To toknormal - I suggest for you to consult a good tax lawyer/accountant. Perhaps incorporating as an offshore company can greatly reduce your tax liability.

US/UK are likely the worst places to own a masternode (or even mine for that matter) as your reward is taxed as income the minute you receive it. Not only a nightmare in bookkeeping but also the fact that you might be forced to sell earlier to pay the tax.

Other countries only tax it as income when you sell/trade it. The advantage here is you aren't put under extra pressure to sell as there is no tax due. However, perhaps a small advantage for US/UK, if you can pay the tax due without selling then you can also enjoy the full benefit of the upside as capital gains when you do finally sell. At least that's how it works in the States.

Still other countries have minimal if any taxes.

Something else to consider... miners pay the bulk of their costs upfront in equipment(miners). Then are likely forced to sell to pay for electricity costs and possibly even interest on any loan they might have taken to get the equipment in the first place. Not to mention maintenance and upgrading required in order to continue getting any reward. They have little tax to pay because ultimately they make little money if any on top of everything they already put into it.

Only thing they can do to reduce costs perhaps is to find ways to get cheaper electricity (with many stealing) and keep the machines as cold as possible. Unless you are a large player and have the capital to maintain a sizable share of the hashrate I don't understand why people wouldn't just stop mining and directly buy the crypto they think will go up in value. But to each their own.

With masternodes, you pay the bills (tax) as just part of the profit you made. You won't go in debt and will always make money unless you do your business in countries like US/UK and sell too late and don't at least cover what's due. And I believe there is plenty you can do to greatly reduce this tax liability if you plan and organize your business properly.

Anyways, despite all your doom and gloom, it seems DASH has settled more or less in the 40's on CMC (even when counting numerous stable coins and wrapped tokens above it) and it's only weeks (or less maybe) away from being in a bull market vs BTC. And against USD, $300 is a critical point on DASH's price chart. It seems to me that DASH may have a golden cross against BTC and confirm $300 USD as support in relative short order. This could result in a major explosive move to the upside.

Not financial advice... but if you can hold for the next month or so, you likely will be very happy.