In This Article
- How Does a SEP-IRA Work for NJ Small Business Owners?
- How Does a Solo 401(k) Work and When Is It Better Than a SEP-IRA?
- How Does a SIMPLE IRA Work for Businesses With Employees?
- What Are the NJ State Tax Benefits of Retirement Plan Contributions?
- Key Takeaway
- Ready to File With Confidence?
Contributing to a retirement plan is one of the most effective tax reduction strategies available to NJ small business owners because it reduces both federal and NJ taxable income simultaneously. A SEP-IRA allows contributions up to 25% of net self-employment income (max $69,000 for 2024, $70,000 for 2025). A Solo 401(k) offers even higher limits through combined employee deferrals and employer contributions. Choosing the right plan structure and maximizing contributions each year is critical for NJ business owners.
Contributing to a retirement plan is one of the most effective tax reduction strategies available to NJ small business owners.
How Does a SEP-IRA Work for NJ Small Business Owners?
Contributions up to 25% of net self-employment income, max $70,000 for 2025 ($72,000 for 2026). Easy to set up, no annual filing. Deadline extends to tax return due date. Main drawback: must contribute same percentage for employees.
How Does a Solo 401(k) Work and When Is It Better Than a SEP-IRA?
Both employee deferrals ($23,500 for 2025, $24,500 for 2026) and employer contributions (up to 25%). Combined max $70,000 for 2025 ($72,000 for 2026), plus $7,500 catch-up if 50+ ($8,000 for 2026) or $11,250 for ages 60-63 under SECURE 2.0. Employee deferral deadline is December 31.
How Does a SIMPLE IRA Work for Businesses With Employees?
For businesses with up to 100 employees. Employee contributions up to $16,500 for 2025. Employer match up to 3% or 2% non-elective. Setup deadline is October 1.
What Are the NJ State Tax Benefits of Retirement Plan Contributions?
Contributions reduce both federal and NJ taxable income. At NJ's top rate of 10.75%, state savings alone can be significant.
Key Takeaway
Retirement plan contributions produce a dollar-for-dollar reduction in taxable income at both the federal and NJ level. At NJ's top rate of 10.75% combined with a 35% federal rate, every $10,000 contributed saves roughly $4,575 in taxes. The key is choosing the right plan for your business structure, employee situation, and contribution goals.
Related reading: Year-End Tax Moves for NJ Business Owners | S-Corp Salary vs. Distributions | Top 5 Overlooked Deductions | Tax planning services
## Frequently Asked Questions
What is the maximum SEP-IRA contribution for self-employed?
Self-employed individuals can contribute up to 25% of net self-employment income to a SEP-IRA, with a maximum of $70,000 for 2025. The actual calculation uses adjusted net self-employment income (after the self-employment tax deduction), so the effective rate is approximately 20% of net Schedule C income. Contributions are due by the tax return filing deadline, including extensions.
What is the advantage of a Solo 401(k) over a SEP-IRA?
A Solo 401(k) allows both employee deferrals ($23,500 for 2025) and employer contributions (up to 25% of compensation), potentially enabling higher total contributions. It also permits catch-up contributions of $7,500 for those age 50 and older. Unlike a SEP-IRA, the employee deferral portion must be elected by December 31 of the tax year.
Do retirement plan contributions reduce NJ state taxes?
Yes. Contributions to qualified employer-sponsored retirement plans like SEP-IRAs, Solo 401(k)s, and SIMPLE IRAs reduce both federal and NJ taxable income. At NJ's top rate of 10.75%, a $50,000 contribution could save up to $5,375 in NJ taxes alone, on top of federal savings.
Can I set up a retirement plan after year-end?
It depends on the plan type. A SEP-IRA can be established and funded up to the tax return due date, including extensions. A Solo 401(k) must be established by December 31 of the tax year, though employer contributions can be made until the filing deadline. A SIMPLE IRA must be established by October 1 of the year for which contributions are being made.
Ready to File With Confidence?
Tax rules change frequently. If anything in this guide applies to your situation, a quick review with a CPA can prevent costly mistakes. Greg Monaco is a NJ-licensed CPA (License #20CC04711400) who prepares every return personally.
