Mello-Roos Bonds in California: A 2026 Agent's Guide

Mello-Roos is a special tax California cities and counties can levy inside a Community Facilities District (CFD) to pay for infrastructure — schools, roads, sewers, parks, fire stations — in new or underserved developments. It was created by the Mello-Roos Community Facilities Act of 1982, codified at California Government Code § 53311 et seq., specifically because Proposition 13 cut off the property tax revenue local governments used to rely on for that kind of build-out. Unlike your regular 1% ad valorem property tax, a Mello-Roos tax is a flat or formula-based parcel tax that sits outside Prop 13's protections. It commonly runs $300 to $5,000+ per year depending on the district and the home, typically lasts 20 to 25 years (up to a statutory maximum of 40 years) to match the underlying bond repayment schedule, and can increase annually — usually up to 2% per year — under the district's own Rate and Method of Apportionment (RMA). Sellers must disclose it to buyers under Civil Code § 1102.6b before the sale closes.

A CFD is a defined geographic area — often a single new subdivision, sometimes a whole master-planned community — where a local government has been authorized to issue bonds and levy a special tax to repay them. The money funds infrastructure the developer would otherwise have to build and hand off: elementary and high schools, road widening and interchanges, storm drains, water and sewer lines, parks, libraries, and in some districts, ongoing services like police, fire protection, or landscaping maintenance for common areas. Formation requires a two-thirds supermajority vote. If the district has fewer than 12 registered voters (true of almost every new-construction CFD, since the land is undeveloped at formation), the vote is held among landowners, weighted by acreage, instead of registered voters — which is why the developer, not future homebuyers, is the one who actually approves the tax before a single house is sold. That structural detail matters for the exam: a Mello-Roos vote is not a vote homebuyers ever personally participate in, which is exactly why the disclosure requirement in Civil Code § 1102.6b exists — buyers need the notice because they never had a vote. A CFD can also be layered: it's common for a single new home to sit inside two or three overlapping districts at once — one formed by the school district, one by the city for roads and sewers, and one by a county fire authority — each with its own separate line item and its own separate Rate and Method of Apportionment. Agents pulling a preliminary title report or county tax data should check for every CFD attached to the parcel, not just the first one listed, since buyers comparing two similarly priced homes sometimes find one carries a single $900/year CFD while the other stacks three totaling $2,400/year.

Ad valorem property tax is based on assessed value: 1% of the home's assessed value under Prop 13, escalating no more than 2% a year on that assessed value. Mello-Roos works differently. Because it's a special tax rather than a property tax, the annual amount is set by a formula in the district's Rate and Method of Apportionment, typically built from physical characteristics of the parcel — square footage of the structure, lot size, and land-use category (single-family, multi-family, commercial) — rather than the home's market price. That formula is locked in when the CFD forms and published in the district's public RMA document, so two homes of identical value in different CFDs can carry very different Mello-Roos bills. Total annual special taxes and assessments in a new-home CFD are generally structured not to exceed roughly 1% to 1.5% of the home's value at the time the district formed, though the dollar amount that results — commonly a few hundred dollars to well over $5,000 a year — does not shrink if the home's market value later drops, because it was never tied to value in the first place. Because the formula is fixed at formation and keyed to physical characteristics rather than resale price, a Mello-Roos bill does not get reassessed the way ad valorem property tax does after a sale. A buyer who pays well above the original purchase price for a resale home in an existing CFD inherits the same special-tax formula the first owner had — buying the house doesn't reset or increase the Mello-Roos amount the way a sale resets the Prop 13 assessed value for regular property tax. That distinction trips up agents who assume every part of the tax bill jumps when a home changes hands; only the ad valorem portion does.

This is the concept the DRE exam tests most directly, and it's also the single most common source of buyer confusion. Proposition 13 caps the general ad valorem property tax rate at 1% of assessed value and limits annual increases in assessed value to 2%, as our Prop 13 vs. Prop 19 guide covers in full. Mello-Roos is not an ad valorem tax — it's a special tax authorized under a completely separate statute — so it is layered on top of the 1% cap, not counted inside it. That's not an accident or a loophole; it's the entire reason the Legislature created the Mello-Roos Community Facilities Act one year after Prop 13 passed. Cities and counties lost the ability to raise general property taxes to fund new infrastructure, so the state gave them a separate mechanism — a voter-approved special tax outside Prop 13's reach — to keep funding schools and roads in growing areas. A buyer who assumes their total property tax bill is capped at roughly 1.25% of value (the effective statewide average once local voter-approved bonds are included) can be caught off guard when a CFD adds another 0.5% to 1.5% on top, with its own separate escalation schedule.

California Civil Code § 1102.6b requires a seller of property in a CFD to make a good-faith effort to obtain a Notice of Special Tax from the district (or the county) and deliver it to the buyer before the sale closes. That notice must state the name of the CFD levying the tax, the current annual tax amount, the maximum tax that can ever be levied on the parcel, the annual percentage by which the maximum can increase, and the date the special tax expires. This disclosure is separate from, and in addition to, the standard Natural Hazard Disclosure statement and the Transfer Disclosure Statement — neither of those forms is designed to capture a CFD's tax rate or expiration date, which is why Civil Code § 1102.6b exists as its own standalone obligation under the broader material facts disclosure framework. In practice, agents pull the Notice of Special Tax from the county tax collector, the CFD administrator, or a title company's tax data service, since most county assessor parcel records list active CFDs by name but don't always show the payoff amount or expiration date on their own. Skipping this step doesn't just create an unhappy buyer — a seller (and the agent who should have flagged it) can face a rescission or damages claim if a buyer closes without ever being told their tax bill includes a Mello-Roos assessment that will run for another 18 years. Timing matters as much as content. Civil Code § 1102.6b requires the Notice of Special Tax to reach the buyer before the transfer of title, and best practice among California brokerages is to request it the same week a listing goes live on new or master-planned construction, since some CFD administrators take one to two weeks to generate the notice on request. Waiting until an offer is accepted to first ask the county for the disclosure routinely delays closing, and in a competitive multiple-offer situation, a listing agent who already has the Notice of Special Tax in the disclosure package has one less reason for a buyer to renegotiate late in escrow.

Most Mello-Roos special taxes are structured to retire in 20 to 25 years, timed to match the amortization schedule of the bonds the CFD issued, though the Act permits terms as long as 40 years for some districts. Once the underlying bonds are fully repaid, the special tax terminates automatically — the CFD doesn't get to keep levying it indefinitely, and the expiration year is one of the five required disclosures under Civil Code § 1102.6b. Homeowners can typically request a lump-sum prepayment quote from the CFD's bond administrator and pay off the remaining balance early, which permanently removes the special tax line from future tax bills — a detail worth knowing for buyers comparing a home with 3 years left on its CFD term against one with 22 years left, since those are financially very different propositions even at an identical current annual tax amount. Agents should tell buyers to check the current year and the payoff/expiration year separately; a listing sheet that only states "Mello-Roos: $180/month" without the remaining term is an incomplete picture of what the buyer is actually taking on. Prepayment amounts are not simply the remaining years multiplied by the current annual tax — CFD administrators calculate a discounted lump sum tied to the outstanding bond principal, so the payoff figure typically runs several multiples of one year's tax bill (often in the $8,000 to $20,000+ range for a single-family home, depending on the district and years remaining). Sellers who prepaid their Mello-Roos before listing should have documentation of that payoff on hand, since a title report that still shows an active CFD lien can otherwise make a buyer's lender assume the tax is ongoing.

For the exam, remember three linked facts: Mello-Roos comes from Government Code § 53311 et seq. (the 1982 Act), it exists because it sits outside Prop 13's 1% ad valorem cap, and Civil Code § 1102.6b is the statute that obligates a good-faith seller disclosure of the Notice of Special Tax before closing. For a working agent, the practical habit that prevents disputes is simple: pull the CFD's current Notice of Special Tax as early as possible in a listing on new or master-planned construction, don't rely on the NHD or TDS to cover it, and put the expiration year — not just the current monthly amount — in front of every buyer before they write an offer. Day One's practice exams for the California salesperson test weight tax-and-disclosure questions, including Mello-Roos and Prop 13 comparisons, at the same frequency the actual DRE exam does, so agents studying with it see this exact fact pattern before test day rather than for the first time in an escrow.