CBI due diligence fees explained: what you're actually paying for in 2026

You've done the math on minimum investments, government fees, and agent retainers. Then someone mentions due diligence fees — and suddenly there's another five-figure line item on the spreadsheet you didn't fully account for.

Due diligence fees are the most misunderstood cost category in citizenship by investment (CBI) programs. Most guides lump them into a single number. Fewer explain what actually happens during the process and what determines whether an application passes or gets flagged.

This guide breaks down exactly what CBI due diligence covers, what each Caribbean program charges in 2026, what the ECCIRA agreement signed in September 2025 will change once it is in force — and what applicants typically overlook until it costs them time and money.

Note: Due diligence rules and fee structures are reviewed periodically by Caribbean program units. Figures in this guide reflect 2026 rates. Always verify current fees directly with the program authority or your authorized agent before submitting.

Key takeaways

CBI due diligence fees operate on two layers: government-administered background checks (paid to the program unit) and agent-managed document preparation and coordination (included in or billed alongside agent fees).
2026 fee ranges: For a main applicant plus spouse, St. Kitts is the most expensive at $17,500, followed by Antigua at $13,500. Dominica ($11,500) and Grenada ($10,000) sit lower.
ECCIRA (signed September 2025) is not yet in force. Once it is, the agreement provides for common biometric standards and mandatory interviews for the main applicant and dependants aged 18+. Today each program sets its own rules; Grenada already interviews applicants aged 17+ (online) and Dominica every applicant aged 16+.
A regional register of applicants is what ECCIRA is designed to add once in force. If you've been declined elsewhere, disclose it proactively.
Pre-screening before submission is the most cost-effective use of agent fees. Catching problems before they reach the program unit saves far more than it costs.

What due diligence actually is in a CBI context

"Due diligence" in CBI programs refers to the background vetting process that every applicant undergoes before an application is approved. The program authority — Grenada's Citizenship by Investment Unit, St. Kitts' CIU, and so on — is legally responsible for verifying that applicants meet the character and integrity requirements of the program.

This is not a formality. Caribbean programs have faced significant international scrutiny over the past decade for approving applicants who later appeared in sanctions lists, criminal proceedings, or tax fraud investigations. ECCIRA (the Eastern Caribbean Citizenship by Investment Regulatory Authority), whose agreement was signed in September 2025 but is not yet in force, represents the region's most serious structural response to that pressure.

Due diligence operates at three tiers:

Tier 1: Basic background check

Every applicant undergoes a foundational criminal and financial check. This typically includes:

National criminal record verification from all countries of citizenship and long-term residence
Interpol database cross-reference
Basic financial history review
Sanctions list screening (OFAC, EU, UN)

This tier is included in every CBI government fee structure. It forms the floor, not the ceiling, of what program units actually review.

Tier 2: Enhanced due diligence

For applicants flagged in Tier 1 — or for those from jurisdictions where official records are less reliable — programs escalate to enhanced screening:

Adverse media search (news archives, court records, regulatory filings across multiple languages)
PEP (politically exposed person) screening and relationship mapping
Beneficial ownership verification for business interests
Second-level source of funds review

Enhanced due diligence is not always disclosed as a separate fee. Some programs fold it into the base government DD fee; others charge a supplemental amount when escalation occurs. If you are a PEP, have complex business ownership, or come from a higher-scrutiny jurisdiction, budget for it.

Tier 3: Interview and biometrics

This is where the most significant structural change to CBI due diligence in a decade is coming.

The ECCIRA agreement was signed in September 2025 but is not yet in force. Once it is, it provides for:

In-person or virtual interviews for the main applicant and dependants aged 18+
Common biometric data standards across the participating programs
A regional register of applicants

Today, each program sets its own rules. Grenada already requires an interview for applicants aged 17+, held online, and Dominica interviews every applicant aged 16+, usually by video. Once in force, the agreement applies only to applications made after that date.

2026 due diligence fee ranges by program

The figures below reflect government-published due diligence fees. Agent fees for document management, interview preparation, and coordination are separate and covered in the next section.

Program	Main applicant	Spouse	Per additional dependent (adult)	Per dependent child
Grenada	$5,000	$5,000	$5,000 (17 and over)	None under 17
St. Kitts & Nevis	$10,000	$7,500	$7,500 (16 and over)	None under 16
Antigua & Barbuda	$8,500	$5,000	$4,000 (18 and over)	$2,000 (12 to 17); none under 12
Dominica	$7,500	$4,000	$4,000 (16 and over)	None under 16

Combined main applicant + spouse approximate totals:

Grenada: $10,000
St. Kitts & Nevis: $17,500
Antigua & Barbuda: $13,500
Dominica: $11,500

A few notes on these figures:

Grenada's fees sit at the low end, at $5,000 per person aged 17 and over, and the program's CARICOM integration and E-2 treaty eligibility make it attractive for specific applicant profiles — the DD cost is part of a larger value calculation.

St. Kitts has historically been one of the most rigorous programs. The per-dependent adult fee is non-trivial for applicants adding multiple family members.

Dominica and Antigua tie for the lowest fee per adult dependant, at $4,000. Dominica charges it from age 16 and Antigua from 18, with Antigua charging $2,000 for dependants aged 12 to 17, so for larger families with older children the two sit close at the DD level.

What ECCIRA will change once in force

The ECCIRA agreement was signed in September 2025 but is not yet in force, and once it is, it applies only to applications made after that date. Here is what is worth understanding now.

Regional register and shared standards

Once in force, the agreement provides for a register of applicants and common biometric data standards across the participating programs. It is designed to make it harder to shop programs after a refusal. Until then, each program runs its own checks.

The practical implication: if you were declined by one Caribbean program, disclose it in any new application. Non-disclosure of prior rejections is treated as a material integrity failure — grounds for immediate refusal, not just re-review.

Mandatory interview requirement

Previously, the CBI application process was largely paper-based. Program units reviewed documents and commissioned background checks, but most applicants never spoke to a program officer.

That is changing. Grenada already requires an online interview for applicants aged 17+, Dominica already interviews every applicant aged 16+, usually by video, and once the ECCIRA agreement is in force it provides for mandatory interviews, in person or virtual, for the main applicant and dependants aged 18+. The interview covers:

Source of funds and wealth narrative
Business activities and professional background
Purpose of citizenship acquisition
Family member relationships (for dependents included in the application)

Documentation requirements

Each program sets its own lookback period for financial documentation, and source of funds review goes well beyond current balances. Expect to provide:

Bank statements: for the period your program specifies
Source of funds evidence: full chain of wealth origin, not just current account balances
Utility bills and proof of address: going back at least three years for all addresses
Business ownership documentation: full beneficial ownership maps for any company in which the applicant holds a meaningful interest

For applicants with complex business structures, multiple jurisdictions of residence, or significant investment portfolios, the documentation burden is substantial.

What agents charge for due diligence management

Government DD fees are fixed by the program unit. What varies is the agent layer — the services an authorized agent provides to prepare, compile, and coordinate an application through the due diligence process.

These are the typical categories and approximate fee ranges:

Pre-screening

$2,000–$5,000

This is the stage that matters most and is most frequently skipped by applicants trying to minimize upfront costs.

Pre-screening involves the agent reviewing an applicant's background before any submission to the program unit. The objective is to identify potential issues — prior criminal matters, PEP connections, inconsistent source of funds narratives, prior rejections — before they surface during formal review.

A good pre-screening catches problems while they are still solvable. Document gaps can be addressed. A prior criminal matter — even a minor one — can be disclosed correctly and contextualized rather than discovered and treated as concealment.

Skipping pre-screening to save a few thousand dollars is a category error. The cost of a failed application — lost government fees, wasted time, and a rejection on your record — far exceeds the pre-screening cost.

Document preparation

$3,000–$8,000

CBI applications involve substantial document compilation: notarized copies, apostilles, certified translations, bank reference letters, professional letters of recommendation, police clearance certificates from all relevant jurisdictions, and the financial documentation your program requires.

Agent fees at this stage cover document review for completeness and compliance, coordination with notaries and apostille authorities, managing translations, and ensuring format compliance with specific program requirements. Each program has its own specification standards. A document accepted by Grenada's CIU may require reformatting for Dominica's.

For applicants with a Turkish background, this step includes coordinating apostille certification in Türkiye, where the apostille comes from the governorship or district governorship (valilik or kaymakamlık) for notarised and administrative documents, and from the justice commission (adalet komisyonu) for court documents, not from the Ministry of Foreign Affairs.

Interview preparation

$1,500–$3,000

Given that interviews are new to the Caribbean CBI process, thorough preparation has become a meaningful service. Agents — particularly those with direct experience of program interviews — can provide:

Mock interview sessions covering likely questions
Wealth narrative structuring (how to explain source of funds clearly and consistently)
Document review specific to interview presentation
Coordination with the program unit for interview scheduling

Ongoing coordination

This is typically included in the overall agent service fee rather than billed separately. It covers communication with the program unit during the review period, responding to requests for additional information, and managing any escalations.

What triggers a red flag — and why it matters more now

Once ECCIRA is in force, its regional register of applicants is designed to stop a rejection staying with one program. Understanding what triggers scrutiny is worth more than any other section of this guide.

Criminal history

Any conviction — not exclusively felonies, and including matters that may have been expunged in the home country — is subject to disclosure. Programs assess criminal matters against a materiality standard, but non-disclosure is treated more seriously than the underlying matter in many cases. If you have any conviction in your history, disclose it and let your agent manage the narrative.

PEP status

A politically exposed person designation applies not just to current officeholders but to former officials, their immediate family members, and close business associates. The definition is broad. If you held a government position, worked closely with elected officials, or have family members who did, your application will receive enhanced scrutiny regardless of the circumstances.

PEP status does not automatically disqualify an applicant. Undisclosed PEP status typically does.

Inconsistent source of funds documentation

The most common technical failure in CBI applications is a gap between declared wealth and documented wealth. If an applicant states that funds come from a business sale but cannot produce the transaction records, or declares rental income that does not appear in tax filings, the application is flagged.

Wealth generated before your program's lookback period and not adequately traced creates documentation gaps that agents need to address proactively.

Connections to sanctioned jurisdictions or individuals

Business relationships with entities in sanctioned jurisdictions — even indirect ones through corporate structures — will surface in an enhanced background check. This is particularly relevant for applicants with trade or investment exposure to Russia, Belarus, Iran, North Korea, or Myanmar.

Prior rejections

As noted, a regional register of applicants is what ECCIRA is designed to add once in force. Any rejection — even one from several years ago — should be disclosed upfront to your agent. How a prior rejection is handled (disclosed correctly, with context) is materially different from how it is treated when discovered mid-process.

The typical due diligence timeline

A realistic timeline from submission through DD clearance in 2026:

Stage	Duration
Document compilation and pre-screening	4–8 weeks
Application submission to program unit	Day 0
Initial DD review (Tier 1 check)	2–4 weeks
Interview scheduling (where the program requires one)	Varies by program
Interview completion	1–2 days
Enhanced DD (if triggered)	Additional 4–8 weeks
DD clearance and approval	2–4 weeks after all checks complete
Total realistic range	Roughly 3–6 months of official processing; longer when enhanced due diligence is triggered

What's typically included vs. what costs extra

Item	Typically included	Usually extra
Government DD fee (Tier 1)	Yes — part of program fee structure	—
Enhanced DD escalation	Sometimes (some programs fold in; others charge extra)	Sometimes
Agent pre-screening	Varies — some agents include, some charge separately	Common to charge separately
Document notarization and apostille	Usually the applicant's cost	—
Certified translations	Usually the applicant's cost	—
Interview preparation coaching	Sometimes included in premium agent packages	Common to charge separately
Appeal if initially flagged	Not included — typically billed hourly	Yes

Who this is NOT for

Due diligence fees are not the primary issue if you are in one of the following situations.

If you have a serious undisclosed criminal history, the due diligence process will surface it. No agent can alter what the background check finds. The question is whether the matter is disclosed correctly before it surfaces — which changes how it is handled — not whether the DD fees are structured optimally.

If you have been rejected from a Caribbean CBI program without disclosing it, submitting to another program in 2026 without addressing this upfront is likely to result in another rejection.

If you are a high-profile PEP and have not engaged an advisor who specifically handles PEP applications, a standard authorized agent may not be the right resource. Complex PEP applications require advisors with direct regulatory relationships and experience managing enhanced scrutiny processes.

If you are purely focused on minimizing upfront costs, understand that cutting corners on pre-screening and document preparation is where rejections and delays originate. The due diligence phase is not the place to optimize for the lowest possible fee.

Two scenarios: getting this wrong — and right

Incomplete source of funds documentation

Say you have a complex business structure — a holding company in Cyprus, an operating subsidiary, and multiple historical transactions — and submit your Grenada application with three years of bank statements and a summary of business value. The DD review flags an inconsistency: a significant capital event appears in your current account balance but isn't traceable in the provided documentation.

The application is suspended, not rejected. Your agent requests an additional eight weeks to compile the full transaction chain going back five years. The application eventually clears, but the delay costs you the scheduled interview slot and pushes your approval date back by three months.

Had your agent conducted proper pre-screening, the documentation gap would have been identified before submission. The cost of pre-screening — roughly $3,000 — would have saved $8,000 in extended coordination fees and months of timeline.

Disclosing everything up front

Now say you're a retired civil servant who held a local government role. Your agent flags your PEP status at pre-screening. Rather than treating it as disqualifying, the agent structures your wealth narrative clearly, obtains formal documentation confirming the nature and conclusion of your public role, and submits the application with a cover letter contextualizing your status.

Your application clears enhanced DD in six weeks. The enhanced scrutiny is expected — but disclosure and preparation mean it is handled as a process, not a surprise.

Preparing for your CBI due diligence: a practical document checklist

Documents typically required for due diligence across the Caribbean programs:

Valid passport (all passports held, not just the one in active use)
National identity document(s)
Birth certificate
Marriage certificate (if applicable), divorce decree if relevant
Police clearance certificates from all countries of citizenship and residence for the past ten years
Proof of address: utility bills or bank statements (three years, multiple addresses as applicable)
Bank statements: for the period your program specifies
Source of funds documentation: transaction records, property sale agreements, investment statements, business valuation reports
Employer letters or business ownership certificates
Professional references (two to three, typically from lawyers, accountants, or senior business contacts)
Certified translations of all non-English documents
Apostilles where required by program specifications

For applicants with business interests: full corporate structure chart, beneficial ownership declarations, audited financial statements for the past three years, and any relevant regulatory filings.

Frequently asked questions

Are due diligence fees refundable if my application is rejected?

No. Due diligence fees pay for the background checks themselves, so they are kept whatever the outcome. Antigua's program states that the due diligence fee and the 10% of the government fee paid on submission are non-refundable, and St. Lucia describes its processing, due diligence and administrative fees the same way. The investment itself is paid only after approval in principle, so a refusal at the due diligence stage does not cost you the contribution.

Can I pay due diligence fees separately from the investment minimum?

Yes, that is how it works. Due diligence fees are paid with the application, on top of the investment minimum, while the contribution or property purchase is paid only after you receive approval in principle. In Antigua, for example, you pay the full due diligence fee and 10% of the government fee on submission, then the balance and the contribution within 30 days of the approval letter.

Will ECCIRA interviews require travel once the agreement is in force?

Not necessarily. The agreement provides for interviews in person or virtually, for the main applicant and dependants aged 18 and over, and only for applications made after it takes effect. The detailed rules on format and location have not been published yet. Today each program sets its own: Grenada interviews applicants aged 17 and over online, Dominica interviews applicants aged 16 and over, usually by video, and St. Kitts allows virtual interviews.

What happens if I fail the biometric enrollment?

Biometric enrollment is not a test you pass or fail. It records your fingerprints, facial image and signature to confirm you are who your documents say you are; in St. Kitts it takes 15 to 30 minutes at a designated location and is booked at the approval-in-principle stage. What matters is what it shows: data that does not match your documents, or an identity you did not disclose, becomes a due diligence issue.

Can I apply to two Caribbean programs simultaneously?

You can, but it rarely makes sense. Each program runs its own due diligence and charges its own non-refundable fees, so you pay twice, and you must disclose the other application. A refusal from one can sink the other: St. Kitts and Dominica both list having been denied citizenship by any country as a ground to refuse, and the ECCIRA register of applicants is designed to share that history once the agreement is in force.

My business has connections to a country that's on certain watchlists. Does that automatically disqualify me?

No, not automatically, but expect enhanced due diligence. Programs will look closely at the ownership, counterparties and source of funds behind those connections, so document them openly. Some limits are absolute: St. Kitts does not accept nationals of Afghanistan, Belarus, Iran, Iraq, North Korea or Russia, Dominica bans or limits applicants from several countries, and the EU has asked the programs to exclude anyone under EU sanctions.

What to do next

If you are in the early stages of evaluating a Caribbean CBI program, the due diligence fee structure should factor into your total cost calculation from the start — not surface as a surprise after you've committed to an investment option.

If you have a straightforward background — no criminal history, no PEP connections, clean and traceable source of funds — your DD experience will be primarily a documentation management exercise. Budget $10,000–$17,500 in government due diligence fees for a main applicant and spouse, allocate agent fees for document preparation and interview coordination, and expect roughly a three to six month timeline post-submission.

If your background is more complex — prior criminal matter, PEP exposure, business relationships in higher-scrutiny jurisdictions, or a prior CBI rejection — the pre-screening stage is non-negotiable. The agent you choose should have specific experience with your profile, not just general CBI processing.

If you're evaluating which program fits your situation before engaging an agent, our guides on Grenada citizenship by investment and Antigua & Barbuda CBI cover the full cost picture, investment options, and program-specific requirements in detail, and our Caribbean CBI comparison sets Dominica and St. Kitts & Nevis alongside them.

Once you know the direction, we introduce you to a licensed authorised agent who has your details before the first call. Contact us here.

Conclusion

CBI due diligence fees are not bureaucratic overhead. They pay for the vetting process that determines whether a citizenship application is approved, escalated for further review, or rejected.

That process is set to become more structured still. Once in force, the ECCIRA agreement signed in September 2025 provides for mandatory interviews, common biometric data standards and a regional register of applicants. Until then, each program sets its own rules.

The applicants who navigate this well share a common approach: they engage an agent early, conduct thorough pre-screening before submission, disclose complicated matters upfront, and treat the documentation preparation as the substantive work it is.

The applicants who struggle are typically those who treat due diligence fees as a formality and documentation preparation as a last-minute exercise.

Due diligence costs are substantial. The leverage that preparation provides grows with them.

Disclaimer

The information in this guide is for research and educational purposes. It does not constitute legal or tax advice. CBI program rules, fee structures, and due diligence requirements change frequently — always verify current requirements with a licensed advisor and the relevant program authority before taking action. Fee figures in this guide are estimates based on publicly available program information and agent-reported ranges. Actual fees may vary.