One Number That Makes Big Bills Feel Small All Year

One Number That Makes Big Bills Feel Small All Year · ZenPayDay
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One Number That Makes Big Bills Feel Small All Year

Here’s the whole thing in three steps.

Published June 14, 2026 Sinking Funds One-Number Rule

Hi there, Car insurance, holidays, back-to-school — the ‘surprise’ expenses that aren’t really surprises. A sinking fund turns them into one calm monthly number.

Here’s the whole thing in three steps.

Today’s big idea · Sinking funds

Divide each big yearly bill by 12 and save that amount monthly

typically $50–200/yr in avoided interest

One-time setup

How to put it into practice

Work down the list in order — the quick wins at the bottom take a minute each.

List every bill or expense that hits once or twice a year

takes 5 min

Divide each by the months until it’s due — that’s your number

instant clarity

Auto-transfer that amount to a separate savings space each month

set and forget

Quick wins

  • Start with just one bill if the full list feels like a lot momentum first
  • Name the savings account after the bill it’s for harder to raid
  • Review the numbers every January takes 10 min/yr
  • Use windfalls to top up the fund early gets ahead of schedule

ZenPayDay is an independent personal finance publisher. This email is general information, not financial advice — your numbers will vary, so review your own statements before making changes.

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