To sponsor a spouse or partner for a UK visa, the UK-based partner typically needs to meet a minimum income threshold or have sufficient savings. The couple must prove their relationship is genuine and subsisting. The foreign partner generally needs to meet an English language requirement and pass a tuberculosis test if from certain countries.

The UK offers various routes for family members to join those already in the UK, including spouse/partner visas, child visas, parent visas, and dependent visas attached to work or study routes. Eligibility criteria typically include relationship requirements and financial thresholds.