A sinking fund is a dedicated savings strategy where you set aside money on a regular basis for a specific, planned future expense. Unlike emergency funds (which cover unexpected costs), sinking funds target known, predictable expenses that don't occur monthly — things like annual insurance premiums, holiday gifts, or car repairs.
31 steps across 7 sections
1. Fixed/Predictable Expenses
- Insurance premiums — auto, home, life, umbrella (annual or semi-annual)
- Property taxes — if not escrowed with mortgage
- Annual subscriptions — Amazon Prime, software licenses, gym memberships
- Professional dues — CPA license, bar association, union fees
- Vehicle registration and inspection
2. Variable/Estimated Expenses
- Car repairs and maintenance — tires, oil changes, brake pads (~$800-$1,500/year)
- Home repairs and maintenance — HVAC, appliances, roof, plumbing (1-2% of home value/year)
- Medical/dental expenses — deductibles, copays, glasses, orthodontia
- Pet care — vet visits, vaccinations, grooming
3. Lifestyle and Goals
- Holiday and Christmas gifts
- Vacation and travel
- Birthday gifts and parties
- Back-to-school supplies and clothing
- Wedding expenses
- Electronics and tech upgrades
- Furniture replacement
4. Less Obvious but Valuable
- Annual clothing budget
- Kids' activities and camps
- Charitable giving (end-of-year donations)
- Moving costs
- Self-employment tax payments
5. High-Yield Savings Accounts (HYSAs) -- Best Option
- Earn 4-5% APY (as of 2026) while keeping money liquid
- Many online banks offer "buckets" or sub-accounts within a single HYSA
- Label each sub-account by purpose (e.g., "Car Maintenance," "Holiday Gifts")
- Banks with bucket features: Ally, Capital One, SoFi, Marcus, Discover
6. Sub-Savings Accounts
- Some banks let you open multiple linked savings accounts
- Each gets its own balance and label
- Makes tracking multiple sinking funds easy without spreadsheets
7. Other Options
- CDs — for funds with a known, distant due date (e.g., vacation in 12+ months). Lock in a rate but lose liquidity.
- Money market accounts — similar to HYSAs with slightly different access rules
- Dedicated checking account — only if you need debit card access for purchases
Common Mistakes
- Too many sinking funds
- Raiding sinking funds for other purposes
- Not adjusting contributions
- Skipping automation
- Underestimating expenses
Pro Tips
- Start with annual expenses first
- Use the "bucket" HYSA approach
- Round up contributions
- Celebrate when you spend the fund
- Track in a simple spreadsheet
Sources
- Empower: 20 Sinking Fund Categories
- I Will Teach You to Be Rich: Sinking Funds Explained
- YNAB: What Is a Sinking Fund
- Ramsey Solutions: What Is a Sinking Fund
- Clever Girl Finance: How to Set Up Sinking Funds
- SoFi: Sinking Fund Categories
- Experian: Sinking Fund vs. Emergency Fund
- CNBC Select: What Is a Sinking Fund
- NerdWallet: Sinking Fund 2026
- Finder: Sinking Funds and Top Accounts
- The Fiscal Hub: Sinking Funds in a High-Yield Account