If you're still under the control of centralized institutions like banks then get used to this new development they are demanding from you, that everyone making any form of traditional transaction be it (FX, CBDC, fiat notes) or any exchanges a d transactions in foreign currencies now demands a tax clearance certificate before such could be allowed for proper processing.
You're also to take note that having this tax clearance certificate is not free, you're expected to make a payment for it which attract over hundred thousand naira, which means the government has developed anoth means to incentivise from the public through this requirements and people are left with no other option than to embrace the tax clearance payment except they are going to risk their request unattended to.
This is why bitcoin is more preferred in this kind economy situations among other challenges we encounter with governments and banks, you can't experience such with bitcoin a decentralized network, becau it's not under the control or authority of any country or institutions, you will know the right amount you will be charged for bitcoin transaction, you can adjust the fee, make your transaction without KYC, go private and remain decentralized all with bitcoin and no tax clearance needed because you're not centralized.
Reference link:
https://www.legit.ng/business-economy/economy/1535765-nigerian-banks-demand-tax-clearance-certificate-customers-buy-dollars/
