The economic and fiscal costs of gender inequalities, such as the gender employment gap, are high. Intersectional analysis improves understanding of gender gaps and the measures needed to address them. This paper looks at how gender budgeting can be expanded to include intersectional analysis, allowing for consideration of how gender inequalities intersect with inequalities based on race, socioeconomic class, sexual orientation and disability. It provides examples from governments that have started to incorporate an intersectional approach to gender budgeting. It also highlights the main benefits and challenges associated with intersectional analysis and considers what governments can do to support an intersectional approach to gender budgeting.