Last year I left a privately held start-up company in which I had some NSO options. On leaving I exercised my options at the set price. A few months later they did a funding round and I was able to sell my stocks to the new investors at fair market valuation. No taxes were withheld and I got a check for the full amount. I paid estimated federal and state taxes immediately. Now it's time to do my tax return. I have received my W-2 from the company but it does not make any mention of the sold stock. I have not received a 1099-B. The transaction was done via Carta.
Questions, 1) shouldn't it appear on W-2 or a 1099-B? and 2) how do I report this on my tax return? Is the income earned simply "my selling price minus my exercise price" and that difference is taxable as income or as short-term capital gains?
