One who fears any sort of oppression (financial, physical, emotional) whether it be on an individual level, company level, Sars or governmental level, the following Amals can be done:
Amal #1 (Ayat e Kareema)
Recite 125 000 times the Ayat e Kareema. This can be done by a group of individuals and over multiple sitting as well.
The Ayat e Kareema is:
لا إِلَٰهَ إِلَّا أَنتَ سُبْحَانَكَ إِنِّي كُنتُ مِنَ الظَّالِمِينَ
Amal #2 (Ayat in Surah Yaseen)
Whenever the thought of the oppression comes to mind read the following Ayat of Surah Yaseen 7 times whilst imagining as though Allah Ta’alah has placed a blockage in the oppressor’s path:
وَجَعَلْنَا مِن بَيْنِ أَيْدِيهِمْ سَدًّا وَمِنْ خَلْفِهِمْ سَدًّا فَأَغْشَيْنَاهُمْ فَهُمْ لَا يُبْصِرُونَ
According to another Qiraat: سُدّا with ُ. Some Aamils advise reading the Ayat according to this Qiraat.
Amal #3 (حم لا ينصرون)
After every salaah recite 48 times حم لا يُنْصَرُوْن whilst imagining that they are not being assisted against you.
Amal #4
After every Salaah read:
يا قَوِيُّ يا مَتِينُ اِكْفِنِيْ شَرَّ الظَّالِمِيْن
Amal #5 (حمعسق كهيعص)
Do the following Amal:
Read ح م ع س ق and close the fingers of the right hand on reading each letter starting with the baby finger until all fingers are closed.
Then read ك ه ي ع ص and close the fingers of the left hand on reading each letter, starting with the baby finger until all fingers are closed.
Then read Surah Feel and on coming to the word ترميهم repeat the word 10 times. And on each time, open each finger in the order that it was closed.
while doing this Amal, visualize your enemy being destroyed in front of you.