Normally to become a Swiss citizen, you need to be ‘integrated’ which is often taken to mean (among other things) that you have a job and are economically integrated.
Has anyone naturalized after FIREing? I’m wondering if this has adverse effects on the application.
Das Kriterium der Teilnahme am Wirtschaftsleben ist erfüllt, wenn:
[…]
− Bewerbende ausreichende finanzielle Mittel haben, um den Lebensunterhalt von
sich und ihrer Familie zu bestreiten, wenn sie nicht erwerbstätig ist. Vermögende
und Rentenbeziehende sind somit nicht von vornherein von einer Einbürgerung
ausgeschlossen
Worked fine for Tina Turner 
I think it depends on your municipality. It’s not unlikely that they have a special form that your employer has to fill, and you’d need to talk your way out of it.
Don’t worry if you have millions
I have and it was no issue
in a different thread i’ve shared my experience
Aren’t you married to a Swisse though? Maybe I’m confounding. Wouldn’t that make a difference?
It certainly helped from an integration perspective plus additional proof of never needing sozialhilfe but the rest of my dossier was already very strong. What helped more is that my wife works for the Eidgenossenschaft so coached me on how to exactly articulate things so it comes across well (eg letter describing my assets, career prospects, etc and being financially independent).
Did not receive a single critical question about my fire status.
Process is different, the main one is that only federal requirements are checked (so you’d also expect less arbitrary decision making since SEM drives the process and decides rather than local authorities).
For the normal naturalization, some cities and cantons have stricter requirements than the confederation. (And you might be subject to more arbitrary decision making along the way, tho it depends on Cantons eg Zürich had a reform a few years ago that aligns the process over all Gemeinde)
https://www.ch.ch/en/foreign-nationals-in-switzerland/naturalisation/
Correct
Mind you, still had an integration interview locally with a cantonal police officer - not a casual thing, very structured, but clearly less risk of arbitrary BS.
Also no vote by the local population.
Unlike the yoga pants lady.
Anyway for any places that’s deciding based on rule, FIRE shouldn’t be an issue. It’s similar criteria as for getting residency btw (e.g. for EU/EFTA citizens who move here without planning to study or get a job).
E.g. the Kt ZH handbook: https://www.zh.ch/content/dam/zhweb/bilder-dokumente/themen/migration-integration/einbuergerung/eo_handbuch_einbuergerungen_ab_01.07.2023.pdf
(already posted above) makes it clear that it’s not about having a job, but about being able to sustain yourself.
You can even justify it with income from third party (it’s really about not needed Sozialhilfe).
Je nach persönlicher Situation müssen Bewerbende als Nachweis andere Dokumente
einreichen:
- Bei Anstellung: Arbeitgeberbestätigung
- Bei Selbständigkeit: Kopien der Seiten 1 - 4 der aktuellsten Steuererklärung
- Bei Arbeitslosigkeit: ALV-Taggeldabrechnung der letzten 3 Monate
- Bei Leistungen von Dritten: Bescheinigung der AHV/IV, SUVA, KVG, Pensionskasse, Alimente oder Unterhaltszahlungen, Stipendien usw.
- Bei Hausfrau/-mann: Einkommensnachweis der Familie
- Bei Erwerbslosigkeit: Vermögensnachweis oder anderes
- Bei Aus-/Weiterbildung: Formular “Bestätigung Aus-/Weiterbildung”
- Bei Kindern ab 12 Jahren: Aktuelle Schulbestätigung oder Kopie vom Schulzeugnis
If your application is subject to an interview and municipal vote, I wouldn’t be surprised if
would be unexpected or might be initially be slightly frowned upon by some normal people. Maybe asking what you’re actually doing day-to-day and, worst case, wondering whether you’re just a rich person that wants a password for convenience or financial gain.
I’d consider it a complete non-issue though, if you can make a good case for integration otherwise:
Your financial status really doesn’t deserve more mention than a low-key acknowledgement that you’ve worked and saved a lot to live off comfortably. Especially given how frugality is an admirable trait and personal wealth is ubiquitous, but rather quietly enjoyed here.