Objective Care partners of persons living with dementia perform significant financial planning in partnership with the person for whom they care. However, research is scarce on care partners’ confidence and experiences with financial planning. The purpose of this study was, first, to quantify care partners’ confidence across different financial planning topics. We sought to understand whether income, education, relationship type, and years of experience are related to care partners’ level of confidence in financial planning. Second, we sought to better understand the reasons for these confidence ratings by examining care partners’ experiences of financial planning. Methods We conducted an online survey that asked a combination of quantitative and qualitative questions to understand care partners’ confidence and experiences with financial planning. Participants were nationally recruited care partners of persons living with dementia. Multivariate linear regression was used to understand different subgroups’ levels of confidence in each financial planning topic. Inductive thematic analysis was used to understand qualitative data. Results The financial planning topics in which participants ( N = 318) felt the least confident were: options when there is not enough money to provide care; tax deductions available to cut care costs; and sources of money from government programs for which the care recipient is eligible. Differences in confidence were observed among care partners with lower incomes, less experience, and caring for a parent. Qualitatively, participants described the challenges of care budgeting and protecting personal finances; confusion about long-term care insurance and accessing resources; and, among confident care partners, reasons for this sense of preparedness. Conclusions These results underscore the need for tailored interventions and technologies that increase care partners’ confidence in specific aspects of financial planning, including long-term care insurance, available financial support, and what to do when money runs out.