Sinking Fund
Definition
Money set aside in a savings account for a specific future expense you know is coming. Car insurance due in 3 months? Sinking fund. New roof needed in 2 years? Sinking fund. It's not an emergency (you know when it's coming), but it prevents having to use credit when the bill arrives.
Why It Matters
Sinking funds prevent unnecessary debt. Instead of charging a $3,000 car repair on a credit card (pay 18% interest), you have $3,000 set aside. Combine many sinking funds (car, home maintenance, gifts, vacation) and you reduce financial stress substantially.
Example
Your car insurance is $1,500 for the year. Set aside $125/month in a sinking fund. After 12 months, you have $1,500 ready when the bill hits. No stress, no credit card, no interest. Do the same for 5-6 categories and you're barely stressed about predictable expenses.