It is never too late to invest in mutual funds for retirement. As such, if you plan to invest in some of the best funds, the Zacks Mutual Fund Rank can provide you with valuable guidance.

How can you tell a good mutual fund from a bad one? It's pretty basic: if the fund is diversified, has low fees, and shows strong performance, it's a keeper. Of course, there's a wide range, but using the Zacks Mutual Fund Rank, we've found three mutual funds that would be great additions to any long-term investors' portfolios.

Here are the funds that have achieved the Zacks Mutual Fund Rank #1 (Strong Buy) and have low fees.

Timothy Plan Israel Common Values I (TICIX): 1.46% expense ratio and 1% management fee. TICIX is a part of the Non US - Equity fund category, many of which will focus across all cap levels, and will typically allocate their investments between emerging and developed markets. With annual returns of 15.48% over the last five years, this fund is a winner.

JPMorgan US GARP Equity R2 (JIGZX) is a stand out amongst its peers. JIGZX is a Large Cap Growth mutual fund, and these funds invest in many large U.S. firms that are projected to grow at a faster rate than their large-cap peers. With five-year annualized performance of 12.81%, expense ratio of 1.09% and management fee of 0.3%, this diversified fund is an attractive buy with a strong history of performance.

Janus Henderson Global Technology I (JATIX Quick QuoteJATIX - Free Report) . Expense ratio: 0.78%. Management fee: 0.64%. Five year annual return: 11.49%. JATIX is a Sector - Tech mutual fund, allowing investors to own a stake in a notoriously volatile sector with a much more diversified approach.

There you have it. If your financial advisor had you put your money into any of our top-ranked funds, then they've got you covered. If not, you may need to talk.