Hi everyone - I have a question as a total noob in CGT.
My US employer has a share schema: I was awarded a certain number which vest over time (when vesting, some are withheld for tax purposes).
For example:
2018: I was awarded 1000 shares at 90 USD each
2019: shares vested. At vesting, 400 shared were withheld (for income tax, USC, etc.) and I got to keep 600 shares at 100 USD each (so my account value at that moment is 60 000 USD)
2020: if I sell the 600 shares at 300 USD each (=180 000 USD). Let's assume no cost of sale/fee from broker.
According to this
https://www.revenue.ie/en/tax-professionals/tdm/share-schemes/chapter-02.pdf, I have to pay CGT on the sale. However, what is the taxable amount for CGT in this case? (from which then I have to detract the exemption and then apply the CGT %)
Is it simply the total of sale minus the "value" of the 600 shares I got to keep after vesting: 180 000 - 60 000 = 120 000 USD? Or do I have to consider the value of the total number of shares that vested (as in, the 1000 at 90USD = 90 000, including the ones that were withheld).
I ask because most examples talk about people buying and then selling shares (so there's a clear cost of acquisition and cost of sale). In my case, what would be the cost of acquisition I should consider?
Thanks a lot for any guidance!