Wealth Ladder Guide

Companion worksheet

Windfall Endowment Worksheet

Turn a sudden sum into Stable Funding, Liquidity, and long-term Core capital.

Put the structure to work

Windfall Endowment Structure

Move from Windfall to Stable Funding, Annual Funding Gap, Liquidity, and Core.

This educational model is not a guarantee or an individualized financial recommendation.

Your starting point

A sudden sum.
One clear plan.

Establish Stable Funding first to cover essential recurring household needs. Annual Funding Gap (G) is the expected annual household need not covered by Stable Funding and therefore requiring support from the wealth structure. Here, G will generally be the remaining expected irregular, periodic, and discretionary household needs under Planned Liquidity.

Structural sequence: Windfall → Protection → Stable Funding → Liquidity → Core.

01
02
/year

Expected annual household needs before Stable Funding.

03

Amount of the windfall used to create predictable annual income.

04
/year

Enter the annual income produced by the $300,000 converted to Stable Funding.

$300,000 converted to Stable Fundingproduces $20,000/year
$60,000 Expected Annual Household Need$20,000/year Stable Funding$40,000 Annual Funding Gap (G)
Usable Core Rate
Added margin: 3%

The usable rate is a support-capacity reference. A lower rate requires more Core capital and leaves more planning margin.

Liquidity Buffer (B)
5 years
Protection in Place

Safeguards against major financial losses and claims, including appropriate homeowners, auto, umbrella/liability, health, disability, and life insurance, together with appropriate legal and asset-protection planning.

Funding status

Your Liquidity target is funded, but available Core is below the amount required to support Liquidity.

CORE SHORTFALL
Total Windfall$1,000,000Original windfall amount
Capital to Stable Funding$300,000Capital converted to create predictable annual income
Capital Available$700,000Total Windfall less Capital to Stable Funding
Liquidity Allocated$200,000Required Liquidity funded from Capital Available
Core Available$500,000Capital Available less Liquidity Allocated
Stable Funding Income
$20,000/year
Produced by $300,000 of capital
Liquidity Required$200,000
Core Required$1,333,333Core required to support Liquidity
Liquidity + Core Required$1,533,333Liquidity required $200,000 + Core required $1,333,333 = $1,533,333

Inside Allocated Liquidity

For Liquidity sizing, use the Annual Funding Gap (G) or 25% of annual household spending, whichever is greater, then multiply by the selected Liquidity Buffer (B) in years. Planned Liquidity and Emergency Liquidity each equal the Liquidity Sizing Amount; they remain separate because Planned covers anticipated needs and Emergency covers unexpected needs. Runway Liquidity provides time protection through an extended disruption or recovery period and equals (B - 2) times the Liquidity Sizing Amount. When G is at least 25% of annual household spending, the practical formula reduces to the book's familiar L = B G structure.

Liquidity Sizing Amount = max(G, 25% of annual household spending)

Practical sizing: L = B x max(G, 25% of annual household spending)

When G is less than 25% of annual household spending, this simplified approach produces more Liquidity than a calculation based strictly on the actual funding gap. The difference provides an additional margin of protection while preserving a simple, consistent sizing rule.

Liquidity target: $200,000

Planned (1 year)$40,000Emergency (1 year)$40,000Runway (3 years)$120,000

Runway Liquidity is sized to cover at least B - 2 years of the current Annual Funding Gap (G), assuming Stable Funding continues at the expected level. When the 25%-of-spending minimum is greater than G, the additional amount provides extra margin. This is a sizing objective, not a guarantee that the money will last exactly that many calendar years under all future conditions.

Core Required to Support Liquidity

$25,000 Liquidity Sizing Amount ÷ 3% usable rate = $1,333,333 Core required to support Liquidity

Core Required to Support Liquidity at 4%

$25,000 Liquidity Sizing Amount ÷ 4% = $1,000,000

Core support uses the same Liquidity Sizing Amount as Emergency and Runway: max(G, 25% of annual household spending). The 4% figure is a mathematical reference. The selected lower usable rate provides additional margin for market variability, fees, taxes, inflation, and Liquidity replenishment. It is not a guaranteed return or withdrawal rate. With C as Core capital and s as the support ratio, s = G / C. When G is at least 25% of annual household spending, L = B G and L / C = B s.

Capital Available
$700,000
Liquidity Allocated
$200,000
Core Available
$500,000
Core Required to Support Liquidity
$1,333,333
CORE SHORTFALL
$833,333
PROTECTION
In place

Amount by which Core Available falls below Core Required.

Core Shortfall = max(0, Core Required − Core Available)

Wealth Ladder Guide

The Windfall Endowment

Windfall Endowment Worksheet

wealthladderguide.comPrinted:

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Inputs and assumptions

Expected Annual Household Need
Stable Funding Income
Annual Funding Gap (G)
Capital Available
Selected Usable Core Rate
Selected Liquidity Buffer (B)
Protection in Place

Annual Funding Gap (G) is the expected annual household need not covered by Stable Funding. On this worksheet, Stable Funding is established first to cover essential recurring needs, so G generally represents remaining expected irregular, periodic, and discretionary needs under Planned Liquidity.

Capital Available is the portion of the windfall remaining after capital used to create Stable Funding. Stable Funding Income is produced by Capital to Stable Funding.

Protection in Place: Safeguards against major financial losses and claims, including appropriate homeowners, auto, umbrella/liability, health, disability, and life insurance, together with appropriate legal and asset-protection planning. Protection is a structural checkpoint, not a capital allocation.

Liquidity and Core Capital Plan

Total Windfall
Capital to Stable Funding
Capital Available
Liquidity Allocated
Core Available
Liquidity Target
Core Required to Support Liquidity
CORE SHORTFALL
PROTECTION
Liquidity + Core Required
Core Required to Support Liquidity at 4%
Capital Allocated Across the Windfall
Remaining / Unallocated Capital

Amount by which Core Available falls below Core Required.

Core Shortfall = max(0, Core Required − Core Available)

Inside Allocated Liquidity

For Liquidity sizing, use the Annual Funding Gap (G) or 25% of annual household spending, whichever is greater, then multiply by the selected Liquidity Buffer (B) in years. Planned Liquidity and Emergency Liquidity each equal the Liquidity Sizing Amount; they remain separate because Planned covers anticipated needs and Emergency covers unexpected needs. Runway Liquidity provides time protection through an extended disruption or recovery period and equals (B - 2) times the Liquidity Sizing Amount. When G is at least 25% of annual household spending, the practical formula reduces to the book's familiar L = B G structure.

Liquidity Sizing Amount = max(G, 25% of annual household spending)

Practical sizing: L = B x max(G, 25% of annual household spending)

When G is less than 25% of annual household spending, this simplified approach produces more Liquidity than a calculation based strictly on the actual funding gap. The difference provides an additional margin of protection while preserving a simple, consistent sizing rule.

Planned (1 year)
Emergency (1 year)
Runway (3 years)

Runway Liquidity is sized to cover at least B - 2 years of the current Annual Funding Gap (G), assuming Stable Funding continues at the expected level. When the 25%-of-spending minimum is greater than G, the additional amount provides extra margin. This is a sizing objective, not a guarantee that the money will last exactly that many calendar years under all future conditions.

What This Means

Equations used

Liquidity:

Core Required to Support Liquidity:

Foundational Liquidity relationship: L = B G. Practical sizing rule: L = B x max(G, 25%H). When G is at least 25% of H, the two are identical.

Ratios: s = G / C; when G is at least 25% of annual household spending, L / C = B s.