Taiwan Investor RWA Tax Guide 2026: How to Report USDY, OUSG, BENJI — and What You Can Do Now

Taiwan's AMT calculation logic is particularly important for RWA investors. AMT calculation steps: sum 'basic income' = net comprehensive income + overseas income (amount exceeding NT$1M) + specific tax-exempt income. Basic income - NT$6.7M (exemption) = taxable basic income. Taxable basic income × 20% = AMT payable. If AMT payable > regular income tax payable, pay the difference. Practical example: Mr. Wang's regular income tax: NT$500K. Overseas income including USDY interest NT$800K + US stock dividends NT$600K = NT$1.4M (NT$400K exceeds threshold, included in AMT). Assumed basic income NT$4M < NT$6.7M exemption — no AMT. If USDY interest rises to NT$2M and total basic income exceeds NT$6.7M, the difference must be paid.

TWD exchange rate conversion's impact on tax calculations is the most easily overlooked detail for RWA investors. USDY example: January 2026, you buy 1,000 USDY using NT$30,000 (rate 30.5, approximately 983 USDC). December 31: USDY tokens increased to 1,044 (4.4% annualized rebase), USDC/TWD = 32.0 (TWD depreciation). Year-end USDY market value = 1,044 × 32.0 = NT$33,408. Annual overseas interest income = NT$33,408 − NT$30,000 = NT$3,408. Note: this NT$3,408 'gain' has two sources — USDY's interest gain and TWD depreciation exchange rate gain. When TWD appreciates, your TWD-calculated return may appear negative even if USDY itself is gaining. This shows why TWD investors holding USD-denominated assets should think using 'USD for actual returns, TWD for declared returns' dual tracking.

Three common misconceptions about Taiwan tax: Misconception 1: 'Operating directly through MetaMask means tax authorities won't know.' Fact: any BitoEX or MAX deposit/withdrawal record gives tax authorities a starting point. On-chain operations have no direct reporting mechanism, but on-chain data is public — from your Taiwan exchange withdrawal to MetaMask address to Ondo Finance operations, theoretically traceable. Misconception 2: 'Tokenized Treasury and Treasury ETF have the same tax treatment.' Fact: buying through sub-brokerage (00697B) has a relatively clear Taiwan tax framework; USDY/OUSG are overseas virtual assets with more uncertain tax classification — can't directly analogize to ETF tax treatment. Misconception 3: 'Annual income below NT$1M means completely ignore it.' Fact: below NT$1M overseas income isn't included in AMT, but still requires record-keeping. When tax authorities request explanation of sources in the future, no records is harder to handle than no declaration.

Facing tax uncertainty, Taiwan RWA investors' most reasonable overall strategy is 'record first, decide later.' Specifically: build records now (nearly zero cost, high benefit); wait for Taiwan tax authority official guidance (likely to emerge in 2026-2028 as VASP regulatory framework matures); with complete records, precise reporting is possible once official guidance arrives; if no past records, reconstructing historical records is possible though inconvenient (via Etherscan transaction history, platform history exports). Final note: tax uncertainty is a real risk for RWA investment in Taiwan, but not unique — many overseas digital financial instruments in Taiwan face the same tax grey zone. 'Conservatively declare as overseas income + build complete records + periodically consult tax advisors' is currently the most balanced approach.