Your account can grow even in years when you can't contribute. You earn interest, which is added to your balance, and then you earn interest on the interest, and so on. The amount of growth your account generates can increase every year due to the magic of compound interest. Simply put, Roth IRAs don't pay an interest rate.
A Roth IRA is similar to a shopping cart, basically it's an empty basket until you fill it up. But with a Roth, you fill that basket with investments, not Cheerios. The growth of your Roth IRA each year depends on how much you contribute and what you invest in. It's impossible to predict because the stock market can be volatile and past performance doesn't guarantee future returns.
Roth IRAs make a profit through capitalization, which helps your money grow more quickly. Whenever your investments generate dividends or increase in size, that amount goes toward your account balance. Then you make a profit with those returns, and so on. That means that your money will continue to grow regardless of whether you contribute extra money or not.
You can freely choose which of the above investments you want for your Roth IRA and change the way you invest your money at any time. For people who anticipate that they will be in a higher tax bracket when they are older or have retired, Roth IRAs may offer a beneficial option, since the money is not taxable, unlike withdrawals from 401 (k) accounts or a traditional IRA. You are responsible for deciding how much you contribute to your Roth IRA and what you want to invest your money in. However, Roth IRAs have income limits, meaning that some people with high incomes may have reduced contribution limits or may not be able to contribute money directly to a Roth IRA.
A Roth IRA is an individual retirement account (IRA) that allows you to withdraw money (without paying a penalty) without paying taxes after age 59 and a half and after owning the account during its five-year retention period. While it can help anyone save more money for retirement, a Roth IRA is often the best option for people who believe they will be in the same or higher tax bracket when they retire than they are now.