You have spent the year keeping promises: payroll cleared, clients were served, and the business kept moving. Now you would like some of that progress to support your own future. You deserve to put retirement on the calendar, not leave it for whatever is left.
The catch is that retirement plan deadlines do not all arrive with your tax return. Through my proprietary LIFT – Legal, Insurance, Financial & Tax framework, I help you connect that savings decision to your business obligations and the professionals who must carry it out.
Preparing your tax return and planning a retirement contribution are different services, even when your CPA provides both. The question now is which decisions are still available for this year, and when each one needs to happen.
Retirement Plan Deadlines Are Three Different Conversations
“Can I still contribute for this year?” sounds like one question. In practice, you need to separate setting up the plan, electing contributions from pay, and putting the money into the account. A later funding deadline does not automatically extend the other two. For a calendar-year business considering 2026 payroll deferrals, start now rather than wait for December 31.
For salary deferrals, the money an employee elects to contribute rather than receive as pay, the general rule requires the election before that compensation becomes available. An S corporation owner generally cannot wait until March and relabel wages already received as last year’s 401(k) deferrals.
But “every new 401(k) must be established by December 31” is too broad. A qualifying plan may be adopted after year-end for employer contributions. Separately, a special first-year rule allows a sole proprietor (including a single-member LLC taxed as one) with no employees, who is the plan’s only participant, to adopt a new 401(k) and make prior-year deferrals by the unextended tax-filing deadline. Do not assume that exception applies to an incorporated business or an existing plan.
A SEP plan has a different timetable: it can generally be established by the business’s tax-return deadline, including extensions. Your provider may also set earlier processing cutoffs.
Ask your CPA and plan administrator to identify your entity, existing plan, contribution type, and actual dates. “You have until tax time” is not detailed enough to act on.
The bottom line: Get separate deadlines for adoption, elections, and deposits before assuming a retirement contribution can wait.
The Published Maximum Is Not Your Personal Contribution Amount
Seeing a large limit can feel encouraging, especially after a year when you finally have money to save. But a limit tells you the ceiling, not what your compensation, plan, and workforce allow.
For standard 401(k) plans, the 2026 federal limits include:
- $24,500 in employee elective deferrals.
- An additional $8,000 catch-up for eligible participants age 50 or older.
- A higher $11,250 catch-up instead of $8,000 for eligible participants turning 60, 61, 62, or 63 during the year.
- A $72,000 combined annual contribution limit, excluding permitted catch-ups, also subject to compensation limits.
The $72,000 is not an additional amount on top of the $24,500. If you qualify, your employee and employer contributions count toward the combined limit. Contributions to another employer’s plan can also affect how much elective-deferral room you have left.
Ask for a calculation using your actual compensation and contributions already made. A headline about a solo 401(k) is not a substitute for checking whether your business qualifies for an owner-only arrangement.
There is another 2026 detail: certain higher-paid participants must make catch-up contributions on a Roth basis. The rule uses prior-year wages from the sponsoring employer above $150,000, not simply household income. Roth contributions do not provide the current income-tax reduction that pretax contributions do.
The bottom line: Have your available contribution calculated before treating a published limit as either a savings target or a tax deduction.
Your Employees Belong in the Calculation Too
Imagine choosing a retirement plan based on what you want to contribute for yourself, then learning that funding your team changes the cost. That is not a reason to avoid offering a benefit. It is a reason to understand the whole commitment first.
A one-participant 401(k) is intended for an owner with no employees, or the owner and spouse. Hiring eligible employees changes the requirements. Do not assume calling a plan “solo” lets you leave eligible people out.
A SEP also deserves a workforce calculation. Employer contributions generally use the same percentage of compensation for eligible participants. In a simplified example, a 10% contribution for two eligible employees earning $60,000 each means $6,000 for each, or $12,000 altogether, before considering your own contribution. Your administrator must check eligibility and the applicable compensation rules.
If you are comparing a 401(k), SEP, or pension arrangement, request a written estimate of:
- Contributions for you and eligible employees.
- Setup, administration, and investment-related fees.
- Ongoing funding obligations and annual reporting.
- What happens if revenue drops or you hire more people.
A cash balance pension, for example, is not merely an account with a bigger limit. Its promised benefits and funding require specialized calculations. Evaluate it with a qualified plan professional rather than borrow someone else’s contribution figure.
The bottom line: Choose a retirement benefit that works for the business and the people it employs, not just the owner’s tax projection.
A Tax Benefit Is Only One Part of the Return
Money saved for retirement still belongs in your financial picture, but it is no longer ordinary operating cash. A contribution that leaves you unable to cover payroll is not made affordable by calling it deductible.
Consider a deliberately simplified illustration: a fully deductible $20,000 contribution at a 24% marginal federal income-tax rate produces a $4,800 reduction, ignoring other tax effects. You still need to fund the full $20,000. The tax benefit does not arrive in the retirement account to make up the difference.
Your actual result can be less straightforward. A retirement deduction can lower taxable income and change eligibility for other deductions. It can also reduce the business income used to calculate the qualified business income deduction. That is why multiplying a large contribution by your top tax rate is not a complete projection.
Ask your CPA to compare the full return with and without the proposed contribution, including your spouse’s income if you file jointly. Ask which contributions are pretax, which are Roth, and how much cash remains for your business and household afterward.
The purpose is not to manufacture the largest deduction. It is to move an amount you can afford toward the future you want, with the tax treatment understood.
The bottom line: Compare the complete tax result and the cash commitment before deciding how much to contribute.
Put All Four Systems Behind the Decision
A retirement recommendation becomes useful when your advisors can implement it together. I help you identify the legal and practical decisions that belong beside the tax calculation, so you are not carrying every handoff yourself.
Legal
Confirm who can adopt the plan, who is responsible for administering it, and which employee eligibility and notice rules apply. A provider’s account-opening form does not answer every employer obligation. Get the responsibilities clear before the first contribution.
Insurance
Ask your insurance professional whether the new plan creates bonding requirements or a need for fiduciary liability coverage, which concerns responsibility for managing a benefit plan. Do not assume your general business policy covers that work. The answer depends on the plan and who handles its assets.
Financial
Decide what the business can fund without relying on a hoped-for receivable. Include employee contributions, fees, payroll, reserves, and your household needs. Your retirement savings should strengthen your future without putting next month’s obligations in doubt.
Tax
Have your CPA and administrator confirm contribution limits, deduction treatment, and deadlines together. Put one person’s name beside each action, including payroll changes and deposit instructions. Ask for confirmation when the action is completed, not just when an email is sent.
This protects your TEAM: Time, Energy, Attention, and Money. You spend less of each repeating the same explanation to separate professionals, and more making an informed decision.
The bottom line: A retirement strategy needs coordinated legal, insurance, financial, and tax follow-through, not just a favorable estimate.
LIFT Business Breakthrough Session: What You Can Do Right Now
Send your CPA and retirement-plan provider one question this week: “For my business, what must happen before year-end, and what can happen after?” Request dates for setup, elections, and funding, plus a contribution estimate that includes eligible employees and fees.
As a Personal Family Lawyer Firm and LIFTed Business Advisor, I help you connect those answers to the business and life you are building. I do not replace your CPA or plan administrator, and I do not offer one-size-fits-all planning. I help you protect your TEAM by turning the advice into coordinated next steps.