As the end of the year approaches and investors begin to take stock of their savings, one consideration they may want to take into account is how they should allocate money across 401(k) and IRA plans. In a traditional, employer-sponsored 401(k) plan, employees can contribute tax-deferred money that is generally matched by a company up to a certain percentage. Traditional IRAs are accounts individuals set up independently, where earnings grow tax-free until they are withdrawn in retirement. For a Roth IRA, contributions are taxed first and then withdrawn tax-free, and a Rollover IRA allows individuals to transfer money over from employer-sponsored plans. Here are some tips to help you navigate the retirement planning process . Contribution levels The maximum amount an individual can contribute to a 401(k) plan is significantly higher than what is allowed for an IRA. Beginning next year, the Internal Revenue Service (IRS) will increase the contribution threshold for 401...