Appeal vs Do nothing: expected net present value of a property tax appeal in Los Angeles County, CA ($842,030 assessed, $732,200 market value)
Do nothing beats Appeal in Los Angeles County, CA: the expected net present value of an appeal is -$94.69 against $0.00 for Do nothing, a margin of $94.69, for a $842,030 assessment on a $732,200 single-family home. If the appeal succeeds it is worth $363.28 in present value after a $400.00 filing cost; at a 40% success probability the expected net present value is -$94.69.
What is compared
Appeal and Do nothing are scored on the same property inputs from one live Tavirex response. The score is expected net present value in dollars, measured against Do nothing at $0.00. Do nothing leads on expected net present value: Appeal -$94.69, Do nothing $0.00. The Tavirex recommendation for this property is Appeal, because its rule counts the $363.28 net present value if the appeal succeeds, while this comparison ranks the probability-weighted value of -$94.69. Both figures are in dollars; the ranking in this comparison is the expected net present value.
The property used
This is a scenario, not a listing: the Los Angeles County, CA median home value of $732,200 and median household income of $83,411 from the Tavirex county table, a 7 mill rate converted from the county effective tax rate, and a $842,030 assessment. Tavirex applied these exemptions: none.
Defaults behind the numbers
Tavirex reference defaults applied: 40% appeal success probability, $400.00 filing cost, 4.25% discount rate, 3.5% tax inflation and a 1 year horizon, which is the state reassessment cycle. These are reference-table values, not estimates for any one property.
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Calculation provenance
Both columns come from one live Tavirex full-analysis response for the same property inputs. Net present value is measured against doing nothing, so Do nothing is the zero baseline by definition. The appeal success probability, filing cost, discount rate, tax inflation rate and horizon are Tavirex reference-table defaults named in the calculation record, not estimates for this property. The horizon is the state reassessment cycle. Sample size UNAVAILABLE. Read how Tavirex makes these numbers. Response hashes and retrieval times are retained separately in the calculation record.
Calculation data
| Input | Value |
|---|---|
| state | CA |
| county | Los Angeles County |
| county_fips | 06037 |
| property_type | single_family |
| market_value | 732200 |
| assessed_value | 842030 |
| mill_rate | 7 |
| exemptions | none |
| household_income | 83411 |
| Measure | Appeal | Do nothing |
|---|---|---|
| Current annual property tax (USD) | 5,894.21 | 5,894.21 |
| Annual tax savings if it works (USD) | 768.81 | 0.00 |
| Filing cost (USD) | 400.00 | 0.00 |
| Net present value if it works (USD) | 363.28 | 0.00 |
| Expected net present value (USD) | -94.69 | 0.00 |
| Distance from winning value (USD) | 94.69 | 0.00 |
| Decision | Alternative value | Winning value |
Winner: Do nothing. Objective: maximize. Margin to next option: 94.69 USD. Assumption: Highest expected net present value only, with Do nothing as the zero baseline. The Tavirex recommendation is reported separately and does not decide the winner.
- winner
- do-nothing
- objective
- maximize
- metric
- expectedNpv
- api Recommendation
- appeal
Source and assumptions
- Both columns come from one live Tavirex full-analysis response for the same property inputs. Net present value is measured against doing nothing, so Do nothing is the zero baseline by definition.
- The ranking objective is the highest expected net present value: the present value of the tax savings if the appeal succeeds, weighted by the appeal success probability, less the filing cost. It does not predict the outcome of any single appeal.
- The appeal success probability, filing cost, discount rate, tax inflation rate and horizon are Tavirex reference-table defaults named in the calculation record, not estimates for this property. The horizon is the state reassessment cycle.
- The property inputs are a scenario, not a listing: the county median home value and median household income from the Tavirex county table, the county effective tax rate converted to a mill rate for the state assessment ratio, and an assessment above the state target. They describe no individual property.
- Do nothing assumes the assessment stands. No other path (an informal review, an attorney, an exemption change) is compared. Filing rules and deadlines vary by jurisdiction; confirm them with the local assessor. This is not tax or legal advice.
Appeal. Data layer: Tavirex reference tables (assessment ratios, reassessment cycles, exemptions, appeal defaults, configuration defaults). Source: Tavirex full-analysis API; each parameter names its reference-table row in the response. Vintage: Oldest reference table fetched 2026-10-04. Sample size: UNAVAILABLE.
Fetched: 2026-10-10T18:30:06.840Z
Source updated: Oldest reference table fetched 2026-10-04T07:46:14.041Z
Cache: Unreported
Response SHA-256
fe2d9e9d0c9fdf1bceee6994d306d3978b3262a60636df5af4602108f7b77298Do nothing. Data layer: Tavirex reference tables (assessment ratios, reassessment cycles, exemptions, appeal defaults, configuration defaults). Source: Tavirex full-analysis API; each parameter names its reference-table row in the response. Vintage: Oldest reference table fetched 2026-10-04. Sample size: UNAVAILABLE.
Fetched: 2026-10-10T18:30:06.840Z
Source updated: Oldest reference table fetched 2026-10-04T07:46:14.041Z
Cache: Unreported
Response SHA-256
fe2d9e9d0c9fdf1bceee6994d306d3978b3262a60636df5af4602108f7b77298Questions about this comparison
Should I choose Appeal or Do nothing on this Los Angeles County, CA assessment, by expected net present value?
Do nothing beats Appeal in Los Angeles County, CA: the expected net present value of an appeal is -$94.69 against $0.00 for Do nothing, a margin of $94.69, for a $842,030 assessment on a $732,200 single-family home. If the appeal succeeds it is worth $363.28 in present value after a $400.00 filing cost; at a 40% success probability the expected net present value is -$94.69.
What does Appeal cost, and what does it save if it works, compared with Do nothing?
Do nothing leads on expected net present value, in dollars. Appeal costs $400.00 to file and saves $768.81 a year if it works, worth $363.28 in net present value over 1 year; Do nothing costs $0.00 and saves $0.00. The current annual property tax is $5,894.21.
Does the Tavirex appeal recommendation match the expected net present value ranking?
Do nothing leads on expected net present value: Appeal -$94.69, Do nothing $0.00. The Tavirex recommendation for this property is Appeal, because its rule counts the $363.28 net present value if the appeal succeeds, while this comparison ranks the probability-weighted value of -$94.69. Both figures are in dollars; the ranking in this comparison is the expected net present value.
What inputs and data sit behind this Appeal vs Do nothing comparison?
Appeal and Do nothing come from one live Tavirex response for a $732,200 single-family home in Los Angeles County, CA with a $842,030 assessment, 7 mills and a $83,411 household income, ranked by expected net present value in dollars (Do nothing wins). Defaults: 40% success probability, $400.00 filing cost, 4.25% discount rate, 3.5% tax inflation, 1 year horizon.