08/13/2026
That $500 you wired into your LLC for setup costs? IRS tagged it as a reportable transaction. Skip Form 5472 and face a $25,000 penalty... zero revenue required.
The trap: your LLC gets 'disregarded entity' status for income tax while simultaneously getting corporation treatment for reporting. Two separate systems running in parallel. Formation services focus on state registration. The federal Form 5472 requirement catches foreign founders off guard because they assume no US income means no filing. Fatal mistake.
IRS rarely accepts 'I didn't know' as reasonable cause for penalty relief. Miss the deadline? Add $25k every 30 days with no cap. Dormant LLCs with zero activity rack up six figures in penalties fast.
What transaction did you make with your US LLC that might have already triggered this filing requirement?