Portuguese tax resident and sale of UK farmland

[madexpat]

I am a Portuguese tax resident but British Citizen.
I inherited some farm land, in England, from my mother in 2000. Inheritance tax was paid on the estate at this time so there is a valuation of this land. The land has now been sold, it is still farm land and not building land. I know the CGT laws changed in 2015 for non resident UK tax payers so I may have a CGT liability on this although it is not residential.
My question is about the Portuguese CGT liability. I am aware there may be some to pay and I accept this. It is just that my tax advisor here has said that is should have been valued when I became tax resident in Portugal. This seems a little odd to me as who would know to do this and I can find nothing on the web to suggest that you have to do this with any property or land. All I can find is that anything bought/inherited after 1989 is subject to Portuguese CGT.
Hope someone can clarify this for me, thanks.

[AGoodman]

I don't know about Portugal but there should not be any UK CGT to pay. Long term non-residents only pay CGT (actually NRCGT) on UK residential property.

[madexpat]

Thank you for that, I did see that on the HMRC's site.
Just hoping someone can help on the Portuguese side of this.

[darthblingbling]

Are you on the NHR scheme?

Potentially you could be exempt but I would seek local advice. If you're on the scheme then potentially any income in which the other country has the 'right' to tax via the double tax treaty may be exempt in Portugal.

Otherwise it's likely taxed in full on the usual Portuguese rules with no relief available as the UK does not tax.

[madexpat]

Sorry, missed the reply.
No I am not on the NHR scheme, I was here before that started.
I know I will have to pay CGT here and that is not the issue. The issue is and I can't find the answer to this is that my accountant is saying they will base the CGT on the value of the land when I became a resident, not on the value at inheritance in 2000. This was a probate value for inheritance tax purposes. Surely it would be the same as if I had bought the land myself and then sold it, the CGT would be based on the value that I bought it? Hope this makes sense. Thanks.