I prepared 1065 K-1's. One had the wrong SS#. Must I refile the whole 1065 for the SS# on one K-1?

[Critter-3]

There is no such rule ... all 2021 income and expenses need to be reported on the 2021 return. Seek local professional assistance in bookkeeping and/or tax prep if you need more assistance. 

[Mike9241]

if you're changing any item on schedule k, you're changing the k-1s.   what the IRS would regard as "minor" and what they would do is unknown.  hopefully, you indicated on the K-1s that the numbers were tentative. this would allow the partners to decide for themselves as to whether to file with the preliminary numbers or extend until they get the final k-1. yes, the partners should get a copy, it's required, of the final k-1. some may have extended so they need it. the others will have to decide for themselves whether or not to amend. 

[sadimoradi]

Thanks for the color. Allow me to update my research. The partners can file a form 8082 notice of inconsistent treatment. Now, I'm wondering if the partnership can/is required to file a similar notice with its 1065 alerting the IRS of a minor discrepancy.