Sinking Funds: What They Are and How to Set Them Up
A sinking fund is money you set aside a little at a time for a specific, known future expense, so that when the bill arrives it is already paid for. Instead of being blindsided by car insurance, the holidays, or a yearly subscription, you save a small amount each month and the cost feels like nothing when it lands. A sinking fund turns a scary lump sum into a calm monthly habit.
It is the difference between dreading December and simply paying for it. Here is how they work and how to start.
How is a sinking fund different from an emergency fund?
An emergency fund is for the unexpected: a job loss, a surprise repair, the things you cannot predict. A sinking fund is for the expected but irregular: bills you know are coming but that do not fall every month. Both protect you from going into debt; they just cover different kinds of expenses. You want both, and here is how to build the emergency fund.
What to use sinking funds for
| Sinking fund | Yearly cost | Save per month |
|---|---|---|
| Car maintenance + registration | $600 | $50 |
| Holidays + gifts | $480 | $40 |
| Annual subscriptions | $180 | $15 |
| Back-to-school | $360 | $30 |
The trick is simple: take the yearly cost, divide by twelve, and save that amount every month. By the time the bill arrives, the money is already there.
How to set up a sinking fund, step by step
- List your known irregular expenses. Walk through the year and write down the costs that do not happen monthly.
- Estimate each yearly total. A rough number is fine; you can adjust as you learn.
- Divide by twelve. That is your monthly amount per fund.
- Add the monthly amounts to your budget. Treat them like any other bill, because that is what they are, just paid in advance.
- Keep the money trackable. Use separate savings accounts or a single account with the amounts tracked on paper or in a planner.
Never get surprised by a bill again
The Complete Bundle includes a Sinking Funds command center and savings trackers, so every planned expense is funded before it lands.
Explore the Complete BundleFrequently asked questions
Where should I keep sinking fund money?
In a savings account so it is separate from everyday spending, ideally one that earns a little interest. You can use one account per fund, or a single account with each fund's balance tracked on paper or in a planner.
How many sinking funds should I have?
Start with two or three for your biggest irregular costs, like car expenses and the holidays, then add more as the habit settles. Too many at once gets overwhelming; a few well-chosen ones do most of the work.
What is the difference between a sinking fund and just saving?
A sinking fund has a specific purpose and a target, which makes it far more likely to actually happen. General savings tends to get borrowed against; money labeled for car repairs tends to stay put for car repairs.
The bills you dread are usually the ones you can see coming. Pick one, divide it by twelve, and start setting that aside. That is the next step, and it makes the whole year feel calmer.