529 plans are a popular way to save for education, and while there is no federal deduction, many states offer a meaningful state tax benefit. Contributions to a 529 plan do not reduce your federal taxable income, but over 30 states allow residents to deduct contributions on their state return, sometimes up to a certain annual limit. The money grows tax free inside the account, and withdrawals used for qualified education expenses are also tax free, which is where the real federal tax benefit lives. Recent law changes allow 529 funds to be used for K-12 tuition up to $10,000 per year and for student loan repayment up to a lifetime limit. If your state offers a deduction, contributing to your home state's plan rather than another state's plan is often required to get the state tax benefit.