What It Means
A sinking fund is savings built up on a schedule for one specific expense you already know is coming, such as an insurance renewal, holiday gifts or school costs. You divide the total by the months left until it's due and set that amount aside each month. When the bill arrives, the money is already there, and your regular budget carries on as normal.
How It Sounds at Home
- "That comes out of the car fund."
- "We've been saving for Christmas since January."
- "Don't touch that one, it's for insurance."
The Breakdown
Worked example. A family has three costs coming up:
| Cost | Amount | Months away | Set aside each month |
|---|---|---|---|
| Car insurance renewal | $1,200 | 8 | $150 |
| Holiday gifts | $600 | 10 | $60 |
| School supplies and fees | $300 | 6 | $50 |
| Total | $260 |
A single $260 monthly line replaces three months where the budget would otherwise take a hit.
What your number means. Under 5% of take-home pay is easy to automate with a transfer the day after payday. Between 5% and 15% is common for a household with a car, kids and holidays, so fund the nearest deadline first. Above 15%, push a deadline back, shrink a goal, or keep only the costs that would truly cause trouble.
Where It Comes From
The term comes from government finance. In 1717 Britain set up a sinking fund, based on proposals by Robert Walpole, to pay down the national debt. The money came from savings after the interest on part of the debt was cut from 6% to 5%.
Good to Know
A sinking fund and an emergency fund cover different things. An emergency fund is for costs you can't predict, like a job loss or a broken furnace. A sinking fund is for costs you can put on a calendar. Keeping them in separate places stops one from quietly paying for the other.
FAQ
How many sinking funds should I have?
There's no set number. A good start is one for each expense that caused a squeeze last year, then add more as new costs show up.
Where should I keep sinking fund money?
Somewhere separate from everyday checking so it doesn't get spent by accident. Many people use a savings account, and some banks let you split one account into labeled buckets.
Is a sinking fund the same as an emergency fund?
No. An emergency fund covers the unexpected. A sinking fund covers planned costs with a known amount and due date.
Do It in Buhata
Jars
Create a Jar for each cost in Buhata, give it a target and a date, and watch it fill with every paycheck.
Open BuhataRelated Category
Sources
History of Parliament Online, "Walpole and the National Debt"
Last updated .