Support

If this little app saved you a few zlotys (or at least a few hours of spreadsheet misery), and you feel like saying thanks — please don't send money to the project. Seriously. Instead, take that gratitude and turn it into something that actually matters. There are people out there who need help far more than an open-source project needs donations. Support those who are struggling, those who lost everything, those who keep going despite it all. Or better yet — support the ones who stand between you and evil. Scroll down to the direct donations section. Every zloty counts more there.

Help with the software

Software issues, feature requests, and contributions are tracked on GitHub. kloPIT is community-maintained — every bug report and pull request directly improves the calculator for the next user.

Reporting bugs

Found a wrong PIT-38 value, an import that crashes, or a layout glitch? Open an issue with the broker, file format and a minimal reproduction. Sensitive data is never required — synthetic samples are fine.

Open an issue

Feature requests

Need a new broker parser, an extra PIT-38 section, or a different rounding rule? File a feature request. Polish tax-law references and broker statement examples speed up triage.

Suggest a feature

Community discussion

GitHub Discussions is open for general questions about Polish PIT-38 filing, treaty rates, and edge cases that don't fit the FAQ. Answers there benefit everyone searching later.

Ask in Discussions

Donate 1.5% Tax (OPP)

Polish OPP organizations with published KRS numbers and active aid related to Ukraine.

Polska Akcja Humanitarna

KRS: 0000136833

Payment Purpose:

Wplacam na pomoc Ukrainie

Humanitarian aid in crisis regions, including ongoing support programs for people affected by war in Ukraine.

1.5% Tax Details Website

Fundacja Ukraiński Dom

KRS: 0000342283

Payment Purpose:

Fundacja Ukraiński Dom — wsparcie integracji Ukraińców

Direct support for Ukrainian refugees and integration in Poland. Provides psychological, educational, and advisory assistance. Has helped over 160,000 people with legal aid, accommodation, and community integration.

1.5% Tax Details Website

Caritas Polska

KRS: 0000198645

Payment Purpose:

Caritas Polska — akcje mające na celu wspieranie Ukrainy

Nationwide humanitarian support network with programs for vulnerable people and dedicated aid actions for Ukraine.

1.5% Tax Details Website

Fundacja Pomagam.pl

KRS: 0000353888

Payment Purpose:

Fundacja Pomagam.pl — Solidarni z Ukrainą

Official crowdfunding initiative supporting humanitarian aid for Ukraine through verified partnerships and emergency response programs.

1.5% Tax Details Website

Fundacja Siepomaga

KRS: 0000396361

Payment Purpose:

0185785 Ukraina

Crowdfunding platform with dedicated Ukraine support program providing humanitarian aid to victims of war in Ukraine.

1.5% Tax Details Website

Direct Donations

Direct donation links to trusted Ukrainian volunteer foundations.

Come Back Alive

Trusted Ukrainian charity supporting defenders and critical frontline needs.

Donate Website

Sternenko Fund

Well-known Ukrainian fundraising initiative supporting defense and humanitarian procurement.

Donate Website

Prytula Foundation

Large-scale Ukrainian volunteer foundation focused on defense and emergency support.

Donate Website

Affiliate Links

Optional affiliate links you can use if they are useful for you.

mBank account referral

If you still want to support the project, and you need a new account anyway, you can use this referral link. It may unlock onboarding benefits for you.

Referral code

bemyfellowm1n1on

Open mBank registration