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fillup.pl

Desktop and online tax-form and KSeF e-invoicing software for Polish accountants, firms and tax offices

Poznań, Polandfillup.pl

Highlights

  • New on TeamdayAdded 2026-10-16

About fillup.pl

e-file sp. z o.o. develops the fillup program, which provides access to about 7,000 official forms, e-declarations, JPK files and KSeF e-invoices. The company also offers firmly, a KSeF invoicing and bookkeeping app for sole traders, and fillup | k24, a platform for exchanging documents between accounting offices and their clients.

Customers are accounting and bookkeeping firms, tax professionals, and small businesses such as sole proprietorships. The website lists paid subscription tiers for fillup by number of clients and accountant users, with a free 30-day trial, and a reseller programme for partners.

The company is based in Poznań, with its registered address at ul. Rubież 46 C4/91 in the registry data and a postal address at ul. Jeziorańska 12 on the site. The website is published in Polish and the company is registered in KRS, NIP 7811934421. The site shows hiring-free corporate content and no open positions.

Product: fillup: desktop and online program for filing official forms, e-declarations, JPK and KSeF e-invoices; plus firmly and fillup | k24 for sole traders and accounting offices.

Open jobs

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Tech stack

  • Cloudflare
  • Google Tag Manager
  • Laravel