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What Is Mello-Roos? A San Marcos Homeowner Guide

January 1, 2026

Seeing an unfamiliar “CFD” or “Special Tax” on a San Marcos property tax bill can raise questions fast. If you are buying or selling, you want to know what Mello-Roos means for your monthly payment, loan qualifying, and resale value. In this guide, you will learn exactly what Mello-Roos is, how to verify it on a San Diego County tax bill, how it impacts your budget, and practical strategies to use in negotiations. Let’s dive in.

Mello-Roos basics

Mello-Roos is the common name for California’s Community Facilities Act of 1982. It lets cities, counties, and special districts create Community Facilities Districts, called CFDs, and levy a parcel-based special tax to fund public improvements or services.

CFDs are often formed for newer subdivisions where added roads, parks, schools, or utilities need financing. The special tax is a lien on the property, not a personal obligation, and it is collected on the county’s secured property tax bill.

CFD taxes follow a formula set when the district is formed. Rates can be flat per parcel, tied to unit type, based on acreage or square footage, or a mix. Many include scheduled increases using CPI or fixed annual steps.

Some CFDs issue bonds to fund projects, with the special tax repaying those bonds over time. Others fund ongoing services like landscaping or public safety. Bond-backed taxes usually end when the bonds are fully repaid, while service-related taxes can continue.

Where it shows on your bill

On San Diego County secured property tax bills, Mello-Roos appears on its own line or block. You may see labels like “Special Tax,” “Community Facilities District,” “CFD,” or a specific district name. The line shows the current year’s amount and may reflect how it supports bond payments.

To confirm a property’s CFD status, use multiple sources. MLS often shows a Mello-Roos or Special Assessments field, but you should not rely on it alone. Always cross-check with official documents and county records.

How to verify for a San Marcos home

  • Review the current San Diego County secured property tax bill for the parcel.
  • Ask the seller for the most recent tax bill and any CFD notices.
  • Request the preliminary title report and tax service page from escrow or the title company.
  • Contact the San Diego County Treasurer-Tax Collector and Assessor if you need parcel-level confirmation.
  • Check City of San Marcos resources and the issuing agency for CFD maps, formation documents, and rate schedules.

Documents that give clear answers

  • CFD formation resolution and the official rate and schedule.
  • The most recent secured property tax bill.
  • The Notice of Special Tax or annual CFD tax roll, if published.
  • The preliminary title report listing assessments and liens.
  • HOA disclosures and budget, if services overlap.

Cost and your monthly payment

Mello-Roos is part of your annual property tax, so lenders include it in your monthly escrow. This increases your PITI and can affect what you qualify to borrow.

  • Hypothetical example: If a CFD special tax is $2,400 per year, that adds about $200 per month to your payment. This is only an example; always use the exact amount from the tax bill or rate schedule.
  • Underwriting includes Mello-Roos in housing expenses. If your debt-to-income ratio is tight, a higher special tax can reduce your purchasing power.

Easy modeling steps

  1. Get the current annual special tax amount for the parcel.
  2. Convert to monthly: annual amount divided by 12.
  3. Add the monthly amount to your principal, interest, homeowners insurance, and other taxes for a full payment estimate.
  4. Share the exact figure with your lender so they can run DTI with accuracy.
  5. Check escalation rules and project 5- and 10-year costs.
  6. For bond-backed CFDs, note the remaining term and potential end date.
  • Sensitivity example: If the tax is $1,800 per year, that adds $150 per month and $1,800 to your annual housing costs. You can use this method to compare homes with different CFD amounts.

Escalations and end dates

Escalation rules are set by the CFD and may use CPI, a fixed percentage, or a fixed dollar increase. The formation documents and rate schedule explain how much and how often your tax can rise.

Bond-backed CFD taxes usually end when the bonds mature and are repaid. Service-based CFD taxes can continue as long as the services are provided. Always verify the structure, escalation limits, and any stated end date in the official documents.

Resale and marketability

Recurring special taxes can influence buyer demand. Some buyers compare two similar homes and prefer the one with lower ongoing costs. When pricing or making offers, compare homes with similar CFD obligations so you are evaluating apples to apples.

Appraisers and buyers weigh recurring costs in value. If the local comps with Mello-Roos sell differently than non-CFD homes, the market is signaling how it prices that ongoing obligation.

Buyer strategies

Get the numbers early and build them into your plan. Clear information helps you avoid surprises during loan approval and keeps your offer competitive.

  • Verify the exact annual amount and escalation rules before you write an offer.
  • Have your lender run DTI with the confirmed CFD tax.
  • Compare concessions: price reduction, seller credit, or rate buydown. Each affects your monthly payment differently.
  • Consider a short-term concession where the seller pays a portion of the Mello-Roos for the first year.
  • Use present value logic to justify concessions, for example showing the value of 3 to 5 years of the special tax.

Coordinate with your lender and provide documentation to the appraiser. Matching comps with similar CFD structures improves appraisal clarity.

Seller strategies

Disclose early and clearly. Buyers appreciate transparency, and it reduces the risk of delays.

  • Provide the most recent tax bill, the CFD rate schedule, and any end date if bond-backed.
  • Prepare a one-page summary with the current annual cost and escalation rules.
  • Price using comps that carry similar CFD obligations.
  • If direct comps are limited, consider a price adjustment or a buyer credit at closing to offset the recurring tax.

Marketing clarity builds trust. A factual breakdown helps buyers compare your home with confidence.

San Marcos checklist

Use this quick list to keep your transaction on track.

  • Current secured property tax bill
  • CFD formation resolution and official rate schedule
  • Preliminary title report and tax service page
  • HOA budget and disclosures, if applicable
  • City of San Marcos CFD maps and issuer contacts
  • County Assessor, Treasurer-Tax Collector, and Recorder checks as needed

Key questions to answer:

  • What is the exact annual amount for this parcel?
  • Is the tax tied to bond repayment or ongoing services?
  • What is the escalation formula and annual cap?
  • Is there a stated end date or bond maturity?
  • How is it collected and when is it due on the county bill?
  • Have there been adjustments, refunds, or supplemental levies?
  • How do comps with similar CFDs sell versus non-CFD homes?

Client-ready language

  • “This home is in a Community Facilities District, commonly called Mello-Roos. The current special tax is $X per year and appears on the county tax bill. I will pull the CFD rate schedule so we can model the monthly impact and any increases before you write an offer.”
  • “Because this special tax is part of your housing payment, it can affect loan qualifying. I will coordinate with your lender to run the exact debt-to-income calculation.”

Get local help

You do not have to decode CFD documents alone. With long-standing experience in San Diego County and sharp negotiation strategies, I can help you verify the right numbers, model your monthly costs, and structure a smart pricing or offer plan.

Ready to compare homes or prepare your listing with clarity around Mello-Roos? Connect with Donna Seals for step-by-step guidance and a complimentary home valuation.

FAQs

What is Mello-Roos in San Marcos?

  • It is a parcel-based special tax created by a Community Facilities District to fund public improvements or services, collected on the county secured property tax bill.

How do I see Mello-Roos on my tax bill?

  • Look for a separate line labeled “Special Tax,” “Community Facilities District,” “CFD,” or a district name on your San Diego County secured property tax bill.

How does Mello-Roos affect mortgage qualifying?

  • Lenders include the special tax in housing expenses, which can raise your monthly payment and may reduce your qualifying loan amount if your debt-to-income ratio is tight.

Will my Mello-Roos end at some point?

  • Bond-backed CFD taxes typically end when the bonds mature, while service-based CFD taxes can continue; check the CFD formation documents and rate schedule for specifics.

Can I prepay or buy out Mello-Roos?

  • Prepayment options vary by district; review the CFD formation documents and contact the issuing agency to learn whether prepayment is allowed for your parcel.

Is Mello-Roos tax-deductible on my return?

  • Deductibility depends on how the assessment is characterized and your overall tax situation; consult a qualified tax advisor for personalized guidance.

How should I compare two homes, one with and one without Mello-Roos?

  • Model the exact annual amount, convert it to a monthly cost, check escalation rules, and weigh price reductions or credits to offset the recurring expense.

Do HOAs and Mello-Roos cover the same things?

  • They are separate; some services may overlap, so review HOA budgets and CFD documents to understand what each funds and your total monthly and annual obligations.

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