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Siiami

Accounting services & Bookkeeping Services in Poland

bookkeeping in poland

Full accounting in Poland for Companies and Sole Proprietors

SIIAMI – legal and accounting company based in Gdańsk, provides comprehensive accounting services in Poland for foreign-owned entities, local firms, and ambitious entrepreneurs. As a trusted accounting provider, we offer dedicated accounting support in Poland, ensuring full compliance with Polish regulations for businesses of all sizes.

We assist a sole business person running a business in Poland as well as international companies and companies operating across multiple markets.

How We Can Help Your Business in Poland with Accounting Services 

We deliver modern online bookkeeping in Poland, helping international entrepreneurs entering the Polish market manage their financial operations seamlessly. We optimize your operational workflow and provide convenient and flexible support for companies registered in any city in Poland. 

Bookkeeping

Payroll services

Tax services

Accounting for individual entrepreneurs and sole traders (JDG)

Our firm provides accounting in Poland for foreign-owned sole proprietors and individual entrepreneurs. Depending on your business model and volume, we manage simplified accounting or assist if you transition to full revenue books.

Our services for sole traders include:

  • Maintaining accounting documentation and revenue books in accordance with Polish accounting and tax requirements
  • tax, audit, KSeF integration and social security calculations
  • issuing invoices and their registration
  • preparation of tax returns and settlements with the tax inspectorate
  • audit support and cooperation with certified auditors
  • consulting on taxation issues

By cooperating with us, you can fully focus on long-term business growth while we handle your day-to-day accounting tasks. Modern accounting system integration means you don’t need to visit our office in Gdańsk to transfer financial documents.

Usługi prawne online
legal services for companies and individuals

Bookkeeping services in Poland for limited liability companies (Sp. z o.o.), enterprises and non-profit organisations

Commercial entities and corporate structures registered in Poland have a legal obligation to keep full bookkeeping. Our scope of accounting services covers the managment of book of accounts and full statutory record-keeping.

Full accounting for comapies include: 

  • keeping books of accounts in accordance with the Polish Accounting Act and general Polish law
  • prepare annual financial statements, balance sheet, profit and loss statements, cash flow statements
  • calculations of VAT and other tax liabilities,
  • dealing with social insurance and other compulsory contributions,
  • tax and legal counselling for commercial companies.

Our specialists also provide support in company registration, advise on cost optimisation. The high level of our comprehensive supporting accounting service allows you to be sure that all financial matters of your company are in safe hands, preventing costly accounting errors. Recordkeeping for companies in Poland and non-profit organisations.

Why choose our accounting outsourcing services in Poland

Professional experience in whole range of accounting services

We have extensive practical experience in accounting services in Poland and bookkeeping management, providing services for businesses from a variety of backgrounds. Our experienced accounting teams ensures accuracy, compliance, and solutions tailored to your individual needs.

Convenience and local support

Our services allow you to manage your accounting online, but you always have the option to visit our offices in Gdansk for personalised consultations. This combination of online convenience and local accounting support ensures your business stays up to date with regulations while benefiting from personal contact.

Comprehensive services for every business

We provide comprehensive support for all types of businesses, delivering efficient accounting for sole proprietorships up to full-scale bookkeeping for companies of any size. Our accounting department office provides financial reporting, tax preparation, and access to the system, helping you maintain transparency, efficiency, and compliance

Personalised approach

We adapt our accounting model to the needs of companies and entrepreneurs working in any field of activity. Our solutions focus on business growth, making sure each client receives a strategy suited to their operations.

Clarity and transparency

We offer clear pricing for our services, transparent terms for long-term accounting cooperation, and constant contact with a personal manager for quick answers to your questions. As a leading accounting provider, we guarantee experience and expertise in managing your finances while providing access to financial information and overall business clarity.

Additional Business Solutions

Frequently asked questions ( FAQ )

Accounting in Poland has its own specifics. The main task of an accountant is to keep accounting books and maintain accurate accounting records of all business transactions. Based on these records, an annual financial report is prepared in compliance with accounting standards and submitted to the tax office and the company register (KRS or CEIDG) by 30 April of the following year.

Polish accountants also prepare the main tax reports: Income tax (CIT) – monthly or quarterly, Value Added Tax (VAT) – monthly. Individual entrepreneurs submit an annual PIT report to the tax inspectorate. Both monthly and annual reports are also submitted to ZUS. If the entrepreneur is VAT-registered, monthly VAT reports are required. Our services are designed to cover every business, including those with specific needs related to running a business.

Siiami is a leading accounting firm which specializes in professional accounting services and support for companies, sole proprietors, and other businesses. We offer end-to-end record-keeping services tailored to meet diverse business needs on the Polish market.

We manage all financial processes including invoice issuance, financial management, preparation and submission of reports and declarations (VAT-UE, VAT-9), outsourcing accounting tasks like payroll, personnel management, correspondence with state authorities, and preparation of financial documents for leasing or lending purposes.

Our pricing structure depends on ownership type, business activity, taxation system, number of employees, and monthly transaction volume. We provide tailored packages suitable for all companies.

Entrepreneurs run their business independently, while accountants handle accounting tasks, reflecting all activities in the books, calculating taxes and contributions, and submitting necessary declarations. We are a trusted provider of accounting services for businesses of all sizes.

Consultations with an accountant, lawyer, and tax consultant are available. We also provide additional services to support businesses in compliance with the Polish Accounting Act and other regulations.