How a sinking fund works
- List the irregular expenses you know are coming in the next year.
- Estimate each cost and when it's due.
- Divide the cost by the months left and save that amount every month.
- When the bill arrives, pay it from the fund — no stress, no debt.
Sinking fund examples
| Expense | Cost | Months away | Save per month |
|---|---|---|---|
| Car insurance (6-month premium) | $900 | 6 | $150 |
| Holiday gifts | $600 | 10 | $60 |
| New laptop | $1,200 | 12 | $100 |
| Annual subscriptions | $240 | 12 | $20 |
Sinking fund vs emergency fund
A sinking fund covers costs you can predict. An emergency fund covers what you can't. Mixing them means the next car repair eats the money meant for a job loss.
Making sinking funds part of your budget
In a zero-based budget, each sinking fund gets its own line, so the money has a job before payday ends. The savings goal calculator works out the monthly amount for any target and date, and the free monthly budget template has a line for sinking funds.
Frequently asked questions
What is the difference between a sinking fund and an emergency fund?
A sinking fund is for an expense you can predict — an annual bill, a vacation, holiday gifts. An emergency fund is for things you can't predict, like a job loss or an urgent repair. Keep them separate so planned spending never drains your safety net.
How many sinking funds should I have?
Start with the two or three irregular costs that hurt most, such as car insurance, car repairs and holidays. Add more once those feel easy.
Where should I keep sinking funds?
In a savings account, ideally one that earns interest. Many banks let you create several named savings "buckets" inside one account.
Written by
Finance Specialist & Editor, VaultlyApps
Researched against primary US sources and reviewed by a finance expert on our team. Written for US readers — general education, not financial, tax or legal advice. Editorial policy · Disclaimer
