic counter-entry via the document type “Reversal.”
DATEV export and interface integration
Modern accounting software for car dealers automatically exports reversal invoices in DATEV format. Make sure that:
- The posting key is correctly marked as a reversal entry
- The document number of the reversal invoice is carried over in the DATEV export
- The reference to the original invoice is exported as posting text or additional field
- For Section 25a transactions, the correct tax key (without VAT disclosure) is used
GoBD compliance: The original invoice must be preserved
A common mistake in practice: The original invoice is deleted or overwritten after cancellation. This violates the GoBD (Principles for the Proper Management and Storage of Books, Records, and Documents in Electronic Form).
What the GoBD require for reversals
- Immutability: The original invoice must be preserved in its original state – even after cancellation. It may neither be deleted nor altered in content.
- Traceability: The connection between the original invoice and the reversal invoice must be traceable at all times (e.g., through mutual reference numbers).
- Retention period: Both the original invoice and the reversal invoice must be retained for 10 years (Section 147 AO).
- Process documentation: The reversal process should be described in your process documentation – particularly who is authorized to cancel, how approval is granted, and how archiving is ensured.
- Logging: Changes to invoice status (e.g., from “active” to “canceled”) must be logged with a timestamp, user, and reason.
Common mistakes with reversal invoices in the car trade
From practice, we know the typical pitfalls that car dealers repeatedly encounter with reversal invoices:
| Mistake | Consequence | Correct approach |
|---|---|---|
| “Credit note” instead of “Reversal invoice” as title | Tax office may deny input tax deduction for the buyer | Always use “Reversal Invoice” or “Invoice Cancellation” as the title |
| No reference to the original invoice | Assignment not possible, tax audit objects | Always state the invoice number and date of the original invoice |
| Positive instead of negative amounts | Revenue is doubled instead of neutralized | All amounts (net, VAT, gross) with negative sign |
| Original invoice deleted | GoBD violation, tax office’s estimation authority | Archive the original invoice and mark it as “canceled” |
| No separate invoice number | Violation of Section 14(4) UStG | Reversal invoice receives its own sequential number |
| Reversal under Section 25a with VAT disclosure | Unauthorized tax disclosure leads to tax liability under Section 14c UStG | Do not separately disclose VAT on the reversal invoice either |
| Reversal reason not documented | Auditor raises questions, delays | Document the reversal reason internally and note it on the invoice if applicable |
Automatically creating reversal invoices with AutoPult
Manually creating reversal invoices is error-prone and time-consuming – especially when you as a car dealer juggle standard taxation, margin taxation, and various document types on a daily basis.
How the automatic reversal process works in AutoPult
- One-click reversal: Select the invoice to be canceled and click “Cancel.” AutoPult automatically creates a reversal invoice with all mandatory details, correct reference, and negative amounts.
- Automatic numbering: The reversal invoice automatically receives a number from the separate reversal number range – configurable to your preferences.
- Section 25a detection: AutoPult automatically detects whether the original invoice used margin taxation and creates the reversal invoice accordingly – without accidental VAT disclosure.
- GoBD-compliant archiving: The original invoice is automatically marked as “canceled” but remains preserved in its original form. Both documents are linked and archived in an audit-proof manner.
- DATEV export: Reversal invoices are automatically prepared correctly for the DATEV export – with the right posting key, tax key, and reference.
- E-invoice format: Reversal invoices are generated on request directly as ZUGFeRD or XRechnung – so you remain e-invoice compliant even for reversals.
Time-saving: AutoPult users report that the automatic reversal process reduces processing time per cancellation from an average of 15–20 minutes to under 30 seconds – while achieving higher quality and GoBD compliance.
Template: Sample reversal invoice for car dealers
The following template shows what a correct reversal invoice in the car trade looks like. Adapt the details to your specific case:
| Reversal Invoice – Sample | |
|---|---|
| Document type | Reversal Invoice |
| Reversal invoice no. | ST-2026-0042 |
| Date | 04/11/2026 |
| Reference to invoice | RE-2026-0389 dated 03/28/2026 |
| Reason for cancellation | Withdrawal from purchase contract due to defect |
| Invoice issuer | Sample Car Dealership GmbH, Maria-Haas-Str. 4, 12345 Sample City VAT ID: DE123456789 |
| Service recipient | Max Sample, Exampleweg 5, 54321 Example City |
| Service description | Used vehicle VW Golf 8 Life VIN: WVWZZZ1KZMP012345 First registration: 03/2022, mileage: 35,420 km |
| Delivery date | 03/28/2026 (as per original invoice) |
| Net amount | -18,487.39 EUR |
| VAT 19% | -3,512.61 EUR |
| Gross amount | -22,000.00 EUR |
Note: For margin taxation under Section 25a UStG, the “Net amount” and “VAT 19%” lines are omitted. Instead, only the gross amount appears with the note: “Used goods / special scheme – VAT is not separately disclosed.” Learn more in our guide on writing invoices as a car dealer.
Frequently Asked Questions (FAQ)
Is a reversal invoice the same as a credit note?
No. A reversal invoice is issued by the invoice issuer (seller) and annuls an incorrect or no longer valid invoice. A credit note in the VAT sense, on the other hand, is issued by the service recipient (buyer) and is an independent billing document under Section 14(2) sentence 2 UStG. Always use the correct term on the document.
Do I have to send the reversal invoice to the customer?
Yes. The customer needs the reversal invoice for their own accounting – particularly to correct their input tax deduction (under standard taxation). Send the reversal invoice via the same channel as the original invoice.
Can I simply delete an invoice instead of canceling it?
No, absolutely not. The GoBD prohibit the deletion of invoices. An invoice that has been created and sent must be archived. The correct approach is always cancellation with a reversal invoice.
How does the reversal invoice affect the VAT return?
The reversal invoice reduces your revenue in the reporting period of the cancellation. The negative amount is taken into account in line 26 (standard taxation) or in the margin calculation (Section 25a). The correction does not apply retroactively but in the month of the cancellation.
Does the reversal invoice need its own invoice number?
Yes, mandatory. The reversal invoice is an independent document and requires its own sequential number under Section 14(4) no. 4 UStG. It must not carry the same number as the original invoice.
What happens if I accidentally disclose VAT on the reversal invoice even though Section 25a applies?
Then you owe the disclosed VAT under Section 14c(1) UStG – even if it would not be materially owed. Correct the error immediately with another reversal invoice and create a correct version without VAT disclosure.
How long must reversal invoices be retained?
Reversal invoices are subject to the same retention period as regular invoices: 10 years from the end of the calendar year of issue (Section 147(1) no. 1 AO). This applies equally to paper and electronic invoices.
Conclusion: Creating reversal invoices correctly and saving time
The reversal invoice is an indispensable tool for every car dealer who wants to keep their accounting clean and audit-proof. The key points summarized:
- Reversal invoice is not the same as a credit note: Always use the correct term on the document.
- Observe mandatory details: All details pursuant to Section 14 UStG plus reference to the original invoice and designation as a reversal invoice.
- Comply with GoBD: Never delete the original invoice – only mark it as canceled and archive both documents.
- Observe Section 25a: Never disclose VAT on the reversal invoice for margin-taxed vehicles.
- Post DATEV-compliant: Post reversals as negative entries on the original accounts.
- Automate: A professional invoicing software like AutoPult creates reversal invoices with one click – GoBD-compliant, DATEV-ready, and with the correct taxation method.
Next steps: Learn how to automate not only reversal invoices with AutoPult, but also regular invoices, e-invoices, and the complete DATEV export. Try AutoPult for free and experience how simple invoice management in the car trade can be.
