Turning the big 5-0 can be a wake-up call. One minute you’re cruising along in your 40s, the next minute you’re receiving membership invitations from senior citizen organizations. From a retirement prep standpoint, the IRS also has an invitation. To catch up on retirement savings goals, employees aged 50 can contribute an additional $6,000 — for a total of $24,000 — to their 401(k), 403(b), most 457 plans, and the federal government’s Thrift Savings Plan in 2018. People 50 and older can also kick in an additional $1,000 — for a total of $6,500 — to their IRA or Roth IRA. Before you increase your contributions, check with your employer’s human resource department, financial advisor and tax advisor. There might be some restrictions based on a retirement plan you may have at work, the type of plan it is, and your total income that could limit how much (or how tax-deductible) those contributions can be.