Short answer
A business does not necessarily lose its EU-law right to deduct input VAT because an invoice omits or misstates a required detail. If the substantive conditions for deduction are met and the tax authority has the information needed to verify them, VAT neutrality generally prevents refusal solely for a formal invoice defect. A correcting document can have retroactive effect where it specifically and unambiguously refers to the original invoice. The authority must also consider relevant supporting information, not examine the invoice in isolation.
But substance must be proved. The claimant must show a genuine supply by another taxable person, business use for taxed outputs and VAT that was actually due or paid. An estimate cannot replace missing evidence of the transaction and tax. VAT incorrectly charged under the ordinary regime when reverse charge applied is not deductible merely because it appears on an invoice; the usual route is correction and repayment through the supplier, with a direct claim against the tax authority potentially required if recovery is impossible or excessively difficult. Fraud, abuse, deliberate concealment and reasonable national time limits can also change the result.
The right arises from the transaction, but an invoice normally exercises it
Council Directive 2006/112/EC (the VAT Directive) separates the origin of the deduction right from the conditions for exercising it. Article 167 supplies the starting rule:
A right of deduction shall arise at the time the deductible tax becomes chargeable. —
Article 168(a) requires inputs supplied by another taxable person, used for transactions carrying a deduction right, with VAT due or paid. Exempt, private or partial business use and special schemes can restrict deduction.
Article 178(a) normally requires a compliant invoice. Article 226 lists the date, number, parties, supply, taxable amount, rate and VAT payable. Member States administer returns, evidence and corrections but cannot add invoice requirements or use formalities disproportionately.
A defective invoice can be corrected with retroactive effect
Article 219 treats any document or message that amends and specifically and unambiguously refers to the initial invoice as an invoice. In Case C-518/14, Senatex, ECLI:EU:C:2016:691, invoices initially omitted the supplier's tax or VAT identification number and were later corrected. The Court of Justice held that EU law precluded a rule under which:
the right to deduct value added tax exercised on the basis of the corrected invoice relates not to the year in which the invoice was originally drawn up but to the year in which it was corrected. —
Senatex does not mean every late document works. It concerned existing invoices containing the other required information. Corrections should identify the original and the change. Proportionate limitation periods and penalties may still apply.
Two 2026 rulings refine timing. In Case T-689/24, the General Court held that deduction could not be denied for the period in which the substantive conditions were met merely because the invoice arrived later, where it arrived before the return was filed. In Case C-521/24, the Court of Justice held that a good-faith taxpayer claiming within the limitation period could deduct intra-Community acquisition VAT in the later period when the necessary invoices were actually received. Neither judgment abolishes limitation periods; each rejects a timing rule that made a properly evidenced deduction impossible or excessively difficult.
Supporting evidence may cure form, but cannot replace substance
Case C-516/14, Barlis 06, ECLI:EU:C:2016:690, concerned invoices whose descriptions and dates did not adequately specify legal services. The invoices themselves did not necessarily meet Article 226. Yet the tax authority had annexes containing additional information. The Court concluded:
the tax authorities cannot refuse the right to deduct VAT on the sole ground that an invoice does not satisfy the conditions required by Article 226(6) and (7) of Directive 2006/112 if they have available all the information to ascertain whether the substantive conditions for that right are satisfied. —
The authority must consider invoices, corrections, contracts, performance and payment records together. The claimant still must prove the real supply and VAT amount.
That limit decided Case C-664/16, Vădan, ECLI:EU:C:2018:933. The claimant could not produce invoices or other legible evidence of the input VAT paid. A court-appointed expert could estimate construction inputs, but could not establish that suppliers actually provided them or that the claimant paid the claimed VAT. An economic estimate may support evidence; it cannot manufacture substantive entitlement.
No deduction exists for tax that was not due or paid
Formal tolerance does not turn incorrectly invoiced VAT into deductible input tax. Article 203 makes a person who enters VAT on an invoice liable for it, protecting revenue against invoice-based claims. But that liability does not itself create a corresponding Article 168 deduction for the customer.
In Case C-156/20, Zipvit, ECLI:EU:C:2022:2, supplier and customer had mistakenly treated postal services as exempt. The invoices showed no VAT, the contractual price did not add it, and recovery of the tax had become time-barred. The Court held that VAT could not be treated as “due or paid” and deducted merely by deeming it embedded in the price.
Case C-691/17, PORR Építési, ECLI:EU:C:2019:327, addressed invoices using ordinary VAT where reverse charge should have applied. The customer could not deduct the non-due amount. Ordinarily, the supplier corrects the invoice, reclaims VAT paid to the Treasury and repays the customer. Effectiveness adds a fallback where supplier recovery is impossible or excessively difficult, particularly because of insolvency:
PORR must be able to address its application for reimbursement to the tax authority directly. —
That is a repayment claim, distinct from deduction. National law supplies the procedure, subject to equivalence and effectiveness. The customer cannot simply choose the Treasury whenever recovery from the supplier remains realistically available.
Case C-83/23 confirms that the direct route is exceptional. A customer could not claim from its home tax authority after that authority had already refunded the wrongly invoiced national VAT to the supplier, even though the supplier later entered liquidation, because the customer had not exhausted a still-available route to obtain the correctly taxed invoice.
Fraud and lack of proof remain decisive
Tax authorities may refuse a deduction where objective evidence shows that the claimant committed fraud or knew or ought to have known that the transaction was connected with fraud. Joined Cases C-80/11 and C-142/11, Mahagében and Dávid, ECLI:EU:C:2012:373, also set the other boundary: supplier irregularities alone do not justify refusal, and authorities cannot routinely require a customer to audit whether its supplier owns the goods, has staff and vehicles, filed returns or paid VAT where the Directive's conditions are met and there is no reason for suspicion.
The practical distinction is between reasonable verification responding to warning signs and shifting the tax authority's investigative job onto every customer. Fabricated invoices, sham transactions, contradictory records or ignored red flags concern substance or fraud, not harmless form.
A practical correction and deduction sequence
- Classify the transaction. Confirm the supplier, place, timing, rate and ordinary or reverse-charge treatment.
- Test substantive entitlement. Record taxable-person status, the real input supply, intended and actual business use, and the amount of VAT due or paid.
- Audit the invoice. Apply Article 226 and national reporting and correction rules.
- Correct through a linked document. Refer specifically and unambiguously to the original invoice, identify the change and preserve both documents and their audit trail.
- Assemble supporting proof. Include contracts, delivery or performance records, payment evidence, correspondence and accounting entries.
- Choose the correct remedy. Claim deduction for deductible VAT; seek supplier correction and repayment for VAT charged but not due; assess a direct authority claim only where supplier recovery is impossible or excessively difficult.
- Check timing and conduct. Apply return, correction, limitation and penalty rules; document fraud risks.
Conclusion
EU VAT law protects substantive deduction against disproportionate formalism, not against missing substance. A business can often correct an existing invoice retroactively or prove entitlement with additional records when the authority can verify a genuine taxable input used for deductible activity. It cannot rely on form to deduct VAT that was never due or paid, estimate tax without objective evidence, or preserve a claim linked to fraud.
The remedy depends on the defect. Correct the invoice where its details are wrong; supplement it where evidence is incomplete; use the supplier repayment route for non-due VAT; and reserve a direct claim against the authority for cases where that route becomes impossible or excessively difficult.
Sources
This article provides general legal information, not advice for a specific matter. Laws, facts and procedural deadlines may change the result. Follow the linked primary sources and obtain local advice before acting.