Thank you for your enquiry.
Your British partner would need to apply under UK domestic law and he must have a job offer in the UK with income of over £18,600 for you to be eligible to apply to join him. The rule for British citizens with EU nationality is not straightforward when making an application under EU law instead of UK domestic law.
The best option would be for your partner to obtain his Italian passport. Otherwise you as a British citizen would only be eligible to sponsor your partner to join you in the UK under UK domestic law.
If you wish to rate before continuing I would be only happy to address any further questions. Thanks.
My reference to UK domestic law was in relation to your partner applying as a spouse or an unmarried partner. I understand you are currently not in the UK but the term to join was referring to whether your partner comes with you to the UK or comes after you are settled in the UK. In any event, the options you would have are either your partner obtains an Italian passport which he will be able to use to enter into the UK under EU law or you have an offer for work in the UK with the required income and he applies as an unmarried/married partner to join you in the UK or you both have saving of over £62,500.
Savings can be joint. A house does not count as savings. Please rate.