Yes, in the country where I live there is also no tax deduction from the government and there is only a slight reduction when exchanging bitcoin to fiat currency where my country lives, and the reduction is in accordance with the amount to be received.
and in my opinion it's only a very small reduction and for me it's not a problem.
No tax in my country yet too, the mobile app registered in our SEC may already put tax in transaction fee or in converting our crypto or fiat. The government have no say yet on holding. It will only depend on withdrawals were made. Thanks to instapay option in our country only minimal fee were deducted if depositing in bank from our wallets. I hope it will stay these way and will not implement taxes which might be impossible in the near future when big adoption happens.