fill out Form 4868

tax extension request, automatic extension form, individual income tax extension, federal tax extension, additional time to file, filing deadline extension, tax year extension, estimated tax liability, total tax due, tax payment voucher, electronic payment option, check payment, bank account payment, taxpayer information, social security number, spouse information, filing status, adjusted gross income, balance due, refund amount, federal income tax withheld, income estimate, payment amount, extension deadline, filing instructions, income tax return delay, penalty avoidance, interest charges, payment record, financial statement, annual tax filing, paper filing option, electronic filing option, signature section, mailing address, overseas taxpayer, resident alien, nonresident citizen, tax calculation worksheet, revenue payment