Sinking Funds: Stop Irregular Bills From Becoming Emergencies

• 1. List the irregular costs from the last 12 months
• 2. Put a yearly number and a due month next to each
• 3. Divide by the months left until each one is due
• 4. Keep it separate from the emergency fund
• 5. Automate the transfer on payday
• 6. Review twice a year
• Free tools

Most “money emergencies” aren’t emergencies. Car registration, the annual insurance bill, holiday gifts, a new set of tires: they’re known costs that just don’t arrive monthly. A sinking fund turns them into small, boring monthly transfers.

§1. List the irregular costs from the last 12 months

Scroll a year of bank and card statements and write down anything that isn’t monthly: insurance premiums, subscriptions billed yearly, car repairs, medical copays, gifts, school fees, travel, pet care. Most people find 8-15 items.

§2. Put a yearly number and a due month next to each

Example: car insurance $900 due in June, gifts $600 due in December, car maintenance $480 spread across the year.

§3. Divide by the months left until each one is due

$600 for gifts with 6 months to go is $100 a month. $900 insurance with 7 months to go is about $129. Add them up: that’s your monthly sinking fund transfer.

§4. Keep it separate from the emergency fund

The emergency fund is for the unknown (job loss, surprise medical bill). Sinking funds are for the known. Keeping them in separate savings buckets (many banks allow nicknamed sub-accounts) stops one from quietly eating the other.

§5. Automate the transfer on payday

A scheduled transfer the day after payday means the money is set aside before it gets spent. When the bill arrives, it’s just a transfer back.

§6. Review twice a year

Prices change. Every six months, update the yearly amounts and the monthly transfer. Leftovers can roll into next year or into the emergency fund.

§Free tools

• Sinking funds calculator: https://smartbudgetsheets.surge.sh/calculators/sinking-funds-calculator/?utm_source=nostr
• Sinking funds for beginners (full guide): https://smartbudgetsheets.surge.sh/blog/sinking-funds-for-beginners/?utm_source=nostr
• Free sinking funds spreadsheet (CSV for Excel / Google Sheets): https://smartbudgetsheets.surge.sh/templates/sinking-funds-spreadsheet/?utm_source=nostr
• Emergency fund calculator: https://smartbudgetsheets.surge.sh/calculators/emergency-fund-calculator/?utm_source=nostr
• 42 free budget templates, pay what you want ($0 is fine): https://smartbudgetsheet.gumroad.com/l/ngpkrb?utm_source=nostr

General information, not personal financial advice.