A retirement plan for business owners who do not employ any staff is referred to as a solo 401K. In order to be eligible for the Solo 401K plan, you must be the sole owner of the business, although there is a possibility that a spouse can also be included in the plan. It is also necessary that you must also not be expecting to employ any other staff in your business in the future.

How much contribution you can make to the plan a year?
You are allowed to contribute up to 40,000 US dollars (USD) a year to the Solo 401K plan. If you are aged 50 or over, then it is allowed that you can make a 2,000 USD catch-up contribution. No further contributions are permitted except for the 2,000 USD catch-up allowances, once you have reached your 40,000 USD yearly contributions.
Benefits to the Solo 401K retirement plan
You can have many benefits from the Solo 401K retirement plan. You might be eligible to take out a loan. If already you have 100,000 USD in the plan, then you are able to apply for a 50,000 USD loan.
