You filed a Fair Housing complaint with HUD. Now you're waiting. The question isn't whether they'll investigate but how long that takes and what happens while you wait.

The law gives HUD 100 days to complete the investigation. That's the regulatory standard under the Fair Housing Act. The clock starts when HUD receives your complaint and accepts it for investigation, not the day you submitted it online or sent it by mail.

What happens during those 100 days depends on the evidence, whether the other party responds, and whether HUD can broker a settlement before issuing a determination. Here's how the timeline breaks down.

The 100-Day Investigation Standard

HUD must complete its investigation within 100 days of receiving your complaint. That deadline comes from 42 U.S.C. § 3610(a)(1), which sets the framework for how Fair Housing complaints move through the system.

The 100 days cover the full investigation process: reviewing your complaint, contacting the respondent (the person or entity you're filing against), gathering evidence from both sides, interviewing witnesses if needed, and determining whether there's reasonable cause to believe discrimination occurred.

That timeline is real, but it's not absolute. HUD can extend it for good cause, which typically means the investigation is complex, the respondent hasn't cooperated, or settlement negotiations are underway. Extensions happen. They're common in cases involving multiple tenants, corporate landlords with slow legal departments, or disputes where the evidence requires expert analysis.

If you're tracking your case online through HUD's complaint status portal, the status will update as the investigation progresses. You won't see day-by-day activity, but you'll see when HUD contacts the respondent, when they receive a response, and when the investigation moves to the next phase.

What HUD Does During the Investigation

HUD assigns your complaint to an investigator, usually within a few days of accepting it. The investigator's job is to determine whether your complaint has merit: not to litigate it, but to assess whether there's enough evidence to support a reasonable cause finding.

The investigator will contact you first. You'll receive a letter or phone call asking for additional details: documentation of the discrimination, copies of lease agreements or denial letters, emails or text messages showing what happened, and witness names if anyone else saw or heard the conduct you're reporting.

HUD then contacts the respondent. The respondent gets a chance to submit their version of events, provide their own documentation, and explain why they believe no discrimination occurred. This isn't a trial, it's fact-gathering. The respondent's response doesn't stop the investigation, but it shapes what HUD investigates next.

If your complaint involves a request for a reasonable accommodation that was denied, HUD will look at whether you made the request in writing, whether the landlord acknowledged it, and whether the denial was documented. If it involves harassment, HUD will review the pattern of conduct, not just a single incident. If it involves refusal to rent based on disability, HUD will compare how the landlord treated you versus other applicants.

The investigator may request interviews. These are usually done by phone and don't require a lawyer, though you can bring one if you want. The questions focus on what happened, when it happened, who was involved, and what evidence exists to support your account.

Conciliation Comes Before Determination

Before HUD issues a reasonable cause determination, it attempts conciliation. This is a required step under the Fair Housing Act, and it happens in nearly every case where HUD finds evidence supporting your complaint.

Conciliation means settlement. HUD will contact both you and the respondent to see if you can resolve the complaint without a formal determination or litigation. This isn't mediation: HUD doesn't act as a neutral third party. The investigator will propose terms based on the evidence gathered during the investigation.

Common conciliation terms include:

• Monetary compensation for damages like missed rent, moving costs, or emotional distress
• Policy changes by the landlord to prevent future discrimination
• Training for property management staff on Fair Housing obligations
• A written agreement that the respondent will comply with the Fair Housing Act going forward

You don't have to accept conciliation. If the proposed terms don't address the harm, or if you want a formal determination instead, you can decline. HUD will continue the investigation and issue a determination.

If conciliation succeeds, the complaint closes. HUD issues a conciliation agreement, both parties sign it, and the case doesn't proceed to a reasonable cause determination. The agreement is legally binding, and if the respondent violates it, you can report the violation to HUD.

Conciliation attempts add time to the process. If HUD sends a conciliation proposal at day 80 and gives both parties 15 days to respond, the investigation extends beyond the 100-day window. That's normal. The law allows extensions for conciliation.

Reasonable Cause Determination or Dismissal

If conciliation fails or isn't appropriate, HUD issues a determination. There are two possible outcomes: reasonable cause or no reasonable cause.

A reasonable cause determination means HUD found evidence supporting your complaint. It doesn't mean you've won, it means the case moves to the next phase. HUD will refer the case to an administrative law judge for a hearing, or the case may be filed in federal court if either party elects that option. You don't pay for the hearing. HUD attorneys represent you if the case goes to an administrative hearing.

A no reasonable cause determination means HUD didn't find sufficient evidence to support your complaint. The investigation closes, but you still have the right to file your own lawsuit in federal court within one year of receiving the determination. HUD's finding doesn't bind the court, and you can present additional evidence there that wasn't available during the investigation.

Dismissals happen when the complaint doesn't meet jurisdictional requirements: for example, if it was filed more than one year after the alleged discrimination, if the respondent isn't covered by the Fair Housing Act, or if the conduct you're reporting doesn't qualify as discrimination under the law. Dismissals are procedural, not factual. They close the case without a determination on the merits.

If HUD dismisses your complaint, you'll receive a notice explaining why. Most dismissals cite lack of jurisdiction or failure to state a claim. If the dismissal is based on something you can fix, like missing documentation, you may be able to refile with the corrected information.

What You Can Control During the 100 Days

You can't speed up HUD's investigation, but you can make sure your case has what it needs to move forward.

Respond to every request from the investigator. If HUD asks for documentation, send it within the timeframe given. If they ask for witness names, provide them with contact information. Delays on your end add delays to the investigation.

Keep copies of everything you send to HUD. If the investigator requests a lease agreement, send a copy and keep the original. If you're forwarding emails showing discrimination, print them or save them as PDFs before sending. HUD doesn't always confirm receipt, and you may need those documents later.

Track your case status online. The HUD complaint portal updates when HUD takes action on your case. You don't need to call the investigator every week; the portal shows when HUD contacts the respondent, when they receive a response, and when the investigation moves to determination or conciliation.

Don't assume silence means nothing is happening. Investigators handle multiple cases, and they don't provide daily updates. If 60 days have passed with no contact, it's reasonable to follow up. Before that, assume the investigation is progressing unless you receive a notice saying otherwise.

If HUD offers conciliation, evaluate the terms based on what you're trying to achieve. If the proposal includes financial compensation and policy changes, compare it to what you'd get from a reasonable cause determination and hearing. Conciliation closes the case faster, but it's a settlement, not a ruling. If accepting the terms resolves the harm, it's worth considering. If it doesn't, decline and let the investigation continue.

What Happens If HUD Misses the 100-Day Deadline

The 100-day standard is a target, not a hard cutoff. If HUD doesn't complete the investigation within 100 days, your complaint doesn't get dismissed. The investigation continues until HUD issues a determination or the case is conciliated.

Extensions are routine in complex cases. If the respondent submits a late response, if witnesses are difficult to reach, or if settlement negotiations are ongoing, HUD will extend the timeline. You'll receive a notice explaining the reason for the extension and the new expected completion date.

You can't force HUD to stick to the 100-day timeline. There's no penalty for missing it, and there's no mechanism to compel a faster investigation. What you can do: track the case status, respond promptly to investigator requests, and follow up if the extension appears indefinite.

How This Connects to What Happens Next

Once HUD issues a determination, the case moves to the next phase. If you're unfamiliar with what that looks like, read What Happens After You File a Fair Housing Complaint: HUD's Investigation Process Explained for a full breakdown of the post-determination steps.

If you're still deciding whether to file, review Your Complete Guide to Disability Housing Rights Under Federal Law to understand what the Fair Housing Act covers and what qualifies as discrimination.

If your complaint involves a denied reasonable accommodation request, How to Request a Reasonable Accommodation from Your Landlord: A Step-by-Step Guide walks through the process of making the request and documenting it properly before HUD gets involved.

Frequently Asked Questions

Does the 100-day timeline include weekends and holidays?

Yes. HUD counts calendar days, not business days. The 100-day clock runs continuously from the date HUD receives and accepts your complaint.

Can I withdraw my complaint during the investigation?

Yes. You can request withdrawal at any time before HUD issues a determination. Withdrawal closes the case, but you can refile if the same conduct continues. HUD may continue investigating even if you withdraw, if the case involves a broader pattern of discrimination affecting other people.

What if the respondent doesn't cooperate with the investigation?

HUD can issue subpoenas to compel testimony or document production. If the respondent ignores a subpoena, HUD can proceed with the investigation based on the available evidence. Non-cooperation by the respondent doesn't stop the case from moving to a determination.

How do I know if HUD accepted my complaint?

You'll receive a notice within a few days of submission. The notice will include a complaint number and the name of the investigator assigned to your case. If you don't receive that notice within two weeks, call the HUD office where you filed to confirm they received it.

Can I file a lawsuit while HUD is still investigating?

No. Once you file a Fair Housing complaint with HUD, you can't file a federal lawsuit on the same facts until HUD completes its investigation or you withdraw the complaint. You have to choose one path at a time. If HUD issues a no reasonable cause determination, you can file a lawsuit within one year of receiving that determination.

What happens if I miss a deadline during the investigation?

If you miss a deadline to submit documentation or respond to an investigator request, contact the investigator immediately to explain why and ask for an extension. HUD may grant it, especially if you're gathering evidence that takes time to obtain. Repeated missed deadlines can result in case dismissal for failure to cooperate, but one missed deadline with a reasonable explanation usually doesn't close the case.