This may sound like a question on a Philosophy 101 midterm exam. But in fact, it’s a real-world tax issue, with huge potential tax consequences for nonresident traders, investors, and users of cryptocurrency, at least to the extent they have financial connections with California. This is all the more true with the recent IRS announcement that it is scrutinizing thousands of cryptocurrency investors. Where the IRS finds taxes due from cryptocurrency, the Franchise Tax Board, California’s taxing authority, is sure to follow.
Why It Matters
California taxes residents on all their taxable income, from whatever source. In contrast, California taxes nonresident only on income sourced to California. Some income is easy to source. Rents from California real estate? It’s California source: California taxes that income even if the owner lives on the moon. Wages from working in California or selling a product in state? Same result, regardless of the taxpayer’s nonresident status.
Those examples are clear. But what happens if the source involves the trade or investment of an intangible asset? Then things get complicated, if not murky. What are the tax consequences of selling founders stock you own in a California startup for a $10 million gain and you now live full-time in Texas? If the proceeds aren’t sourced to California, you owe zero state taxes. If the proceeds are California-source, you might owe over $1.3 million. The same considerations arise with vesting stock options, sales of software, goodwill, trademarks, royalties. And the answer under California sourcing rules when it comes to intangibles is always: “it depends.”
Cryptocurrency falls into the intangible category. And because crypto is a relatively new class of assets, the rules that apply to California taxation remain out of focus.