Do I need to keep/file "Distribution Statement" for Mega Backdoor Roth IRA?

External question — Personal Finance Stack Exchange Author: Cloudy Original post: https://money.stackexchange.com/questions/156261 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. My new employer offers the Mega Backdoor Roth option. After-tax contributions can be automatically & immediately converted to Roth within the 401(k), and can be rolled over to a Roth IRA at any time. I just did the Roth 401(k) to Roth IRA rollover for the first time. The 401(k) provider (Fidelity) sent me a paper "Distribution Statement" in the mail for this transaction, listing the amount that was transferred to my Roth IRA. Will I need to keep this for tax filing purposes, either when filing for this year or for when I eventually withdraw the funds from the Roth IRA? Or should the broker capture all the relevant information in an end-of-year tax form they will provide?

External answer — Personal Finance Stack Exchange Author: littleadv Original post: https://money.stackexchange.com/a/156263 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. You should receive a 1099-R for the conversion from after-tax to Roth after the year end. You can keep this statement to make sure the numbers match, as you'd do with any other bank statement.