If you have a safe harbor 401(k) plan you have to do 2 things: (1) give notice to employees of their rights, and (2) make certain contributions to employees’ accounts. If you failed to give the required notice, you can fix it and avoid plan disqualification or severe penalties. Find information from the IRS.
Listen to my radio interviews with small business & entrepreneurship experts on Build Your Business Radio’s page where archived shows are available 24/7 for your listening convenience. Plus, each 3rd Tuesday of the month from 12pm to 1pm/ET you can live stream my interviews with expert guests.