Dear Liz: My company doesn’t allow us to contribute more than 50% of our paycheck to our 401(k). This limits my contribution to far less than the IRS’ $18,000 annual limit because I’m low paid.

How can I tackle this situation, as I would want to contribute more but am being constrained by the 50% contribution cap?

Answer: Your zeal to save for retirement is admirable. Your company may not have anticipated that anyone in your situation would be able to save so much, so consider simply asking if the limit can be raised.

You can explore other avenues as well, such as contributing to an IRA or a Roth IRA. Many people incorrectly believe they can’t contribute to these individual retirement accounts if they have a workplace plan, but that’s not true.

You can contribute up to $5,500 to a Roth (plus a $1,000 catch-up contribution if you’re 50 or older) if your income is below certain limits. The ability to contribute is reduced between modified adjusted gross incomes of $116,000 and $131,000 for single filers and $183,000 and $193,000 for marrieds filing jointly. Alternatively, you can contribute $5,500 (plus the $1,000 catch-up contribution) to an IRA regardless of your income, although your ability to deduct your contribution if you have a workplace plan is phased out for incomes between $61,000 and $71,000 if single and $98,000 to $118,000 for marrieds.