Reach millions of customers with Sika’s HSA/FSA commerce tools

Sika simplifies HSA/FSA customer acquisition with easy integration, LMN support, and enhanced marketplace visibility—helping you unlock new revenue and grow your business.

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116%

Increase in avg order value

5x

Increase in conversion

+20%

Larger cart size

75%

Decrease in return rate

Sika, The Smartest Way to Accept HSA/FSA Payments

Experience lightning-fast integration, seamless HSA/FSA checkout, and effortless growth to amplify your selling power.

Seamless HSA/FSA checkout

Effortless sales growth

Amplify your selling power

Lightning-fast integration

Seamless HSA/FSA checkout

Seamless HSA/FSA checkout

Customers simply choose Sika Health at checkout and enter their HSA/FSA card details. Mixed-eligibility carts and multiple payment methods are also processed in one smooth transaction.

Trusted by leading companies

From startups to Fortune 500s, leading companies across industries trust us to deliver innovative, reliable, and scalable solutions that drive real results.

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oura
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icebarrel
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knix
betterhelp
biolight
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therabody
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menkegel
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tomboyx
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Sign up with Sika Health to grow your customer base.

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Key Platform Features for Merchants

Hear from our satisfied customers and discover how SIKA is transforming their shopping experience.

Partial Payments

Partial
Payments

Seamlessly support transactions with multiple payment methods — whether it's a mixed cart of eligible and ineligible items or insufficient HSA/FSA funds at checkout.

Letter of Medical Necessity (LMN) Support

Letter of Medical
Necessity (LMN) Support

Enable users to secure LMNs to unlock purchases for dual-purpose products and services, with renewal support built in.

Subscription Support

Subscription
Support

Accept HSA/FSA cards for eligible recurring purchases like memberships, programs, and refills, with clear eligibility handling at every renewal.

Product & Service Eligibility Consultation

Product & Service
Eligibility Consultation

Get expert guidance on what qualifies — from fitness programs to supplements — with proactive tagging, compliance insights, and eligibility best practices.

Scalable & Reliable

Scalable &
Reliable

Built for growth. Our infrastructure supports enterprise volume with high uptime, fast performance, and adaptable integration models.

HIPAA & SOC 2 Compliance

HIPAA & SOC 2
Compliance

Designed with healthcare-grade privacy and security in mind. Full HIPAA and SOC 2 compliance underway to ensure data protection and trust at scale. (In Progress)

Auto-Substantiation and Audit support

Auto-Substantiation
and Audit support

Automatically verify eligible purchases with IIAS and other smart compliance logic — reducing documentation needs and improving user experience.

Service Excellence

Service
Excellence

Our dedicated team offers white-glove onboarding, merchant education, and responsive support — ensuring every partner feels prioritized.

Refund & Chargeback Support

Refund &
Chargeback Support

Minimize risk and streamline resolution with built-in tools for managing refunds, reversals, and chargebacks on HSA/FSA transactions.

HSA/FSA: Your Tax-Free Health Advantage

We believe that healthcare plans were meant to keep us healthy, in addition to
treating us when we are already ill.

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Taking the pain
out of HSA/FSA

Every year, shoppers contribute an estimated $175B into HSA/FSA accounts, but many struggle to spend those funds, largely due to complex and confusing payment processes. Sika Health is on a mission to ensure customers can access and spend their HSA/FSA funds on items they want, when they want, hassle-free!

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The frictionless HSA/FSA
payment gateway

Sika Health enables online shoppers to pay using their HSA/FSA funds. Customers simply select Sika Health's payment gateway at checkout, enter their HSA/FSA card details. We take care of the rest.

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Partnerships that power
seamless health spending

We partner with merchants, HSA/FSA administrators, and government regulators to enable shoppers to seamlessly invest in their health. Just look for Sika on product pages and at checkout and shop with confidence.

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Compliant infrastructure with a
world-class customer experience

Sika's solution is IRS compliant, tailor-made for e-commerce, and provides a world-class user experience. By using Sika Health, customers can shop knowing their HSA/FSA funds can be used. No receipts to file and no need to pay out-of-pocket and seek reimbursement.

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LMN Made Easy: Unlock Tax-Free Health Spending

A Letter of Medical Necessity (LMN) is a document written by a licensed healthcare provider stating that a product or service is medically required for a specific health condition.

It enables customers to use their HSA/FSA funds for products that aren’t automatically eligible, such as supplements, fitness gear, or wellness items.

Through Sika Health, the LMN process is fully digital—customers complete a short eligibility survey and intake form online.

A licensed provider reviews the case and, if appropriate, issues an LMN—usually within 12 business hours.

Customers can then use the LMN for HSA/FSA reimbursement by submitting it along with their purchase receipt.

Offering LMN support helps merchants expand their eligible product range, improve customer experience, and boost conversions on HSA/FSA purchases.

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Seamlessly Integrate Sika’s HSA/FSA on Your e-commerce Platform

Sika seamlessly integrates with any tech stack, from custom checkouts to no-code solutions, enabling quick setup, regulatory compliance, and personalized support tailored to your business needs.

Sika has an integration
option for you

Sika offers seamless integration options tailored to your needs. Whether you have a custom web checkout, WooCommerce store, Shopify store, or need a no-code solution, Sika easily fits into your tech stack.

Sika has an integration option for you

What merchants are saying

Hear from our satisfied customers and discover how Sika is transforming their
shopping experience.

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    Our partnership with Sika to enable HSA/FSA payments has been truly transformative for Oura. Sika guided us seamlessly through the entire process of eligibility, compliance, and enabling commerce. Now, our customers can use their HSA or FSA funds to purchase Oura Rings and memberships, expanding our customer base by making Oura Ring more accessible.

    Dor Kilroy

    Oura - Chief Commercial Officer
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    We’re excited to partner with Sika to expand access to our award-winning, scientifically backed wellness technology. Their expertise helps bring our innovative products to more consumers, enhancing well-being through accessible, cutting-edge solutions. Together, we’re making it easier for people to benefit from proven wellness tools that truly make a difference.

    Monty Sharma

    Therabody - Chief executive officer and President
  • testimonial-3

    Partnering with Sika Health to offer our products through pre-tax HSA/FSA dollars is a significant step in advancing Lola’s mission. This collaboration helps make our safe, clean, and accessible period and vaginal care more affordable and widely available, ensuring more people can prioritize their health without added financial stress.

    Kelly Murphy

    Lola - VP of Direct to Consumer and Amazon

Effortlessly tap into $175B+ in tax-free HSA/FSA spending with Sika Health.

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HSA/FSA

Frequently Asked Questions

To join Sika as a merchant, simply fill out our merchant application form. Once reviewed and approved, our team will guide you through onboarding, product eligibility, and listing setup.