FreeByte

Maintenance budget calculator

The 1% rule, with your numbers.

Built and reviewed by Dovanic, Founder and editor, FreeByteLast reviewed: 2026-08-18
$
1%

Yearly budget

$4,200

Set aside monthly

$350

With these inputs, yearly budget comes to $4,200 over 35 years. Set aside monthly works out to $350. The result assumes yearly maintenance stays at 1%.

Over ten years
$42,000

Over time · by property age (years)

What moves the number · Yearly budget

Input−10%Now+10%
Home value$3,780$4,200$4,620
Yearly maintenance$3,780$4,200$4,620

Solve for an input

Whatmakesequal

Compare scenarios

Save this set of inputs, change something, then save again to compare the outcomes side by side.

The 1% rule, with your numbers.

A worked example

Starting figures

Home value
$420,000
Yearly maintenance
1%
Property age (years)
35

What it returns

Yearly budget
$4,200
Set aside monthly
$350
Over ten years
$42,000

How to read the results

With the defaults above, yearly budget works out at $4,200.

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