Flat-rate tax rates 2026 — full PKD table and new health insurance
Complete overview of all 10 flat-rate tax brackets for 2026 with PKD code mapping and updated health insurance contributions.
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News
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The most important changes in regulations, tax tips and news from our office.
12
MAR 2026
Podatki
10
MAR 2026
KSeF
LinTax builds its own KSeF client — why we chose a custom solution
We are intensively working on our own KSeF client implementation. We explain why we chose a custom solution and what benefits it will bring to our clients.
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24
FEB 2026
KSeF
KSeF — first days of the mandate. System launch summary
Mandatory KSeF has been live since 1 February. We summarize first experiences, common issues and our recommendations.
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17
FEB 2026
PIT / CIT
PIT for 2025 — new forms and filing deadlines
The PIT filing season for 2025 has started. Check new forms, deadlines and key changes.
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10
FEB 2026
KSeF
Mandatory KSeF from February 2026 — what you need to know
The National e-Invoice System becomes mandatory. We present the implementation timeline, technical requirements and practical tips for entrepreneurs.
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08
JAN 2026
PIT / CIT
PIT and CIT changes for 2026
The new tax year brings significant income tax changes. Check what's changing in thresholds, reliefs and rates.
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18
DEC 2025
VAT
New VAT limits and exemptions from 2026
From the new year, VAT exemption thresholds and intra-Community transaction rules are changing.
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15
OCT 2025
KSeF
KSeF — another postponement of the implementation deadline
The Ministry of Finance announced a new mandatory KSeF implementation timeline. Check the current dates and what it means for your business.
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22
AUG 2025
JPK
JPK_CIT — new reporting obligation from 2025
From 2025, CIT taxpayers must submit new JPK structures. We explain the data scope and deadlines.
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05
JUN 2025
VAT
SLIM VAT 4 — simplifications in VAT settlements
Another VAT simplification package comes into effect. We discuss the key changes making life easier for entrepreneurs.
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12
MAR 2025
PIT / CIT
Cash-basis PIT for small businesses from 2025
A new PIT settlement method allows small businesses to pay tax only after receiving payment. Check the conditions.
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20
JAN 2025
PIT / CIT
Global minimum tax 15% (Pillar 2) — what it means for Polish companies
Poland implements the EU directive on global minimum tax. We explain who it affects and its consequences.
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08
NOV 2024
KSeF
KSeF — testing and pilot. How to prepare?
The Ministry of Finance has launched the KSeF 2.0 test environment. We advise how to effectively test integration.
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18
SEP 2024
ZUS
Health insurance contribution changes for entrepreneurs
From 2025, the health insurance contribution calculation method changes for flat-tax and lump-sum taxpayers.
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22
JUL 2024
Prawo
Mandatory e-Delivery from 2025
The e-Delivery system becomes mandatory. We explain who must have an electronic delivery address and when.
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10
JUN 2024
KSeF
KSeF postponed — new deadline is 2026
The Minister of Finance officially confirmed the postponement of mandatory KSeF. We present the details.
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20
MAY 2024
PIT / CIT
New mileage rates from May 2024
The Ministry of Infrastructure raised the rates per 1 km for private vehicles used for business purposes.
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28
MAR 2024
Podatki
Tax year 2024 — key changes and deadlines
Summary of the most important tax changes effective from 2024 and a calendar of key deadlines.
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22
JAN 2024
KSeF
KSeF — Minister of Finance halts mandatory e-invoices
In January 2024, the Minister of Finance announced a halt to mandatory KSeF planned for July 2024.
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11
DEC 2023
PIT / CIT
New transfer pricing reporting rules from 2024
Transfer pricing documentation obligations are changing. New thresholds, deadlines and reporting scope.
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20
NOV 2023
Prawo
Mandatory integration of cash registers with payment terminals
From 2025, cash registers must be integrated with payment terminals. We explain the new obligations.
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05
OCT 2023
KSeF
Mandatory KSeF from July 2024 — implementation timeline
The National e-Invoice System will become mandatory from 1 July 2024. We present an action plan for businesses.
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10
JUL 2023
VAT
SLIM VAT 3 takes effect — overview of simplifications
The SLIM VAT 3 package has been in effect since 1 July 2023. We discuss the key VAT simplifications.
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15
JUN 2023
JPK
JPK_VAT — structural changes from July 2023
A new version of the JPK_VAT structure introduces additional fields and codes. Check what changes in reporting.
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18
APR 2023
PIT / CIT
Estonian CIT growing in popularity — summary
The lump-sum tax on company income (Estonian CIT) is growing in popularity. We discuss rules, benefits and pitfalls.
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14
FEB 2023
PIT / CIT
Minimum CIT — suspension and changes
The minimum corporate income tax was suspended until end of 2024. Check the new rules from 2025.
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14
NOV 2022
VAT
VAT group — new option from 2023
From January 2023, related entities can form VAT groups. We explain the rules and benefits.
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05
SEP 2022
Prawo
Mandatory acceptance of cashless payments
From 2022, entrepreneurs using cash registers must accept cashless payments.
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05
JUL 2022
PIT / CIT
Polish Deal 2.0 — changes from July 2022
The government fixes the Polish Deal. From July 2022: lower PIT rate, elimination of middle-class relief and other corrections.
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11
APR 2022
PIT / CIT
Transfer pricing — Polish Deal changes
The Polish Deal introduces significant transfer pricing documentation changes. New thresholds, deadlines and obligations.
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02
FEB 2022
VAT
Anti-inflation shield — VAT reduction on fuel and food
The government introduces an anti-inflation shield with reduced VAT rates. Check which products are covered.
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10
JAN 2022
KSeF
KSeF — voluntary start from January 2022
The National e-Invoice System has launched voluntarily. We explain how it works and why it's worth starting early.
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15
DEC 2021
PIT / CIT
Polish Deal — tax revolution from 2022
From January 2022, the Polish Deal takes effect — the biggest tax reform in years. We discuss key changes.
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08
NOV 2021
PIT / CIT
Withholding tax (WHT) changes from 2022
New withholding tax collection rules take effect. We discuss the pay and refund mechanism and payer obligations.
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04
OCT 2021
VAT
SLIM VAT 2 — further VAT simplifications
The second VAT simplification package takes effect from October 2021. An overview of the most important changes.
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16
AUG 2021
Prawo
Online cash registers — mandatory for more industries
More industries must replace cash registers with online ones. Check the timeline and obligations.
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21
JUN 2021
KSeF
KSeF — announcement of the e-invoice system in Poland
The Ministry of Finance announces the National e-Invoice System. We explain the concept and planned timeline.
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15
MAR 2021
JPK
JPK_VAT with declaration — mandatory for all
The new JPK_VAT replaces the previous VAT-7 declaration. We discuss the structure and common mistakes.
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11
JAN 2021
VAT
SLIM VAT 1 — simplification package from 2021
The first SLIM VAT package introduces simplifications in invoicing, corrections and VAT settlements.
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