Crypto Trading Tax Guide
Taiwan / Hong Kong / Singapore Comparison

The first question a lot of people ask after making money trading crypto is:"Do I owe tax? How is it calculated?"The answer differs dramatically by jurisdiction — Taiwan could hit 40%, Hong Kong is 0%, and Singapore is 0% (for individual investors).

This article walks through the tax differences, filing thresholds, and recommended tools across Taiwan, Hong Kong, and Singapore.

1. Three-Jurisdiction Tax Overview

2. Taiwan: Overseas Income + Alternative Minimum Tax

2.1 Basic Principle

The current prevailing interpretation from Taiwan's National Taxation Authority: gains from crypto trading are classified as "overseas income", subject to the "Alternative Minimum Tax (AMT) regime".

2.2 How the AMT is Calculated (2026 thresholds)

# Simplified logic (specific thresholds adjust yearly — check the latest)

Overseas income (including crypto PnL) + Domestic income = Basic income amount

If Basic income amount > TWD 7.5M:
    (excess portion) × 20% = Basic tax liability
    Compare to regular income tax, pay the higher of the two

→ Below TWD 7.5M: in practice no AMT owed
→ Above TWD 7.5M: every additional TWD 1M costs an extra TWD 200K

2.3 Common Pitfalls in Taiwan

• Thinking "if I never touched a Taiwan bank account I don't need to file". CRS exchanges info across countries, Binance and others have implemented KYC, and the tax authority probably already knows about your account.
• Treating USDT settlement as "not real money". For tax purposes, USDT is treated as equivalent to USD, and PnL is computed normally.
• Spreading across multiple exchanges to avoid filing. Wrong. Everything gets consolidated. Tools like Koinly exist precisely to consolidate for you.
• "If I haven't converted back to TWD, it's not realized". Wrong. The moment you sell BTC for USDT, it's realized.

2.4 Special Risk for High-Frequency Traders

If your trading frequency and size are high, you may be classified as "trading as a business", which means overseas income treatment no longer applies — instead you'd be on the regular progressive income tax (5–40%). There's interpretive flexibility in practice, so high-frequency / high-volume traders should consult a qualified accountant.

3. Hong Kong: Zero Tax + Profits Tax

3.1 Individual Investment

Hong Kong has no capital gains tax. Money individuals make investing in crypto is in the clear.

3.2 But "Business in Nature" Triggers Profits Tax

If the tax authority concludes you're "trading crypto as a business" (in the nature of trade), you owe 16.5% profits tax.

The criteria (IRD's six badges of trade):

1. Nature of the subject matter (crypto leans toward a trading-type asset)
2. Length of ownership
3. Frequency of transactions
4. Whether there's a commercial arrangement
5. Whether financing or leverage is used
6. Motive for sale

In practice: occasional trading / long-term holding = personal investing. Multiple trades per day / a trading system / formal bookkeeping = potentially classified as a business.

4. Singapore: Similar to Hong Kong, but Clearer

4.1 Individual Investment

Singapore has no capital gains tax. Individuals who hold and eventually sell crypto for long-term investment → owe nothing.

4.2 Business in Nature

If trading activity is deemed "trading nature", the income tax rate applies (individuals up to 24%, corporations 17%).

The factors are similar to Hong Kong — IRAS likewise looks at frequency, scale, and degree of organization.

4.3 GST (Goods and Services Tax)

Since 2020, individual crypto transactions are GST-exempt. Before then there was the bizarre rule that buying / selling crypto incurred 7% GST, but that's been repealed.

5. CRS: The Privacy You Thought You Had is Gone

The Common Reporting Standard (CRS)is an automatic financial-account information exchange system signed by 100+ countries.

Major exchanges (Binance, Coinbase, Kraken) — after running KYC — automatically report your account info to the tax authority of your residence country.

What that means in practice: "I use an overseas exchange so I don't have to file" was a pre-2018 move. Your tax authority probably already knows more than you think.

6. Tools: Koinly / CoinTracker / CoinTracking

What these tools do:

• Auto-connect to multiple exchanges and pull trade history
• Compute cost basis under FIFO / LIFO / HIFO matching methods
• Export reports in the format each country's tax authority expects (especially US / Canada / UK / Australia)
• Distinguish income types: trading / staking / mining / airdrop / DeFi

7. Practical Recommendations

7.1 Things Everyone Should Do, Regardless of Jurisdiction

1. Keep records: every trade, withdrawal, and deposit logged (export CSV monthly and archive)
2. Use tools: hook up Koinly from day one — don't wait a year and then try to clean it up
3. Distinguish "holding" from "trading": long-term holding versus frequent trading are treated completely differently
4. Consult an accountant before large amounts: once you're past a few million in profit, you absolutely need a professional

7.2 Extra Advice for High-Capital Taiwan Traders

• Consider an offshore entity (BVI / HK) to hold the position — but watch out for CFC rules
• High-frequency trading risks being classified as "trading as your main business"
• For annual income above TWD 7.5M, the 20% AMT really does need to be calculated

8. Three Key Takeaways

1. The three jurisdictions are wildly different: Taiwan may owe; HK / SG individual investing is 0%
2. CRS killed the "offshore account" privacy story. What needs to be filed still needs to be filed
3. Track from day one with proper tooling. Waiting a year to clean it up is hell