
Carat is the global commerce platform from Fiserv that orchestrates payments and experiences for the world's largest businesses, enabling leading brands to unify their commerce, optimize transactions, and imagine and realize new ways to engage with customers. The platform covers payment acceptance across all channels (in-person, online, mobile), payment optimization (higher approval rates, lower costs), global acquiring across 30+ countries, omnichannel data intelligence and reporting, digital payouts and disbursements, and a connected ecosystem of 30+ pre-certified third-party integrations. At the center is Commerce Hub (a single entry point through which clients can access solutions that optimize commerce flows, enable new experiences, and connect to third-party providers). Carat also offers innovative vertical-specific solutions, including a Delivery Optimization system connecting enterprises to 40+ delivery providers via a single API, and embedded finance capabilities for PayFacs, ISVs, and marketplaces.
The platform's strengths are its extraordinary scale and technical depth. Carat operates as a modular ecosystem, allowing clients to pick and choose components based on their specific needs. It supports Fiserv's own STAR and Accel debit networks for direct routing, multi-currency support across global markets, and enterprise-grade security with world-class encryption and tokenization. Carat clients include some of the world's most recognizable brands, including Microsoft, Google, Walmart, and ExxonMobil.
The weaknesses are pricing opacity, implementation complexity, and a customer support culture that falls short of the platform's technical promise. All pricing requires custom negotiation. Most of the information disclosed about Carat on the Fiserv website consists of empty marketing fluff rather than concrete, detailed information about what Carat can do. At the Fiserv parent level, merchants report continued unauthorized charges after account closure, funds held without explanation, and inability to reach relevant personnel for resolution. Better Business Bureau Small to mid-size businesses who find themselves on the Fiserv/Carat platform through acquisitions or resellers typically experience the worst service.
Carat from Fiserv is an enterprise-grade global commerce platform that orchestrates omnichannel payments, data intelligence, and customer experience solutions for the world's largest businesses, but hampered by opaque pricing, complex contracting, and a widespread customer service reputation that does not match its technological ambitions.
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Based on 1,456 reviews across 3 rating platforms
Reviews describe intentionally difficult-to-read monthly statements, $500 cancellation fees, fund holds lasting weeks, unauthorized charges after account closure, and account managers who do not respond to emails or calls. Fiserv responds to all complaints.
Reviews describe dreadful customer service, unresponsive complaint handling, equipment leasing practices where merchants were not told they could buy equipment (leading to expensive multi-year leases), and continued charges after cancellation.
Mixed; enterprise reviewers acknowledge Fiserv's global reach and scale; complaints focus on high pricing and customer service quality.
Card-not-present, e-commerce, and online payments
Card-present retail and point-of-sale transactions
Manually entered card-not-present transactions
Cross-border and foreign currency transactions
Recurring monthly account fee
One-time account setup and onboarding fee
Annual PCI DSS compliance and security fee
Monthly account statement and reporting fee
Per-incident chargeback dispute fee
Fee for canceling before contract end
Regular deposit schedule to your bank account
Faster deposit option (may have additional fees)
Minimum balance required before payout
Required commitment period
Multi-year
How to terminate your account
Specific terms are not publicly disclosed and are negotiated individually. Multiple BBB complaints document merchants being charged months after account closure and extreme difficulty completing the cancellation process.
Payment Card Industry Data Security Standard compliance level
PCI Level 1 certified (highest level)
Fraud detection and prevention tools
Real-time transaction scoring, behavior analysis, chargeback protection tools; proprietary risk management
Encryption standards for data at rest and in transit
End-to-end encryption
Replace sensitive card data with secure tokens
Compatible shopping cart and online store platforms
Sync transactions with your accounting tools
Additional third-party integrations and tools
Manage recurring subscriptions and billing cycles
Create and send professional invoices
Multi-vendor marketplace functionality
Accept payments manually via web interface
Automated recurring payment processing
Accept and process multiple currencies
Following its 2019 acquisition of First Data, Fiserv inherited a significant legal dispute between its subsidiary CardConnect and rival payments company Shift4. The lawsuit included allegations of breach of contract and lasted for several years.
Based on 10599 employee reviews
Positive employee feedback highlights good work-life balance, good pay and benefits, subject matter expertise among colleagues, and flexible work arrangements. Negative feedback describes constant layoffs driven by quarterly performance pressure, political internal culture, management turnover, surveillance software installed to monitor productivity, and a sense that the company has lost its culture following the First Data merger.
Customer support at Fiserv/Carat is widely criticized in merchant reviews — common complaints include fund holds lasting weeks with no analyst communication, account managers who ignore emails and calls, and merchants being told to email a general support address with case numbers rather than getting direct resolution. Enterprise clients with dedicated relationship managers report a substantially better experience than those accessing support through standard channels.
Estimate your monthly costs
This calculator provides an estimate based on available pricing information. Actual costs may vary. Contact Fiserv (Carat) for a personalized quote.
1984
600 N. Vel R. Phillips Ave Milwaukee, Wisconsin (53203)
40000