KSeF mandatory from April 1, 2026 — is your business ready?

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Your ZUS and tax advisor — available around the clock

Source-cited answers in 10 seconds. Smarter than a calculator. Cheaper than an accountant.

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Poland has 2.7M sole proprietors — and no AI advisor

ZUS rules change every year. In 2025 alone, health insurance rules, ZUS Plus thresholds and KSeF were all updated. No calculator keeps up.

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4x
Tax forms available
1,773
PLN / mo. full ZUS 2026
20/II
Tax form change deadline
300k
Foreign JDG owners

Who uses Zusia

01

IT Freelancer B2B

8–25k PLN/month on contract. You want to know: am I on the right tax form?

  • ›Lump-sum 12% vs flat 19% tax
  • ›Preferential ZUS – Small ZUS Plus
  • ›KSeF — what to do before April 2026
02

Foreigner with JDG

Ukrainian, Belarusian or other foreigner. Language barrier blocks access to Polish regulations.

  • ›Answers in English, Ukrainian, Russian
  • ›Translation of legal acts
  • ›Step-by-step from JDG registration
03

New JDG (0–12 mo.)

You just started a business. Don't know where to begin: which ZUS, which tax form?

  • ›Start relief — conditions and duration
  • ›Plan for first 6 months
  • ›Tax form change deadline

Answer in 10 seconds, based on current law

01

Ask a question

In Polish, English, Ukrainian, Russian or Belarusian. Write like you'd ask a friend.

02

RAG searches sources

Searches official PDFs: ZUS.pl, podatki.gov.pl, Sejm.gov.pl. Current documents only.

03

Answer + source

Exact numbers and a link to the legal basis. Always marked: information, not advice.

Doesn't guess — cites official sources

// Knowledge base · 2026 statusActive
ZUS.pl
Contribution tables, instructions, forms 2026
✓
podatki.gov.pl
Tax forms, PIT, VAT, JPK_V7M
✓
Sejm.gov.pl
PIT Act (J.L. 2025), Social Security Act
✓
KSeF dokumentacja
MF regulation, integration, official FAQ
✓
Re-indexed every 7 days · last: 3 days ago

“I finally understand the difference between Mały ZUS Plus and the regular one. I asked friends for a month — no one explained it this clearly.”

— Developer, Warsaw · Beta tester

“As a Ukrainian with a JDG, I couldn't understand Polish government portals. I got an answer in English with source links.”

— Designer, Kraków · Beta tester

“I was calculating taxes in Excel. The bot showed I was losing ~8,000 PLN a year on the wrong tax form. Changed it in February.”

— IT consultant, Białystok · Beta tester
!

Answers are for informational purposes only and do not constitute tax advice under Polish law. Consult a licensed tax advisor for your specific situation.

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0 PLN
// always free
  • ✓5 questions per month
  • ✓PL / EN / UA / RU / BE interface
  • ✓Source citations
  • —Document upload
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29 PLN
// per month
  • ✓Unlimited questions
  • ✓PL + EN + UA + RU + BE
  • ✓Source citations + dates
  • ✓Conversation history
  • —PDF document upload
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Pro
79 PLN
// per month
  • ✓Everything in Starter
  • ✓Upload PIT / ZUS / VAT PDFs
  • ✓Questions about your own docs
  • ✓ZUS 2026 deadline calendar
  • ✓Priority re-indexing
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