California FTB Notice Substandard Housing No Notice of Noncompliance Return (AUD 1577)

The AUD 1577 is a return notice from the FTB indicating that after reviewing your substandard housing audit, no Notice of Noncompliance was issued against you. In plain terms, this is a favorable outcome — the FTB reviewed the property records, found no active or unresolved housing code violations that triggered the substandard housing disallowance provisions, and is closing out that portion of the audit without a penalty.

This notice is typically issued after you’ve responded to an earlier request (like AUD 1573 or 1574) and provided documentation showing the property was compliant during the tax year. The phrase ‘return’ in the notice name refers to the return of your case status to a cleared position — not a tax return. It means the FTB is not pursuing further action under the substandard housing program for the period examined.

Even though AUD 1577 is good news, it’s worth keeping a copy with your tax records for at least 7 years. The FTB can reopen a matter if new information surfaces, and having documented proof that the agency already cleared this issue is valuable protection.

Not necessarily. The AUD 1577 only closes the substandard housing component of your audit. If the FTB was auditing other items on the same return — income underreporting, other deduction categories, or residency questions — those issues remain open until you receive a separate closing notice or a Notice of No Change for the full return. Always read the AUD 1577 carefully to see whether it references a specific issue or the entire audit.

California’s statute of limitations for standard audits is 4 years from the later of the return due date or filing date under R&TC Section 19057. If your audit touches issues other than substandard housing, the FTB can still issue additional assessments for those issues within that window, even after issuing AUD 1577. Some taxpayers assume one cleared notice means the whole case is done — that’s a mistake that can cost you.

We always request a written confirmation of full closure from the assigned auditor after receiving AUD 1577. This creates a documented record that the FTB confirmed no outstanding issues remain for that tax year.

The FTB’s substandard housing program is largely automated — they match rental property addresses from your Schedule CA or Schedule E against housing databases maintained by local code enforcement agencies across California. A past violation, a neighbor’s complaint that was filed under your address by mistake, or an old citation that was cleared but not updated in the county database can all trigger a notice even when your property was compliant the entire time.

It’s also possible the property was cited by a prior owner, and the citation record stayed attached to the parcel number rather than the owner’s name. Under California’s property tax system, parcel-level records don’t always differentiate between owners. If you purchased the property after a violation was issued and corrected, you could still receive a notice — even though you had nothing to do with the original problem.

The AUD 1577 being issued without a noncompliance finding confirms the system worked correctly once you (or we) provided the right documentation. It’s frustrating to go through the process for a property that was always in good shape, but the audit letters are triggered automatically and resolved manually.

Generally, no. AUD 1577 means the FTB reviewed your return and found no change is needed for the substandard housing issue. You don’t need to amend a return just because the FTB looked at it — an amendment is only warranted if you find an error in what you originally reported. If the FTB didn’t change your return and you reported everything correctly, there’s nothing to fix.

The exception is if, during the audit process, you discovered you actually did misclaim something unrelated to housing — for example, you realized you overstated mortgage interest or included personal expenses in your Schedule E. In that case, you should file an amended return (Form 540X for California) voluntarily, which typically reduces any future penalty exposure by demonstrating good faith. R&TC Section 19322 allows amended returns up to 4 years after the original due date.

We review our clients’ returns whenever an audit closes, even a clean one like AUD 1577. Sometimes the process surfaces items worth correcting proactively on other years. It’s a useful check, not just a box-tick.

The timeline varies depending on how quickly you respond to earlier notices and how backed up the FTB’s audit workload is. In straightforward cases where the property documentation is clean, the sequence from initial AUD 1573 forms request to AUD 1577 closure typically takes 3 to 6 months. Complex cases with multiple properties or disputed violation records can stretch to 12 to 18 months.

The FTB is required under R&TC Section 19032 to act on your protest within a reasonable time, but ‘reasonable’ isn’t defined by statute. If you respond promptly and completely, the process moves faster. Delays on your end — late document submissions, requests for extensions — add time proportionally. Each 30-day extension you request adds at least 30 days to the total timeline.

We track all FTB audit deadlines and response windows for our clients and push for timely resolution. The longer an audit stays open, the more interest accrues on any disputed amount — even if you ultimately win, a protracted timeline is costly.