To verify if a personal loan provider is authorised by the Financial Conduct Authority (FCA), you can use the FCA's online register. Simply visit their website and search for the provider's name or registration number. Ensure that the provider is listed as an authorised firm to confirm their legitimacy. It’s important to only borrow from FCA-authorised lenders to protect yourself from potential scams and unfair practices. If in doubt, consult with a financial adviser or check the official FCA website for more details.