TL;DR — Key Takeaways
- →Greenback is a US expat tax-preparation firm.
- →Domicyle does not prepare or file a return.
- →Use Domicyle to compare countries, count FEIE and residency days, and keep documents.
- →Hand the day log and the election comparison to the preparer who files.
Short answer
Greenback Tax files. Domicyle plans. If you need Form 1040 prepared, you need a preparer or filing software. If you need a salary comparison and a day log before that filing, that is the other job.
Split
| Greenback Tax | Domicyle | |
|---|---|---|
| US expat return | Prepared and filed by a firm | Not offered |
| FEIE vs foreign tax credit | Part of a filed return | Planning model on FEIE vs FTC |
| Day count and Schengen | Not the product | Residency Tracker |
| Document storage for the year | Your preparer's portal | Audit Vault, private to you |
Bring the optimizer output and the residency PDF to filing. Do not treat either number as the return.
Educational planning only — not tax advice.