---
source_url: "https://3tej.com/?utm_source=openai"
title: "3tej - Personal finance guides for 8 countries"
mirrored_at: 2026-08-17T15:03:03.792Z
host: 3tej.com
cited_in_42a: true
mirror_canonical: "https://index.42a.ai/3tej.com/index__q__utm_source_openai"
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> **Original source:** https://3tej.com/?utm_source=openai

## Frequently asked

Is 3tej free?

Yes. Every guide, calculator, and converter is free with no signup, no rate limit, and no paywall.

Who writes the guides?

Named in-house editors. Every article carries a byline and is checked against the primary source before publishing, with a visible last-updated date.

Are my inputs stored?

No. Every calculator runs in your browser using JavaScript; the numbers you type never leave your device.

Which countries do you cover?

We maintain dedicated tax and money content for 8 jurisdictions: United States, United Kingdom, Canada, Australia, India, Singapore, United Arab Emirates, Germany.

How often is it updated?

Statutory figures update annually as each authority publishes them; rates that move within the year refresh weekly via an automated pipeline.

## About this publication

Every guide and calculator is written in-house, checked against the primary source (IRS, HMRC, ATO, CRA, IRAS, BMF, and the Indian Income-Tax Department), dated, and signed by a named editor. Your inputs never leave your browser, and we publish exactly how we source our numbers.