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From flathub.org — the developer's official site. Flatnic doesn't host, re-package or modify files.

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How to install GCAP 2026

  1. Click Download — the developer's official website opens in a new tab.
  2. Download the latest version there and run it. Choose Custom/Advanced where offered, and skip any bundled extras.
  3. Prefer the command line? With Flatpak you can install and update it with: flatpak install flathub br.gov.fazenda.receita.gcap2026
  4. Open GCAP 2026 once it finishes installing.

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