Until 22 January

INCOME AND CORPORATION TAX

Withholdings and deposits on account of earned incomes, economic activities, prizes and certain capital gains and attributions of income, gains deriving from shares and holdings in collective investment institutions, lease incomes from urban property, income from capital, authorized persons and balances in accounts.

  • December 2017. Large companies: 111, 115, 117, 123, 124, 126, 128, 230
  • Fourth quarter 2017: 111, 115, 117, 123, 124, 126, 128, 136

VAT

  • Communication of incorporations in December, special regime of the group of companies: 039
  • Fourth quarter 2017: Electronic services: 368

INSURANCE PREMIUM TAX

  • December 2017: 430
  • Annual summary 2017: 480

MANUFACTURING SPECIAL TAXES

  • October 2017. Large companies: 553, 554, 555, 556, 557, 558
  • October 2017. Large companies: 561, 562, 563
  • December 2017: 548, 566, 581
  • December 2017: 570, 580
  • Fourth quarter 2017: 521, 522, 547
  • Fourth quarter 2017. Activities V1, V2, V7, F1, F2: 553
  • Fourth quarter 2017: 582
  • Fourth quarter 2017. Applications for refund: 506, 507, 508, 524, 572

Declaration of operations by registered recipients, fiscal representatives and authorised receivers: 510

SPECIAL ELECTRICITY TAX

  • December 2017. Large companies: 560
  • Fourth quarter 2017. Except large companies: 560

ENVIRONMENTAL TAXES

  • Year 2017. Self-assessment 584
  • Year 2017. Annual self-assessment: 585
  • Third quarter 2017. Self-assessment 587

SPECIAL COAL TAX

  • Fourth quarter 2017: 595
  • Year 2017. Annual declaration of operations: 596