Form 5558

Form 5558What is Form 5558?

Form 5558 is the form used to apply for an extension for the filing of the plan’s Form 5500 and all related schedules. The new, extended deadline becomes 9½ months after the plan year end.

When is Form 5558 due?

Form 5558 must be filed with the IRS by the last day of the seventh month following the plan year end.

Find the form and other helpful information on the IRS website:,-Application-for-Extension-of-Time-To-File-Certain-Employee-Plan-Returns

Pinnacle Plan Design is a third-party administrator (TPA) for employer-sponsored qualified retirement plans. We specialize in retirement plan design, administration and actuarial consulting for 401(k)/profit-sharing plans, defined benefit plans, cash balance plans, and 403(b) plans. Pinnacle Plan Design proudly serves businesses nationwide.


Pinnacle’s superior technical expertise combined with our unmatched client service makes us an industry leader in the retirement plan arena. Pinnacle delivers personalized high-impact results to hundreds of closely-held businesses across the nation. Our highly-credentialed professionals are committed to delivering outstanding client service, so that you are able to spend your time focusing on your core business, not on your retirement plan.

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