2027 budget forecasts higher VAT collections from mandatory KSeF e-invoicing
Early vote of confidence in the tax-control model pioneered by Italy and now being taken EU-wide under ViDA.
Poland expects its new mandatory KSeF e-invoicing regime to contribute to improved VAT collection in 2027, according to the government’s draft Budget.
The Ministry of Finance forecasts in the draft 2027 Budget VAT revenues of PLN 363.7 billion next year, PLN 31.7 billion, or 9.5%, above the expected 2026 outturn.
The Ministry specifically identifies previously introduced measures to improve tax collection and reduce irregularities, including implementation of the National e-Invoicing System, KSeF, as contributing to the forecast.
Government confidence in success of KSeF
Poland is not yet claiming that KSeF has delivered a measurable VAT windfall. There is no separate figure in the Budget identifying additional VAT collected because of e-invoicing.
But just months after the mandate started, the government is prepared to factor KSeF into its assumptions for stronger VAT collection.
KSeF passes its first operational test
KSeF became mandatory on 1 February 2026 for businesses with 2024 sales above PLN 200 million, followed by most remaining businesses from 1 April. The final group of smaller businesses, temporarily excluded where monthly invoiced sales do not exceed PLN 10,000 gross, joins from January 2027.
By 30 June, KSeF had processed more than 512 million invoices from 2.28 million issuers, covering almost 4.5 million domestic recipients. The Ministry says the system has operated stably and without disruption since launch.
That is operational success. The more important test now is fiscal.
Mandatory e-invoicing gives the Polish tax administration transaction-level invoice data at source rather than requiring it to reconstruct trading activity later from VAT returns and other declarations.
Instead of identifying discrepancies months after a transaction, tax authorities can increasingly use invoice data for automated matching, risk analysis and earlier intervention.
Poland follows the Italian VAT playbook
There is a clear precedent for what Poland is trying to achieve.
Italy introduced mandatory B2B and B2C electronic invoicing through its Sistema di Interscambio (SdI) in 2019. Almost all domestic invoices now pass through the central platform. The results have made Italy the reference case for European VAT administrations.
Italian government analysis has put additional annual revenues associated with its established electronic invoicing system at more than €3.5 billion, alongside a reduction in the VAT Gap.
Italy demonstrated the basic proposition: give the tax authority structured invoice data early enough and VAT control moves from retrospective reporting towards continuous transaction monitoring.
Poland is now testing the same proposition at scale.
Ahead of France, and ahead of ViDA
That makes KSeF important beyond Poland.
Poland has become one of the major EU economies to move ahead with comprehensive mandatory domestic B2B e-invoicing, following Italy but ahead of France’s full rollout.
And both are several years ahead of the EU’s VAT in the Digital Age programme.
ViDA will introduce digital reporting based on e-invoicing for intra-EU B2B transactions. The objective is similar: replace slower aggregate reporting with structured transactional information that tax administrations can analyse much earlier. The EU cross-border system is scheduled to become operational from 2030, with existing domestic systems ultimately required to become interoperable.
The EU estimates its digital reporting reforms could reduce VAT fraud by up to €11 billion annually, while cutting business compliance costs by more than €4.1 billion per year over the following decade.
Italy demonstrated the potential. ViDA will attempt to reproduce it across the EU.
For tax administrations, mandatory e-invoicing is moving beyond digitising the invoice. The prize is using the invoice itself as a VAT control instrument.
