A good article detailing 2018 contribution limits for different retirement account options for all parties saving for their future. Thankfully, our retirement account options permit a pretty penny to be saved if one’s income allows. For example:

IRA (below age 50) - $5,500

IRA (age 50+) - $6,500

401k (below age 50) - $18,500 + employer match

401k (age 50+) - $24,500 + employer match

Solo 401k (below age 50) - up to $55,000

Solo 401k (age 50+) - up to $61,000

HSA (below age 55) - $3,450 (single); $6,850 (family); add $1K for those 55+

As such, if funds are available, a person below the age of 50 can save $24,000 rather easily (IRA $5,500 plus 401k $18,500). However, that $24K can increase once you add in employer matches, as well as, HSA contributions, if permitted.