The Tax Code of the Republic of Azerbaijan

Article 148. Change of control over a legal person
148.0. Where there has been a change in the principal ownership of a legal person for 50 or more percent as compared with the ownership one year earlier, the carry-forward of a loss, deduction or credit from a previous taxable year shall not allowed in the following cases:
148.0.1. the legal person carries out the same ownership activity during three years after the change occurred;
148.0.2. the legal person does not start a new ownership activity during one year after the change occurred.
Article 149. Filing of Tax Returns
149.1. The following taxpayers shall submit tax returns to tax authorities within the terms stipulated in Article 149 of this Code:
149.1.1. resident enterprises;
149.1.2. non-residents who have permanent establishments in the Republic of Azerbaijan;
149.1.3. non-residents, taxable income of which is generated from the Azerbaijani source and specified income of which is not taxed at the source of payment;
149.1.4. private notaries, natural persons with incomes, for which the withholding tax is not stipulated (not possible), or natural persons-residents, obtaining profits from the outside of the Republic of Azerbaijan, including those obtaining profits from royalty.
149.2. Persons mentioned in Article 149.1 hereof (except for private notaries) shall submit their tax return no later than March 31 of the year following the accounting year. Private notaries must submit a tax return to the tax authority no later than the 20^th of next month at the end of each quarter.
149.3. In the event that taxpayer ceases his/its ownership activity in the Republic of Azerbaijan, he/it shall submit the return to tax authorities within 30 days. For the purposes of this Article the accounting period shall cover the timeframe from the beginning of tax year until the day of entrepreneurial activity cessation by the taxpayer.
149.4. Upon the liquidation of a legal person the liquidation commission or taxpayer shall immediately notify the State tax authorities of such liquidation in the manner established by legislation. Termination commission shall give to the tax authority the declaration from the date of liquidation, shown in the decision on liquidation of legal entity, and if this date is not shown for the permanent representation of non-resident, within 30 days upon the date of legalization of the decision by representation of the Republic of Azerbaijan in foreign states (consulates of other state representing the interests of the Republic of Azerbaijan).
149.5. A physical person who is not required to file a declaration may file a declaration claiming recalculation of tax and refund of resources.
149.6. A non-resident taxpayer which has no permanent establishment in the Republic of Azerbaijan and receives income taxed at the source of payment in accordance with articles 125.1.3., 125.1.4., 125.1.5. and 125.1.7. of this Code shall be entitled to the tax refund by filing a declaration about such income. Such declaration shall be filed within the term stipulated by the first sentence of article 149.2 of this Code. Such taxpayer shall be taxed at the rates as determined for the income of the permanent establishment of a taxpayer in the Republic of Azerbaijan in accordance with Article 105.1 of this Code. The expenses of taxpayer incurred in connection with the permanent establishment shall be deductible under the same procedure established for permanent establishments, provided that the tax does not exceed the amount of tax withheld at the source of payment in accordance with Article 125 of this Code.