Is it better to put money into a Roth IRA or a 401K if over 50 years old?

It depends on your individual financial situation and goals. Generally, contributing to a Roth IRA can provide tax-free withdrawals in retirement, while a 401(k) offers immediate tax benefits but withdrawals are taxed later. Consider factors like current tax bracket, future tax expectations, and investment options available in both accounts. It may be beneficial to contribute to both accounts if possible.