Participants in a Solo 401k have the option to make Roth 401k contributions only with the salary deferral portion of the Solo 401k. In 2015 the Roth 401k salary deferral contribution limit is $18,000 and $24,000 if age 50 or older (2014 salary deferral limit is $17,500 and $23,000 if age 50 or older).he profit sharing portion of the Solo 401k contribution is not eligible to be made as a Roth contribution. Profit sharing contributions are made pre-tax and are tax deductible. Note: The combined 2015 salary deferral and profit sharing contributions in a Solo 401k cannot exceed $53,000 or $59,000 if age 50 or older.
1 Revenue from the sale of goods or provision of services should be recorded when ultimate collection is reasonably assured.  GAAP currently provides additional guidance allowing contractors to use either the completed contract or the percentage of completion method of revenue recognition, depending on their situation.
Then the completed-contract method of accounting is the preferred method of accounting for long-term contracts. When the percentage-of-completion is the method of accounting, the accounting principle of full disclosure requires the presentation of a work-in-process schedule in a company's financial statements.