# `Stripe.Resources.Tax.Registration.CountryOptions.Si`
[🔗](https://github.com/jeffhuen/tiger_stripe/blob/main/lib/stripe/resources/tax/registration.ex#L2027)

Nested struct within the parent resource.

# `t`

```elixir
@type t() :: %Stripe.Resources.Tax.Registration.CountryOptions.Si{
  standard:
    Stripe.Resources.Tax.Registration.CountryOptions.Si.Standard.t() | nil,
  type: String.t() | nil
}
```

* `standard`
* `type` - Type of registration in an EU country. Possible values: `ioss`, `oss_non_union`, `oss_union`, `standard`.

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*Consult [api-reference.md](api-reference.md) for complete listing*