Retirement tax questions

Hi, Yes - $6248.95 is the gain-adjusted amount distributed.  Problem is how do I enter the income earned - $248.95 on turbo tax as income without a 1099-R?  1099-R will not come until 2026 tax time.  Turbo Tax has no way of entering it easily.  I can make my own 1099-R so it gets entered and mail in the returns with an explanation.  I wanted to electronic file but my have to settle on electronic filing.  Thoughts?