Saving 5 min read · Updated October 16, 2026

Sinking funds: the fix for “surprise” expenses

Car registration, holidays, annual premiums. They are not surprises if you save a little for them every month.

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Many expenses that wreck a budget are not emergencies at all. Holiday gifts, back-to-school shopping, car registration and annual insurance premiums happen every year. A sinking fund spreads their cost across the months before they arrive.

How it works

Take the yearly cost, divide by 12, and save that amount each month. A $1,200 holiday budget becomes $100 a month starting in January.

Common sinking funds

  • Holidays and birthdays
  • Car maintenance, tires and registration
  • Annual or semiannual insurance premiums
  • Medical deductibles and copays
  • Home or rental repairs
  • Travel

Some banks let you create several named savings “buckets” inside one account, which makes sinking funds easy to track.

Add each sinking fund as a savings goal in the planner. It will tell you when it will be fully funded.
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Plan a sinking fund

Use the savings calculator to see how long a monthly deposit takes to reach your target.

Plan a sinking fund →

General educational information, not personal financial advice.