Accounting Firms in Łódź: How to Choose an Accountant, What KSeF Changes and 9 Firms with Up-to-Date Data
The SeoAI Biz directory lists over 280 accounting firms in Łódź. Choosing based only on price or distance is easy, but successful cooperation usually depends on scope of services, firm's insurance and a clear contract. Below you'll find questions for the first meeting, KSeF rules for 2026…

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What kind of service do you need
- Lump-sum tax (ryczałt) – the office keeps a record of revenue and settles tax and social security contributions.
- Tax ledger of revenues and expenses (KPiR) – typical for sole proprietorships on the progressive scale or the flat tax.
- Full accounting (pełna księgowość) – accounting books, mandatory among others for limited liability companies (spółki z o.o.); includes the financial statements at year end.
- Payroll and HR – employment contracts, payroll lists, ZUS and PIT settlements for employees. If you employ people, make sure the office handles this.
- Statutory auditor (biegły rewident) – needed when your company's financial statements are subject to audit; an ordinary accounting office cannot do this.
What to ask the office before signing a contract
Liability insurance (OC). Since 2014, providing bookkeeping services as a business does not require a license or certificate, but the firm doing it must have mandatory liability insurance (OC) – as stipulated in Article 76a of the Accounting Act. Ask for a copy of the policy.
Division of duties. The contract should state who submits returns, JPK files and ZUS settlements, the deadline for handing over documents, and who is responsible for a delay.
KSeF. Ask whether the office downloads your purchase invoices from KSeF on its own and what authorization it needs for that.
Tax advisor. A bookkeeper maintains records, while tax advisory is a separate profession. You can check a tax advisor's entry on the website of the National Chamber of Tax Advisors (KIDP).
Contact. Establish who your contact person is, during what hours they respond, and whether you can submit documents online.
KSeF in 2026
According to the Ministry of Finance:
- from 1 February 2026 invoices in KSeF are issued by taxpayers whose sales (subject to VAT) exceeded PLN 200 million in 2024,
- from 1 April 2026 the obligation applies to all other taxpayers,
- for sales documented with invoices up to PLN 10,000 gross per month, until the end of 2026 you may issue invoices outside KSeF,
- receiving invoices through KSeF is mandatory from 1 February 2026,
- proforma invoices, internal invoices and uznaniowe or obciążeniowe notes are not sent to KSeF; corrective notes (noty korygujące) were abolished from 1 February 2026.
Free help
- National Tax Information (Krajowa Informacja Skarbowa) – taxes: 22 330 03 30 (from a mobile phone) or 801 055 055 (from a landline), kis.gov.pl.
- ZUS Telephone Service Center – contributions and insurance: 22 560 16 00, zus.pl.
9 accounting offices in Łódź
This is not a ranking. These are offices from our directory that have their own working website; addresses, phone numbers and service scope come from those websites (as of 1 November 2026). Call before meeting.
Kancelaria Rachunkowo-Doradcza Reczek & Jakubowicz – ul. Inżynierska 11
Reczek & Jakubowicz Sp. z o.o., ul. Inżynierska 11, 93-569 Łódź, tel. 42 636 45 87 or 512 262 099. Scope: accounting books, HR, ZUS and VAT settlements, JPK files, company services, financial statements and advisory. Website: reczek-jakubowicz.pl. Directory listing.
ABM Consulting – ul. Nawrot 9/11
Adam Mularczyk's office in the city centre, ul. Nawrot 9/11 lok. 7, 90-060 Łódź, tel. 42 635 39 16, Monday–Friday 8:00–16:00. Scope: KPiR, lump-sum tax, full accounting, VAT settlements and financial statements. Website: abmconsulting.com.pl. Directory listing.
Biuro Rachunkowe Duet – ul. Zagajnikowa 31A
Ul. Zagajnikowa 31A, 91-849 Łódź, tel. 42 613 12 51, 505 813 437, 691 401 035 or 691 401 036. Scope: full accounting, ZUS settlements, company services and advisory; documents can also be submitted online. Website: biuro-duet.pl. Directory listing.
Finansus – ul. Piotrkowska 173
Katarzyna Zientalska-Kalita's office, ul. Piotrkowska 173, 90-447 Łódź, tel. 604 269 839 or 42 236 24 91, Monday–Friday 11:00–17:00. Scope: KPiR, full accounting, HR and payroll, ZUS and VAT settlements, financial statements, online service. Website: finansuslodz.pl. Directory listing.
Halszka – ul. Zawiszy Czarnego 10
Halina Wnuk's Accounting Office in Bałuty, ul. Zawiszy Czarnego 10 room 101, 91-829 Łódź, tel. 578 710 508 or 695 406 894, Monday–Friday 8:00–16:00. Scope: KPiR, lump-sum tax, full accounting, HR and payroll, VAT settlements, KSeF and online service. Website: brhalszka.pl. Directory listing.
Biuro Rachunkowe Agnes – ul. Żurawia 7/9
Krystyna Szczepańska's office, ul. Żurawia 7/9, 91-463 Łódź, tel. 42 235 14 33. Handles accounting, taxes, and HR and payroll for individuals and companies. Website: ksiegowosc-agnes.pl. Directory listing.
Agencja ARK – ul. Łąkowa 3/5
Aneta Kosyl's office, ul. Łąkowa 3/5, 90-562 Łódź, tel. 691 054 333. Handles accounting for micro, small and medium-sized businesses, the tax ledger of revenues and expenses (KPiR), and HR and payroll matters. Website: agencjaark.pl. Directory listing.
Biuro Rachunkowe EM – ul. Przybyszewskiego 113
Elżbieta Mroczek's office, ul. Przybyszewskiego 113, 93-110 Łódź, tel. 42 661 61 09. Handles bookkeeping and accounting for individuals and commercial law companies. Website: ksiegowosc.lodz.pl. Directory listing.
Eko-Bilans – ul. P.O.W. 29/3
Eko-Bilans Sp. z o.o., Statutory Auditors' Office no. 64, ul. P.O.W. 29/3, 90-248 Łódź, tel. 42 631 95 36 or 42 631 98 66. Audits of financial statements, as well as forensic expert opinions, advisory on liquidation and business plans. Website: eko-bilans.com.pl. Directory listing.
All accounting offices in Łódź
You can find the full list of accounting and bookkeeping offices in Łódź in the directory: Accounting offices in Łódź. Do you run an office in Łódź and want to update your directory listing? The owner can do it after logging in at seoaibiz.pl.
Frequently asked questions
Does a bookkeeper need a certificate?
No. Since 2014, providing bookkeeping services as a business does not require a license or certificate. The office must, however, have mandatory liability insurance (OC).
From when does my small company have to issue invoices in KSeF?
From 1 April 2026. Exception: for sales documented with invoices up to PLN 10,000 gross per month, until the end of 2026 you may issue invoices outside KSeF. Purchase invoices are received through KSeF from 1 February 2026.
When do I need a statutory auditor rather than an accounting office?
When your company's financial statements are subject to audit. The audit may be carried out only by a statutory auditor; an ordinary accounting office keeps the books and prepares the financial statements.
Where can I ask about taxes for free?
At the National Tax Information (Krajowa Informacja Skarbowa): 22 330 03 30 from a mobile phone or 801 055 055 from a landline. For contributions, ask ZUS at 22 560 16 00.
Sources
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