Obligaciones fiscales

Companies must comply with a series of
tax obligations
during the month of August 2018, as happens throughout the year.

Do you not know what is the tax calendar in summer that both companies and the self-employed must follow to be up to date with the Treasury?

Below, we summarize all the dates and taxes to get out of doubts and avoid tax surprises that ember your well-deserved vacation.

Calendar of tax obligations for the month of August 2018

Until August 20

– Income and companies

Under this heading, withholdings and income on account of income from work, economic activities, profits from shares and participations of collective investment institutions, income obtained from renting urban real estate, among others, must be declared.

  • July 2018. Large companies: 111, 115, 117, 123, 124, 126, 128 and 230.


  • July 2018. Declaration of operations included in the IGIC registration books and other operations: 340.
  • July 2018: Operations assimilated to imports: 380.

– Manufacturing Excise Duties

  • May 2018. Large companies: 553, 554, 555, 556, 557, 558.
  • May 2018. Large companies: 561, 562, 563.
  • July 2018: 548, 566, 581.
  • July 2018: 570, 580.
  • Second quarter 2018: Except large companies: 553, 554, 555, 556, 557, 558, 561, 562, 563.

Declaration of operations by registered recipients, tax representatives and authorized recipients: 510

– Special Tax on Electricity

  • July 2018. Large companies: 560.

Until August 30



  • July 2018. Self-assessment: 303.

  • July 2018: Group of entities, individual models: 322.

  • July 2018: Group of entities, aggregate model: 353.

Until August 31

– Presentation of VAT form 349

Form 349 is a statement that reports for monthly, annual or quarterly periods.

With this declaration, companies and the self-employed are responsible for clarifying the details of their intra-Community operations,that is, the purchases of goods or services that are carried out to a professional or another company that is located in a Member State other than the European Union.

It should be noted that, in order for an intra-community transaction to be declared, the entrepreneur or professional must be registered in the Register of Intra-Community Transactions (ROI), as well as have an intra-community CIF and issue the invoice without VAT.

The presentation of form 349 must be made by VAT taxable persons who have made intra-community transactions. Although, you will have to meet a number of conditions:

  • The first is that the operation has not been carried out in the territory of application of the tax or TAI. This is the Peninsula and the Balearic Islands, as well as 12 nautical miles. It must be done from a country of the European Union.
  • On the other hand, if they are carried out with the Canary Islands, Ceuta or Melilla, they will be considered imports or exports and not intra-community operations, despite being in the Union. In addition, the seller and buyer must be self-employed or a company and be registered as intra-community operators with identification numbers.

– Form 430: Tax on Insurance Premiums

The 430 insurance premium form is a declaration-settlement that is made every month. This model has three different copies: for the taxpayer, for the collaborating entity and the annual copy.

The summary at the end of the year is attached to all copies of the annual envelope that brings together all the annual settlement periods.

To fill in the fields of form 430, entrepreneurs and professionals must take into account that the supporting numbers that must be found within the model must be a numerical sequence whose first three digits will be the code 430.

The entrepreneur or professional can choosetwo different ways to present the form 430, the administrative or the telematic.

The telematic form must correspond to the aforementioned model and in addition, the income must be carried out within 20 calendar days of the beginning of the month following when the corresponding monthly settlement period ends.

The exception is the one that corresponds to the settlement period of the month of July, which will be presented throughout the month of August and during the first calendar days of September.


As we already anticipated months ago when presenting the
fiscal calendar of 2018,
these are the tax obligations for August that both companies and freelancers must complete, highlighting among them the presentation of forms 303, 349 and 430, whose term will be extended to the month of September.

The Treasury does not go on vacation and, therefore, the fiscal calendar in summer continues for entrepreneurs and professionals. If you need help with any of these taxes, you can contact our expert tax advisors.