Calendar of tax obligations for self-employed workers in Portugal

Independent workers on green receipts face upcoming tax and social security deadlines through the end of October. Key dates include October 20 for paying September social security contributions, monthly personal income tax withholdings, monthly VAT returns for August transactions, and EU services statements, with VAT payments accepted until October 26. By October 31, self-employed workers must submit their quarterly declaration via Segurança Social Direta reporting gross income from July, August, and September to calculate their relevant income base.