Solana Devnet · Anchor Protocol · Author - TBC

Compliant Cross-Border
Payments on Solana

The first on-chain compliance middleware for institutional stablecoin transfers. Automatic tax withholding, OFAC screening, and cryptographic audit trails — all enforced at the smart contract level.

Wallet ↗CFO DashboardRead the Docs →
$0 USDC
Volume settled on-chain
$0 USDC
Tax withheld · IRS + CBDT
0%
OFAC compliance rate
< 0.4s
Settlement finality
The Problem

$150 trillion in annual cross-border flows — zero on-chain compliance

Every international stablecoin transfer today is a compliance black box. Financial institutions route payments through correspondent banking networks that can take 3–5 days, charge 2–7% in fees, and produce paper audit trails that require manual reconciliation for tax filings under FATCA, FBAR, TDS, and GST frameworks.

There is no programmable mechanism to embed withholding tax, KYC/AML context, or OFAC sanction screening at the transaction layer — until now.

3–5 day settlement via SWIFT
Correspondent banking latency
💸
2–7% transfer fees
FOREX spread + correspondent markup
📄
Manual tax reconciliation
FATCA, TDS, FBAR filings by hand
🚫
No programmatic OFAC screening
Reactive compliance, post-settlement
🔍
Opaque audit trails
No cryptographic proof of compliance
Architecture

Three-layer compliance protocol

Off-chain screening middleware + on-chain enforcement + immutable audit events. Compliance is not an afterthought — it is the transaction.

SenderUS EntityPhantom WalletCompliance SDKOFAC ScreeningTax CalculationMemo TaggingTX ConstructionAnchor ProgramMint ValidationCPI Tax SplitsEvent EmissionAudit TrailUS TreasuryIRS / FATCAIN TreasuryCBDT / TDSReceiverIN Entity · ATAinitiatesign TX5% sender10% rcvrnet
01SDK Middleware
OFAC/SDN list screening
Bilateral tax computation
Transaction context tagging
Solana TX construction
02Anchor Smart Contract
Mint & ownership validation
Atomic 3-way CPI split
MathOverflow protection
CompliantTransferEvent
03Treasury Routing
US Treasury ATA (IRS/FATCA)
IN Treasury ATA (CBDT/TDS)
Jurisdiction-aware disbursement
Immutable on-chain receipts
Features

Built for institutional-grade compliance

🛡️
Real-Time OFAC ScreeningAML

Every transaction is pre-screened against the OFAC SDN list before hitting the Solana network. Blocked addresses are rejected at the middleware layer with a logged audit event — zero chain gas wasted on non-compliant transfers.

🧾
Programmable Tax WithholdingTax

Sender-side and receiver-side withholding taxes are computed off-chain, enforced on-chain via CPI, and routed to jurisdiction-specific treasury accounts — fully analogous to TDS under Section 195 of the Indian Income Tax Act and FATCA reporting obligations.

🔗
Cryptographic Audit TrailAudit

The Anchor program emits a CompliantTransferEvent on every successful transfer, permanently recording: sender, receiver, category, tax amounts, regions, and block timestamp. Immutable. Verifiable. Auditor-ready.

📊
CFO Dashboard + CSV ExportReporting

One-click ledger export formats your entire transaction history as a CSV structured for IRS Schedule B, Form 1042-S (US), or Form 26Q (India). Hand it to your tax authority and walk away.

💱
Live Fiat ConversionMulti-currency

Every USDC value on the dashboard converts in real-time to USD, INR, EUR, or GBP using live forex rates. US tax collected shows as $125 USD. IN tax shows as ₹10,428 INR. The cross-border narrative is immediately apparent.

Sub-Second FinalitySolana

Settlement is final in under 400ms on Solana — versus 3–5 business days on SWIFT. No correspondent banking delays, no nostro/vostro account pre-funding, no cut-off windows. The cross-border payment is atomic.

Comparison

StableCompliance vs. Legacy Rails

Capability
Legacy / SWIFT
StableCompliance
Settlement time
3–5 business days
< 400ms final
Transfer cost
2–7% (FX + fees)
~$0.0003 Solana fee
OFAC screening
Manual / batch (T+1)
Real-time, pre-chain
Tax withholding
Manual IRS / CBDT filings
Automatic, on-chain CPI
Audit trail
PDF statements, 90-day reconciliation
Immutable on-chain event, instant
Cross-border compliance
Correspondent bank discretion
Protocol-enforced, jurisdiction-aware
API integration
ISO 20022 / MT103 messages
npm install, 3 lines of SDK
Use Cases

Institutional applications

Cross-Border Payroll (US → IN)Section 195 / FATCA

US multinationals with India-based engineering teams can pay salaries in Custom stablecoin (instUSD) with automatic 5% sender-side TDS and 10% receiver-side deduction, fully compliant with Section 195 of the Income Tax Act and FATCA Form 1042-S reporting requirements.

Ctx:Salary|Out:125|In:250 · routed to CBDT ATA
Vendor & Contractor PaymentsFBAR / Form 8938

B2B payments to overseas vendors are tagged with category context (Vendor, SaaS, Consulting) and emit a verifiable on-chain receipt. Finance teams can generate FBAR-compliant foreign account disclosures directly from chain data.

Ctx:Vendor|Out:0|In:0 · zero-tax compliant
DAOs & Protocol TreasuriesTreasury Management

DeFi protocols and DAOs disbursing grants or contributor rewards across jurisdictions can use StableCompliance to ensure every outflow meets tax treaty obligations and is documented with an immutable on-chain event, reducing legal exposure.

Programmable treasury governance
Remittance & Consumer FinanceVASP / FATF Travel Rule

Fintech companies serving the $800B annual remittance market can embed StableCompliance into their transfer infrastructure to satisfy FATF Travel Rule obligations, VASP registration requirements, and FinCEN money transmission licensing at the protocol layer.

Built-in KYC context tagging

The future of compliant institutional finance is on-chain

StableCompliance is the first protocol to make cross-border tax compliance programmable, atomic, and audit-ready — without banks, without manual reconciliation, without waiting 5 business days.

Launch AppRead the DocsGitHub ↗
Devnet Testbed

Try it live — no wallet setup required

Fund any Phantom wallet on Solana Devnet with 1,000 instUSD and immediately test a compliant cross-border transfer through the Employee Wallet — complete with OFAC screening, on-chain tax withholding, and a cryptographic audit event.

01Paste your Devnet address and receive 1,000 instUSD
02Open the Employee Wallet and connect Phantom
03Send a Salary transfer — watch tax split on-chain
04Inspect the CompliantTransferEvent on Explorer
🧪
Test Faucet
Solana Devnet · instUSD · no KYC

Need instUSD to test the Employee Wallet? Paste your Devnet address and receive 1000 instUSD instantly — no signup, no wait.

Recipient address