About Us

Our Mission

residex.io was created to help digital nomads, expats, and frequent travelers stay on top of their tax residency obligations. We believe that understanding where you stand with the 183-day rule shouldn’t require expensive software or complex spreadsheets.

The Problem We Solve

Tax residency rules are complex. Spend too many days in the wrong country, and you could unexpectedly owe taxes on your worldwide income. Many travelers discover this too late, facing unexpected tax bills and compliance headaches.

We built residex.io to give you visibility into your travel patterns before they become a problem. Track your nights, monitor your thresholds, and make informed decisions about where to spend your time.

Where residex.io Ends, and Amanda Begins

Residex does one thing, and does it well: it counts your days. It shows you how much physical presence you’ve built up in each country and warns you before you cross a 183-day threshold. That’s the whole job — a fast, private, free day-counter for the 183-day rule. We’ve deliberately kept it that focused.

But counting days is only the start. Knowing you’ve spent 200 days somewhere doesn’t tell you whether a tax treaty tie-breaker applies, what you actually owe, which forms to file, or how social security and reporting obligations stack up across borders. Those are real legal questions — and they’re exactly where Residex stops.

That’s where Amanda takes over. Amanda is our companion service for the harder half of the problem: it turns your day counts and travel reality into a clear map of your actual cross-border legal obligations, so nothing catches you by surprise. Use Residex to watch the days; reach for Amanda when those days start to carry consequences.

Privacy First

Your travel data is sensitive. That’s why our free tier stores everything locally on your device. We don’t track where you’ve been, we don’t sell your data, and we don’t require an account to use the core features.

Built for Nomads, by Nomads

We understand the challenges of location-independent living because we live it ourselves. residex.io is an indie project built with care, designed to be simple, fast, and actually useful.

Get in Touch

Have questions, feedback, or feature requests? We’d love to hear from you.