Sinking Funds for Predictable Irregular Expenses
A sinking fund is money gradually set aside for an expense you expect. Unlike an emergency fund, the expense is known or reasonably predictable even if the exact amount is not.
Good candidates for sinking funds
Insurance renewals, vehicle maintenance, school costs, holidays, appliance replacement, annual subscriptions and home repairs are common examples.
Estimate the amount and due date, then divide the remaining amount by the months available.
Keep estimates realistic
Review actual costs each year. If an annual expense rises, update the monthly set-aside rather than waiting for the shortfall to appear.
Avoid excessive fragmentation
Too many tiny funds can become hard to manage. Related expenses can be grouped if that makes the system easier to maintain.
A practical next step
Write down the one number or fact from this topic that affects your situation—such as a balance, rate, due date, fee, target amount or policy limit. Then verify any jurisdiction-specific rule with an official source before making a decision.