Split Payment — When Is the Split Payment Mechanism (MPP) Mandatory

In short: The split payment mechanism (mechanizm podzielonej płatności, MPP) is mandatory when three conditions are met simultaneously: the invoice amounts to more than PLN 15,000 gross, it includes at least one good or service from Annex 15 to the VAT Act (among others, electronics, steel, fuels, construction services), and the transaction is between active VAT taxpayers. In that case, the seller must mark the invoice with the annotation "mechanizm podzielonej płatności", and the buyer must pay via split payment. Neglecting this carries an additional liability of 30% of the VAT and the loss of the tax-deductible cost.

Split payment sounds intimidating, but in practice it's just a way of paying an invoice: the VAT amount is routed to a dedicated account. The catch is that for some transactions this method is mandatory — and a mistake costs 30% of the tax. This guide shows when you must use MPP, when it's worth using voluntarily, and what penalties apply to both parties of a transaction.

Table of Contents

1. What MPP and the VAT account are
2. When split payment is mandatory — three conditions
3. Annex 15 — which industries and goods
4. The mandatory invoice annotation
5. What you can spend VAT account funds on
6. Voluntary MPP and its benefits
7. Penalties for not using MPP when it's mandatory
8. When there's no penalty — exceptions
9. A worked example
10. FAQ

1. What MPP and the VAT account are

The split payment mechanism works by splitting the payment of an invoice into two streams:

• the net amount goes to the seller's regular settlement account,
• the VAT amount goes to their dedicated VAT account.

The VAT account (rachunek VAT) is a special sub-account that the bank opens automatically and free of charge for every business settlement account. You don't need to open or manage it — when you make a split payment transfer, the bank routes the right amounts to the right places on its own. In practice, you make a single transfer (the so-called split payment message), specifying the invoice number, the seller's NIP (tax ID), and the VAT amount, and the bank splits the funds for you.

The whole construction has one purpose: to make VAT fraud harder. Since the tax settles into a segregated account, it's harder to "disappear" with the state's money.

2. When split payment is mandatory — three conditions

Mandatory MPP kicks in only when all three conditions are met at the same time:

1. The gross invoice value exceeds PLN 15,000 (or the equivalent in foreign currency). What counts is the gross value of the whole invoice, not a single line item.
2. The invoice contains at least one item from Annex 15 to the VAT Act — the so-called "sensitive" goods and services.
3. Both parties are VAT taxpayers — it's a B2B transaction (both the seller and the buyer run a business).

If any of these conditions isn't met — say, the invoice is for PLN 12,000, or it covers goods outside Annex 15 — there's no MPP obligation (though you can still apply it voluntarily). Note: the obligation covers the entire invoice above PLN 15,000 as soon as even one item comes from Annex 15 — you can't "get around" the threshold by splitting the payment into smaller transfers.

3. Annex 15 — which industries and goods

Annex 15 to the VAT Act is a list of around 150 items of goods and services that are particularly exposed to abuse. Rather than memorizing it, it helps to know the main categories:

If you operate in one of these industries — as a seller or a buyer — split payment should be your default scenario for larger invoices. The full, up-to-date list of items (with PKWiU codes) is set out in Annex 15 itself.

4. The mandatory invoice annotation

When a transaction meets the three conditions from section 2, the seller is required to place the following exact wording on the invoice:

"mechanizm podzielonej płatności"

This isn't a suggestion or a courtesy note — it's a statutory requirement. (The wording must appear in Polish, as required by law; it translates as "split payment mechanism.") The annotation tells the buyer: "you must pay this invoice via split payment." However, the absence of this annotation doesn't release the buyer from the obligation to pay via MPP if the invoice objectively meets the conditions. In other words, each party is responsible for its own part — the seller for the annotation, the buyer for the payment method.

5. What you can spend VAT account funds on

Money in the VAT account isn't "frozen," but what you can use it for is restricted by law. From the VAT account you can primarily pay public-law liabilities:

• VAT — to the tax office (returns, corrections, arrears) and VAT owed to business partners (the VAT amount in an MPP transfer),
• PIT and CIT — advance payments and the annual tax,
• ZUS contributions (and KRUS),
• excise duty and customs duty (including import VAT),
• interest on the above liabilities,
• transfers between your own VAT accounts.

What you can't pay from the VAT account: rent, net wages, ordinary private purchases, or the net amount on suppliers' invoices. If you want to "release" a surplus for current needs, you file an application to transfer funds from the VAT account to your regular account with the head of the tax office — the office has a set time to decide.

6. Voluntary MPP and its benefits

You can use split payment voluntarily — even for invoices below PLN 15,000 or outside Annex 15. It's the buyer's decision: even when the seller hasn't marked the invoice, you can still pay via MPP. Why is it worth it?

• Protection under the VAT white list — paying via MPP protects, in many cases, against sanctions for a transfer to an account outside the register (you keep the tax-deductible cost and avoid joint-and-several liability). More in VAT White List — How to Check a Counterparty.
• No additional VAT liability — amounts paid via split payment aren't subject to the additional VAT sanctions (normally 15%, 30%, 100%).
• Lower interest — on VAT arrears, the increased interest rate (150% of the standard rate) doesn't apply if you meet the conditions on the share of payments made via MPP.
• Presumption of due diligence — MPP is strong evidence that you exercised due care in verifying a counterparty, should they turn out to be dishonest.
• Faster VAT refund — a refund to the VAT account arrives within a shortened 25-day period (instead of the standard 60 days).
• Protection of funds — amounts in the VAT account are, as a rule, exempt from enforcement seizure (except for tax arrears).

For businesses in "sensitive" industries, voluntary MPP is therefore often a convenient default safeguard — less analysis for every invoice, lower sanction risk.

7. Penalties for not using MPP when it's mandatory

When MPP is mandatory and either party fails its obligation, the consequences are severe.

For the seller (missing the "mechanizm podzielonej płatności" annotation on an invoice subject to the obligation):

• an additional tax liability of 30% of the VAT amount attributable to the goods/services from Annex 15,
• criminal-fiscal liability (under the Fiscal Penal Code, KKS) — a fine of up to 180 daily rates.

For the buyer (paying by a regular transfer instead of MPP despite the obligation):

• an additional tax liability of 30% of the VAT amount on the purchased goods/services covered by the obligation,
• loss of the tax-deductible cost on the part paid outside MPP — this genuinely increases income tax,
• criminal-fiscal liability (KKS) — a fine of up to 720 daily rates.

There's an asymmetry here: the buyer risks more, because it's the buyer who actually decides on the payment method, and it's the buyer's expense that "drops out" of costs.

8. When there's no penalty — exceptions

The Act provides "safety valves." The 30% sanction won't be imposed if:

• the seller didn't mark the invoice, but the buyer paid via MPP anyway — the missing annotation doesn't matter when the payment was actually split,
• the buyer paid by a regular transfer, but the seller correctly settled the full VAT from that invoice in their return.

This matters in practice: if you realize after the fact that an invoice should have been paid via MPP, the situation can often still be corrected by the other party's proper behavior. Still, it's not worth relying on this — the safest approach is simply to mark and pay via MPP every time the obligation applies.

9. A worked example

You buy a batch of laptops from a supplier for PLN 30,000 net + PLN 6,900 VAT = PLN 36,900 gross. Computers are on Annex 15, the invoice exceeds PLN 15,000, and both companies are VAT taxpayers — MPP is mandatory.

A single careless transfer can therefore cost over PLN 2,000 in penalties, plus the lost cost — for a transaction you had to pay anyway.

Automate VAT with eKsięgowy AI

Manually tracking which invoice requires split payment and which counterparty is on the white list is a job for an algorithm, not a human. eKsięgowy AI is an AI assistant integrated with wFirma: it answers questions about VAT, PIT, CIT, and ZUS, verifies a counterparty on the VAT white list, issues an e-invoice to KSeF, and reminds you of payment deadlines. It also auto-fills company data from a NIP via the GUS registry, so a counterparty's record is complete from the very first invoice — and you can be sure the "mechanizm podzielonej płatności" annotation shows up wherever it's required.

Frequently Asked Questions (FAQ)

From what amount is split payment mandatory? From invoices above PLN 15,000 gross, provided they include at least one item from Annex 15 and it's a B2B transaction. Below the threshold, MPP is voluntary.

Do I have to use MPP for every invoice above PLN 15,000? No. The obligation only applies to invoices containing goods or services from Annex 15. For everything else, you can apply MPP voluntarily.

What if the seller didn't mark the invoice but should have? As the buyer, you still have to pay via MPP if the transaction meets the conditions. Paying via split payment then protects you against the sanction, even without the annotation.

What's the penalty for not using mandatory MPP? An additional liability of 30% of the VAT amount — for the seller (missing annotation) and for the buyer (payment without MPP). The buyer also loses the tax-deductible cost on the part paid outside MPP.

What can I spend VAT account money on? On VAT, PIT, CIT, ZUS, excise duty, customs duty, and interest on those liabilities, as well as VAT transfers to business partners and between your own VAT accounts. For other purposes — after filing an application to release the funds.

Does split payment protect me under the VAT white list? Yes, in many cases paying via MPP protects against white-list sanctions (loss of cost and joint-and-several liability). Details in VAT White List — How to Check a Counterparty.

This article is for informational purposes only and does not constitute tax advice. Consult an accountant or tax advisor in individual cases. Legal status: July 2026.