A sinking fund is money saved gradually for a known future expense. It helps you avoid debt when predictable costs arrive.
Sinking fund meaning
Instead of paying a large bill all at once, you save a small amount regularly until the target is reached.
Common sinking fund examples
Examples include car repairs, annual insurance, school fees, holidays, gifts, weddings, and home maintenance.
How to calculate it
Divide the target amount by the number of months until the expense is due.
Keep funds organized
Use separate accounts, sub-accounts, or clear labels so the money does not mix with daily spending.
Review regularly
Update the target if costs increase or deadlines change.
Try the Sinking Fund Calculator
Use the free Moniply sinking fund calculator to turn this guide into numbers you can act on.
Open Sinking Fund CalculatorExample
If holiday gifts will cost $600 and you have 10 months, save $60 per month in a sinking fund.
Frequently asked questions
Is a sinking fund the same as an emergency fund?
No. A sinking fund is for planned expenses. An emergency fund is for unexpected events.
How many sinking funds should I have?
Start with the most predictable large expenses, then add more as your system becomes easier.
Where should I keep sinking funds?
Keep them somewhere safe and separate from daily spending money.
Moniply App Coming Soon
Want smarter money guidance?
Moniply is building an AI-powered financial coach to help you spend smarter, save more, track goals, and build better money habits.
Moniply provides educational content and calculator estimates only. This page is not financial, investment, tax, or legal advice. Consider your personal situation and consult a qualified professional where needed.