The ICO has written to the party after a complaint was made about an online tax calculator tool that also appeared to collect voter data

The Conservative party has been told to improve its data handling by the information watchdog after it released a “tax calculator” that also appeared to be collecting voter data.

The Information Commissioner’s Office (ICO) wrote to the party telling it to take steps to ensure it complies with data protection legislation after a complaint by the Good Law Project (GLP) about privacy safeguards.