Carta was built to manage cap tables, mostly for US companies.
Slice was built from day one for those who operate across 60+ countries,
and manage equity beyond just cap table - with automated compliance, tax, and reporting.
Slice monitors tax and legal requirements across 60+ countries in real time. When an employee relocates mid-vest, Slice recalculates their compliance obligations automatically - no manual intervention, no waiting for a lawyer.
Slice is the first equity platform where AI is created as part of the infrastructure, not added as a feature. It flags regulatory changes, surfaces tax exposure, and answers equity questions instantly — before problems become costly.
Onboarding with Slice is specialist-led and fully managed. Your team collects documents; SliceAI with the support of our team of ex-lawyers and equity specialists does the rest. In just two weeks, your whole equity planning can be upgraded quickly
Migrating to Slice is not only fast, it’s also easy — and here’s why.
Your Slice onboarding specialist – an ex-lawyer who has done this hundreds of times – leads the entire process
We conduct a full data audit and due diligence on your existing cap table, grants, and documents
Data integrity and document completeness are verified before anything goes live
Your team provides documents; we handle configuration, compliance setup, and validation
Most companies are fully live in under two weeks
Onboarding is completely free
Yes. Slice supports a wide range of equity plans, awards, and financial instruments:
For UK companies specifically, Slice handles HMRC reporting requirements, Companies House filings, and the full compliance lifecycle for tax-advantaged schemes.
Your data, cap table, grant history, and compliance records transfer intact. Slice’s onboarding team conducts a full audit of your existing records, verifies document completeness, and validates data accuracy before you go live. The process is managed by Slice specialists — your team provides the documents, and we handle the rest.
Most companies complete the full migration in under two weeks. Slice’s onboarding process is specialist-led by former lawyers and equity professionals, with continuity throughout so there is no gap in compliance monitoring or equity administration.
Yes. Slice supports EMI, CSOP, and ESOP schemes, along with options, RSUs, RSAs, growth shares, phantom shares, warrants, SAFEs, and convertible notes. The platform also supports the reporting and compliance requirements associated with UK tax-advantaged plans.
Slice was designed for international equity from day one. Its compliance, tax, reporting, and employee-mobility logic is built directly into the platform across 60+ countries, with real-time monitoring and preemptive alerts. It is not a US product retrofitted for European operations.
We handle the migration. You stay compliant throughout.
Book a Migration Call