Every EU compliance deadline that applies to your company, on one timeline.

Poland: employer PPK (Pracownicze Plany Kapitałowe) contribution transfer due by the 15th

Re-checked 2026-09-09: mojeppk.pl is reachable but its homepage shows only a general disclaimer, with no specific deadline text extracted this session. The 15th-of-month deadline and Art. 28(4) legal basis remain well-established and unchanged.

Next: 15 September 2026then 15 October 2026, 15 November 2026

Poland-registered employers with at least one employee enrolled in PPK (auto-enrolment for employees aged 18-54 who have not opted out). Micro-employers with fewer than 10 people employed are exempt only if every employee has submitted a resignation declaration; the self-employed with no staff have no PPK obligation.

Poland: ZUS social insurance contributions and DRA declaration due by the 15th (legal persons)

Next: 15 September 2026then 15 October 2026, 15 November 2026

Every Poland-registered ZUS contribution payer, including a self-employed sole trader (JDG) paying only their own contributions; a sp. z o.o. (a capital company with legal personality) falls under the 15th-of-month deadline described here, while sole traders and personal partnerships use the 20th (see the action text below).

Poland: monthly CIT advance payment due by the 20th (quarterly option for small taxpayers)

Next: 20 September 2026then 20 October 2026, 20 November 2026

All Poland-registered CIT taxpayers (sp. z o.o., S.A. and other CIT payers) generating taxable income during the year.

Poland: monthly PFRON declaration and payment due by the 20th (employers with 25+ employees)

Next: 20 September 2026then 20 October 2026, 20 November 2026

Poland-registered employers reaching the 25-FTE-employee threshold whose disability-employment rate is below the statutory 6% (employers meeting the 6% rate, and most public/some other exempt employers, owe no contribution).

Poland: employer's monthly PIT advance payment on employee salaries due by the 20th

Next: 20 September 2026then 20 October 2026, 20 November 2026

Every Poland-registered employer paying salaries, board-member remuneration, or other employment income subject to PIT withholding.

Poland: JPK_V7M monthly VAT return and payment due by the 25th

Next: 25 September 2026then 25 October 2026, 25 November 2026

VAT-registered companies in Poland on the standard monthly settlement; small taxpayers (mali podatnicy, turnover up to EUR 2 million including VAT) may opt into quarterly JPK_V7K filing instead.

Poland: e-Doręczenia address becomes mandatory for CEIDG businesses registered before 2025

Applies to sole traders/businesses registered in CEIDG before 1 January 2025. Businesses registering in CEIDG from 1 January 2025 onward, and any pre-2025 CEIDG entrepreneur who filed a CEIDG update request after 30 June 2025, already had to set up an e-Doręczenia address earlier. Companies registered in the KRS had an earlier deadline: 1 April 2025 for those registered before 1 January 2025, and immediately at registration from 1 January 2025 for new KRS entities.

Sole traders (jednoosobowa działalność gospodarcza) and other CEIDG-registered businesses in Poland that registered before 1 January 2025 and have not already set up an e-Doręczenia address.

Platform Work Directive: presumption of employment and algorithmic-management rules must apply nationally

Any platform that organises work performed by individuals through an app or website (delivery, ride-hailing, cleaning, freelance marketplaces), including small platforms; only Italy and Spain had draft laws by mid-2026.

Poland: JPK_CIT digital accounting-books reporting becomes mandatory for remaining CIT taxpayers

Updated 2026-09-09: primary-source-confirmed via api.sejm.gov.pl -- the Ustawa z dnia 15 maja 2026 r. (Dz.U. 2026 poz. 779), in force 2026-07-01, amended the CIT Act's JPK_CIT submission-deadline provision. The submission deadline for the structured accounting books is no longer tied to the CIT-8 filing deadline; it is now "do końca siódmego miesiąca po zakończeniu roku podatkowego" (the end of the 7th month after the tax year ends) -- e.g. 31 July for a calendar-year filer, not ~31 March. This entry's 2027-01-01 date still correctly marks when the final phase (remaining CIT taxpayers) becomes obligated to keep the books electronically, but the first SUBMISSION under that phase now falls around 31 July 2028 (7 months after the FY2027 year-end), not alongside CIT-8 the following spring. Separately: this entry only models the final (2027) phase. A small VAT-registered CIT taxpayer (e.g. a small SaaS or e-commerce sp. z o.o. already filing JPK_V7M) plausibly falls into the EARLIER "other CIT payers already obligated to file JPK_VAT" phase (tax years starting after 31 Dec 2025, i.e. FY2026), which is not represented by a separate dataset entry -- this phase-2 gap could not be independently confirmed to primary-source standard this session (podatki.gov.pl's JPK page loaded with no extractable article text) and is flagged for a follow-up audit rather than guessed at.

Polish CIT taxpayers, including smaller companies and non-legal-person entities keeping accounting books, not already brought into scope by the 2025 (large taxpayers/tax capital groups) or 2026 (other JPK_VAT-obligated CIT payers) phases.

Poland: 2027 minimum wage proposed at PLN 4,950; final regulation due by 15 September 2026

The Rada Dialogu Społecznego (Social Dialogue Council) did not reach a unanimous position, so under the Minimum Wage Act the Council of Ministers must set the 2027 figure by regulation no later than 15 September 2026, and cannot set it below the PLN 4,950 gross / PLN 32.30 hourly figure it already proposed to the social partners. As of this run (2026-09-08), the confirming Dziennik Ustaw regulation had not yet been published - treat PLN 4,950 as the legal floor, not yet the final confirmed figure.

Every employer in Poland with staff paid at or near the minimum wage, regardless of sector.

Poland: annual PIT-11, PIT-4R and PIT-8AR employer information returns due 31 January (to the tax office)

Re-checked 2026-09-09: podatki.gov.pl/pit/dla-pracodawcy-platnika/obowiazki-platnika still returns a 404 (site restructure). The 31 January electronic-filing deadline is well-established, stable PIT law; not independently re-confirmed against a live official page this session.

Next: 31 January 2027then 31 January 2028, 31 January 2029

Every Poland-registered employer that withheld PIT advances on employee salaries, board-member remuneration, or other PIT-withholdable payments during the year.

Poland: ZUS IWA accident-insurance information due 31 January (employers averaging 10+ insured)

Gemini candidate audit (2026-09-08), confidence: verified against zus.pl directly this session.

Next: 31 January 2027then 31 January 2028, 31 January 2029

Poland-registered employers with average monthly accident-insurance coverage of at least 10 insured persons (including the payer) in the prior year - typically mid-sized and larger employers; not relevant to a 3-person company.

Poland: annual report to the national GHG/emissions database (KOBiZE) due by end of February

Confirmed 2026-09-09 via kobize.pl's own "Informacja ogólna" page: "Informacje wymienione w punktach 1-12 dotyczące poprzedniego roku kalendarzowego są wprowadzane do Krajowej bazy przez podmioty korzystające ze środowiska w raportach rocznych składanych do końca lutego każdego roku" (prior-year data is submitted in annual reports filed by the end of February each year) -- matches the dataset's end-of-February deadline.

Next: 28 February 2027then 29 February 2028, 28 February 2029

Businesses operating emission sources in Poland - in practice this reaches far beyond heavy industry, since it covers company vehicle fleets and building heating/generator equipment above minor thresholds, making it a commonly overlooked obligation for ordinary office-based companies.

Poland: PIT-11 statement must be provided to each employee by the end of February

Re-checked 2026-09-09: podatki.gov.pl/pit/dla-pracodawcy-platnika/obowiazki-platnika still returns a 404 (site restructure, same page as pl-pit-annual-info-returns-jan31). The end-of-February employee-copy deadline is well-established, stable PIT law; not independently re-confirmed against a live official page this session.

Next: 28 February 2027then 29 February 2028, 28 February 2029

Every Poland-registered employer that withheld PIT advances on employee salaries or other PIT-withholdable payments during the year.

Poland: annual BDO report on packaging and products due 15 March

Next: 15 March 2027then 15 March 2028, 15 March 2029

Companies introducing packaging, packaged goods, batteries, electrical/electronic equipment or vehicles onto the Polish market, and waste generators/handlers registered in BDO.

Poland: annual CIT-8 corporate income tax return due by 31 March

Next: 31 March 2027then 31 March 2028, 31 March 2029

All Poland-registered CIT taxpayers (sp. z o.o., S.A. and other CIT payers) with a calendar financial year.

Poland: annual environmental-use fee (opłata za korzystanie ze środowiska) due by 31 March

Re-checked 2026-09-09: gov.pl/web/gov/zloz-sprawozdanie-o-korzystaniu-ze-srodowiska-oraz-wniesionych-oplatach now redirects to the gov.pl homepage (the page appears to have been removed or moved). The 31 March deadline and the de-minimis fee threshold could not be independently re-confirmed this session.

Next: 31 March 2027then 31 March 2028, 31 March 2029

Businesses operating vehicles or other emission/water-use sources in Poland above the de-minimis threshold - like the KOBiZE report, this reaches beyond heavy industry to ordinary companies with a company vehicle fleet.

Poland: e-financial statements filing to KRS via RDF due within 15 days of approval (by 15 July for calendar-year filers)

Next: 15 July 2027then 15 July 2028, 15 July 2029

All Poland-registered companies in the KRS (sp. z o.o., S.A. and other commercial entities) with a calendar financial year.

AI Act: high-risk AI obligations for Annex III use cases (HR, credit, education, biometrics, critical infrastructure)

Postponed from 2026-08-02 by the Digital Omnibus on AI, Regulation (EU) 2026/1744 (OJ 2026-07-24, in force 2026-07-27)

Companies building such AI systems, and any employer or lender that uses them (deployer duties), regardless of size. SMEs get simplified documentation templates.