New British Passport Rules for Dual Citizens Explained

What British–Nigerian Dual Citizens Must Know from 25 February 2026

If you are Nigerian–British with dual citizenship, new UK border rules coming into force from 25 February 2026 will directly affect how you travel into the UK.

Under new Home Office guidelines linked to the Electronic Travel Authorisation (ETA) system, British dual citizens must now enter the UK using a valid British passport. Entering the UK on your Nigerian passport alone will no longer be accepted.

This is an important update for Nigerians in the UK who frequently travel between Nigeria and other countries.

What Is Changing?

From 25 February 2026:

• British dual citizens cannot enter the UK using a foreign passport, including a Nigerian passport
• You must present a valid British passport, or
• Use a Certificate of Entitlement if you do not have a British passport

Anyone attempting to enter the UK without proper proof of British status may:

• Be denied boarding by airlines
• Lose access to eGates
• Face delays or refusal at the UK border

Who Does This Affect?

These new rules affect:

• Nigerian–British dual citizens
• British nationals holding another passport
• British citizens living abroad who usually travel on their non-UK passport

If you are British by birth, descent, or naturalisation and also hold a Nigerian passport, this applies to you.

Why the UK Is Making This Change

The rules are part of the UK government’s Electronic Travel Authorisation (ETA) rollout, aimed at:

• Strengthening border security
• Digitising immigration checks
• Reducing fraud and identity confusion at UK borders

While British citizens are exempt from needing an ETA, the government now requires clear evidence of British nationality at entry.

What Were the Old Rules?

Previously:

• Dual citizens could enter the UK on their Nigerian passport
• Border officers often accepted expired British passports, naturalisation certificates, or verbal confirmation

That flexibility is ending.

What Can You Use to Enter the UK Now?

From 25 February 2026, you must use one of the following:

✅ A valid British passport (recommended)

• Adult passport: £94.50 (online)
• Valid for 10 years

✅ A Certificate of Entitlement

• Proves your right of abode in the UK
• Costs £589 when applied for outside the UK
• Must be renewed each time you change passports

⚠️ This option is more expensive and less convenient than holding a British passport.

What If You Don’t Have the Right Document?

You may:

• Be stopped at check-in abroad
• Be refused boarding by airlines
• Face extra scrutiny or delays at UK border control

Airlines can be fined for carrying passengers without correct entry documents, so many will refuse boarding outright.

Important Advice for Nigerians in the UK

If you hold British citizenship, always travel with your British passport.
Do not rely on your Nigerian passport alone when returning to the UK.

Naija UK Connect recommends:

• Renewing your British passport early
• Avoiding last-minute travel with expired documents
• Not assuming border discretion will apply

Key Takeaway

🇬🇧 British citizenship rights remain unchanged
📄 Proof requirements are stricter
✈️ Travel preparation is now more important than ever

For Nigerian–British dual citizens, having a valid British passport is no longer optional—it is essential.

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⚠️ Disclaimer:
Naija UK Connect is not affiliated with the UK Home Office. Always verify information through official government channels.