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HomeEducation CodeCh. 1Art. 1§ 11 Assessed Value Calculation Rules

§ 11 Assessed Value Calculation Rules

Education Code·California
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AI SummaryVerified

§ 11 Assessed Value Calculation Rules

This law tells you how to compare property tax numbers when the way the value is measured changed in 1981‑82, and it gives a simple way to switch between the old dollar‑per‑$100 method and the newer percent‑of‑full‑value method.

Key Takeaways

  • •Before 1981‑82 the law used only 25 % of a property's full value to calculate tax; after that it used the full value.
  • •When you need to compare old and new tax numbers, multiply the old dollar‑per‑$100 rate by 0.0025 to get the same‑basis percent rate.
  • •To go the other way, multiply the percent‑of‑full‑value rate by 400 to get the old dollar‑per‑$100 rate.

Example

A homeowner had a house worth $200,000 in 1980‑81. The town charged $2 for every $100 of assessed value. In 1982‑83 the town switched to charging 0.8 % of the full value. How do we know the two rates are the same?

First we turn the old $2 per $100 (which used a 25 % assessment) into a percent of full value using the conversion factor from the law. The result matches the new 0.8 % rate, so the homeowner pays the same amount each year.

How to Calculate

Old‑rate (dollars per $100 assessed) × 0.0025 = New‑rate (percent of full value) New‑rate (percent of full value) × 400 = Old‑rate (dollars per $100 assessed)

  1. Identify which way you are converting (old → new or new → old).
  2. Use the correct factor – 0.0025 (twenty‑five hundredths of 1 %) for old → new, or 400 for new → old.
  3. Multiply the number you have by the factor to get the comparable rate.

Convert the 1980‑81 rate of $2 per $100 assessed to a percent of full value.

Result: 2 × 0.0025 = 0.005, or 0.5 % of full value. (If the town later used 0.5 % of full value, the two rates are equivalent.)

AI-generated — May contain errors. Not legal advice. Always verify source.

Official Source
View on CA.gov

§ 11 Assessed Value Calculation Rules

(a) For purposes of this code, “assessed value” means 25 percent of full value to, and including, the 1980–81 fiscal year, and 100 percent of full value for the 1981–82 fiscal year and fiscal years thereafter; and, tax rates shall be expressed in dollars, or fractions thereof, on each one hundred dollars ($100) of assessed value to, and including, the 1980–81 fiscal year and as a percentage of full value for the 1981–82 fiscal year and fiscal years thereafter. (b) Whenever this code requires comparison of assessed values, tax rates or property tax revenues for different years, the assessment ratios and tax rates shall be adjusted as necessary so that the comparisons are made on the same basis, and the same amount of tax revenues would be produced, or the same relative value of an exemption or subvention will be realized regardless of the method of expressing tax rates or the assessment ratio utilized. (c) For purposes of expressing tax rates on the same basis, a tax rate based on a 25 percent assessment ratio and expressed in dollars, or fractions thereof, for each one hundred dollars ($100) of assessed value may be multiplied by a conversion factor of twenty-five hundredths of 1 percent to determine a rate comparable to a rate expressed as a percentage of full value; and, a rate expressed as a percentage of full value may be multiplied by a factor of 400 to determine a rate comparable to a rate expressed in dollars, or fractions thereof, for each one hundred dollars ($100) of assessed value and based on a 25 percent assessment ratio. (Added by Stats. 1978, Ch. 1207.)

Last verified: January 10, 2026

Key Terms

assessed valuetax ratesfull valueassessment ratios

Related Statutes

  • § 15103 Bond Limits Property Valuation
  • § 1 Education Code Title
  • § 10 Code Construction Rules
  • § 1000 County Education Board Composition
  • § 10000 Personnel Exchange Agreements

References

  • Official text at leginfo.legislature.ca.gov
  • California Legislature. Education Code. Section 11.
View Official Source