The Value Added Tax (VAT) http://polishtax.com/information/polish-tax-law/vat-law/
Personal Income Tax http://polishtax.com/information/polish-tax-law/income-taxes/pit/
Corporate Income Tax http://polishtax.com/information/polish-tax-law/income-taxes/cit/
Registration for taxes in Poland http://polishtax.com/information/polish-tax-law/tax-registration/