Support Koizen

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No paywalls, no ads, no selling your email. If Koizen has saved you money or confusion, here are the ways to help it keep going. Pick whichever feels right, or none at all.

How Koizen makes money

SourceWhat it means for you
Koizen toolsSpreadsheets you buy once and keep, sold on Etsy. Optional, never required to follow an article.
Partner linksA few labeled links to banks and tools. Same price for you; Koizen may earn a small fee. Never for loans.
Newsletter sponsor (later)At most one clearly labeled sponsor per letter, only if it fits what Koizen teaches.

1. Share one article

The biggest help costs nothing. Send one article to a cousin, a coworker, or the group chat where someone just asked about buying a house.

2. Get a Koizen tool

Each tool does the math from the articles for you, in Excel or Google Sheets. Instant download from the Koizen shop on Etsy.

Family Budget Spreadsheet preview

Family Budget Spreadsheet

$14.99

A budget built for a real household: sinking funds, family support, debt payoff, net worth, dashboard.

Get it on Etsy: instant download
Supporting Parents Budget preview

Supporting Parents Budget

$9.99

Plan vs actual for every kind of help, a Siblings tab for who gave what, and savings for the trip home.

Get it on Etsy: instant download
House Hacking Calculator preview

House Hacking Calculator

$19.99

Run a duplex to fourplex deal: cash to close, FHA checks, real monthly cost, 10 year equity.

Get it on Etsy: instant download
Rental Property Tracker preview

Rental Property Tracker

$9.99

Rent checked unit by unit, costs split for a house hack, cash flow and Schedule E totals for each property.

Get it on Etsy: instant download
First Home Savings Tracker preview

First Home Savings Tracker

$9.99

Set your home goal, log deposits, and see your cash to close and months to go.

Get it on Etsy: instant download
Side Hustle Income Tracker preview

Side Hustle Income Tracker

$9.99

Net income after fees, costs and mileage, what to set aside for taxes, and profit per hour for each side income.

Get it on Etsy: instant download
Debt Payoff Planner preview

Debt Payoff Planner

$7.99

Snowball or avalanche side by side, with your debt free date and the interest you save.

Get it on Etsy: instant download

3. Join the Koizen letter

Get the two free home buying guides now, plus one clear money lesson by email each Sunday.

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