The Three-Bucket Money Rule
Split every inflow among obligations, future wealth, and free spending
- Difficulty
- Easy
- Time to result
- ~days to results
- Steps
- 4
- Confidence
- 97%
Lund teaches her children to divide money into three categories whenever they receive it. The first bucket pays bills and other required obligations. The second pays the earner by moving money toward their future, which she describes as investing in a chosen vehicle such as crypto or stocks. Only the amount left after those two allocations becomes free money. The rule's value is sequencing: saving or investing is not whatever happens to survive discretionary spending. It is an explicit allocation made before that spending begins. Because Lund says the rule applies regardless of how much someone makes, it can be practised with small inflows and carried forward as income grows. The model is intentionally simple and does not specify percentages or endorse one particular investment.
Origin
Lund presents the three-category rule as a financial-literacy lesson she teaches her children.
Core principles
- 01Use the rule regardless of income size
- 02Meet obligations before discretionary spending
- 03Paying yourself means building future wealth
- 04Free money is what remains after the first two buckets
How to run it
- 1
Capture the inflow
Identify the full amount received before spending any of it. Apply the rule even when the amount is small.
Pro tip Practise with gifts and early earnings so the sequence becomes familiar.
Watch out Do not exempt small inflows if the purpose is to build the habit.
- 2
Fund obligations
Allocate the amount required to pay bills and other commitments first.
Pro tip Separate this money immediately so it cannot be mistaken for spending cash.
Watch out Calling committed money available can create an avoidable shortfall.
- 3
Pay your future self
Choose an amount to save or invest for future benefit. Select a vehicle deliberately rather than leaving the allocation undefined.
Pro tip The framework controls the allocation sequence, not which investment is suitable for a person.
Watch out Do not interpret the examples in the conversation as personalised investment advice.
- 4
Release the remainder
Treat only what remains after bills and future wealth as free money. Spend it without taking from the first two buckets.
Pro tip Make the available remainder visible so the spending boundary is clear.
Watch out Free money is not the original inflow minus bills alone.
In the wild
Illustrative application: a child who earns money selling dance clothes first sets aside any costs or obligations, then moves a chosen amount into savings or an investment account, and treats only the remainder as spending money. This ties Lund's three-category lesson to the small businesses she says her children started.
→ The child practises obligations, future wealth, and discretionary spending with real earned money.
Common mistakes
Spending before splitting
Waiting to save whatever remains gives discretionary purchases priority over future wealth.
Treating all remainder as savings
The model deliberately separates future wealth from free spending so both categories are explicit.
Assuming one investment fits everyone
Lund names several possible vehicles but does not provide a universal product or allocation.
Is it for you?
Best for
It is best for people learning a simple first system for handling wages, gifts, or business income.
Not ideal for
It is not ideal as a complete financial plan for complex debt, tax, insurance, or investment decisions.
From the transcript
“it doesn't matter how much money you make you need to put in three categories”
“you need to pay your bills right you need to pay yourself and by that whatever you choose to do invest it in something”
“and then the rest is your free money”
From the episode
Continuing the Mortgage Legacy with CEO Lisa Lund