Advisor Carroll MacNeill was a policy advisor to
Frances Fitzgerald from April 2011 until June 2013. She then worked for the
Minister for Justice and Equality Alan Shatter from September 2013 until his resignation in May 2014. In October 2017, she was appointed as an advisor to
Minister for Housing, Planning and Local Government Eoghan Murphy on the National Planning Framework and the creation of the Land Development Agency. She worked with Murphy's office until January 2019 when she left to work for a Public Relations firm.
Councillor In May 2019, she was elected to
Dún Laoghaire–Rathdown County Council for the
Killiney–
Shankill local electoral area, a position she held until her election as a TD in February 2020.
Teachta Dála In early 2020, Carroll MacNeill was selected internally by the Dún Laoghaire branch of Fine Gael to replace
Maria Bailey on the ticket for the
2020 general election, following "Swinggate", a controversy revolving around a dubious legal claim made by Bailey that resulted in her subsequent deselection. Frank McNamara was co-opted to Carroll MacNeill's seat on Dún Laoghaire–Rathdown County Council following her election to the Dáil. In December 2020, 19-year-old Fine Gael member Dylan Hutchinson dropped his campaign for a council seat after being confronted on a Dublin beach by Jennifer Carroll MacNeill about an alleged derogatory social media post he made about a previous TD. Hutchinson was nominated as a candidate to fill a vacancy on Dún Laoghaire–Rathdown County Council after Barry Ward was elected to the Seanad in April 2020. Carroll MacNeill was the Vice Chair of the Fine Gael Parliamentary Party and Spokesperson for Equality. She was also Vice Chair of the Justice Committee as well as a member of the Public Accounts Committee, the Implementation of the Good Friday Agreement Committee, the Gender Equality Committee and the Autism Committee and was also a member of the Special Dáil Committee on Covid prior to its disbandment into sectoral Committees. In December 2022, she was appointed as
Minister of State at the Department of Finance with special responsibility for Financial Services, Credit Unions and Insurance following the appointment of
Leo Varadkar as Taoiseach. In April 2024, she was appointed as
Minister of State for European Affairs, after
Simon Harris became Taoiseach. At the
2024 general election, Carroll MacNeill was re-elected to the Dáil. On 23 January 2025, Carroll MacNeill was appointed as
Minister for Health in the
government led by
Micheál Martin. In a 2025 interview, she said that women politicians should not be held responsible for "everything related women", resisting questions about whether she would require the next Cabinet to have an equal number of men and women, stating this is "not how government operates". ==Political views and profile==