As per the Circular No: 1 and 2 of 2021 of the General Tax Authority (GTA) issued on 24th March 2021, the key implications of both circulars are as follows: 
 
1. With effect from the year ended 31 December 2020, all companies fully owned by Qatari/GCC nationals are required to file income tax returns regardless of their income or capital (Circular No: 2)

2. The deadline for filing the income tax returns for the taxable year 2020 has been extended for 2 (two) months for foreign companies and 4 (four) months for companies fully owned by  Qatari/GCC nationals. (Circular No: 1)
 
Please find below a summary of the deadline for filing income tax returns for all entities according to the circular 1 and 2 of 2021 issued on 24 March 2021. 
 
Important Note: 
It is pertinent to note that failure to comply with filing of tax return on or before the deadline applicable for each category may result in penalties of QR 500 per day up to a maximum of QR 180,000 as the case may be. 
 
Disclaimer 
The above is only a summary of the current update and is based on the information currently available in the public domain which we are subject to change. The above tax updates have been written in general terms and does not constitute any form of advice or recommendation by Office Saad Ahmed Al Kuwari For Accounting & Auditors and thereby cannot be relied on to cover specific situations; application of the principles set out will depend upon the particular circumstances involved and we highly recommend that you obtain professional advice before acting or refraining from acting on any of the contents of this material.