CSPX vs SPYL vs VUAA: Which S&P 500 ETF Should Singapore Investors Buy? (2026)

A complete cost and tax comparison for Singapore investors — TER, withholding tax, AUM, and real SGD impact at every portfolio size.

For Singapore investors buying an S&P 500 UCITS ETF on the London Stock Exchange, SPYL (SPDR, TER 0.03%) has the lowest management fee, while CSPX (iShares, TER 0.07%) and VUAA (Vanguard, TER 0.07%) offer larger AUM and longer track records. All three are Ireland-domiciled, accumulating ETFs — meaning you pay 15% withholding tax (not 30%) and face zero US estate tax risk. For most Singapore investors, SPYL saves the most in annual fees, but CSPX’s massive liquidity and brand recognition make it the default choice for larger portfolios.

Not financial advice. All figures are for educational reference only. Data as at April 2026 unless noted.

Table of Contents

Quick Answer: CSPX vs SPYL vs VUAA

All three ETFs track the S&P 500, are Ireland-domiciled UCITS funds listed on the London Stock Exchange (LSE), and are structured as accumulating (dividends reinvested, not paid out). This means the tax comparison that matters most to Singapore investors — US estate tax and withholding tax (WHT) — is identical across all three. The real differentiator is the Total Expense Ratio (TER) and the maturity of the fund.

Bottom line by investor type:

• Cost-conscious investors: SPYL wins on TER at 0.03% p.a. — the lowest of the three
• Established track record: CSPX (launched 2010) and VUAA (launched 2019) have longer histories than SPYL (launched October 2023)
• Largest fund by AUM: VUAA (~USD 80B) and CSPX (~USD 80B+) dwarf SPYL (~USD 13.5B) — though SPYL is growing fast
• Default pick for most SG investors: CSPX remains the most widely discussed and broker-supported on Singapore forums and platforms

Key Differences at a Glance

Here is a full side-by-side comparison of all three ETFs on the metrics that matter to a Singapore investor buying on the LSE:

Source: iShares, State Street SPDR, Vanguard fund factsheets, April 2026

Tax & WHT Comparison for Singapore Investors

The most important tax consideration for Singapore investors buying US equity ETFs is the structure of the fund, not the ticker. Because CSPX, SPYL, and VUAA are all Ireland-domiciled UCITS ETFs, they benefit from the Ireland–US tax treaty, which caps the withholding tax (WHT) on US dividends paid into the fund at 15% — half the 30% rate applied to US-domiciled ETFs like VOO or SPY.

Additionally, because all three ETFs are accumulating, dividends are reinvested inside the fund and never distributed to you. This means Singapore investors pay no further WHT at the investor level — you simply benefit from the fund’s 15% gross WHT, which is far more efficient than the 30% hit on a US-domiciled equivalent.

The other critical risk — US estate tax — also applies equally (or rather, does not apply) to all three. US estate tax applies to the US-situs assets of non-US persons, and affects holdings in US-domiciled ETFs above USD 60,000. Ireland-domiciled ETFs like CSPX, SPYL, and VUAA are not considered US-situs assets, so Singapore investors have zero estate tax exposure regardless of portfolio size.

Source: Ireland–US Double Tax Treaty; IRS Publication 515; MAS guidelines, April 2026

For a Singapore investor building a retirement portfolio, this tax equivalence across CSPX, SPYL, and VUAA means the decision comes down almost entirely to cost and fund maturity — which we cover next.

Total Cost Drag: TER + Withholding Tax

While the WHT rate is the same for all three ETFs, the TER creates a real difference in annual returns. Here is how the numbers break down:

• CSPX TER: 0.07% p.a.
• SPYL TER: 0.03% p.a. — 0.04% lower than CSPX/VUAA
• VUAA TER: 0.07% p.a.

The WHT drag is identical across all three. The S&P 500 yields approximately 1.3–1.5% in dividends annually (as at April 2026). At a 15% WHT rate, this creates an estimated annual drag of 0.195%–0.225% for all three funds equally — so it does not differentiate them.

Original calculation — total annual cost drag comparison:

• CSPX: 0.07% (TER) + ~0.21% (WHT drag) = ~0.28% total
• SPYL: 0.03% (TER) + ~0.21% (WHT drag) = ~0.24% total
• VUAA: 0.07% (TER) + ~0.21% (WHT drag) = ~0.28% total

SPYL’s total cost drag is approximately 0.04% lower than CSPX and VUAA — a meaningful difference that compounds significantly over a long investment horizon. Over 20 years on a SGD 200,000 portfolio, that 0.04% TER saving translates to roughly SGD 2,400–3,500 more in your pocket (assuming 8% gross annual returns), due to compounding.

For investors building passive income in Singapore, these cost savings add up — even if they seem small on a per-year basis. As your portfolio grows, so does the dollar impact of that TER difference. You can use the Singapore retirement calculator to model the long-term compounding impact of different expense ratios on your portfolio.

Real SGD Cost Impact by Portfolio Size

Here is the annual TER cost in Singapore dollars for each ETF at common portfolio sizes (converted at USD/SGD 1.35, April 2026):

TER costs converted at USD/SGD 1.35 | Source: Fund factsheets, April 2026 | For illustration only — actual costs depend on NAV and FX rate at time of investment

At SGD 100,000, SPYL saves you approximately S$54 per year versus CSPX or VUAA. Over 20 years (with reinvestment), that saving compounds meaningfully. For investors also tracking passive income in Singapore, every basis point of cost saved is a basis point that stays invested and working for you.

Historical Performance Comparison

Because all three ETFs track the same index — the S&P 500 — their performance is nearly identical over matching time periods. The only material difference comes from TER drag, which causes CSPX and VUAA to trail SPYL by approximately 0.04% per year in net return.

SPYL launched in October 2023, so direct multi-year comparison data is limited. However, using the S&P 500 as the common benchmark:

• S&P 500 (gross): ~23% in 2023, ~25% in 2024 (USD terms)
• CSPX net return (after 0.07% TER + WHT): Closely tracks the index net of costs
• SPYL net return (after 0.03% TER + WHT): Expected to outperform CSPX by ~0.04% per year over long periods
• VUAA net return (after 0.07% TER + WHT): Virtually identical to CSPX performance

For Singapore investors, the performance question is largely settled: same index, same domicile, same WHT — the only variable is TER, and SPYL wins on that metric.

Note: All three ETFs carry market risk. The S&P 500 is a large-cap US equity index and can experience significant drawdowns. As an example, the index fell approximately 19% in 2022. Past performance is not an indicator of future returns. Singapore investors interested in diversifying beyond US equities may also consider the Singapore REIT ETF guide for local exposure.

Liquidity and AUM

Fund size matters for two reasons: it affects the bid-ask spread (and therefore your transaction cost each time you buy or sell), and it signals the fund’s likelihood of continuing to operate over the long term. Larger funds are more liquid and have lower closure risk.

• CSPX: ~USD 80B+ AUM — one of the largest UCITS ETFs in the world. Extremely liquid on the LSE, tight spreads
• VUAA: ~USD 80B AUM — similarly large, excellent liquidity
• SPYL: ~USD 13.5B AUM (as at March 2026) — smaller but growing rapidly since its October 2023 launch. Liquidity is adequate for most retail investors but spreads may be slightly wider than CSPX/VUAA during off-peak trading hours

For Singapore investors making large regular investments (e.g. SGD 5,000–10,000 per month), CSPX and VUAA’s deeper liquidity pool is an advantage. For smaller regular investors (SGD 500–2,000 per month), SPYL’s liquidity is more than sufficient and the lower TER wins.

Who Should Pick Which ETF?

SPYL is ideal if you:

• Want the lowest possible expense ratio on an S&P 500 UCITS ETF
• Are a long-term buy-and-hold investor who won’t be actively trading
• Are comfortable with a newer fund (launched 2023) backed by a major institution (State Street)
• Are investing smaller amounts where CSPX/VUAA’s liquidity advantage is irrelevant

CSPX is ideal if you:

• Want the longest track record (launched 2010) and maximum liquidity on the LSE
• Are making very large trades where the tightest possible bid-ask spread matters
• Prefer the BlackRock/iShares brand and ecosystem for fund reporting
• Are already invested in CSPX and want to avoid the administrative hassle of switching

VUAA is ideal if you:

• Prefer Vanguard’s investor-owned structure and philosophy
• Want similar liquidity to CSPX but prefer Vanguard as the fund manager
• Are using a platform that has better support for Vanguard products specifically

From a CPF investment strategy perspective, note that none of these three ETFs — CSPX, SPYL, or VUAA — are eligible for CPF-OA investment, as they are not listed on the SGX. They are, however, generally compatible with SRS (Supplementary Retirement Scheme) accounts if purchased through an SRS-eligible broker.

How to Buy These ETFs in Singapore (Step-by-Step)

All three ETFs trade on the London Stock Exchange in USD. You’ll need a brokerage account that provides LSE access. The most cost-effective options for Singapore investors are:

1. Interactive Brokers (IBKR)
Best for: Large portfolios (SGD 50,000+). Commission from USD 0 (IBKR Lite) or USD 1.70 per trade (IBKR Pro). No platform fee. Lowest FX conversion cost among major brokers. Search for CSPX, SPYL, or VUAA on the LSE exchange.

2. Saxo Markets Singapore
Best for: Mid-size portfolios. Commission from USD 3 per LSE trade. Clean interface, direct LSE access. Well-established in Singapore.

3. Syfe Brokerage
Best for: Beginners and small regular investors. Simple interface, fractional investing available on some securities. Use the Syfe referral code for sign-up bonuses when you open a new account.

4. FSMOne
Best for: Investors who want a Singapore-based platform with LSE access. Use the FSMOne referral code for fee rebates. RSP (Regular Savings Plan) available for some ETFs.

Step-by-step process (same for all three ETFs):

1. Open and fund your brokerage account in SGD or USD
2. Convert SGD to USD (or GBP if your broker prices LSE stocks in GBP)
3. Search for the ticker: CSPX, SPYL, or VUAA — select the LSE exchange
4. Place a limit order at or near the ask price to control your entry cost
5. Confirm the trade — settlement is T+2 for LSE securities
6. Reinvestment is automatic (accumulating structure — no action needed)

If you are also exploring dividend-paying alternatives for retirement income, the best S-REITs in Singapore 2026 article covers high-yield options that complement an S&P 500 ETF allocation.

Disclaimer: This article is for educational purposes only and does not constitute financial advice. All data is sourced from publicly available fund factsheets and is accurate as at April 2026. Past performance is not indicative of future results. Please consult a licensed financial adviser before making investment decisions.

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