Of all the arguments that critics of school voucher programs advance, the one that may resonate loudest with the public concerns school accountability. Opponents say it's not fair to hold public schools accountable for their results (under No Child Left Behind and similar systems) and then let private schools receive taxpayer dollars--however indirectly--with no accountability at all. The authors don't buy that argument entirely. Private schools participating in voucher programs, tax-credit programs, scholarship programs, and such are accountable to parents via the school choice marketplace. The authors don't dismiss it, either. For both substantive and strategic reasons, the authors believe it's time for school choice supporters to embrace accountability, done right. What does "accountability, done right" look like in practice? To find out, the authors sought the assistance of 20 experts in the school choice world--scholars, advocates, program administrators, private school representatives--to help them wrestle with the thorny issues that embody the accountability question writ large. In this article, the authors present the experts' insights, opinions, and advice about how accountability for voucher programs should be structured. The authors then synthesize the experts' views and offer their own take.