Returns shall be filed by every partnership engaging in any trade or business or receiving income from sources within the District.
If a partnership is not required to file an unincorporated business return under certain conditions, it is not relieved from filing a partnership return as required by Title 5 of the Act; except that a partnership return, as such, shall not be required to be filed if the taxpayer files an unincorporated business tax return.
D.C. Mun. Regs. tit. 9, r. 9-108