@fanfare
That is not correct. Prior Roth IRA withdrawals are important if you are under age 59 1/2, or if the IRA has been open less than five years, no matter how old you are.
As stated, only you have records of your prior Roth IRA contributions and prior withdrawals. They should be reported on your income tax return or on a form 5498, and you can sometimes get that information from the IRS using the transcript service, but that only goes back 10 years. Or you may be able to get the information from your broker.
