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630 Harvard Civil Rights-Civil Liberties Law Review [Vol. 53
As our back-of-the-envelope calculations demonstrate, someone who
purchases or has recently purchased a small home in coastal Northern Cali-
fornia might pay the equivalent of an additional 20% of their (already signif-
icant) mortgage payment to cover the additional property taxes they owe as
compared to a neighbor who purchased her property in 1980.
54
The large
premium is partly a product of the particularly low annual assessment
growth ceiling in California (2%). Yet even in the absence of a ceiling, Cali-
fornia’s formula would still produce significant disparities by tying assess-
ment growth to inflation (which has trailed real estate appreciation).
55
Second, and of particular demographic import, post-Proposition 13 con-
stitutional amendments assure that children and grandchildren largely do not
incur a reassessment when they inherit or purchase property from parents
and grandparents.
56
Third, many homeowners over the age of 55 can carry
53
Today, the market value of a typical California home purchased in 1980 is more than
twice its assessed value. L
EGISLATIVE
A
NALYST
’
S
O
FFICE
, C
OMMON
C
LAIMS
A
BOUT
P
ROPOSI-
TION
13, 4 (2016).
54
Imagine two identical cottages purchased in Marin County, CA in 1980 for $100,000
(nominal). They are unrenovated and have 2016 market values of $1,000,000 (for a helpful
graphic displaying Bay Area valuation changes from 1980 based on the Case-Shiller index, see
Blanca Torres, Bay Area Home Values, S.F. Chron. (June 24, 2014), https://www.bizjournals
.com/sanfrancisco/blog/real-estate/2014/06/bay-area-home-prices-san-francisco-case-shiller
.html#i1 [https://permacc/XR2F-NMZV]). The first remains owner-occupied and the value
assessment increases by an annual inflation factor, capped at 2%. See C
AL
. S
TATE
B
OARD OF
E
QUALIZATION
, F
INAL
I
NFLATION
F
ACTORS FOR
P
RIOR
Y
EARS
(2015), https://www.boe.ca.gov/
proptaxes/pdf/lta15055.pdf [https://permacc/TG5H-2EY9]. Utilizing these year-specific fac-
tors beginning in 1980-81 and ending with 2015-16, the value assessment in 2016 is $188,474.
The homeowner pays 1% of that amount for a $1,885 annual, or $157 monthly, property tax
payment. In contrast, the prospective or recently arrived homeowner for the neighboring cot-
tage will pay 1% of $1,000,000, for a $10,000 annual, or $833 monthly, payment.
Thus, the capped tax assessment leads the new neighbor to pay $676 per month more in
property taxes. If the prospective homeowner purchased the $1,000,000 home with a 20%
down payment and 30-year-mortgage remaining for the $800,000, their monthly mortgage
payment, at a 3.5% interest rate, will be approximately $3,600 per month. The additional
property taxes, as compared to the neighbor’s, comprise an additional 19% monthly payment
($676 on top of the $3,600), and of course the premium would not disappear once the mort-
gage was paid off.
To be technically precise, this exercise abstracts away from a narrow class of additional ad
valorem taxes permitted in California to finance bond indebtedness for particular municipal
improvements, which exist in Marin County. See C
AL
. C
ONST
. art. XIIIA, § 1(b)(2)-(3).
55
Continuing the example from note 57, even with no growth ceiling, the value assess-
ment would become $363,198. (The annual California inflation rate peaked at 17% during the
relevant period, though it was usually closer to two percent.) The homeowner pays 1% of that
amount for a $3,632 annual, or about $303 monthly, property tax payment. Here, the capped
tax assessment leads the new neighbor to pay $530 per month more in property taxes (as
compared to the $833 monthly payment by new owners). The additional property taxes, as
compared to the neighbor’s under Proposition 13, equate to an additional 15% monthly mort-
gage payment ($530 on top of the $3,600).
56
Proposition 58 (Nov. 1986) created the safe harbor for transactions between parents and
children, and Proposition 193 (March 1996) expanded it to cover grandparent-grandchild
transactions. These protections are limited to the recipient’s primary residence and an addi-
tional $1 million of property transfer. The resulting propositions are codified at C
AL
. C
ONST
.
art. XIIIA § 2(h). See also Exclusions from Re-appraisal (Propositions 58 and 193), C
AL
.
S
TATE
B
OARD OF
E
QUALIZATION
(2017), https://www.boe.ca.gov/proptaxes/faqs/proposi-
tions58.htm#1 [https://permacc/JQ7N-BRE8].