Key facts
- Martin Lewis has warned unmarried couples living together about potential tax benefits they are missing.
- The warning concerns significant financial advantages that could be overlooked.
Personal finance expert Martin Lewis has issued a stark warning to individuals living together who are not married. He highlighted that these couples could be missing out on substantial tax benefits. The specific details of these benefits were not elaborated upon in the provided text, but the alert suggests a significant financial oversight for many cohabiting, unmarried individuals.