Bad Debt Relief and VAT: Recovering VAT on Unpaid Debts Across Europe

Bad debt relief is a VAT mechanism that allows businesses to recover VAT previously accounted for on supplies where payment is ultimately not received. VAT generally becomes due when a taxable supply takes place, often before payment is received. As a result, suppliers may be required to remit VAT to the tax authorities even though they have not yet received, and may never receive, payment.

Bad debt relief prevents businesses from bearing the VAT cost on income that is never collected. Once the relevant legal conditions are met, businesses can adjust the VAT previously declared, ensuring that VAT is ultimately borne by the final consumer rather than the supplier. While this objective is common across many jurisdictions, the eligibility rules and claims process vary significantly between countries.

Bad Debt Relief in Both B2C and B2B Transactions

Bad debt relief applies to both business-to-consumer (B2C) and business-to-business (B2B) transactions, although the nature of unpaid debts differs.

In the B2C sector, businesses such as e-commerce retailers and distance sellers often deal with large volumes of relatively low-value unpaid invoices. These may result from failed payments, cancelled direct debits, or customers becoming uncontactable after receiving goods or services. In many cases, pursuing individual consumers is not commercially viable because the recovery costs exceed the debt.

B2B debts are typically higher in value and supported by contracts, agreed payment terms, and established business relationships. However, they can become significant when customers experience financial difficulties, dispute invoices, or enter insolvency proceedings. Suppliers may therefore face substantial losses after already accounting for and paying VAT on those supplies.

In both cases, bad debt relief allows suppliers to adjust VAT on sales that ultimately remain unpaid, provided the relevant legal and procedural requirements are satisfied.

What Does a VAT Correction Mean Under Bad Debt Relief Rules?

A VAT correction allows a supplier to reduce the output VAT previously declared on an invoice that is unlikely to be paid. Rather than claiming a separate refund, the adjustment is generally made through the VAT return, reducing the supplier’s VAT liability or generating a repayment.

Within the European Union, bad debt relief is governed by Article 90 of the EU VAT Directive (Directive 2006/112/EC), which requires Member States to allow taxable amounts to be reduced where payment has not been received. However, Member States may set their own conditions and procedures, resulting in significant differences across jurisdictions. Similar relief exists in Norway, Switzerland, and the United Kingdom, each with its own eligibility rules, waiting periods, and evidential requirements. Businesses operating internationally must therefore apply the local rules in each country where VAT has been reported.

Why Recovering VAT Can Be More Complex Than It Appears

Although the principle behind bad debt relief is straightforward, obtaining a VAT adjustment is often more complex. Many jurisdictions impose waiting periods ranging from six months to more than a year, reflecting the expectation that businesses first make reasonable efforts to recover the debt. During this period, suppliers remain out of pocket, having already paid the VAT.

Administrative requirements can also be demanding. Tax authorities often require evidence that the debt is irrecoverable or sufficiently overdue, together with documentation supporting the original supply and any collection efforts. Businesses must also comply with statutory deadlines, as missing a filing deadline or failing to retain sufficient evidence may result in relief being denied.

Examples of Where Bad Debt Relief Can Be Particularly Challenging

The complexity of bad debt relief varies considerably across Europe.

In Italy, relief has historically depended not only on the age of an unpaid B2B invoice but also on formal insolvency proceedings. Following legislative changes applying to insolvency procedures opened from 26 May 2021, suppliers may generally claim VAT relief once the relevant insolvency procedure has commenced, subject to the applicable requirements.

Spain applies a highly formal process. As a general rule, suppliers may reduce the taxable amount where a debt has remained unpaid for one year after VAT became chargeable. Businesses below the statutory turnover threshold may instead claim relief after six months. Suppliers must also issue a corrective invoice, notify the Spanish tax authorities electronically using Form 952 within the prescribed deadline, and retain supporting documentation. Failure to complete any of these steps can prevent VAT recovery, even where the debt is genuinely irrecoverable.

Germany takes a different approach by imposing no statutory waiting period. Under Section 17 of the German VAT Act (UStG), suppliers may reduce the taxable amount once a receivable has become irrecoverable based on the facts and circumstances. This may include customer insolvency, unsuccessful enforcement action, or other evidence that payment is no longer expected.

The adjustment is generally made in the VAT return for the period in which the receivable becomes irrecoverable. If payment is later received, the supplier must reverse the adjustment and increase the taxable amount accordingly, making ongoing monitoring of previously adjusted debts essential.

CJEU Case Law and the Limits of National Bad Debt Relief Rules

Bad debt relief has been examined by the Court of Justice of the European Union (CJEU), particularly regarding the balance between national procedural requirements and the principle of VAT neutrality under Article 90.

In cases including Di Maura (C-246/16) and Porr Építési Kft. (C-292/19), the Court confirmed that Member States may require businesses to demonstrate that a debt is unlikely to be recovered and may impose procedural safeguards. However, those requirements must not make VAT recovery practically impossible or excessively difficult where non-payment is definitive.

These judgments illustrate the continuing balance between protecting tax revenues and ensuring businesses are not left bearing VAT on income they have never received.

The Risks of Incorrectly Adjusting VAT

Adjusting VAT before all legal conditions have been met can expose businesses to significant compliance risks. During a VAT audit, tax authorities may reject the adjustment if statutory requirements have not been satisfied or supporting documentation is incomplete. This may require repayment of the recovered VAT together with interest and, in some jurisdictions, penalties.

There is also a risk of inconsistencies between VAT reporting and accounting records if adjustments are not properly reconciled. For multinational businesses, applying one country’s rules to another can create additional exposure, as bad debt relief requirements differ substantially between jurisdictions.

Preparing for a Successful VAT Recovery

Businesses can improve their chances of recovering VAT on bad debts by preparing before any adjustment is made. Maintaining complete records of invoices, contracts, payment history, customer correspondence, and collection activity provides essential evidence that the debt is genuine and irrecoverable under the applicable rules. Ageing receivables should also be monitored so that claims are made before statutory deadlines expire.

It is equally important to understand the country-specific rules governing bad debt relief, including waiting periods, documentary requirements, invoicing formalities, and procedural obligations. Finance, tax, and credit control teams should work together to ensure that accounting write-offs and VAT adjustments remain aligned. For businesses operating across multiple countries, a standardised review process supported by local VAT expertise can help reduce compliance risks while maximising legitimate VAT recovery.

Schlussfolgerung

Bad debt relief ensures that businesses are not left permanently funding VAT on sales for which payment is never received. While the underlying principle is widely recognised across Europe, the rules governing eligibility and the claims process vary considerably. Businesses that understand local requirements, maintain robust documentation, and carefully manage the timing of VAT adjustments are better positioned to recover VAT efficiently while minimising audit risk. As economic uncertainty and customer insolvencies continue to affect businesses across many sectors, effective management of bad debt relief remains an important part of VAT compliance and cash flow management.