Famous Sole Proprietor 401K 2023. Overall solo 401(k) contribution limit for 2020 the overall 2020 solo 401(k) max. The individual 401k is a 401k plan that is available to sole proprietorships.

Web 401 (k) plan. Web use our helpful contribution calculator to determine your solo 401k contribution for your sole proprietorship. Ad our free guide gives you everything you need to know about 401k rollovers.