How to invoice a client in Poland: VAT, NIP, KSeF and rules by flow

Start with the transaction flow

Polish invoicing starts with the transaction flow, not with the invoice template. Before issuing anything, determine who your customer is, where the goods or services are taxed, and which party carries import or reporting obligations. Our VAT in Poland guide summarises the applicable rates and registration triggers.

Use this sequence before you invoice:

• Customer status: B2C private individual or B2B taxable person.
• VAT ID: for B2B, check the Polish NIP and the EU VAT number in VIES when the intra-Community rules apply.
• Flow: local Polish sale, EU cross-border supply, export outside the EU, service, DAP, or DDP.
• Evidence file: transport documents, customs proof, contract, proof of payment, or service delivery evidence.

What a Polish invoice must contain

A compliant Polish invoice must include the 11 core items required by Article 106e of the Polish VAT Act. These requirements apply to invoices issued by or to a Polish taxable person and sit within the EU VAT framework, including Directive 2006/112/EC.

A simplified invoice is possible for transactions up to 450 PLN. Under Article 106e(3) of the Polish VAT Act, the invoice can take the form of a receipt and does not require the buyer's full identity. If the buyer wants to deduct input VAT, the buyer's NIP still matters.

Which VAT treatment applies?

The VAT treatment depends on the customer, the place of supply and the movement of the goods. The same Polish customer can trigger different invoice wording depending on whether you sell locally, ship from another EU country, export, or deliver under DDP.

Local B2C sales in Poland carry Polish VAT. The standard rate is 23%. Reduced rates of 8% and 5% apply to specific categories such as certain food products, medicines, public transport, essential goods and printed books. A foreign seller making local taxable supplies usually needs Polish VAT registration and reports Polish VAT through JPK_V7, monthly or quarterly depending on the case.

EU distance sales to Polish consumers fall under the 10,000 EUR OSS threshold. Below that EU-wide annual threshold, you usually apply the VAT rules of your Member State of establishment. Above it, Polish VAT applies and you either report through the One Stop Shop or register directly in Poland.

Local B2B sales in Poland are normally subject to Polish VAT. The standard 23% rate applies unless a sector-specific domestic reverse charge mechanism is available, for example in sensitive areas such as construction, electronics or fuels.

Intra-Community supplies of goods are zero-rated only when the evidence file is clean. The Polish buyer must have a valid EU VAT number, the goods must physically leave your country for Poland, and you must keep transport evidence such as signed CMR, waybill, insurance proof or bank records. The transaction is reported in the European Sales Listing, also known as ESL or VAT-EU, by the 25th of the following month.

Exports outside the EU are zero-rated when you keep customs proof. The file should include export clearance, an export accompanying document such as DAE/EX1, or equivalent electronic customs evidence.

Mandatory wording by operation type

Polish invoices often fail because the legal wording does not match the flow. The rate, exemption reference and Incoterm wording must tell the same story as the goods movement and the evidence file.

For a local Polish sale, show the applicable VAT rate and the VAT amount in PLN. If several rates apply, split the net amount and VAT amount line by line.

For an intra-Community B2B supply, issue the invoice without VAT and include the legal exemption reference:

VAT exemption — Article 138 of Directive 2006/112/EC

Also include your intra-Community VAT number, the buyer's Polish VAT number with the PL prefix and 10 digits, and wording confirming that VAT is payable by the buyer under reverse charge.

For B2B services, the general Article 44 rule of Directive 2006/112/EC applies: VAT is due where the customer is established, and the customer accounts for VAT through reverse charge. The invoice is issued without VAT and should refer to reverse charge under Article 44.

B2C service exceptions can move taxation to Poland. Services connected with Polish immovable property, cultural or event services held in Poland, and restaurant services are taxable in Poland regardless of the customer's VAT status.

Split payment and the 15,000 PLN threshold

Poland's split payment mechanism applies to invoices above 15,000 PLN involving Annex 15 goods or services. The Polish mechanism is called MPP, or Mechanizm Podzielonej Płatności. The net amount is paid to the seller's current account and the VAT amount is paid into a blocked VAT account controlled by the tax administration.

The mandatory Polish wording is:

Mechanizm podzielonej płatności

MPP typically matters for sensitive goods. Annex 15 includes categories such as steel, copper, fuels, phones, computers and automotive parts.

KSeF: Polish e-invoicing for foreign companies

KSeF is Poland's national structured e-invoicing system. The Krajowy System e-Faktur centralises the issuing, receiving and archiving of B2B invoices in structured XML format, using schema FA(3), with 10-year state-backed storage.

The mandatory rollout introduced by the law signed on 27 August 2025 follows this calendar:

Foreign companies without a fixed establishment in Poland are exempt from mandatory KSeF. Holding a Polish VAT number is not enough to bring you into mandatory KSeF. The obligation applies only where your fixed establishment in Poland participates in the taxable transactions concerned.

Evidence and retention periods

Polish tax files must generally be kept for 5 years from the end of the relevant fiscal year. Invoices archived through KSeF are stored for 10 years by the system.

The 0% VAT rate is only as strong as your evidence. If the goods movement or export proof is missing, the Polish or foreign tax authority can challenge the exemption and reclassify the transaction.

DAP and DDP deliveries to Poland

Under DAP, the Polish buyer handles import clearance and import VAT. The seller delivers the goods to the agreed place in Poland but does not clear the goods for import and does not pay Polish import VAT. The invoice should be issued without Polish VAT and include wording such as "DAP [place of delivery], Incoterms® 2020 — customs duties, taxes and clearance fees payable by the buyer".

Under DDP, the seller carries the Polish import and VAT burden. You deliver the goods cleared for import, with customs duties, clearance costs and import VAT handled on your side. For non-EU businesses, DDP usually creates three obligations before the first shipment: See our guide on the EC Sales List and Intrastat in Poland.

• obtain an EU EORI number;
• register for VAT in Poland;
• appoint a fiscal representative in Poland if you are not established in the European Union.

Import VAT paid under DDP is recoverable through the Polish JPK_V7 VAT return. The standard refund period is 60 days under Article 87 of the Polish VAT Act. A 25-day refund is possible under conditions, including Polish bank account and regular operations. See our guides on the VAT return in Poland and on the VAT refund in Poland.