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Account types

Stablecoin Accountreserved

GENIUS Act, Pub. L. 119-27. No final rules. Reserved; not enabled.

On this pageOverviewAuthorityParametersExampleRules
Slugstablecoin-account
NatureServicingRecord — Recorded, not held. No assets and no obligation.
ContributionsNotApplicable
EarningsCurrentlyTaxable
Contribution yearNotApplicable
Statusreserved
Legacy codeSTC — ISCP import and statement templates only. Not identity, and not accepted by the API.

Required authority

An institution may open this account only if it satisfies every requirement group below. Within a group, any one authority suffices. Across groups, all must be satisfied.

GroupAny one of
Group 1PermittedPaymentStablecoinCustodian

Resolve availability at runtime with GET https://api.a8core.io/v1/account-types. Never hard-code it.

Create Account parameters

POSThttps://api.a8core.io/v1/accountsoperation: CreateAccount
NameTypeDescription
ProviderReferenceIdstringoptionalYour internal reference. Used as the idempotency key.
ClientIdGuidrequiredThe A8 Core™ Client ID that owns the account.
AccountTypeCodestringrequiredMust be stablecoin-account.
ExternalPlanIdentifierstringrequiredIdentifier of the external plan being serviced. A8 Core™ holds no assets.

Example

POST https://api.a8core.io/v1/accounts
"ProviderReferenceId": "acct-10293",
"ClientId": "8fa2c1e4-5b6d-4f3a-9c2e-7d1a2b3c4d5e",
"AccountTypeCode": "stablecoin-account",
"ExternalPlanIdentifier": "CA-SCHOLARSHARE-529"
200 OK
"RequestId": 1736472901835,
"Status": 1,
"AccountId": "3c7b1f90-2a44-4e21-8d6c-9b0e5a1f7c22"

Errors

ErrorCodeMeaning
InstitutionNotAuthorizedForAccountTypeThe institution does not hold every authority this type requires.
ClientNotFoundNo client matches the supplied ClientId.

Rules that govern this type

  • Reserved. Not enabled. The GENIUS Act restricts custody of payment-stablecoin reserves to supervised entities and bars commingling. Implementing rules are proposed, not final.
  • Custodying a customer’s stablecoins is a different activity, under a different provision, from custodying an issuer’s reserves.
← 529-servicing

Tax reporting

The federal and state forms and obligations this account type carries, from the coverage registry — stated as designed.

  • 1099-DA
  • 1099-INT
  • 1099-MISC
  • 945
  • 1042-S / 1042
  • W-9 / W-8BEN / W-8BEN-E
  • TIN Matching
  • CP2100/CP2100A (B-notice) & backup withholding
  • Corrections (1099/5498 series)
  • 8809
  • State information returns
  • State unclaimed property
  • (inside an IRA wrapper: 5498/1099-R at the IRA level; no 1099-DA)

Every form is produced from ledger facts, filed through its transport (IRIS, MeF, EFAST2, EFTPS, IDES, CF/SF, state portals) and delivered with evidence. See tax forms by account type and tax data & reporting.

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