If your goal is the save for education a 529 is a good choice for tax free growth.
Your returns are based on your investment strategy, but the earnings would be tax free. Assuming modest growth of 4% per year what you put in today would be worth 22% more in five years.
Should you be saving solely for your sibling’s education depends on your personal financial strategy. There are plenty of guides online on how to prioritize your dollars. I like money guys financial order of operations.


You may be surprised that the average 30 year mortgage lasts fewer than 10 years due to being refinanced or paid off like in the event of a home sale. That’s why people use the 10 year yield for comparison.