sep vs keogh plan - contributions after age 70.5

[Guest kprhok]

It is my understanding that a sole proprietor can continue making contributions to a SEP arrangement after age 70.5 even though minimum distributions are required.

I am unable to find anything regarding contributions to Keogh (PS) plans after age 70.5. Can the owner of a solo practice continue making Keogh contributions after he reaches 70.5, until he retires, say, at age 75?

My best guess is No, but I can't back that up with any authority/citations.

I thought I would start with this discussion group since many who post here are involved with small company plans such as seps, simples, etc.

Thanks!

[Belgarath]

Age 75, 83, whatever - age is immaterial. He can contribute to a PS plan at any age.

[Guest mjb]

but he has to take MRDs under 401(a)(9) each yr under either plan.