Conservatorship Bond Calculator
A conservatorship bond amount equals the estate’s personal property value, plus one year of expected income, plus annual public benefits the conservatee receives, plus a court-mandated recovery-cost buffer that runs 10-12% depending on estate size — and it doubles if you post the bond through personal sureties instead of a licensed surety company. Enter your three numbers below and the calculator runs all four steps for you.
Conservatorship Bond Penal-Sum Calculator
Enter the estate’s numbers below — the calculator applies the same formula a probate court uses.
Applies the exact statutory formula: personal property + annual income + public benefits + the Rule 7.207 recovery-cost tiers, doubled if you use a personal surety.
Cash, securities, and personal property the conservator can spend or liquidate. Real property the conservator can’t independently sell is usually excluded.
Rent, dividends, interest, and other income the estate is expected to collect over one year.
Benefits paid to the protected person that the conservator receives and manages — often overlooked, but courts count it as estate income.
Under § 2320(d), a bond backed by individual (non-admitted) sureties instead of a licensed surety company must be double the admitted-insurer amount.
Estimated Bond Amount
Already have Letters of Conservatorship with a court-set bond amount? Skip the estimate.
The Four-Part Formula Behind This Calculator
California codifies more of this math than any other state, which is why it’s the model this calculator is built on.
Conservator's Bond — Admitted Surety Insurer
Cal. Prob. Code § 2320(c) and Cal. Rules of Court, rule 7.207(b)
Official California Requirements
"The amount of the bond given by an admitted surety insurer shall be the sum of the value of the personal property of the estate, the probable annual gross income of all of the property of the estate, the probable annual gross payments described in paragraph (3), and a reasonable amount for the cost of recovery to collect on the bond, including attorney's fees and costs. If the bond is given by personal sureties, the amount of the bond shall be twice the amount required for a bond given by an admitted surety insurer."California Probate Code • Cal. Prob. Code § 2320(c)-(d)
Rule 7.207(b): The Recovery-Cost Buffer Tiers
Applied to the § 2320(c) subtotal (personal property + income + public benefits), not to the final bond amount
| Subtotal Band | Recovery-Cost Rate | How It Applies |
|---|---|---|
| $0 – $500,000 | 10% | Applied to the full amount in this band |
| $500,000 – $1,000,000 | 12% | Applied only to the portion above $500,000 |
| Above $1,000,000 | 2% | Applied only to the portion above $1,000,000 |
Cal. Rules of Court, rule 7.207(b), effective January 1, 2008 — implements Prob. Code § 2320(c)(4).
Real property is usually excluded
Houses and land the conservator can’t sell without a separate court order typically don’t count toward the personal-property figure — only assets the conservator can actually spend or liquidate feed into this calculator.
The doubling rule is easy to miss
Section 2320(d) doubles the entire bond — subtotal plus recovery buffer — for personal sureties. A $782,960 admitted-insurer bond becomes $1,565,920 with personal sureties. Toggle it in the calculator to see the gap.
Not Every State Codifies a Formula Like This
California is unusually specific. Most states leave the bond amount to the judge’s discretion within a much looser assets-plus-income framework.
California — codified formula
Cal. Prob. Code § 2320(c) spells out exactly what gets summed, and rule 7.207(b) spells out exactly what percentage gets added for recovery costs. There’s very little left to a judge’s discretion on the base number itself.
Nevada — pure judicial discretion
NRS 159.065 requires every guardian to file a bond “in such amount as the court determines is necessary for the protection of the ward and the estate of the ward” — no formula, no percentages, no statutory floor tied to assets or income at all.
For the full 51-jurisdiction breakdown of which states use a fixed multiplier, a discretionary figure, or no bond by default, see the probate bond cost by state guide.
What the Premium Costs Once the Bond Amount Is Set
The penal sum from the calculator above is fixed by the formula — the premium rate applied to it depends on the conservator’s personal credit. Here’s the range on a representative $500,000 bond.
Annual Premium on a $500,000 Conservatorship Bond
Based on a $500,000 bond amount
- Excellent (750+)Rate: 0.5%$2,500
- Good (700-749)Rate: 1%$5,000
- Fair (650-699)Rate: 2%$10,000
- Rebuilding (below 650)Rate: 3%$15,000
Rates reflect typical admitted-surety-insurer pricing on conservatorship and guardianship-of-the-estate bonds. Personal-surety bonds (doubled under § 2320(d)) are priced separately and usually cost more in total premium than the doubling alone suggests, since carriers treat them as higher-risk filings.
Calculator Questions
Why does the calculator ask about public benefits separately from income?
What is the Rule 7.207 recovery-cost buffer, and why isn't it a flat percentage?
Does choosing personal sureties actually save money once the doubling rule applies?
My state isn't California — how accurate is the 'other state' estimate?
Will the court accept this number, or can the judge order more?
How is this different from the general probate bond estimator?
Have Your Number? Get It Underwritten Before the Hearing.
Submit the estimate above and a producer pre-qualifies your credit now, so the bond is ready to issue the same day the court sets the final penal sum on your Letters of Conservatorship.
Go Deeper on Conservatorship & Probate Bonds
Conservatorship Bond Guide
Full requirements, the annual accounting cycle, and how bond amounts get revisited mid-case.
Probate Bond Cost Estimator
A 51-jurisdiction multiplier tool covering executor, administrator, guardian, conservator, and trustee bonds.
Probate Bond Calculator
A simpler estate-value-only calculator for a fast ballpark on any fiduciary role.
Executor Bond Calculator
Role-specific calculator for named executors and court-appointed administrators.
Probate Bond Cost by State
The full 51-jurisdiction table with statute citations, worked examples, and waiver rules.
Nevada Probate Bond
How NRS 159.065 discretion works in practice for Nevada guardianship-of-the-estate bonds.
California Probate Bond
California's broader probate bond rules under Prob. Code § 8482, the sibling statute to § 2320.
Guardianship Bond
Bonds for guardians of minors and, in non-conservatorship states, guardians of incapacitated adults.
All Bond Calculators
Every bond-cost calculator on the site, organized by bond type.

All content is researched from official state and federal sources (.gov) and verified before publication. BuySuretyBonds.com works with Treasury-certified, A-minimum rated surety carriers serving all 50 states.