That’s exactly what I did with mine. I did all the KYC at Kraken and sent it there and to sell for CHF. Receiving the CHF back onto my bank account took quite a while (a week or so).
I don’t know your legislation. But here in Switzerland BTC is simply treated as foreign currency. So course gains are tax-free (if you’re not a trader by profession).
But beware: it may be very important that the BTC were already in your tax balance sheet for wealth-tax before they are just going to appear in your bank account from nowhere.