Earlier quoted context omitted.
This might be unpopular but I think there are ways that taxing unrealized capital gains could work without being super radical. 1. Allow unrealized losses to be deducted. 2. Once a certain percentage of the gain is taxed, step up the cost basis by the amount of tax paid. That way you avoid double taxation (once under the unrealized value and again when the asset is sold). 3. (optional) Keep the tax rate on unrealized…
> 1. Allow unrealized losses to be deducted. This seemed really reasonable to me until I started thinking about how it might work in practice. The sequence of returns can make this proposal ineffective in practice, even if it makes sense on first blush. By way of explanation: Let's say you're the founder of Pets.com in an alternate universe where unrealized gains have always been taxed (and correspondingly unrealized…
That said, I don't see why there's a need for a deduction here. There isn't one for property taxes. Sure there is one when you sell your property at a loss, and that's also already the case when selling stock. Additionally such a tax like this won't ever cause you to lose your entire stock ownership as it's always based on a fraction of your ownership. And, last but not least, you could also impose caps or progressions.