This page is best for a long-term account-planning question. If you keep contributing to a Roth IRA, how large might the account become by retirement, how much of that total comes from your own contributions, and how much of the value comes from tax-free growth? Many users care about that mix, not only about the final balance alone.
The current Roth IRA page uses annual contribution, current age, retirement age, current balance, expected return, and tax rate to estimate total contributions, total earnings, display tax savings, and final balance. It is best for long-term planning and scenario comparison rather than for formal tax analysis.
This is the amount you plan to add each year. The current page does not check legal contribution limits or eligibility rules, so you still need to apply real-world judgment.
These inputs determine how many years remain for contributions and growth before retirement. Time is one of the strongest drivers in the model because compounding is highly sensitive to horizon length.
It is best for comparing how annual contribution, starting balance, retirement age, and return assumptions may change long-term account size.
No. The current implementation does not validate IRS annual caps or income eligibility and simply calculates from what you enter.
No. The current page estimates tax savings as total earnings times the entered tax rate, which is a display value for tax-free growth rather than a filing deduction or IRS conclusion.
The current implementation adds each annual contribution before that year's growth, so it behaves more like a beginning-of-year contribution model with annual compounding.
Free Roth IRA growth estimator for final balance, starting balance plus contributions, earnings, and a tax-value display from annual contribution, age, balance, return, and tax rate; IRS limits and eligibility are not checked.