When selling shares can you deduct currency commission from your tax liability?

[Joe Nonety]

I sold US based stock options and ESPP shares a couple of weeks ago and noticed that going by the exchange rate for the day (using xe.com) and what I actually got, differed by about €50. Can I deduct this €50 from my tax liability (as well as the fees charged by the online broker/bank for my transaction)?
Also, for the ESPP shares, when calculating the tax do I use the exchange rate the day the shares vested, the day I asked for the withdrawal of the money or the day the money entered my bank account (each were separated by a week)?
Likewise for when calculating what currency commission was taken do I go by the day I asked for the withdrawal from the US online broker/bank or for when the money entered my account?

 

[Joe Nonety]

Anyone with any idea about this?
I'm wondering can the fees (comission and broker) get deducted from the final tax liability or if they're just deducted from the taxable amount?

 

[TomOC]

Sorry to bring up an old post but does anyone have any information on this? Thanks