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· 6 min· Paweł Woś

JPK_V7 in a Sole Proprietorship in Poland 2026

JPK_V7 in a sole proprietorship in Poland 2026. How to fill out and submit the VAT declaration. JPK_V7M and JPK_V7K structure, deadlines, pitfalls.

JPKJPK_V7VATdeclarationJDG2026

JPK_V7 is the unified control file in which you report VAT to the tax office. Since 2022, it has replaced the separate VAT-7 declarations and JPK_VAT files.

In this guide, I explain how JPK_V7 works in a sole proprietorship (JDG) in 2026.

JPK_V7 — structure and deadlines

The Standard Audit File for Tax (JPK_V7) combines in a single XML file the register of purchases/sales and the VAT-7 declaration. It replaced the separate VAT-7 forms and JPK_VAT files from 2020.

Two parts of the JPK_V7 file

Register part
A list of all purchase and sales invoices for the period.
  • Each purchase / sale invoice as a separate record
  • Net, VAT, currency, date amounts
  • Counterparty: VAT ID, name
  • Procedure tags: MPP, split payment, Intra-Community acquisition
Declaration part
Quantitative VAT summary — like the old VAT-7 return.
  • Output VAT (taxable sales by rate)
  • Input VAT (deductible purchases)
  • Amount payable / refundable
  • Information fields and annexes (e.g. VAT-ZZ, VAT-ZT)

Filing frequency

JPK_V7M
Monthly
Standard — every month for the previous month.
For most active VAT taxpayers
JPK_V7K
Quarterly
Each quarter for the previous quarter (4 times a year).
For small taxpayers (turnover up to EUR 2 million) who chose the quarterly option
By the 25th day
of the month following the period
By the 25th of the month after the month (V7M) or after the quarter (V7K). On weekends — first business day.
25.

Most common errors

Wrong counterparty VAT ID — mismatch with the white list
Failure to tag MPP (split payment) transactions > EUR equivalent of 15,000 zł
Wrong VAT rate on an invoice (e.g. 0% instead of NP)
Missing or duplicate invoices in the register
Mismatch between register and declaration parts
Failure to deduct VAT from invoices on the white list

Important: Since 2022, VAT deduction requires that payments ≥ 15,000 zł go to an account on the VAT white list. A mistake in JPK_V7 can be corrected by the end of the next period without penalty.

Having doubts with JPK_V7?

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Legal status as of 2026. Basis: MF regulation of 2 March 2021 on JPK_V7 (Dz.U. 2021 item 570, as amended). MPP limit: 15,000 zł (Art. 19(13) of the VAT act). White list: Art. 86(9)–(11) of the VAT act.

What Is JPK_V7?

JPK_V7 is the Jednolity Plik Kontrolny (Unified Control File) filed with the VAT declaration. It replaced:

  • The VAT-7 declaration (monthly)
  • The VAT-7K declaration (quarterly)
  • JPK_VAT (JPK file without a declaration)

JPK_V7 combines these two elements into one file:

  1. Recording part — details of each invoice (formerly JPK_VAT)
  2. Declarative part — VAT summary (formerly VAT-7)

JPK_V7M vs. JPK_V7K

| Type | Frequency | Who | |------|-----------|-----| | JPK_V7M | Monthly | Most VAT taxpayers | | JPK_V7K | Quarterly | Small taxpayers (revenue < 2 million zł) |

Who Must File JPK_V7?

Every active VAT taxpayer — without exception. Regardless of:

  • Legal form (JDG, company)
  • Revenue size
  • Number of invoices

If you are registered as an active VAT taxpayer — you must file JPK_V7, even in a month with no sales (JPK_V7 zero).

Filing Deadlines

JPK_V7M (Monthly)

  • By the 25th day of the month following the settlement month
  • Example: JPK_V7M for January → by February 25

JPK_V7K (Quarterly)

  • By the 25th day of the month following the quarter
  • Example: JPK_V7K for Q1 (January–March) → by April 25

JPK_V7 Structure — What Does It Contain?

Recording Part (Invoices)

Each sales and purchase invoice from the period:

Sales:

  • Invoice number
  • Issue date
  • Contractor's NIP
  • Net value
  • VAT rate (23%, 8%, 5%, 0%, exempt)
  • VAT amount
  • Transaction type (domestic, WDT, WNT, etc.)

Purchases:

  • Supplier's invoice number
  • Date
  • Supplier's NIP
  • Net value
  • VAT rate
  • VAT amount

Declarative Part (Summary)

VAT summary for the period:

  • Output VAT (VAT należny) — sum of VAT on sales
  • Input VAT (VAT naliczony) — sum of VAT on purchases
  • VAT to pay / to refund
  • Adjustments and negative adjustments
  • Intra-EU transactions (WDT/WNT)
  • Import of services
  • EU VAT Summary (if applicable)

How to Fill Out and Submit JPK_V7?

Step 1: Collect Invoices

Collect all sales and purchase invoices for the period (month/quarter).

Step 2: Use an Accounting Program or the e-Tax Office Gateway

Options:

  1. Accounting program — inFakt, wFirma, Oxyok, or another accounting system automatically generates JPK_V7 from your invoices
  2. e-Tax Office Gateway — interactive form on podatki.gov.pl
  3. Interactive program — e-Declarations (installed on your computer)

Step 3: Submit JPK_V7

  • Via accounting program (electronic signature)
  • Via e-Tax Office (Trusted Profile / ePUAP)
  • Deadline: by the 25th of the month following the period

Step 4: Pay VAT (if due)

VAT to pay = Output VAT − Input VAT.

  • If positive — pay to the tax office's account (by the 25th)
  • If negative — carry forward to the next period or request a refund

Pitfalls and Common Mistakes

1. No JPK_V7 in a Month Without Sales

Even without sales — you must send a JPK_V7 zero (with zero values). Otherwise, a penalty.

2. Wrong Contractor NIP

A wrong NIP in JPK_V7 causes problems with VAT deduction on purchases. Check the NIP in the VAT whitelist database.

3. Missing Invoice Date

Each invoice must have an issue date and a sales date (if different).

4. Wrong Transaction Code

  • Domestic transaction: standard
  • WDT: code "WDT"
  • WNT: code "WNT"
  • Import of services: code "IM"
  • Split payment: code "MPP" (if above 15,000 zł)

5. Adjustments

Correcting invoices must be reported in JPK_V7 for the period in which the correction was issued (not the period of the original invoice).

FAQ

Do I need to file JPK_V7 on the lump-sum tax?

No — unless you are simultaneously an active VAT taxpayer. On the lump-sum tax without VAT, you do not file JPK_V7.

Can I file JPK_V7 quarterly?

Yes, if you are a "small taxpayer" (revenue < 2 million zł in the previous year) and filed a notification with the head of the Tax Office by the end of February.

What happens if I'm late with JPK_V7?

Late payment interest (19.5% annually) + a fine from 200 zł to 20,000 zł.

Does JPK_V7 relate to the VAT whitelist?

Yes. If you pay to an account not on the VAT whitelist (above 15,000 zł) — you cannot deduct that cost and must mark the transaction as "MPP" (split payment).

Need Help?

I handle VAT accounting for JDG — JPK_V7, declarations, deductions, VAT whitelist. From 89 zł + VAT per month.

Contact me at [email protected] or visit oxyok.com/en.

Note: JPK_V7 is mandatory for every active VAT taxpayer. Deadline: by the 25th of the month (V7M) or quarter (V7K). JPK_V7 zero even without sales. Consult an accountant before making a decision.

Questions about accounting?

I run accounting for sole proprietors from 49 zł + VAT per month.

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JPK_V7 in a Sole Proprietorship in Poland 2026