I read the news, it seems the regulators in Brazil want to take everything they can from their people who are in crypto.

- Brazil’s 17.5% crypto tax: How the new rules hurt small investors most

Our country also imposes taxes, but it is limited to trading activities that occur on our local regulated CEX platforms. Unlike you where your government also wants to reach what should not be their domain.



Increasing pseudonymity of your address may be a solution for you, but if the Brazilian government is serious about tracking you, I don't think you can avoid them. You can try it first, using CoinJoin or a mixer service, hopefully it will work as you expected. If that doesn't work, the only way you have is to store Monero, your government probably won't be able to track it.

Maybe you'll like these lists:
(1) BitList
(2) BitMixList

These are some reasons why one needs to keep their assets in their self-custodial wallet outside the exchange, because once you get involved with a centralised exchange, just know that you will definitely not be able to escape any regulations and government activities as well. This is why enthusiasts are advised not to always hope to keep their assets and funds with a third party, but rather their own self-custodial wallet, which provides them with better and safer security and access to their funds without any third-party actions.

I will advise you not to use any centralised exchange to store your assets. currently, there are decentralised exchanges coming up that do not require your identity, you can do your trade with them and go your way. How about you check the  CCE CASH, here is their announcement thread, and they have a campaign going on and it is managed by icopress.

I believe acquiring Bitcoin through DEX and sending it to your non-custodial wallet unlinks it to you directly, but it's not fool proof since if you've sent coins to that address from CEX, or in anyways received coins that was traced back to CEX, the address can be linked back to you.

It is best to create a new address in a bid to stay more anonymous, it's also safe to declare your taxable  assets to the government so that you don't face the law in the future while avoiding taxation.

Wassabi wallet no longer offers conjoin features from last year, electrum and Trezor can be a good option if you want to pursue more anonymity.

I know Bitcoin and cryptocurrencies to be comprehensively integrated there in Brazil, so do you intend to outsmart the RFB by scaling away from giving your trade reports to the affirmative tax jurisdiction?

However, Bipa is a regulatory Fintech that facilitates on crypto transactions, if you buys your Bitcoin there and transfers it to any other wallet whether non custodial, you wont stay fully anonymous to be off track because you would still have to give record about the Bitcoin you bought therein.
Though the asset after sent to a self custodian wallet will be safe and privately secured under your custody but due to public ledger of the Blockchain, the RFB can still have you on track in reference to your buying history with the Bipa.
Not to have the regulations get you on track you will have to acquire your Bitcoin in a decentralized network.

If you don't want to be taxed in that manner, just make sure you are completely independent of the government. That will mean you self-custody and take responsibility of your bitcoins rather than depending on exchanges licensed and supported by your government.
The idea behind taxations is to enable governments fund things people who pay the taxes will benefit from. So if you don't want to be part of it then you make sure you don't benefit from things funded with taxes. One of the best way to ensure this doesn't happen is to live seperately in places where you are unlikely to benefit from tax funded services, infrastructures, etc. That would likely be remote communities where people provide for all their personal needs and sometimes contribute money to fund public infrastructures/services.  Same is applicable in cyberspace, you can just join a opensourced, decentralized communities where people provide all their needs and are independent of typical governments.

It's not ethical or moral to dodge taxes when you are supposed to contribute. But if you selfcustody without relying on government in anyway it becomes moral. If you are worried about governments abusing this in the name of penalizing you for not paying taxes, even though you don't benefit from tax funded services/infrastructures, you could simply go fully decentralized and don't pass through governments licensed platforms. There is nothing wrong in doing this as long as you are completely independent of the government.