Ключевые слова: 1040, 2020, accountant, accounting, america, american, annual, april, balance, calculate, calculator, check, concept, deadline, detail, document, economy, federal, file, fill, finance, financial, form, government, income, individual, internal revenue service, law, money, name, office, paper, paperwork, pay, payment, refund, return, revenue, savings, season, tax, taxation, text, time, united states, us, usa, work,