Ключевые слова: 2022, 2023, 21 rfi, account, accountant, accounting, administration, annual, banking, blank, business, calculations, changes, concept, corporate, deadline, document, double, earning, economy, euro, european, fee, fees, filling, finance, financial, flag, form, income, individual, investment, legal, loan, mod 21 rfi, money, paper, payment, portugal, portugese, refund, relief, return, savings, schedule, tax, taxation, taxes, taxpayer, year,