This is strange if you ask me because in my country also we have never witnessed such situation of the country asking for people on their crypto total asset to no how they would measure the tax, actually if something like that can be done it should be when crypto has become a legal tender on that country because right now it explains that on theory they don't want crypto as legal tender but physically want to benefit from something they disregarded, actually in my country crypto is not a legal tender and nobody has been ask in whatever ways to pay any tax for having crypto.

Knowing Philippines is included into the list of corrupt countries then i dont get surprised about on what the government is trying out to do on here is that despite on being not still totally legal or lets say they are still on observation period but they had already made out some announcement into it citizens on having that 15% tax on every transactions made in crypto?  I dont know if there's someone honest enough on trying out to pay up their taxes on their own will on which we know that since this isnt regulated yet then i doubt that citizens will really be doing that. One of the main reasons on why crypto had become that popular or being supported on which it is because you do have that full control of your funds or simply being decentralized and anonymous. It will really be just that totally laughable if they would be doing the opposite thing. 

As a citizen of such country then i would really be just that simply making up transactions without needing to worry about paying up taxes., as long it isnt regulated then there's no way that you are violating something. It is really just that they are trying out to convince people on doing such stuff. Its never been reasonable, it is really just that they do want to miss out any potential money or taxes on which they could get on with. Its not really shocking that they will really be making out such step for that very common purpose that they do have in mind. It just really sucks that once implemented then there's nothing we can do about it.

with the numbers of users of crypto in the Philippines as well as the value of the crypto that are being transacted per year, it is practically impossible for any government that is constantly sourcing for ways to generate revenue to close her eyes to that source. most of the countries that are taxing gamblers for their win don't openly support gambling but for the sake of the revenue they hope to generate from it, they still tax gamblers and gambling companies.

the kind of government we have and the decision they make does not allow the public question some of their las and so, even if you consider this unreasonable, it doesn't stop them from implementing it. there is far worse unreasonable taxation that happens in different sectors that looks really unspeakable and with time, we have adapted to it and pay it comfortably without any complaint. the most important thing in this context is that they allow crypto transaction and that they are not making policies that suffocate all crypto users to become handicap in making crypto transaction.

There are only two countries globally that have accepted Bitcoin as Legal Tender. Other nations don't make Bitcoin Legal Tender yet but Bitcoin is legally accepted in their countries.

Bitcoin Legal Tender Countries are only El Salvador (the first one) and Central African Republic (the second one).
Bitcoin Legality maps are collected in Some world maps for Bitcoiners.
https://newhedge.io/terminal/bitcoin/legality-map
https://coin.dance/poli/legality
https://www.atlanticcouncil.org/programs/geoeconomics-center/cryptoregulationtracker/

It is not happening yet, but it is scary to think that it can happen because sometimes policies are adopted from other countries if the government of a certain country see that the policies are being successful there. Unreasonable though and scary and I hope that other countries of the world do not think of adopting it because it is his scam and a shame to want the benefits from something that you do not want to acknowledge as a legal tender.

BTC does not have to be a legal tender for it to be taxed, the government taxes profits from the sale of BTC, just as they tax profits on the sale of things like stocks, real estate, etc. If BTC were to be completely banned, then it would be illegal and hence no taxes.

Take note that BTC is a legal tender nowhere in the world, but BTC is taxed in so many countries, that is all the answer you need.

At least in Italy there is something similar. Each year they decide to ask a 0.2% on amount you declare.
And in case you're selling your coins they will tax 26% on your profit.
For a certain point of view this can be considered even acceptable. But due the lack of clear information and the "mistery" related to these fees (it seems some counts were completely wrong) I don't think this is something ethical for crypto owners.
Moreover, it's several years we are waiting for a law but each time they have just the urgency to tax it in a rude way without any logic.
Its really sad because this clear uncover the wast of public resources and the useless role of certain figure that are just idiots in charge.

That’s a different type of income, so it can’t be used as a justification. what we’re specifically talking about here is capital gains tax and it’s important to understand that you only realize a gain when you sell... meaning not crypto-to-crypto transactions, but crypto to fiat.

for example, if you buy Bitcoin at $70K and later sell it for $100K, your profit is $30K.

Since you’re required to pay 15% in taxes, your tax due would be $4,500.

This is the only thing unreasonable about this story that op shared, i believe a 15% capital gains tax on the sale of cryptocurrency is kind of high and it could discourage people from dealing with BTC. I know there are countries with higher, but there are also countries that have favorable crypto laws, some even have a zero percent capital gains tax on crypto held for more than 3 years, those are the kind of laws that crypto people love.