In California these are three different costs that buyers constantly confuse. Property tax is roughly 1.1-1.25% of your home's assessed value each year, governed by Proposition 13. Mello-Roos is a separate special tax that repays bonds for community infrastructure like schools and roads. HOA dues are private fees paid to a homeowners association for shared maintenance. Three separate line items, three different rules.
Property tax under Proposition 13
California property tax is anchored by Proposition 13, passed in 1978. The base tax rate is 1% of a property's assessed value, and local voter-approved bonds and assessments push the effective rate to roughly 1.1-1.25% in most Ventura County communities as of 2026.
The defining feature of Prop 13 is the assessment limit. Your assessed value is generally set at the purchase price when you buy, and it can rise no more than 2% per year while you own the home — regardless of how much the market value climbs. When the property sells again, it is reassessed to the new purchase price. This is why a long-time neighbor can pay far less property tax than a buyer next door who just closed.
Property tax is a public tax. It funds schools, county services, and local government, and it is collected by the county.
Mello-Roos special tax
Mello-Roos refers to a special tax authorized by the Mello-Roos Community Facilities Act of 1982. When a new development needs infrastructure — schools, roads, parks, sewers — a Community Facilities District (CFD) can be formed to sell bonds that pay for it up front. The homeowners in that district then repay those bonds through an annual Mello-Roos tax.
Key facts buyers should know: Mello-Roos is most common in newer subdivisions built since the 1980s. The tax is not based on Prop 13 percentages — it is a fixed or formula amount set by the district, and it can be substantial, often hundreds to a few thousand dollars per year. It usually has an end date, because bonds are eventually paid off, though that date can be decades out. Sellers must disclose Mello-Roos to buyers as part of the California disclosure package.
HOA dues
Homeowners association dues are entirely different in nature: they are private, not governmental. If you buy in a planned development, condo project, or gated community, you pay dues to the HOA — a private corporation run by and for the owners.
HOA dues fund shared maintenance and amenities: landscaping of common areas, exterior building maintenance in condos, community pools, gates, insurance for common property, and a reserve fund for future repairs. Dues are set by the HOA board and can be raised, and the association can also levy special assessments for large unexpected expenses. When you buy into an HOA, you receive the HOA documents — budget, reserves, rules, and meeting minutes — and you should read them carefully.
Side-by-side comparison
Here is how the three costs line up:
| Feature | Property Tax | Mello-Roos | HOA Dues |
|---|---|---|---|
| Type | Public tax | Public special tax | Private fee |
| Set by | Prop 13 (1% + local) | Community Facilities District | HOA board |
| Based on | Assessed value | Fixed/formula amount | HOA budget |
| Has an end date? | No | Usually yes (bond payoff) | No |
| Typical use | Schools, county services | Development infrastructure | Common-area maintenance |
| Generally tax-deductible? | Often | Often not | No |
How each appears on your bill
Property tax and Mello-Roos both arrive on your annual county property tax bill, paid in two installments. The base 1% tax appears as the main line; Mello-Roos and other special assessments are listed separately, often under "direct assessments" or by district name. If you have an impound (escrow) account with your lender, the lender pays this bill from your monthly payment.
HOA dues are billed separately by the association — usually monthly — and you pay them directly to the HOA or its management company. They never appear on the county tax bill. This is why it is easy to overlook HOA dues when estimating monthly costs: nothing about the county tax bill reminds you they exist.
Deductibility and how each affects your loan
On the tax side, the base property tax is often deductible for those who itemize, subject to the federal SALT cap. Mello-Roos is frequently treated differently — portions tied to bond repayment for specific local benefits may not be deductible. HOA dues on a personal residence are not deductible at all. This is general information, not tax advice — confirm your situation with a CPA.
For loan qualification, the distinction matters a great deal. Lenders count all three — property tax, Mello-Roos, and HOA dues — as part of your monthly housing expense when calculating your debt-to-income ratio. A home with a $300 monthly HOA and a $2,000 annual Mello-Roos tax carries a meaningfully higher qualifying payment than an identically priced home with neither. Two homes at the same list price can require very different incomes to qualify.
What I tell buyers comparing communities
When clients tour two neighborhoods, I always build out the true monthly cost for each, side by side. A newer Mello-Roos community might have lower-priced homes but a $200-a-month special tax; an older neighborhood may have no Mello-Roos and no HOA at all, but higher prices. Neither is automatically better — it depends on your budget and what you value.
What I will not let a buyer do is get surprised. Before you fall in love with a home, you should know exactly what the property tax, Mello-Roos, and HOA add up to, whether the Mello-Roos has an end date, and how healthy the HOA's reserves are. Get those three numbers in front of you early, and you can compare communities honestly.
Frequently Asked Questions
What is the difference between Mello-Roos and property tax?
Property tax is the Prop 13 tax of about 1.1-1.25% of assessed value funding general public services. Mello-Roos is a separate special tax, set as a fixed or formula amount, that repays bonds for a specific development's infrastructure.
Is Mello-Roos the same as an HOA?
No. Mello-Roos is a public special tax collected on your county property tax bill. HOA dues are private fees paid to a homeowners association for shared maintenance and amenities, billed separately.
Does Mello-Roos ever go away?
Usually yes. Mello-Roos taxes typically have an end date tied to when the underlying bonds are paid off, though that can be decades after the community was built. Always check the remaining term for a specific home.
Do HOA dues and Mello-Roos affect my mortgage qualification?
Yes. Lenders include property tax, Mello-Roos, and HOA dues in your monthly housing expense when calculating your debt-to-income ratio, so they directly affect how much home you qualify for.
Is Mello-Roos tax deductible?
Often not. Portions of Mello-Roos tied to bond repayment for specific local benefits are frequently not deductible, unlike the base property tax. Confirm your specific situation with a CPA.
