Nevis CIT-101 Filing: Requirements, Deadlines and Penalties

Key Takeaways

• Every Nevis IBC, LLC and International Company must file the CIT-101 every year — taxable or not.
• It is a simplified information return, no financial statements are required.
• Due within 3.5 months of fiscal year-end — 15 April for calendar-year filers.
• Non-filing risks a penalty of up to EC$10,000 under Section 82(c), Income Tax Act Cap. 20.22 — and it falls on the entity, not the agent.

What is the CIT-101?

The CIT-101 is a simplified corporate income tax return filed with the St. Kitts and Nevis Inland Revenue Department (SKNIRD). It was introduced after the Federation reformed its tax laws to exit the EU list of non-cooperative jurisdictions and meet OECD standards on harmful tax practices. The first returns were due from 26 August 2020, and filing has been mandatory every year since.

The standard CIT-101 does not ask for financial accounts. It is a status declaration used to identify which entities are taxable in the Federation, and the information may be shared for Exchange of Information (EOI) purposes under the Federation’s tax agreements. Note that the CIT-101 is separate from the annual government renewal fee your registered agent pays to keep the company in good standing — paying one does not satisfy the other.

Who must file the CIT-101?

Filing is mandatory for all of the following, regardless of tax residency or whether any tax is due:

• Nevis IBCs registered under the Nevis Business Corporation Ordinance, 2017;
• Nevis LLCs registered under the Nevis Limited Liability Company Ordinance, 2017; and
• International Companies registered under the Companies Act, Cap. 21.03.

Responsibility rests with the entity itself. Most returns are filed through the company’s registered agent or service provider, but the entity may also file directly. Either way, the company — not the agent — bears any penalty.

What information the CIT-101 requires

The return is short. It collects identification details and answers to four questions. Mandatory fields are marked with an asterisk on the portal.

Identification and contact fields

• Company Registration Number — assigned on registration.
• Taxpayer Identification Number (TIN) — only if the entity is registered with SKNIRD.
• Corporation Name
• Company Classification — e.g. IBC or LLC.
• Tax Year — the preceding calendar year (e.g. 1 January 2025 to 31 December 2025).
• Head Office Address
• St. Kitts–Nevis Address — the local address, if applicable.
• Business Activity — from a drop-down list.
• Contact Information and Company Representative / Registered Agent Information.

The four questions

1. Tax residence / permanent establishment (PE). Is the entity tax resident or doing business through a PE in the Federation? “Yes” brings it into the taxable net; “No” requires declaring the jurisdiction of tax residence.
2. Location of accounting records. Where are the books kept — at the Nevis registered office, or at another address in or outside the Federation?
3. Multinational Enterprise (MNE) / Country-by-Country Reporting. Is the entity part of an MNE group with CbC obligations under BEPS Action 13? Only groups meeting the €750 million consolidated revenue threshold are in scope.
4. Declaration. A signed, legally binding declaration certifying the information is accurate.

A straightforward non-resident entity can usually complete the CIT-101 in minutes — but the declaration is binding, so the answers must be accurate.

CIT-101 vs CIT-100

• CIT-101 — the simplified information return that every Nevis IBC, LLC and International Company must file annually.
• CIT-100 — the full corporate income tax return, filed only by entities that are tax resident in the Federation or operate through a permanent establishment there.

The CIT-101’s first question is the gateway. Answer “Yes” and the entity must also file the CIT-100, with corporate income tax at 33% on worldwide income for residents. Answer “No” and it files only the CIT-101. Tax residence turns on where management and control sits, per the Income Tax (Amendment) Act 2021 and the SKNIRD’s Guidance on Tax Residence and Taxable Presence.

CIT-101 filing deadline

The CIT-101 is due 3.5 months after the end of the entity’s fiscal year.

• For calendar-year companies (1 January – 31 December), that is a 15 April deadline. The 2025 base year was due 15 April 2026; the 2026 base year is due 15 April 2027.
• A non-calendar fiscal year requires prior permission from the Comptroller of Inland Revenue.

In recent cycles the CIT-101 portal has suffered technical disruptions near the deadline, and SKNIRD has occasionally granted short extensions (the 2024 base year was extended into May 2025). SKNIRD is also migrating to a new platform (“SMARTS”). File early and confirm the current position on the SKNIRD Advisory page rather than relying on an extension.

How to file the CIT-101

The return is filed online through the SKNIRD e-services platform via the CIT-101 Return Portal, either by the entity itself or by its registered agent. Keep the submitted return, the confirmation, and your tax-residence position on file in case the entity is later asked to evidence its status or respond to an EOI request.

Penalties for non-compliance

Penalties are set by Section 82(c) of the Income Tax Act, Cap. 20.22. In summary, any person who — without reasonable excuse, and whether or not any tax is due — fails or neglects to furnish required particulars commits an offence and is liable on summary conviction to a penalty not exceeding EC$10,000 (roughly US$3,700).

Two points matter:

• The penalty applies even where no tax is owed — non-resident, non-taxable entities are not exempt from filing.
• The penalty attaches to the entity, not the registered agent filing on its behalf.

Sources and legal basis

1. Income Tax Act, Cap. 20.22
2. Income Tax (Amendment) Act, 2021 (Act No. 12 of 2021)
3. Nevis Business Corporation Ordinance, 2017, CAP 7.01 (N)
4. Nevis Limited Liability Company Ordinance, 2017 CAP. 7.04(N) 
5. Companies Act, Cap. 21.03 
6. Nevis IRD CIT-101 Guidelines, Revised September 2023

Produced by Astra Trust for general information only; this is not legal or tax advice. CIT-101 requirements, deadlines and portal arrangements are set by the St. Kitts and Nevis Inland Revenue Department and can change — confirm the current position via the official SKNIRD advisories or your registered agent before filing.