Mello-Roos Explained: What California Buyers Pay
The extra line on many newer California homes' tax bills: what it pays for, how much it can rise and when it stops.
Mello-Roos is a special tax on property inside a Community Facilities District (CFD), used to pay for roads, schools, parks and other public facilities and services, mostly in newer developments. It's billed with your property tax but is a set dollar amount, not a share of your home's value. For homes, California law caps increases at 2% a year and requires the tax for facilities to end in a named final year.
Where it comes from
The Mello-Roos Community Facilities Act of 1982 (Government Code 53311 and following) lets cities, counties, school districts and other local agencies form a district and, if two-thirds of the votes cast approve (by registered voters, or by landowners when fewer than 12 voters live in the area), levy a special tax secured by a lien on every taxable parcel. Developers often use it to finance infrastructure before homes are built and sold. The tax then passes to each buyer.
What the law guarantees homeowners
Government Code 53321(d) sets rules for any special tax that pays for facilities and is levied on a parcel used for private residential purposes:
- A fixed maximum. The maximum special tax is a dollar amount set by the time the parcel is first taxed as a residence.
- Limited increases. That maximum can rise by no more than 2% a year.
- An end date. The district must name a final tax year, after which the tax can't be levied (except to collect old delinquencies).
- Protection from neighbors' defaults. Delinquencies by other owners can't raise your tax more than 10% above what it otherwise would be.
What it costs
Amounts vary widely by district and home size, so there's no typical figure. Take a $700,000 home with a 1.1% ad valorem rate ($7,700 a year) and a $2,800 special tax with 20 years left, rising at the 2% maximum:
- The total property tax this year is $10,500, an effective rate of 1.50% instead of 1.1%.
- Over the 20 years left, the special tax adds up to about $68,033.
Before you buy
- Read the Notice of Special Tax. Civil Code 1102.6b requires sellers to give it to buyers of property in a Mello-Roos district. When a developer sells new homes, the notice must come before you sign the purchase contract (Government Code 53341.5).
- Get the rate and method of apportionment. It explains how the tax is calculated, the escalator, the final year, and whether you can prepay.
- Check the current bill. The seller's tax bill shows this year's amount; the district can levy less than the maximum but not more.
- Factor it into affordability. It's part of your yearly housing cost; ask your lender how it counts it.
Run your numbers
Our Mello-Roos Calculator projects the special tax year by year to the final year and shows your total tax rate. For the regular part of the bill, use the property tax calculator.
Frequently Asked Questions
Is Mello-Roos the same as property tax?
It's collected on the same county bill, but it's a special tax, not a percentage of your home's value. Your regular property tax is based on assessed value (1% plus voter-approved rates); Mello-Roos is a set amount per parcel under the district's formula.
How do I know if a house has Mello-Roos?
Check the property tax bill for a special tax or CFD line, ask the county tax collector, or read the seller's disclosures: California requires sellers to give buyers a Notice of Special Tax for property in a Mello-Roos district.
Can Mello-Roos go up?
Yes, but for homes only within limits set when the district was formed: the maximum tax can rise by no more than 2% a year, and delinquencies by other owners can't push your tax more than 10% above what it otherwise would be.
Can I pay off Mello-Roos early?
Sometimes. The law lets a district set conditions for prepaying and permanently satisfying the special tax. Whether you can, and for how much, is in the district's rate and method of apportionment; ask the district's administrator.
Does Mello-Roos affect how much house I can afford?
Yes. It adds to your yearly housing cost just like property tax, so include it when you work out a budget, and ask your lender how it counts it when you apply.
This article is for general information only. The district's own documents set your special tax. Sources: Government Code 53311, 53321(d), 53341.5; Civil Code 1102.6b.