@lbessette13 wrote:
Was told that two people that stay in the same household can’t file using the same address cause it would get flagged and a penalty would be added to the filers account.
Generally, no. And in fact, the address on your tax return is where you want to get your tax-related mail (checks, other notices) and does not necessarily have to be the place you live.
However, I will never say never. The IRS doesn't care. But, I can imagine a scenario where (for example) the adult child has filed for government benefits (like Medicaid, welfare, or SSDI) because they claim to live alone and no one helps support them. By filing a tax return from the same house, it might clue in the state to the fact that they do receive support from family members, and their benefits claim might need to be investigated.
But 99% of the time, neither the IRS nor the state will care that several taxpayers share the same address.
