Yes, you can amend a return even if it was filed by another accountant. You’ll just need to fill out the amendment form (1040X in the US) and send it in—TurboTax sometimes limits this if you didn’t file with them originally. In that case, you can do it directly through the IRS or get help from a tax advisor. I had a similar issue and got clear guidance from Eddar Belastingadvies —might be worth checking them out so you don’t miss anything.
