Sustainable investing is the fastest-growing segment of Swiss pillar 3a. Nearly every provider now offers some form of "green" or "ESG" strategy. The problem? The label "sustainable" means wildly different things depending on who's using it, and the fee differences between providers are enormous.
What Are Sustainable Pillar 3a Investment Funds?
Sustainable 3a funds are pillar 3a investment products that apply environmental, social, and governance (ESG) criteria to their stock and bond selection. Instead of investing in every company in an index, these funds exclude or underweight companies that fail certain sustainability standards.
ESG stands for three pillars of assessment:
- Environmental: Carbon emissions, pollution, renewable energy use, waste management
- Social: Labor practices, diversity, human rights, community impact
- Governance: Board independence, executive pay, anti-corruption, shareholder rights
In the Swiss 3a context, sustainable funds typically work in one of three ways. The most common approach is ESG integration, where fund managers incorporate ESG scores into their existing investment process. Then there's exclusion screening, where specific industries (weapons, tobacco, fossil fuels) are removed entirely. The third approach is impact investing, where capital is deliberately directed toward companies making measurable positive change.
Here's what matters: all three approaches still aim to generate competitive returns. Sustainable investing in your 3a doesn't mean sacrificing performance. It means being more selective about where your retirement money goes. All 3a funds, sustainable or not, must comply with FINMA regulations and the BVV2 investment guidelines.
Which Swiss Providers Offer Sustainable 3a Funds?
The good news is you have plenty of options. The bad news is the quality and cost vary dramatically. Here's the landscape broken down by provider type.
Digital Providers
These are your best options if you want sustainability without overpaying.
Finpension Nachhaltig offers sustainable strategies from 0% to 99% equities using passive ESG index funds from UBS and Swisscanto. All-in fees are just 0.39-0.42% per year. Finpension's sustainable strategies use the same low-cost fund structure as their standard strategies, so you're not paying a "green premium."
VIAC Global Nachhaltig provides sustainable strategies from 5% to 99% equities at 0.42-0.43% all-in fees. VIAC labels these "Global Nachhaltig" (Global Sustainable) and uses ESG-screened index funds. Performance has been comparable to their standard Global strategies.
frankly Responsible is Zurich Cantonal Bank's digital 3a platform. They offer "Responsible" variants at every risk level (15% to 95% equities) for a flat 0.44% fee. frankly uses Swisscanto's actively managed responsible funds.
Bottom line: For most people, one of these three is the right choice. You get genuine ESG screening at fees comparable to non-sustainable options.
Specialist Providers
These providers make sustainability their entire identity, but you pay more for it.
Inyova takes a different approach entirely. Instead of buying ESG-screened index funds, Inyova practices impact investing with direct stock ownership. You own individual shares in companies selected for their sustainability impact, and Inyova exercises shareholder voting rights on your behalf. Fees are around 0.8-1.2% per year, significantly higher than digital providers.
Liberty Green (LibertyGreen.ch) offers a "green pillar 3a" with a portfolio of individual companies meeting ecological, social, and ethical standards. They ranked #1 on Google for "nachhaltige Säule 3a Fonds," so they clearly have brand recognition in this space.
The trade-off: Higher fees and less diversification, but more direct impact. If you believe shareholder activism genuinely changes corporate behavior, these providers align with that philosophy.
Traditional Banks
Traditional banks offer sustainable funds, but fees are significantly higher.
UBS Vitainvest Sustainable funds come in 25%, 50%, 75%, and 100% equity variants. They're actively managed and typically cost around 1.0-1.3% per year. The 1-year performance of UBS Vitainvest World 100 Sustainable was 9.14%, competitive with cheaper alternatives.
PostFinance PF Pension ESG funds range from 25% to 100% equities with TERs between 1.13% and 1.26%. These are actively managed and use PostFinance's own ESG criteria.
BKB/Bank Cler Nachhaltig funds range from conservative (32% stocks) to aggressive (97% stocks) with TERs around 1.22-1.27%. These are some of the most expensive sustainable 3a options on the market.
The reality: You're paying 2-3x more in fees compared to digital providers, and there's no evidence that the extra cost translates into better sustainability outcomes or better returns.
These are your best options if you want sustainability without overpaying.
Finpension Nachhaltig offers sustainable strategies from 0% to 99% equities using passive ESG index funds from UBS and Swisscanto. All-in fees are just 0.39-0.42% per year. Finpension's sustainable strategies use the same low-cost fund structure as their standard strategies, so you're not paying a "green premium."
VIAC Global Nachhaltig provides sustainable strategies from 5% to 99% equities at 0.42-0.43% all-in fees. VIAC labels these "Global Nachhaltig" (Global Sustainable) and uses ESG-screened index funds. Performance has been comparable to their standard Global strategies.
frankly Responsible is Zurich Cantonal Bank's digital 3a platform. They offer "Responsible" variants at every risk level (15% to 95% equities) for a flat 0.44% fee. frankly uses Swisscanto's actively managed responsible funds.
Bottom line: For most people, one of these three is the right choice. You get genuine ESG screening at fees comparable to non-sustainable options.
These providers make sustainability their entire identity, but you pay more for it.
Inyova takes a different approach entirely. Instead of buying ESG-screened index funds, Inyova practices impact investing with direct stock ownership. You own individual shares in companies selected for their sustainability impact, and Inyova exercises shareholder voting rights on your behalf. Fees are around 0.8-1.2% per year, significantly higher than digital providers.
Liberty Green (LibertyGreen.ch) offers a "green pillar 3a" with a portfolio of individual companies meeting ecological, social, and ethical standards. They ranked #1 on Google for "nachhaltige Säule 3a Fonds," so they clearly have brand recognition in this space.
The trade-off: Higher fees and less diversification, but more direct impact. If you believe shareholder activism genuinely changes corporate behavior, these providers align with that philosophy.
Traditional banks offer sustainable funds, but fees are significantly higher.
UBS Vitainvest Sustainable funds come in 25%, 50%, 75%, and 100% equity variants. They're actively managed and typically cost around 1.0-1.3% per year. The 1-year performance of UBS Vitainvest World 100 Sustainable was 9.14%, competitive with cheaper alternatives.
PostFinance PF Pension ESG funds range from 25% to 100% equities with TERs between 1.13% and 1.26%. These are actively managed and use PostFinance's own ESG criteria.
BKB/Bank Cler Nachhaltig funds range from conservative (32% stocks) to aggressive (97% stocks) with TERs around 1.22-1.27%. These are some of the most expensive sustainable 3a options on the market.
The reality: You're paying 2-3x more in fees compared to digital providers, and there's no evidence that the extra cost translates into better sustainability outcomes or better returns.
How Do Sustainable 3a Fund Fees Compare?
Fees are the single most controllable factor in your long-term returns. Here's how the major sustainable 3a options stack up at a high equity allocation (75-100% stocks):
All-in: 0.39-0.42%/year
99% equity, passive ESG index funds. No currency exchange fees. The cheapest sustainable 3a option available.
All-in: 0.42-0.43%/year
99% equity, passive ESG index funds. Slight currency exchange margin applies. Strong brand trust.
All-in: 0.44%/year
95% equity, actively managed Swisscanto Responsible funds. Backed by Zurich Cantonal Bank.
Compare that to traditional bank options: PostFinance ESG 100 at 1.26%, BKB Nachhaltig Aktien at 1.26%, or UBS Vitainvest Sustainable at roughly 1.0%. Over 30 years of maximum 3a contributions (CHF 7,258/year), a fee difference of 0.8% annually compounds to roughly CHF 30,000-40,000 less in your retirement account.
That's the real cost of choosing a "sustainable" fund from your traditional bank instead of a digital provider. For a deeper dive into all 3a fund costs, check our complete fee comparison.
Do Sustainable 3a Funds Perform Worse Than Standard Funds?
This is the question everyone asks, and the answer is more nuanced than the marketing materials suggest.
Looking at recent data from the three major digital providers, sustainable strategies have performed virtually identically to their non-sustainable counterparts:
- Finpension Nachhaltig 100 returned 9.22% in 2023 vs. 9.23% for Global 100
- VIAC Global Nachhaltig 100 returned 9.15% vs. 8.50% for Global 100 (sustainable actually outperformed)
- VIAC Global Nachhaltig 80 returned 8.40% vs. 7.65% for Global 80
Over 5 years, the differences are similarly negligible. Finpension Nachhaltig 100 delivered 7.89% annualized vs. 7.93% for the standard Global 100. We're talking about a few basis points of difference, which is statistical noise.
Why the performance is so similar: ESG screening in index funds typically removes a small number of companies from a broad universe. When you exclude fossil fuel companies but keep everything else, the portfolio looks very similar to the standard index. The excluded companies' weight gets redistributed to the remaining holdings.
The exception: Specialist providers like Inyova that use concentrated portfolios of 30-40 individual stocks will show more performance divergence from broad indices, both up and down. That's not necessarily good or bad, just different.
For full historical returns across all providers and strategies, see our fund performance comparison.
What Does "Sustainable" Actually Mean in Your 3a?
Here's where it gets uncomfortable. A 2024 study by the Swiss Federal Office for the Environment (BAFU) found that many 3a funds marketed as sustainable only consider financial materiality, not actual environmental or social impact. In other words, they assess how climate change affects profits, not how the companies affect the climate.
The study examined sustainability claims across Swiss 3a providers and found significant variation in what "sustainable" actually means in practice. Some providers use basic ESG integration that barely changes the portfolio composition. Others apply strict exclusion criteria. A few actually practice active engagement with the companies they invest in.
Three levels of sustainability commitment you'll find:
- ESG Integration (most common): The fund manager considers ESG factors alongside financial analysis. This is the minimum bar and often changes very little about the actual portfolio. Most funds from UBS, PostFinance, and Swisscanto fall here.
- Exclusion + Best-in-Class: The fund excludes controversial sectors entirely (weapons, tobacco, thermal coal) and then selects the best-performing ESG companies within each remaining sector. Finpension, VIAC, and frankly use this approach through their ESG index funds.
- Impact Investing: Capital is actively directed toward companies making measurable positive change, with engagement and shareholder voting. Inyova is the main Swiss 3a provider using this approach.
The honest truth: If you're choosing between Finpension Nachhaltig and Finpension Global (standard), the sustainability difference is real but modest. You're excluding the worst offenders and slightly tilting toward better-rated companies. If you want your money to actively drive change, you need a specialist like Inyova, and you'll pay more for it.
How to Choose the Right Sustainable 3a Fund
Your choice depends on what you're optimizing for. Be honest with yourself about your priorities.
Are you primarily optimizing for returns with a sustainability overlay? Or are you willing to pay higher fees for deeper environmental impact? Most people fall into the first camp, even if they don't want to admit it. That's fine. A low-cost ESG fund from Finpension or VIAC still excludes the worst polluters and weapons manufacturers.
At similar equity levels, the fee differences between providers are enormous. Finpension charges 0.39% for sustainable. Your traditional bank might charge 1.2%+. Over 30 years, that gap eats CHF 30,000-40,000 of your retirement savings. No amount of "sustainability" justifies throwing away that much money in fees.
Your stock-to-bond ratio matters far more than whether you pick "sustainable" or "standard." A 95% equity sustainable fund will massively outperform a 45% equity standard fund over 20+ years. Get the strategy right first, then add the sustainability filter. Read our strategy guide for age-based recommendations.
Don't let the perfect be the enemy of the good. Any sustainable fund at a low-cost digital provider is a better choice than leaving your 3a in a savings account earning 0.5% while you research which fund has the purest ESG methodology. Start now, optimize later.
Common Mistakes with Sustainable 3a Investing
Some investors assume their bank's sustainable fund is worth the extra 0.8-1.0% in annual fees because it's "greener." In reality, the ESG screening methodology at UBS or PostFinance isn't meaningfully stricter than what Finpension or VIAC use through the same underlying index funds. You're paying triple the fees for essentially the same sustainability outcome. Switch to a digital provider and keep the fee savings for yourself.
A sustainable fund at 25% equities will dramatically underperform a standard fund at 95% equities. If you're 30 years old with decades until retirement, your equity allocation is the most important decision, not the ESG label. Pick the right risk level first, then apply the sustainability filter within that allocation.
The term ESG has been diluted by marketing. As the Swiss Federal Office for the Environment found, many funds labeled "sustainable" only consider how environmental risks affect the company's bottom line, not how the company affects the environment. If deep sustainability matters to you, look beyond the label at the actual methodology.
The sustainable investing space is evolving rapidly, and new providers launch regularly. But constantly switching your 3a provider has real costs: potential exit fees, time out of the market during transfers, and administrative hassle. Pick a solid low-cost provider, commit, and revisit your choice every 2-3 years at most.
My Recommendation for Sustainable 3a Investing
After researching every sustainable 3a option on the Swiss market, my recommendation is simple: pick a low-cost digital provider with a sustainable strategy at your target equity allocation.
For most people, that means Finpension Nachhaltig or VIAC Global Nachhaltig at 80-99% equities. The fees are nearly identical to standard strategies (0.39-0.43%), the ESG screening is genuine (not just marketing), and the performance tracks very closely to non-sustainable options.
If you feel strongly about impact investing and are willing to pay more, Inyova is the most credible option in Switzerland. They do actual shareholder engagement, not just screening. But be aware that you're paying roughly 3x the fees of Finpension for a concentrated portfolio with more volatility.
What I wouldn't do: pay 1.2% at your bank for a "sustainable" fund that uses essentially the same ESG criteria as a 0.39% option from Finpension. That's not values-based investing. That's subsidizing your bank's marketing department.
Frequently Asked Questions
Do sustainable 3a funds have lower returns than standard funds?
No. Data from the major Swiss 3a providers shows that sustainable strategies perform almost identically to their standard counterparts. For example, Finpension Nachhaltig 100 returned 7.89% annualized over 5 years vs. 7.93% for the standard Global 100. The difference is negligible and can go either direction in any given year. ESG screening removes a small number of companies from broad indices, which has minimal impact on overall returns.
What is the cheapest sustainable pillar 3a fund in Switzerland?
Finpension Nachhaltig strategies are the cheapest at 0.39-0.42% all-in annual fees. VIAC Global Nachhaltig is a close second at 0.42-0.43%. Both use passive ESG index funds. By comparison, traditional bank sustainable funds from UBS, PostFinance, or BKB typically cost 1.0-1.3% per year, roughly three times more.
Is Inyova a good choice for a sustainable pillar 3a?
Inyova is the most credible impact investing option for Swiss 3a. They use direct stock ownership and exercise shareholder voting rights, which goes beyond standard ESG screening. However, fees are significantly higher (around 0.8-1.2%) and the portfolio is concentrated in 30-40 individual stocks, meaning more volatility. Inyova is best for investors who prioritize impact over cost optimization.
What does ESG mean in pillar 3a funds?
ESG stands for Environmental, Social, and Governance. These are the three categories used to evaluate a company's sustainability practices. In Swiss 3a funds, ESG criteria are used to screen investments: excluding companies that score poorly on environmental impact, labor practices, or corporate governance. The specifics vary by provider, from basic integration to strict exclusion to active impact investing.
Can I switch my existing 3a fund to a sustainable option?
Yes. Most digital providers (Finpension, VIAC, frankly) let you switch between standard and sustainable strategies with a few taps in their app, usually at no extra cost. If you're switching from a traditional bank to a digital provider, you'll need to initiate a 3a transfer, which typically takes 2-4 weeks. There may be exit fees from your current provider, so check before transferring.
