401(k) glossary

·

Administration

Summary plan description (SPD)

Short definition

A summary plan description (SPD) is the plain-language document that explains a retirement plan’s rules to participants. ERISA requires the plan administrator to give it to each new participant within 90 days.

What an SPD is

The SPD tells employees, in language they can understand, how the plan works. Department of Labor rules list what it must contain, including:

  • The plan’s name, sponsor, plan administrator and trustee.

  • Eligibility rules and when participation starts.

  • How contributions and vesting work.

  • When and how benefits are paid, and what could cause a loss of benefits.

  • The claims and appeals procedure.

  • A statement of participants’ rights under ERISA.

Timing

  • New participants: within 90 days after they become covered.

  • New plans: within 120 days after the plan becomes subject to ERISA.

  • Changes: a summary of material modifications is due within 210 days after the end of the plan year in which the change was adopted.

  • Updates: a fully updated SPD every five years if the plan was amended, and every ten years if it was not.

Why it matters to employers

The SPD is the document employees and courts rely on. If it is missing, out of date or inconsistent with the plan document, the plan administrator is exposed in a dispute. A participant who asks in writing for the SPD must receive it within 30 days, and a court can impose a daily penalty on an administrator who does not respond.

Electronic delivery is allowed if you follow the Department of Labor’s electronic disclosure rules.

Common mistakes

  • Never giving the SPD to new hires because it “lives on the portal” without a proper notice.

  • Amending the plan and not issuing a summary of material modifications.

  • Using an SPD from a previous provider after changing plans.

  • Assuming the provider delivers it. Confirm who sends it and keep proof.

  • Letting the SPD and plan document say different things about eligibility or vesting.

Sources

eCFR (National Archives): 29 CFR 2520.102-3: Contents of summary plan description (https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XXV/subchapter-C/part-2520/subpart-B/section-2520.102-3), retrieved 2026-11-11 U.S. Department of Labor, EBSA: Reporting and disclosure guide for employee benefit plans (https://www.dol.gov/sites/dolgov/files/EBSA/about-ebsa/our-activities/resource-center/publications/reporting-and-disclosure-guide-for-employee-benefit-plans.pdf), retrieved 2026-11-11 U.S. Code (govinfo.gov): 29 U.S.C. 1021 (ERISA section 101): Duty of disclosure and reporting (https://www.govinfo.gov/content/pkg/USCODE-2023-title29/html/USCODE-2023-title29-chap18-subchapI-subtitleB-part1-sec1021.htm), retrieved 2026-11-11

General information, not legal or tax advice.

© 2026 Basic Capital. All rights reserved.

Basic Capital Group, Inc. and its affiliates and subsidiaries (collectively, "Basic Capital") provide this website and its contents for informational and educational purposes only. The information on this website is general in nature and is not intended to address the circumstances of any particular individual or entity.  Nothing on this website constitutes investment, financial, legal, tax, or accounting advice, nor should it be construed as a recommendation or endorsement of any specific investment product, strategy, or service. Basic Capital does not provide legal, tax, or accounting advice. You should consult with your own qualified financial, legal, and tax advisors before making any investment decisions. Our site uses a third party service to match browser cookies to your contact information. We then use another company to send special offers on our behalf.

Recordkeeping Services

Recordkeeping services are provided through Basic Capital Recordkeeping Services LLC, a wholly owned subsidiary of Basic Capital Group, Inc. Unless expressly agreed to in writing, Basic Capital Recordkeeping Services LLC does not act as a fiduciary under the Employee Retirement Income Security Act of 1974, as amended, with respect to any employee benefit plan.

Investment Advisory Services

Investment advisory services are provided through Basic Capital Advisors LLC, a wholly owned subsidiary of Basic Capital Group, Inc. registered with the State of New York as an investment adviser. Registration does not imply a certain level of skill or training. Investing involves risk, including the potential loss of principal. Past performance is not indicative of future results.
Investments in securities are: Not FDIC Insured • Not Bank Guaranteed • May Lose Value.
Neither Basic Capital Advisors LLC nor its affiliates are a registered broker-dealer or engage in securities brokerage activities. Furthermore, Basic Capital Advisors LLC and its affiliates do not act as a broker-dealer.

Basic Capital, 52 Walker Street, 5th Floor, New York, NY 10013 | 888-460-4901

© 2026 Basic Capital. All rights reserved.

Basic Capital Group, Inc. and its affiliates and subsidiaries (collectively, "Basic Capital") provide this website and its contents for informational and educational purposes only. The information on this website is general in nature and is not intended to address the circumstances of any particular individual or entity.  Nothing on this website constitutes investment, financial, legal, tax, or accounting advice, nor should it be construed as a recommendation or endorsement of any specific investment product, strategy, or service. Basic Capital does not provide legal, tax, or accounting advice. You should consult with your own qualified financial, legal, and tax advisors before making any investment decisions. Our site uses a third party service to match browser cookies to your contact information. We then use another company to send special offers on our behalf.

Recordkeeping Services

Recordkeeping services are provided through Basic Capital Recordkeeping Services LLC, a wholly owned subsidiary of Basic Capital Group, Inc. Unless expressly agreed to in writing, Basic Capital Recordkeeping Services LLC does not act as a fiduciary under the Employee Retirement Income Security Act of 1974, as amended, with respect to any employee benefit plan.

Investment Advisory Services

Investment advisory services are provided through Basic Capital Advisors LLC, a wholly owned subsidiary of Basic Capital Group, Inc. registered with the State of New York as an investment adviser. Registration does not imply a certain level of skill or training. Investing involves risk, including the potential loss of principal. Past performance is not indicative of future results.
Investments in securities are: Not FDIC Insured • Not Bank Guaranteed • May Lose Value.
Neither Basic Capital Advisors LLC nor its affiliates are a registered broker-dealer or engage in securities brokerage activities. Furthermore, Basic Capital Advisors LLC and its affiliates do not act as a broker-dealer.

Basic Capital, 52 Walker Street, 5th Floor, New York, NY 10013 | 888-460-4901

© 2026 Basic Capital. All rights reserved.

Basic Capital Group, Inc. and its affiliates and subsidiaries (collectively, "Basic Capital") provide this website and its contents for informational and educational purposes only. The information on this website is general in nature and is not intended to address the circumstances of any particular individual or entity.  Nothing on this website constitutes investment, financial, legal, tax, or accounting advice, nor should it be construed as a recommendation or endorsement of any specific investment product, strategy, or service. Basic Capital does not provide legal, tax, or accounting advice. You should consult with your own qualified financial, legal, and tax advisors before making any investment decisions. Our site uses a third party service to match browser cookies to your contact information. We then use another company to send special offers on our behalf.

Recordkeeping Services

Recordkeeping services are provided through Basic Capital Recordkeeping Services LLC, a wholly owned subsidiary of Basic Capital Group, Inc. Unless expressly agreed to in writing, Basic Capital Recordkeeping Services LLC does not act as a fiduciary under the Employee Retirement Income Security Act of 1974, as amended, with respect to any employee benefit plan.

Investment Advisory Services

Investment advisory services are provided through Basic Capital Advisors LLC, a wholly owned subsidiary of Basic Capital Group, Inc. registered with the State of New York as an investment adviser. Registration does not imply a certain level of skill or training. Investing involves risk, including the potential loss of principal. Past performance is not indicative of future results.
Investments in securities are: Not FDIC Insured • Not Bank Guaranteed • May Lose Value.
Neither Basic Capital Advisors LLC nor its affiliates are a registered broker-dealer or engage in securities brokerage activities. Furthermore, Basic Capital Advisors LLC and its affiliates do not act as a broker-dealer.

Basic Capital, 52 Walker Street, 5th Floor, New York, NY 10013 | 888-460-4901