For Americans eligible for British citizenship

The complete guide to your British citizenship application

Written by our SRA-regulated immigration solicitors, it walks you through the whole process step by step. It comes with a personalised eligibility assessment, so you know exactly where you stand under British nationality law and what to do next.

  • SRA-regulated UK firm
  • Fixed fees, no surprises
  • New York & Manchester offices
  • 4.8★ verified client reviews
The Muldoon Britton immigration team

Two ways to work with us

Same expert team behind every option. Fixed fees. No surprises.

Standard Pack

DIY Guide

£299GBP · one-time

For confident applicants who want a clear, expert-written roadmap.

  • Our complete step-by-step British Nationality guide
  • Full document checklist and process walkthrough
  • You complete everything yourself — no solicitor involvement

Full Service

White Glove

£2,500GBP · from

Hand it to us. We manage the entire application end-to-end.

  • We handle the entire application for you
  • Document collection, preparation, submission and all Home Office correspondence
  • You don't lift a finger

All prices in GBP. Your Standard guide is unlocked as soon as you complete the eligibility checker. Full Service pricing starts at £2,500 and is confirmed on consultation.

What's inside the guide

Practical, plain-English answers to the questions our solicitors get every week, written so you can act on them.

Eligibility, demystified.

Work out exactly which route to British citizenship applies to you, and what you need before you start.

The application, step by step.

A clear walkthrough of the British nationality application from the first form to the citizenship ceremony.

Every document you need.

A complete checklist of supporting documents, with examples of what passes and what gets rejected.

Mistakes to avoid.

The most common errors our solicitors see, and exactly how to keep them out of your application.

Realistic timelines.

What to expect at each stage of the Home Office process, so you can plan with confidence.

Why Muldoon Britton

An SRA-regulated UK immigration firm, trusted by Americans on both sides of the Atlantic.

4.8 average on Google · 200+ successful nationality applications
  • Solicitors regulated by the SRA (UK)
  • Fixed, upfront fees — no billable-hour surprises
  • Offices in New York and Manchester
  • 15+ years of UK immigration experience

What clients say

4.8 average on Google

"Have used Muldoon Britton for multiple visa needs and their service has been consistently outstanding. Their team makes complex immigration processes straightforward and stress-free."

A Hutchinson

Verified Client

"Muldoon Britton did a wonderful job of helping me navigate the complexities of UK immigration. Communication was excellent throughout the entire process."

AJ Beesinger

Verified Client

"From helping us gather materials for our application to the final approval, they were highly professional and always available to answer our questions."

Casey Morris

Verified Client

Ready to claim your British passport?

Not sure which option is right? Most applicants start with Standard — the full guide walks you through the entire process step by step.