Employer Contribution Deadlines
The following are the deadlines to deposit employer contributions for a calendar year plan:
401(k), Profit Sharing, and 403(b) Plans
Tax Status: C-Corporation (or LLC taxed as C-Corp)
Deductability Deadline: April 15th
Deductability Extended Deadline: October 15th
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Tax Status: S-Corporation (or LLC taxed as S-Corp)
Deductability Deadline: March 15th
Deductability Extended Deadline: September 15th
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Tax Status: Partnership (or LLC taxed as a part)
Deductability Deadline: March 15th
Deductability Extended Deadline: September 15th
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Tax Status: Sole Proprietorship (or LLC taxed as sole prop)
Deductability Deadline: April 15th
Deductability Extended Deadline: October 15th
The Annual Additions deadline is 30 days later.
Cash Balance / Defined Benefit Plans
Tax Status: C-Corporation (or LLC taxed as C-Corp)
Deductability Deadline: April 15th
Deductability Extended Deadline: September 15th
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Tax Status: S-Corporation (or LLC taxed as S-Corp)
Deductability Deadline: March 15th
Deductability Extended Deadline: September 15th
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Tax Status: Partnership (or LLC taxed as a part)
Deductability Deadline: March 15th
Deductability Extended Deadline: September 15th
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Tax Status: Sole Proprietorship (or LLC taxed as sole prop)
Deductability Deadline: April 15th
Deductability Extended Deadline: September 15th