San Diego Transient Occupancy Tax: Zone Rates and Monthly Filing

Every host in the city had been running on the same 10.5% transient occupancy tax rate for years. Measure C ended that. The flat rate is gone, replaced by a tiered zone system where what you owe depends entirely on where your property sits. Most owners still have 10.5% loaded into their pricing software or collection spreadsheets. That is a mistake that creates under-collection and a direct hit to net margin.

Compliance here is not an annual reconciliation. It takes monthly attention, a check of which rate applies to your address, and a clear understanding of what the City Treasurer counts as taxable rent. If you hold an active STRO license, you are already registered with the city. This guide covers the new zone math and the monthly filing requirements you need to meet to keep your license in good standing.

The 10.5% Rate Is Gone: How Measure C Changed Local Tax Rules

The 10.5% rate is out of date. Measure C took effect on May 1, 2025 and replaced the single citywide rate with three zone rates: 11.75%, 12.75% and 13.75%. Which one applies to a property is set by how close it sits to the San Diego Convention Center. If you have not revisited your listing settings since then, you may be collecting the wrong amount on every booking.

You cannot go back and ask a guest for more money after they check out. If your settings are wrong, you absorb the shortfall. The City Treasurer expects every San Diego transient occupancy tax filer to use the correct rate for their property. If you want to know what late or short filing exposes you to, ask the City Treasurer directly rather than working from a figure on a blog.

Measure C also made calculations more complicated for owners with properties in multiple neighborhoods. You can no longer apply a blanket rule across a portfolio. Every property must be evaluated individually. This is where many self-managed hosts fall behind. They wait for Airbnb to update the rates, but platform updates often lag behind local legislation. You are the one the city holds liable, not the platform.

How the Three Tax Zones Work (and How to Look Up Your Rate)

San Diego now uses three transient occupancy tax rates: 11.75%, 12.75% and 13.75%. Which one applies to a given property is determined by its proximity to the San Diego Convention Center. It is not set by neighbourhood name, and it is not a coastal versus inland split, so do not infer your rate from where you think your property sits relative to the beach. Confirm your own address with the city before you file your next return.

Finding your rate is not always straightforward, and zip codes are not a reliable guide. Check your specific address with the City Treasurer rather than relying on what other hosts report, because a rate that is correct for one property is not automatically correct for another a few streets away. If you collect at a lower rate than the one the city applies to your address, you owe the difference out of your own pocket.

Whichever rate applies to you, it is worth accounting for it when you set nightly rates, because a nearby listing may sit at a different one.

What Counts as a Taxable Stay

The tax applies to stays of less than one month, and the city measures that by the calendar rather than by a 30 or 31 day count. A stay from January 31 to February 28 counts as a month; February 1 to February 28 does not. For the overwhelming majority of short-term rentals, the stay is taxable. What counts toward the taxable amount goes beyond the nightly rate, so confirm with the City Treasurer how to treat cleaning, pet and extra-guest charges before you file your first return.

Renaming a mandatory charge as a resort fee or a linen fee does not change how the city treats it. The safe working assumption is that a charge the guest must pay in order to stay forms part of the taxable amount, and that a genuinely optional extra requested after arrival may not. Get that confirmed for your own listing rather than guessing at it.

Work from the gross amount the guest paid rather than what lands in your account. Your own cleaning costs and card processing fees are not deducted before the percentage is applied. So if a guest pays $1,000 for the stay plus a $200 mandatory cleaning fee, the calculation starts from $1,200, and you apply whichever rate the city assigns to your address.

How to Register and Get Your TOT Certificate

Holding a Short Term Residential Occupancy (STRO) license is not the same as having a TOT certificate. You need both to operate legally in San Diego. The STRO license is your permission to rent the unit. The TOT certificate is your account with the City Treasurer to remit taxes. You register through the city's Transient Occupancy Registration System online, or by sending the application form to the Office of the City Treasurer, before you accept your first guest. The process asks for your business details and the specific address of the rental property.

Once approved, the city issues the certificate by email. It confirms you are registered to collect and remit the tax. If you operate more than one address, ask the City Treasurer how your certificates should be structured rather than assuming a single account covers everything. You will also need this certificate number to complete your San Diego STRO permit requirements.

Operating without a certificate means collecting money the city expects to be registered and remitted. The city does not publish a single flat fine for it, so ask the City Treasurer what you are actually exposed to rather than trusting a number from a third-party guide. What the STRO ordinance does set out is a revocation path: where a third violation of the host operating requirements is alleged at the same dwelling unit or by the same host within 12 months, a hearing officer can revoke the license.

Monthly Filing: Deadlines, What to Report, and Zero Returns

Monthly filing is the standard in San Diego. Returns are due on the last day of the following month, so June's return is filed and paid by July 31. Late filing carries consequences, and the specific penalty is a question for the City Treasurer rather than something to take from a third-party guide.

A month with no bookings is a common failure point for owners who take a property off the market for maintenance, because they assume no revenue means nothing to file. Check with the City Treasurer whether a return is still due for that month before you skip it. When you do have revenue, report gross receipts and calculate the tax using the rate for your address. Do not deduct management fees or platform commissions first.

If you are self-managing, set a recurring calendar alert for the 20th of every month. That gives you a ten-day window to pull your booking reports, work out what you owe, and submit payment before the month-end deadline. Keep records of guest stay dates, nights booked per reporting period and gross receipts for four years, because that is the window the city can look back over.

Displaying Your TOT Certificate Number and STRO License on Ads and Exterior Notices

Transparency is a major focus for San Diego enforcement officers. You are legally required to display your TOT certificate number and STRO license number on every advertisement for the property. That includes your Airbnb listing, your VRBO listing, and any direct booking website you run. If an enforcement officer finds a listing without these numbers, they can issue a citation. That citation is often the first step in a broader audit of your tax history.

The requirement goes beyond digital ads. You must also post an exterior notice at the property, visible from the sidewalk or public right of way. It must carry your TOT certificate number, your STRO license number, and contact details for the host or the designated local contact. If those contact details change, you have 30 days to update them with the Office of the City Treasurer.

Skipping the exterior notice is an easy way to get flagged. A company specializing in San Diego short term rental property management will normally keep these details current as part of the service.

Common Mistakes San Diego STR Owners Make With TOT

The most frequent mistake is assuming the booking platforms handle the whole obligation. Platform collection arrangements vary and change, so check what yours actually remits for your San Diego address instead of assuming it is complete, and confirm with the City Treasurer what you remain responsible for filing. Another common mistake is leaving mandatory cleaning fees out of the amount the tax is calculated on. On a $200 cleaning fee that is a few tens of dollars, and across a season of bookings it compounds into a real underpayment.

Many owners also fail to maintain thorough records for potential city audits. If the city audits you, you must produce evidence of every stay and every dollar collected. This is one reason many owners move to specialized management. Atlia maintains property and operating details inside our Property Brain system. We give owners transparent reporting so you stay informed without handling daily operations.

One thing owners sometimes worry about unnecessarily is the Tourism Marketing District assessment. The city applies it to lodging businesses with 70 or more rooms, so an ordinary single-property short-term rental owner generally sits outside it. Separately, there is a Rental Unit Business Tax obligation, which is its correct name rather than a business tax certificate. Confirm the current amount with the City Treasurer.

Conclusion

Compliance in the San Diego rental market is no longer a set-and-forget task. The shift from a flat 10.5% rate to a zone-based system means every error in your settings directly cuts into your rental yield. You are running a business in a highly regulated environment where the City Treasurer expects monthly precision.

Atlia handles the day-to-day side of this. For a flat 10% of booking revenue that covers guest communication, pricing, turnovers and maintenance coordination, with local operators near each property. Schedule a free property review to see what that looks like for your home.