What is reported
The source site summarises the standard financial-account data as identity and tax number, account balance at 31 December, gross interest and dividends, other covered income and, for custody accounts, gross proceeds from sales.
For the surrounding context, see Swiss banking hub.
The exact scope follows the applicable AEOI/CRS rules and account classification.
If this decision changes the viability or sequence of your move, a Swiss relocation strategy consultation can apply it to your own facts.
The mechanism is the same wherever the account sits. FreedomBanking's explanation of what CRS actually reports covers the case where you are not resident where you bank.
What changes after relocation
If you were resident in another CRS partner jurisdiction and genuinely cease that tax residence, the Swiss bank’s reporting to that former country can cease once the bank has valid updated self-certification and the legal conditions are met.
If you remain dual resident, reporting may continue to both relevant jurisdictions.
The self-certification is a live document
Tell banks when your tax residence changes. The source notes that intentionally false self-certification or failure to report changes can trigger Swiss penalties of up to CHF 10,000 under the relevant rules.
For the surrounding context, see opening a Swiss bank account.
AEOI is not a tax
It is an information-exchange mechanism. A correctly declared foreign account does not become illegal because it is reported.
For the surrounding context, see choosing a Swiss bank.
Once you are Swiss resident, your Swiss tax return itself generally requires worldwide assets and income, so the sensible model is transparent international diversification rather than secrecy.
What gets reported
The common reporting framework is broader than “the bank tells your country that you have an account”. Reportable information can include identifying data and tax residence/TIN, year-end balance or value, gross interest and dividends, and gross proceeds from sales or redemptions depending on the account and reporting category.
That makes the tax-residence self-certification an important document. If your residence changes, update it. Do not leave three banks showing three different countries because the move was never communicated.
Switzerland is not a secrecy workaround
Swiss banking confidentiality still matters domestically, but it coexists with international information exchange. The strategy for an international resident is therefore not concealment. It is to make sure that the right country receives the right report because the residence position itself is correct.
For people with multiple homes, the most dangerous mistake is treating a mailing address as a tax residence. Banks ask for tax residence, not where you prefer statements to arrive.
Keep copies of every self-certification and the evidence supporting it.
General information on Swiss law and practice, not individual legal, tax or investment advice.