Retirement planning looks different when the owner is also the employer. Self-employed workers and small-business owners have several ways to save, but they have to choose a plan and make room for it in the business budget.

The choice is worth making before the business is ready to contribute. Knowing what a plan will require helps an owner decide how much to set aside and when to start.

Compare Plan Options

The U.S. Internal Revenue Service describes several options, including Simplified Employee Pension (SEP) plans, Savings Incentive Match Plans for Employees that use individual retirement accounts (SIMPLE IRAs), and qualified plans such as 401(k)s. Each has different contribution rules and operating requirements.

A SEP is funded by the employer, and contributions are not required every year. A SIMPLE IRA lets employees contribute from their pay and generally requires the employer to match those contributions or contribute on behalf of eligible employees regardless of whether they contribute.

A solo 401(k) lets a business owner with no employees other than a spouse contribute in both roles, as employer and employee. When comparing it with a SEP, look at whether being able to contribute in both roles is worth the additional administration.

Budget for Contributions

Cash flow matters because retirement saving competes with everything else a business needs. Taxes, payroll, reserves, debt payments, and investment in growth all draw on the same cash. A contribution that looks affordable after a strong sales month may be harder to make when bills fall due before customers pay.

According to Brennan Decima, founder and managing director of Decima Wealth Consulting, in an interview with Kiplinger, workers moving into self-employment can pause retirement contributions while income is unsettled, provided they plan to resume saving once earnings stabilize. That can give a new owner time to build a cash reserve.

Separate the amount the owner wants to save from what the business can afford to contribute. Use a quieter month to test the budget, not just the strongest month of the year. If the numbers leave too little for upcoming bills, check whether the plan allows the contribution to be reduced.

Consider Employee Costs

Once a business has employees, the owner is no longer choosing only for themselves. Eligibility rules determine who must be covered, and the employer’s contributions can affect the payroll budget. For a SEP, for example, an owner who contributes generally must also contribute for eligible employees.

A common mistake is choosing a structure for the owner alone and only later checking what happens when staff join. If hiring is already in the budget, estimate the plan cost using the expected payroll. Check who would qualify and whether the plan would require additional notices or filings.

Check Tax Treatment

Retirement contributions may reduce current taxable income, depending on the plan and the type of contribution. In a traditional retirement account, investment earnings generally are not taxed until the money is withdrawn. Compare the tax treatment of contributions with the treatment of withdrawals rather than looking only at the deduction.

For owners contributing to their own plans, the amount they can deduct may not be obvious from the business’s profit alone. The IRS uses a separate calculation for deductible contributions by self-employed owners. Check the applicable calculation before treating the full amount set aside as a deduction.

Review Contribution Timing

Owners with seasonal or uneven income can schedule contribution reviews around tax payments and the months when they expect to rebuild cash reserves. A review date is not necessarily a payment date: it is a chance to see how much the business can set aside before the plan’s deadline.

Check the deadline for setting up the plan separately from the deadline for funding it. Some deadlines are tied to the tax year or the filing due date, but they vary by plan and contribution type. Waiting until tax preparation to check both dates can narrow the options.

Before opening a plan, bring a recent profit-and-loss statement and, if applicable, a payroll estimate to a tax adviser or plan administrator. Ask them to confirm which options the business qualifies for and what it would have to contribute in the first year.