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SDLA Compliance Resource

File Charter Nonprofit Annual Returns (IRS 990, FTB 199, and Registry Filings)

An implementation guide for nonprofit public benefit corporations operating charter schools to file the IRS Form 990, California Form 199, and any Attorney General Registry renewal for the June 30 fiscal year.

  • Fiscal & Budget
  • Governance & Board Approval
  • Charter Schools
Date(s)November 16, 2026 for a June 30, 2026 year end (the 15th day of the fifth month falls on a Sunday); extensions available
Applies toCharter schools operated by nonprofit public benefit corporations

In Plain Language: A charter school run by a nonprofit corporation must file the corporation's annual returns: IRS Form 990, California Form 199 (or the 199N e-Postcard for small organizations), and the Attorney General's Registry of Charities renewal unless an exemption applies. For a June 30 year end, these are due in mid-November. Many authorizers also require a copy.

Why this matters

Late or missing returns can bring penalties, suspension of the corporation's status, or loss of tax exemption, and authorizers treat them as indicators of governance health.

Joint ownership

Charter: chief business officer, back-office provider, and tax preparer; the board reviews the 990 before filing. Authorizer: may collect copies.

From the audited year to filed nonprofit returns: the SDLA ITO workflow

This workflow coordinates the audit, the tax preparer, and the board for the charter corporation's annual filings. This SDLA ITO (Input, Transformation, Output) graphic shows how the inputs become the outputs in 9 steps.

SDLA ITO: 9 steps. Input: audited financial statements; governance information; prior-year returns. Transformation: prepare the returns; board review; decide on extensions. Output: filed Form 990; filed Form 199 and Registry renewal; copies to the authorizer.
Read down each column, then move to the next: Input identifies what to collect; Transformation covers prepare the returns; board review; decide on extensions; Output delivers filed Form 990; filed Form 199 and Registry renewal; copies to the authorizer. Due November 16, 2026 unless extended.

Open the full-size workflow graphic

Implementation workflow

  1. August–SeptemberGather information.Collect governance and financial data for the preparer.
  2. OctoberPrepare and review.Draft returns; schedule the board review.
  3. Early NovemberBoard review.Board reviews the 990 at a public meeting.
  4. By November 16File or extend.File the returns or extensions and save confirmations.
  5. After filingShare.Send copies to the authorizer if required.

Charter nonprofit filing checklist

  • Fiscal year end and due dates confirmed.
  • Board review documented before filing.
  • Registry renewal filed or exemption confirmed.
  • Extensions filed if needed.
  • Authorizer copies provided.

Official guidance and help

Source review completed October 25, 2026. Verify your corporation's fiscal year, any exemption from the Registry, and extension status with your tax preparer.