A 529 college savings plan can be a powerful tool when saving for future education expenses because investments in the plan can increase tax-free, but many savers don’t take full advantage of all the benefits that 529 plans have to offer. One common deterrent to investing through a 529 plan is the concern that assets in a 529 account will reduce financial aid eligibility. While it’s true that 529 assets have an impact on financial aid, the effect is likely smaller than you think.