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Last updated: General probate bond amount information — confirm current requirements with the licensing authority.

How Courts Set Probate Bond Amounts — The Formula

The probate judge does not pick a number. Almost every state runs the bond through the same two-input formula: the estimated value of the estate’s personal property, plus the probable income that property will earn over the next year. California adds a real-property component when independent administration authority is granted, and doubles the whole figure if the fiduciary uses individual sureties instead of a bonding company (Cal. Prob. Code § 8482). Texas and the Uniform Probate Code states run the identical property-plus-income math without any doubling — they just disagree on who does the calculating.

Quick answer
The probate judge does not pick a number. Almost every state sets the bond from the estimated value of the estate's personal property plus the probable income that property will earn over the next year. California adds real property when independent administration authority is granted and doubles the total if individual sureties are used instead of a bonding company.
  • Who requires it: The probate court, under the state's statute (for example Cal. Prob. Code § 8482). Texas and the Uniform Probate Code states use the same property-plus-income math without any doubling.
  • Amount: Personal property + 1 year of estimated income = bond amount. Example from the page: $500,000 personal property + $40,000 annual income = $540,000.
  • Fourteen states, including California, Texas and Illinois, let qualifying estates skip both the bond and the calculation through a small-estate affidavit or summary process.
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This page breaks down that formula jurisdiction by jurisdiction, walks through three real estate sizes so you can see the arithmetic, and covers the two levers that actually move the number after the case is open: restricted accounts and court petitions.

None of this formula applies if the estate never opens full probate. Fourteen states — including California, Texas, and Illinois — let qualifying estates skip both the bond and the calculation entirely through a small-estate affidavit or summary process; see our small estate bonds vs. affidavits threshold matrix to check whether your estate qualifies before running these numbers.

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Official California Requirements

"The court in its discretion may fix the amount of the bond, but the amount of the bond shall be not more than the sum of: (1) The estimated value of the personal property. (2) The probable annual gross income of the estate. (3) If independent administration is granted as to real property, the estimated value of the decedent's interest in the real property. ... If the bond is given by personal sureties, the amount of the bond shall be twice the amount fixed by the court under subdivision (a)."
California Probate Code, Article 5 — Bond • Cal. Prob. Code § 8482(a), (c)
Worked examples

Three Estates, Run Through Every Formula

The same estate produces three different bond figures depending on which state’s formula applies to it. These use the same personal-property and income figures across all three jurisdictions so you can see exactly where the numbers diverge.

Modest Estate — Bank Accounts & Personal Effects

$150,000 personal property · $3,000 estimated annual income

California (corporate surety)

$153,000

$150,000 + $3,000. Doubles to $306,000 with personal sureties (§ 8482(c)).

Texas (dependent administration)

$153,000

Same math, undoubled. Often $0 if the will names an independent executor and waives bond (§ 305.101(b)).

UPC state (self-reported)

$153,000

Sworn estimate filed with the registrar, not less than this figure. No doubling.

Mid-Size Estate — Includes a Rental Property

$500,000 personal property · $40,000 rental income · $350,000 real property interest

California (IAEA granted)

$890,000

$500,000 + $40,000 + $350,000 real property. Doubles to $1,780,000 with personal sureties.

Texas

$540,000

$500,000 + $40,000. The $350,000 property value itself never enters the math — only its rent does.

UPC state (e.g., Michigan, Nebraska)

$540,000

Same as Texas — income counted, property value excluded. Arizona is the exception (counts net real estate value too).

This is the widest gap on the page: identical estate, $350,000 difference in required bond, purely because California treats real property as principal when independent administration is granted and the others don’t.

Complex Estate — Business Interests, No Real Property

$2,000,000 personal property (business interests, brokerage) · $180,000 estimated annual income

California (corporate surety)

$2,180,000

$2,000,000 + $180,000. Doubles to $4,360,000 if personal sureties stand in for a bonding company.

Texas (independent executor)

$0*

*If the will waives bond under § 305.101(b) — the most common route for a will-named executor. Dependent administration would owe the full $2,180,000.

UPC state (self-reported)

$2,180,000

Sworn estimate — but a $10,000+ interested party can demand this bond even over a waiver (§ 3-605).

Higher-value estates make waivers and multiplier differences matter far more in dollar terms than in the modest-estate example above — a formula difference that’s a rounding error on a $150,000 estate becomes a six-figure premium swing here.

Figures are illustrative applications of the cited statutory formulas, not carrier quotes. The probate judge (or registrar, in UPC states) sets the controlling number for your actual case.

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Lowering the number

Three Ways to Reduce a Bond Without Eliminating It

A full waiver eliminates the bond entirely (covered in our probate bond waiver guide). These three levers instead shrink the calculated number while the bond stays in place.

Restrict (Block) the Account

Deposit cash or securities into a court-restricted account that the fiduciary cannot withdraw from without a judge’s order. California excludes or reduces those restricted assets on the personal-property side of the formula on production of the deposit receipt (Cal. Prob. Code § 8483). Texas runs the same trade proportionally through § 305.153(b) and § 305.155. See our blocked account vs. bond guide for the full receipt-filing workflow, the hybrid partial-block strategy, and the unwind.

Use a Corporate Surety, Not Personal Sureties

California-specific, but decisive there: if the fiduciary asks two individuals to personally guarantee the bond instead of purchasing one from a licensed surety insurer, the amount doubles under § 8482(c). Buying a bond from a Treasury-listed surety instead keeps the figure at the base, undoubled amount.

Decline Independent Real-Property Authority

In California, the real-property add-on under § 8482(a)(3) only applies if the fiduciary is granted independent administration authority (IAEA) over real property. If that authority isn’t requested — leaving real-estate sales subject to court confirmation instead — the property’s value never enters the bond formula, at the cost of slower court-confirmed sales later.

After the case is open

The Bond Amount Isn’t Fixed for the Life of the Case

Every jurisdiction on this page lets someone revisit the number after the estate is open — the trigger and the paperwork differ.

Increase Triggers

  • Texas: estate property is sold or rented, money is borrowed against estate assets, or a mineral lease is authorized — and the existing bond is found insufficient to cover it (Tex. Est. Code § 305.160).
  • UPC states: any interested person or creditor with a stake over the statutory threshold can file a written demand forcing a bond review, even over an earlier waiver (e.g., N.M. Stat. § 45-3-605; base text Unif. Probate Code § 3-605, $10,000) — the threshold varies by adopting state: New Mexico sets it at $7,500, Michigan at $30,000 (MCL § 700.3605).
  • California: the judge retains ongoing discretion under § 8482 generally, exercised on petition or the court’s own motion as new assets or income sources surface.

Decrease Petitions

  • California: the fiduciary petitions to reduce the bond with an affidavit describing the estate’s condition; the court sets a hearing on notice (Cal. Prob. Code § 8484).
  • Texas: the judge must reduce the bond proportionally when cash, securities, or other assets are deposited by court order or voluntarily (Tex. Est. Code § 305.153(b)).
  • UPC states: no standing statutory reduction mechanism — the fiduciary petitions the registrar or court directly as assets are distributed or restricted, following the same demand-and- review process used to increase bond.

Most reductions happen after a partial distribution, the sale of real estate, or the close of the first annual accounting — not automatically. See our probate bond cost by state guide for how premium is billed against the current bond figure as it changes, and our discharge checklist for what actually ends the bond and stops renewal billing.

Frequently Asked Questions

Does the bond amount include real estate the executor is authorized to sell?

It depends on the state, and this is the single biggest formula difference on this page. California adds the value of the decedent’s real property interest to the bond — but only if independent administration authority (IAEA) was granted over that property (Cal. Prob. Code § 8482(a)(3)). Texas and the base Uniform Probate Code formula never add the real property’s value — they only count the rental income or other revenue that real property produces during the coming year (Tex. Est. Code § 305.152(3); Unif. Probate Code § 3-604). So the identical rental duplex can add $350,000 to a California bond and $0 to a Texas or UPC-state bond — only the rent it throws off counts there.

What happens if my sworn income estimate turns out to be wrong?

In Texas and UPC states, the personal representative (or their attorney) supplies the income estimate under oath — there’s no built-in true-up if the estate earns more or less than projected mid-year. The bond isn’t automatically adjusted; it takes an affirmative petition. If actual income runs meaningfully higher than the sworn estimate, an interested party can petition to increase the bond (Tex. Est. Code § 305.160; Unif. Probate Code § 3-605 lets any $10,000+ interested person or creditor force a review). If it runs lower, the fiduciary can petition to reduce (Cal. Prob. Code § 8484; Tex. Est. Code § 305.153(b)). Padding the estimate to avoid a mid-case increase just raises the premium for coverage you may not need — most fiduciaries estimate conservatively and revisit after the first accounting.

Does a blocked account actually lower my bond, or does it just restrict the money?

Both, and that’s the point. A blocked (restricted) account is a bank or brokerage account the fiduciary cannot withdraw from without a court order. Because the money is no longer freely available for the fiduciary to mismanage, the court excludes it — or reduces the offsetting bond amount — from the personal property side of the formula. California’s mechanism is Cal. Prob. Code § 8483 (deposit receipt showing withdrawal restrictions lets the court exclude that property from, or reduce, the bond calculation); Texas runs the identical trade through Tex. Est. Code § 305.153(b) and § 305.155 (bond reduced in proportion to court-ordered or voluntary deposits). The dollar amount doesn’t vanish — it just moves from "bonded and liquid" to "restricted and unbonded," which is exactly what a probate court wants for cash sitting idle during administration.

Why would using a corporate surety cost less than "going bare" with personal sureties?

In California only, personal (individual, non-corporate) sureties double the bond under Cal. Prob. Code § 8482(c) — the same $890,000 formula result becomes a $1,780,000 bond obligation if two individuals stand as sureties instead of a licensed surety insurer. The rationale: a court-admitted surety insurer is regulated, reserved, and rated; two individuals pledging their own assets carry none of that oversight, so the code prices in the extra risk by doubling the number the individuals are on the hook for. Texas and UPC-state formulas carry no equivalent doubling provision in their base statutory text — a corporate surety bond in Texas costs a percentage of the same undoubled figure either way.

Who actually calculates the number — the court, the clerk, or me?

It varies by state, and confusing the three models is the most common mistake fiduciaries make when budgeting for a bond. In California, the probate judge fixes the amount after reviewing the estate inventory (Cal. Prob. Code § 8482(a) — "the court in its discretion may fix the amount"). In Texas, the judge holds an evidentiary hearing on seven specific inputs before setting the number under § 305.153 (Tex. Est. Code § 305.152). In the base Uniform Probate Code model — used by Arizona, Michigan, Nebraska, New Mexico, and other UPC-adopting states — the personal representative files their own sworn estimate with the court registrar, and the bond is set "not less than the estimate" (Unif. Probate Code § 3-604). No judge does the math in a UPC state unless someone challenges the self-reported figure.

Can the bond amount go up after the estate is already open?

Yes, on specific triggers — it isn’t automatic. Texas ties the increase to concrete events: the court can order a higher or additional bond if estate property is sold or rented, money is borrowed against estate assets, or a mineral lease is authorized, and the existing bond is found insufficient to cover it (Tex. Est. Code § 305.160). UPC states use a different lever entirely: any interested person or creditor with a stake over $10,000 can file a written demand forcing a bond review, even over an existing waiver (Unif. Probate Code § 3-605) — the personal representative then has roughly 30 days to comply or risk removal. California’s judge retains ongoing discretion under § 8482 generally, exercised on petition or the court’s own motion as new assets surface during administration.
Eric Drummond, Licensed Surety Producer
Reviewed by
Eric Drummond, Licensed Surety Producer
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All content is researched from official state and federal sources (.gov). BuySuretyBonds.com works with Treasury-listed surety carriers.

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