• Types of plans
• Profit-sharing plans
• 401(k) plans
• Money purchase pension plans
• Defined benefit plans
• SIMPLE IRA retirement plans
• Other plans
• Finding a plan that's right for you

As a business owner, you should carefully consider the advantages of establishing an employer-sponsored retirement plan. Generally, you're allowed a deduction for contributions you make to an employer-sponsored retirement plan. In return, however, you're required to include certain employees in the plan, and to give a portion of the contributions you make to those participating employees. Nevertheless, a retirement plan can provide you with a tax-advantaged method to save funds for your own retirement, while providing your employees with a powerful and appreciated benefit.

There are several types of retirement plans to choose from, and each type of plan has advantages and disadvantages. This discussion covers the most popular plans. You should also know that the law permits you to have more than one retirement plan, and with sophisticated planning, a combination of plans might best suit your business's needs.

Profit-sharing plans are among the most popular employer-sponsored retirement plans. These straightforward plans allow you, as an employer, to make a contribution that is spread among the plan participants. You are not required to make an annual contribution in any given year. However, contributions must be made on a regular basis.

With a profit-sharing plan, a separate account is established for each plan participant, and contributions are allocated to each participant based on the plan's formula (this formula can be amended from time to time). As with all retirement plans, the contributions must be prudently invested. Each participant's account must also be credited with his or her share of investment income (or loss).

For 2004, no individual is allowed to receive contributions for his or her account that exceed the lesser of 100 percent of his or her earnings for that year or $41,000. Your total deductible contributions to a profit-sharing plan may not exceed 25 percent of the total compensation of all the plan participants in that year. So, if there were four plan participants each earning $50,000, your total deductible contribution to the plan could not exceed $50,000 ($50,000 x 4 = $200,000; $200,000 x 25% = $50,000).

A type of deferred compensation plan, and now the most popular type of plan by far, the 401(k) plan allows contributions to be funded by the participants themselves, rather than by the employer. Employees elect to forgo a portion of their salary and have it put in the plan instead.

The requirements for 401(k) plans are complicated, and several tests must be met for the plan to remain in force. For example, the higher paid employees' deferral percentage cannot be disproportionate to the rank-and-file's percentage of compensation deferred.

These plans can be extremely expensive to administer, but the employer's contribution cost is generally very small (employers often offer to match employee deferrals as an incentive for employees to participate). Thus, in the long run, 401(k) plans tend to be relatively inexpensive for the employer.

Note: 401(k) plans are frequently confused with profit-sharing plans.

Money purchase pension plans are similar to profit-sharing plans, but employers are required to make an annual contribution. Participants receive their respective share according to the plan document's formula.

Although individuals are still capped at 100 percent of earnings or a $41,000 maximum annual contribution, the employer is allowed to make deductible contributions up to 25 percent of the total compensation of all plan participants. (To go back to the previous example, the total deductible contribution would again be $50,000: ($50,000 x 4) x 25% = $50,000.)

Like profit-sharing plans, money purchase pension plans are relatively straightforward and inexpensive to maintain. However, they are less popular than profit-sharing or 401(k) plans because of the annual contribution requirement.

By far the most sophisticated type of retirement plan, a defined benefit program sets out a formula that defines how much each participant will receive annually after retirement if he or she works until retirement age. This is generally stated as a percentage of pay, and can be as much as 100 percent of final average pay at retirement.

An actuary certifies how much will be required each year to fund the projected retirement payments for all employees. The employer then must make the contribution based on the actuarial determination. In 2004, the maximum annual retirement benefit an individual may receive is $165,000 or 100 percent of final average pay at retirement.

Unlike defined contribution plans, there is no limit on the contribution. The employer's total contribution is based on the projected benefits. Therefore, defined benefit plans potentially offer the largest contribution deduction and the highest retirement benefits to business owners.

Actually a sophisticated type of individual retirement account (IRA), the SIMPLE (Savings Incentive Match Plan for Employees) IRA plan allows employees to defer up to $9,000 (for 2004) of annual compensation by contributing it to an IRA. In addition, employees age 50 and over may make an extra "catch-up" contribution of $1,500 for 2004. Employers are required to match deferrals, up to 3 percent of the contributing employee's wages (or make a fixed contribution of 2 percent to the accounts of all participating employees whether or not they defer to the SIMPLE plan).

SIMPLE plans work much like 401(k) plans, but do not have all the testing requirements. So, they're cheaper to maintain. There are several drawbacks, however. First, all contributions are immediately vested, meaning any money contributed by the employer immediately belongs to the employee (employer contributions are usually "earned" over a period of years in other retirement plans). Second, the amount of contributions the highly paid employees (usually the owners) can receive is severely limited compared to other plans. Finally, the employer cannot maintain any other retirement plans. SIMPLE plans cannot be utilized by employers with more than 100 employees.

The above sections are not exhaustive, but represent the most popular plans in use today. Recent tax law changes have given retirement plan professionals new and creative ways to write plan formulas and combine different types of plans, in order to maximize contributions and benefits for higher paid employees.

If you are considering a retirement plan for your business, ask a plan professional to help you determine what works best for you and your business needs. The rules regarding employer-sponsored retirement plans are very complex and easy to misinterpret. In addition, even after you've decided on a specific type of plan, you will often have a number of options in terms of how the plan is designed and operated. These options can have a significant and direct impact on the number of employees that have to be covered, the amount of contributions that have to be made, and the way those contributions are allocated (for example, the amount that is allocated to you, as an owner).