How to Look Up Mello-Roos on an Orange County Home

To find out if a house has Mello-Roos in Orange County, look up its current property tax bill by address or parcel number at the Orange County Treasurer-Tax Collector's site, TaxBill.octreasurer.gov, and read the special assessment charges. A Mello-Roos special tax appears there as its own line, usually naming the community facilities district (CFD), with this year's amount and a phone number for the agency that levies it. The county's free OC Tax Map shows the same charges by address.

The bill shows only this year's amount. Before you commit, get the district's Notice of Special Tax from the levying agency, which states the maximum tax, how much it can rise each year and the last year it can be charged. Then confirm that the seller's disclosures and the preliminary title report match.

For whether Mello-Roos or HOA dues cost more over time, see our Mello-Roos vs HOA guide. This is general information, not legal or tax advice; confirm details with the levying agency and an attorney or CPA.

What you are looking for on the bill

Mello-Roos is a special tax levied by a CFD under the Mello-Roos Community Facilities Act of 1982, which begins at Government Code section 53311. A city, the county, a school district or another local agency forms the district, and two-thirds of the votes cast must approve the tax. If fewer than 12 registered voters live in the area, as is typical of land still being developed, landowners vote instead, one vote per acre.

The tax pays for public facilities such as schools, roads and parks, and can also fund ongoing services. It is not based on assessed value. After the election, the agency records a notice of special tax lien with the County Recorder, so the obligation stays with the property.

Other charges on the bill are not Mello-Roos:

1915 Act assessments. Installments on bonds issued under the Improvement Bond Act of 1915, disclosed the same way as Mello-Roos.
PACE assessments. Energy-improvement financing a prior owner chose, covered below.
Smaller fixed charges. Vector control, water standby, sewer and street lighting charges, among others.

Mello-Roos lookup in Orange County, step by step

1. Get the assessor's parcel number

The assessor's parcel number (APN) is on the tax bill, the preliminary title report and the purchase agreement; the county's sample bill shows the format 123-456-10.

2. Pull the secured tax bill

At TaxBill.octreasurer.gov, enter the APN or address. You will see the current secured bill, past bills and whether taxes are paid.

3. Read the special assessment charges

The bill's tax section starts with charges based on value: the 1% basic levy and voter-approved bond rates. Below those are the special assessment charges, each a fixed dollar amount with a phone number for the agency that levies it. The Treasurer-Tax Collector has changed Mello-Roos entries to show each district's actual name. On the county's sample bill, a Ladera Ranch home shows two: a Capistrano Unified School District CFD and a County of Orange CFD. If a line shows only a label such as "Mello-Roos" and a code, call the number beside it, or find the code in the Auditor-Controller's yearly Special Assessment Contact List.

4. Cross-check on the OC Tax Map

The OC Tax Map at mello.ocgov.com displays the base levy and special assessments for a property, including Mello-Roos, CFD and PACE charges.

Get the maximum tax and end date from the levying agency

This year's levy can be less than the district is allowed to charge, so budget from the maximum. Under Government Code section 53340.2, every agency that levies a Mello-Roos tax must designate an office to answer questions and provide a Notice of Special Tax to anyone who asks, within five working days, for no more than $15. Call the number on the bill to request it. The notice states:

The maximum special tax for facilities and the percentage it can increase each year, if any.
The last tax year it can be levied.
Any separate tax for ongoing services and how long it can last, which the form allows to be a stated year or "forever."

Current law adds protections for homes: the maximum must be a dollar amount that rises no more than 2% a year, the district must name a final tax year, and other owners' delinquencies cannot raise your tax more than 10% above what it would otherwise be. Some older districts were formed under earlier rules, so read the notice rather than assuming.

Also ask which tax class the home falls in under the district's rate and method of apportionment, and whether an owner can prepay the tax. For districts formed after January 1, 1992, an owner or resident can request an annual report on what the district collected and spent.

Check the bonds behind the district

Agencies that sold Mello-Roos bonds on or after January 1, 1993 must file a Yearly Fiscal Status Report with the California Debt and Investment Advisory Commission (CDIAC) by October 30 each year until the bonds are retired, showing the principal outstanding, the reserve fund and the number of delinquent parcels. CDIAC publishes these reports, and documents such as official statements, on its DebtWatch site, and the Treasurer-Tax Collector's Mello-Roos page shows how to match the name on your bill to the CDIAC record. Maturity dates show when the bonds are scheduled to be repaid; the notice's final tax year is the last year the facilities tax can be levied.

The seller's Mello-Roos notice (Civil Code 1102.6b)

When a resale home is subject to a Mello-Roos special tax, a 1915 Act assessment or a PACE contractual assessment, Civil Code section 1102.6b requires the seller to make a good-faith effort to obtain a disclosure notice from each levying agency and give it to the buyer if the agency makes it available. A seller can instead use a private disclosure company's notice if it includes the required details, such as the district's name, this year's tax, the maximum tax and annual increase, and the date the tax can be levied until.

Once the notice is delivered, the seller and agents need not provide more information, and agents have no duty to discover a district they do not actually know about. That is why we run the lookup ourselves. Our guide to California seller disclosures covers the rest of the package.

The agency's notice form describes a right to cancel within 3 days of receiving it in person or 5 days after it is mailed. For brand-new homes, Government Code section 53341.5 requires the builder to give you the notice, and you to sign it, before you sign the purchase contract. Our new construction team can review those notices with you.

What to ask in escrow

Use your contingency period to close gaps; our escrow timeline guide covers the deadlines.

Does every Mello-Roos, 1915 Act and PACE line on the bill appear in the seller's disclosures, with matching amounts?
For each district, what are the maximum tax, annual increase and final tax year, and does a services tax end later?
Does the preliminary title report show a recorded special tax lien or assessment missing from the bill or disclosures?
Are current and prior-year installments paid? Unpaid special taxes can lead to foreclosure. Under the standard C.A.R. purchase agreement, unless you agree otherwise, they are brought current and prorated at closing, and the buyer takes over later payments without a credit toward the price.
Is there a PACE balance, and has escrow ordered a payoff demand?
Does your lender's payment estimate include the special taxes?

PACE assessments vs Mello-Roos

Both are collected on the tax bill. Mello-Roos is a community-wide, voter-approved tax that carries over to the next owner. PACE (Property Assessed Clean Energy) is financing a previous owner chose for improvements to one house, repaid through a contractual assessment. The county's special assessment list shows PACE charges under program names such as HERO and CaliforniaFIRST.

Fannie Mae notes that PACE loans typically have first lien priority over existing mortgages, and it will not buy a mortgage on a home with an outstanding PACE loan that has that priority. Plan on the seller paying it off through escrow, as our guide to selling a home with solar panels explains.

How to compare total tax rates between homes

The value-based part of the bill depends on the tax rate area (TRA) printed on it. The Auditor-Controller's yearly Tax Rate Book lists every TRA's rate: the 1% basic levy plus voter-approved bond rates. The book excludes Mello-Roos and special assessments, so a TRA rate alone understates the cost of a home in a CFD.

To compare homes:

Multiply your expected price by the TRA's total rate. Don't use the seller's tax, which reflects their assessed value; our Orange County property tax guide explains why.
Add every fixed charge from the current bill, using the maximum Mello-Roos tax for a conservative number.
Divide the total by the price to get an effective rate.

A made-up example:

Home A: $1,100,000 price, assumed TRA rate of 1.05% ($11,550), assumed Mello-Roos of $4,200 and other fixed charges of $250. Total about $16,000, an effective rate of about 1.45%.
Home B: $1,150,000 price, assumed TRA rate of 1.08% ($12,420), no Mello-Roos and fixed charges of $200. Total about $12,620, an effective rate of about 1.10%.

Home B costs $50,000 more but has a tax bill about $3,380 a year lower. Because Mello-Roos is not based on value, Home A's special tax does not reset to your price; it follows the district's schedule. These figures leave out the homeowners' exemption.

How Remark Homes can help

For our Orange County buyers, we pull the tax bill before you write an offer, request each district's Notice of Special Tax, check it against the disclosures and title report, and build the full tax cost into your payment estimate. Learn more about our buyer services.

Frequently asked questions

How do I find out if a house has Mello-Roos in Orange County?

Search the address or parcel number at TaxBill.octreasurer.gov or on the OC Tax Map and look for special assessment charges that name a CFD or say Mello-Roos. Then ask the listed agency for its Notice of Special Tax.

Does Mello-Roos go away when the bonds are paid off?

The facilities tax can be levied until the authorized facilities are built and the bonds are repaid, but never after the district's final tax year. A separate services tax can last longer, in some districts with no end date.

Can Mello-Roos go up after I buy?

It can if the district has an annual escalator or levies less than its maximum. Under current law, a home's maximum can rise no more than 2% a year.

Can I pay off Mello-Roos early?

Only if the district's formation documents allow it. Ask the agency on the tax bill for a payoff figure.

How to Find Out If a House Has Mello-Roos in Orange County