Quick answer: A sinking fund is money you set aside a little at a time for a cost you know is coming, like holiday gifts, car repairs, insurance premiums, or a vacation. You pick the goal, decide when you need the money, divide the total by the number of months, and save that amount each month. When the bill comes, the cash is already there, so you do not need a credit card or a loan. It is different from an emergency fund, which is for surprises.
We like sinking funds because they turn big, scary bills into small monthly steps. Here is how they work.
Sinking Fund vs Emergency Fund
| Sinking fund | Emergency fund | |
|---|---|---|
| Purpose | Known, planned costs | Surprises like job loss or a big repair |
| Timing | You know roughly when | You do not know when |
| Examples | Holidays, car tags, insurance | Medical bills, sudden job loss |
You need both. See our post on how to build an emergency fund.
Common Sinking Fund Ideas
- Holiday and birthday gifts
- Car repairs, tires, and registration
- Insurance premiums paid once or twice a year
- Property taxes
- Home repairs and upkeep
- Back to school costs
- Vacations
- Medical and dental costs you can plan for
How to Set Up a Sinking Fund
- Pick the goal. For example, holiday gifts.
- Pick the amount. Look at what you spent last year as a guide.
- Pick the date. When do you need the money?
- Do the math. Divide the amount by the months left.
- Save each month. Set up an automatic transfer if you can.
- Use it only for that goal.
A Simple Example
| Goal | Amount needed | Months until due | Save each month |
|---|---|---|---|
| Example: car tires | $600 | 6 | $100 |
| Example: holiday gifts | $480 | 12 | $40 |
These are made up numbers to show the math. Use your own amounts.
Where to Keep Sinking Funds
- A separate savings account for each goal
- One savings account with a simple spreadsheet tracking each goal
- Cash envelopes for small, short term goals
Pick what is easiest for you to track.
How Sinking Funds Fit Into Your Budget
Add each sinking fund as a line in your monthly budget, just like a bill. Our post on how to make a monthly budget shows how. When you plan for these costs, they stop wrecking your budget.
Sinking Funds and Long Term Planning
Sinking funds handle the near term. For long term saving, some people also look at tools like cash value life insurance. See our page on infinite banking pros and cons for an honest look at that option.
You can also join our free Cash Flow Association community on Skool at skool.com/cashflowassociation to learn about cash flow and money basics with other members.
Tips to Stick With It
- Start with one or two goals
- Automate the savings
- Name each fund so you remember its job
- Review your funds every few months
Common Mistakes
| Mistake | Better habit |
|---|---|
| Using the fund for other things | Keep each fund for its own goal |
| Starting too many funds at once | Begin with one or two |
| Guessing the amount | Check what you spent last year |
| Forgetting yearly bills | List every bill that is not monthly |
The Bottom Line
A sinking fund is a simple way to save for costs you know are coming. Pick a goal, divide the cost by the months you have, and save that amount each month. When the bill arrives, the money is ready, and you avoid debt. Pair sinking funds with an emergency fund and a monthly budget for a stronger plan.
Keep Reading on This Site
- Infinite Banking Pros and Cons: An Honest Look Before You Start
- What Are Paid Up Additions? A Plain English Guide for Whole Life Policy Owners
- How Does a Policy Loan Work? A Plain English Guide to Borrowing From Whole Life Insurance
- How to Build an Emergency Fund: 7 Simple Steps to Get Started
- Insurance and Infinite Banking
- Insurance and Own Your Bank Guide
Frequently Asked Questions
What is a sinking fund in simple terms?
It is money you save a little at a time for a cost you know is coming.
How is a sinking fund different from an emergency fund?
A sinking fund is for planned costs. An emergency fund is for surprises.
Where should I keep a sinking fund?
A savings account or simple cash envelopes both work. Pick what is easy to track.
How much should I put in a sinking fund?
Divide the total cost by the number of months until you need it.