A partner was forced out of a partnership (formed in 2018) two weeks before the end of 2018 and replaced with another partner. Then the partnership never filed the 1065. How does the partner that was forced out report her loss from the business activities since she funded the startup of the business?
can't say. normally income/loss should have been allocated on a per share per day basis or specific accounting. However, the partnership agreement if there was one, could provide for a different allocation. you should have gotten a k-1. in addition a 1065 should have been filed. failure to file penalties are around $200 per partner for each month late. about $2,000 or more by now if no extension filed. in addition how can partners report their share of profit or loss if no return was prepared or filed. if significant, partners could face heavy tax penalties for improper reporting
there is also the possibility that if a 50% partner was forced out there was a technical termination of the old partnership and a new partnership came into existence when the new partner came in.
the best advice, the partners need to consult with a tax pro to get the returns filed. if they won't participate, you may need to consult with an attorney.