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Sinking Fund Calculator

Monthly savings needed to reach a future one-off expense

Sinking Fund Calculator

Goal Amount ($)
Months to Save
Already Saved ($)

A sinking fund is a dedicated savings account for a planned future expense. Instead of borrowing when the expense arrives, you save a fixed amount each month in advance — eliminating debt and interest.

  1. 1Monthly Saving = (Goal − Already Saved) ÷ Months Remaining
  2. 2Common sinking funds: car replacement, holiday, home repairs, Christmas
  3. 3Separate accounts for each fund prevent accidental spending
  4. 4High-interest savings accounts maximise growth
$3,000 holiday in 6 months=Save $500/month
$10,000 car deposit in 2 years=Save $416.67/month
$1,200 Christmas fund, 10 months=Save $120/month
CategoryTypical GoalMonthly (12 months)
Holiday$3,000$250
Car deposit$5,000$417
Home repairs$2,400$200
Christmas$1,200$100
New laptop$1,500$125
Wedding$20,000$1,667
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