The amount of money that you can put in your Roth IRA depends heavily on a number of factors ranging from your age to your income. Some people may not have the option at all. For example, a single person who makes more that $124,000 per year or a married couple who makes over $174,000 per year couldn't start a Roth IRA in 2019. Individuals under the age of 50 can add a maximum of $6,000 but those over the age of 50 can add $7,000. There are options that offer no minimum available online but you will probably need to come out some of pocket for some brokerage fees. Other options do have minimums from $250 to $1,000. If you're concerned about minimums, it's best to do some research and find one that fits your specific needs.