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Understanding Supplemental Tax Bills After Buying In Marina Woods

October 16, 2025

Buying in Marina Woods is exciting, but that first year of homeownership can come with a surprise: a supplemental property tax bill. If you have never heard of it, you are not alone. Many buyers expect their lender to handle everything, only to find an extra county bill arriving later. This guide explains what it is, when it shows up, how it is calculated, and the simple steps to stay ahead of it. Let’s dive in.

What a supplemental bill is

A supplemental tax bill is an extra, prorated property tax bill that results when the county reappraises your home after a change in ownership or completion of new construction. State law sets this reassessment on your closing date, which becomes your new base year value date. The bill is based on the difference between your new taxable value and the prior taxable value. It is in addition to your regular annual tax bill and does not replace it. California Revenue and Taxation Code and El Dorado County explain this process.

When to expect it

After closing, the Assessor mails a Notice of Supplemental Assessment. The county can bill supplemental taxes at least 30 days after that notice. Timing varies by workload and season, so watch your mail. You will still receive your regular annual bill on the normal schedule. See the county’s guidance and estimator tool on the Supplemental Taxes page.

Two bills from January to May

If you close between January 1 and May 31, you may receive two supplemental bills. One covers the remainder of the current fiscal year and the second adjusts the next fiscal year. This is set by state law and is common for winter and spring closings. Review the two-bill rule in RTC section 75.11.

How the tax is calculated

The basic formula is: (new taxable value minus prior taxable value) times the applicable tax rate times the months remaining in the fiscal year divided by 12. El Dorado County prorates based on full months remaining in the fiscal year that runs July 1 to June 30. The county notes that voter-approved special taxes and direct charges that apply to your parcel can be included. You can review parcel details with the Assessor’s Property Information resources.

A quick example

Say you bought in September. If your market value at purchase is 250,000 and the prior assessed value was 200,000, the difference is 50,000. With a combined tax rate around 1.08 percent and a 9 of 12 month proration, the supplemental tax would be about 50,000 × 1.08 percent × 9/12 = 405. This mirrors the county’s example on its Assessor pages.

Who gets the bill and who pays

Supplemental bills are mailed to you as the property owner. They are not automatically sent to your lender or paid from your impound account. If you want your lender to pay it, you must contact them and arrange it. The Treasurer-Tax Collector explains this in the county’s Property Tax FAQs.

Escrow and proration tips

Supplemental taxes are not necessarily prorated in escrow. Address responsibility for any future supplemental bills in your purchase agreement and escrow instructions. If the property sells again before the supplemental bill is finalized, proration among owners may be needed, and you should notify the Auditor’s office. See the county’s Supplemental Taxes page for guidance.

Buyer checklist for Marina Woods

  • Confirm in escrow who will be responsible for any supplemental taxes tied to your purchase. The county notes these bills may not be prorated automatically in escrow. Review the Property Tax FAQs.
  • Ask title or escrow to review the parcel’s tax history and any parcel-specific direct charges. Use the Assessor’s Property Information tools.
  • Contact your lender to see if they will accept and pay the supplemental bill through your impound account.
  • Estimate your liability early using the county’s Supplemental Tax Estimator.
  • Watch for the Notice of Supplemental Assessment and act quickly on any exemptions or appeals.

Exemptions, appeals, and deadlines

If you qualify for the homeowner’s exemption and it has not already been applied, you can typically claim it on the supplemental assessment. File the exemption with the Assessor within 30 days of the Notice of Supplemental Assessment mailing date. See the Assessor’s Property Information page for forms and steps.

If you disagree with the supplemental value, you can file a formal appeal. The general deadline is 60 days from the mailing date printed on the supplemental assessment notice, or within 60 days of the supplemental tax bill if no notice was received. Pay your bill on time while appealing to avoid penalties. The State Board of Equalization outlines these timelines in its assessment appeals FAQs and the county provides Assessment Appeals resources.

If an adjustment or appeal results in overpayment, the county processes refunds or corrections. Each supplemental bill has its own delinquency date, so rely on the dates printed on your bill. Late payment can trigger penalties and interest. Refer to the county’s Property Tax FAQs.

Marina Woods parcel notes

Marina Woods includes a variety of homes and tax-rate areas. Parcel-specific charges, such as special assessments and direct charges, vary by property. Do not assume there are no additional levies. Verify your parcel’s details using the Assessor’s Property Information tools and any prior tax bills.

Final thoughts

A supplemental bill is normal after you buy in Marina Woods, and a little planning goes a long way. Estimate your amount, set expectations in escrow, and watch for your notice so you can act on exemptions or appeals. If you are closing between January and May, budget for the possibility of two bills. For a calm, well-prepared first year of ownership, take the steps above and keep county resources close.

If you are planning a move in or around El Dorado Hills and want clear guidance at every step, reach out to Sankaran and Associates, Inc for a concierge real estate experience tailored to your goals.

FAQs

What is a supplemental tax bill after buying a home?

  • It is a prorated, additional property tax bill that reflects the difference between your new assessed value on the purchase date and the prior assessed value, in addition to your regular annual bill. See RTC section 75.10 and the county’s Supplemental Taxes page.

When will I receive my Marina Woods supplemental bill?

  • Expect a Notice of Supplemental Assessment after closing, then a bill at least 30 days later. Timing varies, so monitor your mail and the county’s Supplemental Taxes page.

Why did I get two supplemental bills for my purchase?

  • Closings between January 1 and May 31 can trigger two supplemental assessments, one for the current fiscal year and one for the next, per RTC section 75.11.

Will my lender pay the supplemental bill automatically?

  • No. The county mails the bill to you, not your lender. If you want it paid from your impound account, contact your lender. See the Property Tax FAQs.

How can I estimate my Marina Woods supplemental tax amount?

Can I appeal my supplemental assessment if I disagree with the value?

  • Yes. File within 60 days of the notice mailing date or the bill if no notice was received. Pay on time while the appeal is pending. See the BOE assessment appeals FAQs and the county’s Appeals resources.

Do supplemental bills include Mello Roos or other charges?

  • They can include eligible voter-approved special taxes and direct charges that apply to your parcel. Verify your parcel’s tax-rate area and current roll using the Assessor’s Property Information.

What happens if I sell again before the supplemental bill is issued?

  • Proration among owners may be required. Notify the Auditor’s office so they can adjust billing appropriately. See the county’s Supplemental Taxes page.

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