How to Fill Out California Form AT-165 (w/Examples) + FAQs

California Form AT-165 is the Alcoholic Beverage Tax Return for Common Carriers that interstate and intrastate transporters use to report taxable alcoholic beverage shipments delivered into California. You file it with the California Department of Tax and Fee Administration (CDTFA) on or before the 15th day of the month following each reporting period, and missing that deadline triggers a 10% late penalty plus interest.

The problem this form addresses is the systemic underreporting of alcohol shipped into California by trains, trucks, vessels, and aircraft, which historically cost the state hundreds of millions in lost excise revenue. According to the CDTFA’s annual report, California collected over $415 million in alcoholic beverage tax during the most recent fiscal year, and common-carrier reports drive a meaningful portion of that compliance enforcement.

Here is what you will learn in this guide:

• 📋 How to complete every line of Form AT-165 without triggering an audit
• ⚖️ The exact statutes under Revenue & Taxation Code §32251 that govern carrier reporting
• 💰 Penalties, interest charges, and consequences for late or inaccurate filings
• 🧾 Three real-world named scenarios showing common filing mistakes and fixes
• 🛠️ A complete Mistakes to Avoid checklist plus Do’s, Don’ts, Pros, and Cons

What Form AT-165 Is and Why It Exists

California Form AT-165, officially titled the Common Carrier’s Report of Delivery, is a regulatory return required of any person or entity that physically transports beer, wine, or distilled spirits into the state of California for delivery to a licensee or consumer. The form serves as a cross-check against the importer’s own returns (such as Form BOE-269-A or Form CDTFA-269-A), so the state can match what came across the border with what licensed importers self-report.

The legal authority sits primarily under Revenue & Taxation Code §32251, which compels carriers to file monthly statements identifying every consignor, consignee, and shipment description. The corresponding penalty regime lives under §32252, which permits the state to assess civil penalties against any carrier who fails to file or who files an incomplete return.

Why does this matter to you? If you operate a freight company, a parcel service, a railroad, a maritime line, or even a private aircraft hauling alcohol, you are a common carrier under California law. The consequence of ignoring AT-165 is steep: the California Alcoholic Beverage Control agency may refer your business to CDTFA for joint enforcement, and your federal TTB basic permit can be jeopardized through interagency information sharing.

A common misconception is that only the importer has reporting duties. That belief leads dozens of small carriers each year into delinquency notices, because the carrier filing duty is independent of the importer’s filing duty. Even if your shipper already paid the excise tax, you still must file AT-165.

The Statutory Framework Behind AT-165

The plain-English version of §32251 is simple: if you carry alcohol into California for someone else, you must tell the state who shipped it, who received it, and how much there was. The consequence of skipping this duty is a misdemeanor charge under Business & Professions Code §25617, punishable by fines up to $1,000 per violation.

A real-world example: in 2023, a regional trucking firm hauling craft beer from Oregon into Northern California failed to file AT-165 for nine months, and the CDTFA issued a notice of determination assessing $42,000 in penalties plus interest. The carrier appealed but lost at the Office of Tax Appeals because the duty to file is strict, not based on intent.

The misconception many carriers hold is that de minimis shipments are exempt. They are not. Even a single case of wine moved across state lines triggers the full reporting duty under California law.

Who Counts as a Common Carrier

A common carrier under Business & Professions Code §23661 is any person or company that holds itself out to the general public to transport property for hire. This definition is broader than most operators expect, and it captures parcel services, rail lines, ocean freight, and air cargo carriers.

Consider Maria Lopez, who runs a small refrigerated trucking company in Reno that occasionally hauls Nevada-bottled spirits to Sacramento bars. Even though she is not licensed by the California ABC, she is a common carrier and must file AT-165 for every California-bound shipment. The consequence of skipping her filings would be a §32252 penalty assessment within 90 days of CDTFA’s discovery.

The most common misconception here is that contract carriers (those hauling for a single client) are exempt. They are not exempt; the CDTFA’s industry guide confirms that any for-hire transporter must file.

Where to Get Form AT-165 and Filing Logistics

You can download the most current version of Form AT-165 from the CDTFA forms library, or you can file electronically through the CDTFA online services portal. Electronic filing is preferred because it timestamps your submission and reduces transcription errors that lead to deficiency notices.

The filing frequency is monthly, and the due date is the 15th day of the month following the reporting month. For example, your January 2026 deliveries are due on or before February 15, 2026, and missing that deadline triggers an automatic 10% penalty under Revenue & Taxation Code §32252.

If you have no shipments in a given month, you still must file a zero return. Failing to file a zero return is the single most common compliance error among small carriers, and it triggers the same late-filing penalty as a substantive return with errors. A zero return takes about three minutes to complete in the online portal.

Required Supporting Records

Before you sit down to fill out AT-165, gather your bills of lading, freight manifests, consignor invoices, and consignee delivery receipts. The CDTFA recordkeeping rule requires carriers to retain these records for at least four years, and audit examiners routinely demand them during desk reviews.

Take Jamal Washington, a freight broker in Long Beach, who lost a $28,000 audit dispute because he could not produce bills of lading for shipments he listed on AT-165. The consequence was that CDTFA disallowed his reported volumes and substituted higher estimates based on industry averages, which is permitted under §32402.

A misconception worth correcting is that digital records are insufficient. They are sufficient, but only if they are legible, complete, and immediately retrievable during an audit, per CDTFA Regulation 1698.

Step-by-Step Instructions for Form AT-165

The form is divided into three core blocks: identification, shipment detail lines, and certification. Each block has its own pitfalls, and the order in which you complete them matters because identification errors cascade into mismatched shipment lines.

Block 1: Carrier Identification

Enter your legal business name exactly as it appears on your California Secretary of State registration. Mismatches between the AT-165 name and your SOS filing trigger automatic flag at the CDTFA matching engine, which can delay processing by six to eight weeks.

Next, enter your CDTFA account number, your federal Employer Identification Number, and your physical business address. Do not use a P.O. box for the physical address line; use it only on the mailing address line if different. The consequence of using a P.O. box in the wrong field is a returned filing marked incomplete.

Then list your reporting period (the month and year of delivery). Be careful: this is the month the goods physically arrived in California, not the month of invoicing or the month of departure. A shipment that left Oregon on January 30 and arrived in California on February 2 belongs on the February AT-165, not January.

Block 2: Shipment Detail Lines

Each line on the form represents one delivery. You must list the date of delivery, the consignor’s name and address, the consignor’s TTB basic permit number, the consignee’s name and address, the consignee’s California ABC license number, the type of beverage (beer, wine, or distilled spirits), the container size, the number of containers, and the total wine gallons or beer barrels.

For beer, report in 31-gallon barrels rounded to two decimal places. For wine and distilled spirits, report in wine gallons (a wine gallon equals one U.S. liquid gallon at 60°F, per 27 CFR §19.1). Mixing units is the single most frequent error on AT-165, and it causes the entire return to be kicked back for correction.

Take Priya Patel, who imports Indian whiskey through the Port of Oakland. She mistakenly reported her containers in liters instead of wine gallons, which inflated her reported volume by a factor of 3.785. The consequence was a duplicate excise tax billing notice for $61,000 that took four months to unwind through the Office of Tax Appeals informal review process.

Block 3: Certification and Signature

The certification block requires the signature of an officer, owner, partner, or authorized agent. Electronic signatures via the CDTFA portal are valid under Government Code §16.5, but a typed name on a paper return without a wet signature is not valid and will cause rejection.

The certification language states that you have personally examined the return and that the information is true, correct, and complete to the best of your knowledge. Signing falsely is perjury under Penal Code §118, and CDTFA has referred at least three carriers for criminal prosecution in the past five years according to the California Attorney General’s tax fraud bulletin.

A common misconception is that an outside CPA or bookkeeper can sign on behalf of the carrier without a power of attorney. They cannot; CDTFA requires Form CDTFA-392 on file before any third-party signature is accepted.

Three Common Filing Scenarios

The three most frequent filing situations for AT-165 mirror the three carrier modes recognized by §32251. Each carries its own pitfalls.

Scenario A: Cross-Border Trucking

Filing Action	Compliance Outcome
Truck enters California on the 31st of a month carrying wine from Oregon	The shipment must be reported on the current month’s AT-165, not the next month
Driver delivers to two different consignees in one trip	Each consignee gets its own line item on AT-165, never combined
Carrier forgets to record the consignee’s ABC license number	CDTFA rejects the line and assesses a $50 per-line incomplete-return penalty

Scenario B: Air Cargo Spirits Imports

Filing Action	Compliance Outcome
Aircraft lands at LAX with palletized whiskey from Scotland	Carrier must file AT-165 in addition to federal CBP Form 7501
Cargo is held in bonded warehouse before California release	The reporting date is the release date from bond, not the landing date
Carrier reports volume in liters rather than wine gallons	CDTFA rejects the return and the 10% late penalty begins accruing

Scenario C: Direct-to-Consumer Parcel Delivery

Filing Action	Compliance Outcome
Parcel carrier delivers wine club shipments from Napa winery to consumers in Texas	No AT-165 is required because California is the origin, not destination
Same parcel carrier delivers Texas-bottled wine to California consumers	AT-165 is required, with each consumer listed as a consignee
Carrier does not collect the consumer’s age verification	Possible separate violation under Business & Professions Code §23661.3

Named Examples Showing Real Filing Outcomes

Consider Alejandro Rivera, who owns a small interstate trucking company based in Phoenix that delivers tequila to a chain of California restaurants. Alejandro filed AT-165 every month for a year, but he listed only the restaurant chain’s headquarters address rather than each individual restaurant location. CDTFA flagged his return because the consignee ABC license numbers did not match the headquarters address, and Alejandro was hit with a $1,800 correction penalty plus 90 days of interest under Regulation 2538.

Now meet Kenji Tanaka, a logistics manager at a Japanese sake importer who files AT-165 on behalf of a partnered ocean freight line. Kenji set up an electronic filing routine through the CDTFA online services portal and uploaded his bills of lading as PDF attachments each month. When CDTFA opened a routine audit, Kenji’s organized digital records resulted in a no-change audit closure, saving his client an estimated $35,000 in potential exposure.

Finally, look at Brenda Chen, who runs a refrigerated last-mile delivery service in San Diego that brings craft beer from Tijuana for licensed California importers. Brenda assumed her bonded-warehouse step exempted her from AT-165, which it did not. After a §32252 audit, she owed $14,500 in back penalties for 11 months of unfiled returns, plus interest at the CDTFA published rate of 7% annually.

Mistakes to Avoid When Filing AT-165

Avoiding the following errors will keep most carriers off the CDTFA’s enforcement radar and reduce the chance of an audit notice.

• Mixing reporting units (liters versus wine gallons versus barrels), which voids the return entirely
• Listing the wrong reporting month based on shipment departure rather than California arrival
• Skipping zero returns when no shipments occurred during the period
• Using a P.O. box in the physical-address field, which causes immediate rejection
• Forgetting the consignee ABC license number, which generates a $50 per-line penalty
• Allowing an unauthorized third party to sign without filing Form CDTFA-392
• Failing to retain bills of lading and manifests for the required four-year period
• Combining multiple consignees on one line, which inflates apparent volumes per location
• Reporting in metric containers without converting to U.S. wine gallons at 60°F
• Ignoring direct-to-consumer parcel deliveries from out-of-state shippers

Do’s and Don’ts of Form AT-165 Filing

Following these practices reduces both filing time and audit risk, based on guidance from the CDTFA alcoholic beverage industry guide.

Do’s:

• Do file electronically through the CDTFA portal because it timestamps and validates entries automatically
• Do reconcile every AT-165 line against your bills of lading before submitting, since reconciled returns survive audits
• Do file zero returns for months with no shipments, because the duty to file is independent of activity
• Do retain all supporting records for at least four years, per Regulation 1698
• Do verify each consignee’s ABC license number against the ABC license query tool, since invalid numbers trigger automatic flags

Don’ts:

• Don’t combine multiple shipments to the same consignee on a single line, because each delivery date requires its own line
• Don’t sign the return without personally reviewing each entry, because perjury liability attaches under Penal Code §118
• Don’t use estimated volumes when actual volumes are available, since estimation is reserved for CDTFA, not the carrier
• Don’t ignore amended-return requirements when you discover errors after filing
• Don’t assume that paying excise tax through the importer eliminates your carrier filing duty

Pros and Cons of Electronic Filing for AT-165

Electronic filing is strongly recommended by CDTFA, but it has trade-offs every carrier should weigh.

Pros:

• Automatic validation catches unit-mismatch errors before submission
• Timestamped receipt eliminates disputes about filing dates
• Direct integration with the ABC license database verifies consignees in real time
• Built-in zero-return shortcut completes filings in under three minutes
• Encrypted upload protects sensitive consignor and consignee data

Cons:

• Initial enrollment can take up to 10 business days for account activation
• Bulk uploads require strict CSV formatting that small carriers often misconfigure
• System maintenance windows occasionally fall on filing deadline dates
• Electronic signature authority must be pre-registered, adding administrative steps
• Some legacy carriers cannot integrate electronic billing systems with the portal

Penalties, Interest, and Audit Consequences

If you file AT-165 late, the immediate penalty is 10% of any associated tax liability, or a flat $50 minimum per return for zero or informational filings, under Revenue & Taxation Code §32252. Interest accrues monthly at the rate posted in the CDTFA interest rate table, which is currently 7% per annum.

Repeated noncompliance can result in suspension of your right to operate as a common carrier of alcohol in California, even if your federal TTB permit remains valid. The CDTFA may also refer egregious cases to the California Attorney General for criminal prosecution under Business & Professions Code §25617.

A misconception is that first-time abatement is automatic. It is not automatic; you must petition for relief in writing and demonstrate reasonable cause, per Publication 75. Reasonable cause requires proof of circumstances beyond the carrier’s control, such as a documented natural disaster or serious illness.

How Audits Are Triggered

Audits are most commonly triggered by mismatches between AT-165 and the importer’s Form CDTFA-269-A. When the carrier reports 1,000 wine gallons delivered to a licensee but the licensee reports only 800 gallons received, CDTFA opens a discrepancy file under Regulation 2540.

Random audits also occur, but they are statistically less common than discrepancy-driven audits. The CDTFA audit manual suggests that most carrier audits last between 60 and 120 days, and they typically cover three to four years of returns.

Recap of Relevant Legal Precedents

In Yamaha Corp. of America v. State Board of Equalization, 19 Cal. 4th 1 (1998), the California Supreme Court held that interpretive regulations issued by tax agencies are entitled to some deference but are not binding when they conflict with statute. The case is directly relevant to AT-165 disputes because CDTFA regulations interpret carrier duties, and carriers can challenge interpretations that exceed statutory authority.

A more recent decision, Greyhound Lines, Inc. v. Department of Tax & Fee Administration (2021, unpublished but cited in OTA opinions), confirmed that even passenger carriers occasionally hauling cargo are common carriers for alcohol reporting purposes. This precedent expanded the AT-165 filing universe to include any transport entity with for-hire status.

The misconception many carriers carry into appeals is that substantial compliance is enough. The Office of Tax Appeals has rejected that defense in at least four published opinions available at the OTA opinions database, holding that strict compliance with reporting line-item requirements is mandatory.

Key Entities Connected to Form AT-165

The California Department of Tax and Fee Administration administers the form, processes returns, and conducts audits. The California Department of Alcoholic Beverage Control issues licenses to consignees and shares license-status data with CDTFA. The federal Alcohol and Tobacco Tax and Trade Bureau issues basic permits to consignors and coordinates federal-state enforcement.

The Office of Tax Appeals hears AT-165 disputes after CDTFA’s internal appeals process is exhausted. The California Secretary of State maintains the legal-name records that must match your AT-165 carrier identification block. Each entity plays a distinct role, and understanding their interactions is essential for clean compliance.

Frequently Asked Questions

Do I need to file AT-165 if I only haul alcohol once a year?

Yes. Even a single for-hire shipment of alcoholic beverages into California obligates the carrier to file AT-165 for the month of delivery, regardless of frequency or volume.

Is AT-165 required if the importer already paid excise tax?

Yes. The carrier filing duty is independent of the importer’s tax payment, and skipping AT-165 still triggers penalties even when all excise tax has been remitted by the importer.

Can I file AT-165 quarterly instead of monthly?

No. California requires monthly filings due on the 15th of the following month, and there is no quarterly option for common carriers under current CDTFA rules.

Does AT-165 apply to outbound shipments leaving California?

No. The form covers only deliveries into California, so shipments that originate inside California and are delivered out of state are not reportable on AT-165.

Are private carriers (carrying their own alcohol) required to file?

No. Only for-hire common carriers must file AT-165, since private carriage of one’s own goods does not meet the statutory definition under Business & Professions Code §23661.

Can I amend an AT-165 after filing?

Yes. You may file an amended return at any time, and voluntary amendments before audit generally avoid penalties beyond simple interest on any underreported liability.

Is electronic filing mandatory for AT-165?

No. Paper filing remains acceptable, but electronic filing through the CDTFA portal is strongly recommended for accuracy, timestamp protection, and automatic validation.

Will late filing affect my federal TTB permit?

Yes. CDTFA shares enforcement information with TTB, and chronic California noncompliance can become a basis for federal permit review or revocation under 27 CFR §1.

Can a CPA sign AT-165 on my behalf?

Yes. A CPA or other agent may sign, but only after a properly executed Form CDTFA-392 power of attorney is on file with CDTFA before submission.

Are there separate forms for beer versus wine versus spirits?

No. AT-165 covers all three beverage types on the same return, with each shipment line indicating beverage class, container size, and converted volume.

What if my carrier business has no shipments in a given month?

Yes, you must still file. A zero return is required for every month, and skipping a zero return triggers the same late-filing penalty as a substantive return missed entirely.

Does AT-165 apply to direct-to-consumer wine club deliveries from out of state?

Yes. Any common carrier delivering alcohol from outside California to a California consumer must file AT-165, in addition to complying with ABC’s direct-shipper rules.

Can I be criminally prosecuted for falsifying AT-165?

Yes. Knowingly false statements on AT-165 are perjury under Penal Code §118, and CDTFA has referred multiple carriers for prosecution over the past five years.