One thing that sometimes causes confusion is how the CD is structured behind the scenes.
Some CDs credit interest monthly or annually, even if you can’t withdraw it without a penalty. In that case, the bank may report that interest each year on a 1099-INT. Other CDs don’t credit anything until maturity, so nothing gets reported until the end.
That’s why two banks can handle what looks like the same product differently. It’s not that one is wrong, rather it's usually about how and when the interest is credited on their books.
Also, if a CD runs longer than one year, there can be additional reporting rules that cause interest to be reported before maturity, even if it’s not paid out yet. Most banks handle that automatically through the tax form they issue.
If you’re opening CDs in the future and want to avoid surprises, you should check whether the interest is paid at maturity only or credited periodically. Some comparison sites like CD Valet (a huge CD marketplace with over 40,000 CDs from federally-insured banks and credit unions across the U.S.) show term structures and disclosures across banks and credit unions, which can make it easier to see how the interest works before you commit.
Hope that helps explain why you’re seeing different treatment.
