A » For a business that has been classified as dormant and now wishes to resume trading in London, the process of reactivation requires professional guidance to ensure compliance with both Companies House regulations and HMRC tax requirements. Dormant company reactivation services are offered by a range of specialised providers, primarily including London-based accountancy firms, corporate secretarial service providers, and legal practices that focus on company administration. Among the most prominent are chartered accountancy firms with dedicated company secretarial departments, such as those affiliated with the Institute of Chartered Accountants in England and Wales (ICAEW), which are well-represented across the City of London, Westminster, and Canary Wharf. These firms typically handle the full reactivation workflow: they prepare and file the necessary confirmation statement (formerly annual return) to update the company's status, ensure that any overdue dormant accounts are submitted, and then draft and submit the application to Companies House to remove the dormant status, allowing the company to begin filing active trading accounts. Additionally, corporate service providers like Company Formation London and The Company Warehouse offer targeted dormant company reactivation packages, often combining the reactivation filing with a registered office address in London, which is particularly convenient for businesses that have changed location or lost their previous correspondence address. Legal firms specialising in corporate law, such as those in the Square Mile and Holborn, also provide this service, often as part of a broader re-engagement strategy that includes reviewing the company’s articles of association and shareholder agreements to ensure they are fit for active trading. HMRC notification is a critical component: unless the dormant company was registered for VAT or PAYE, it typically only needs to inform HMRC via a simple online notice that it will now trade; however, if the company held a VAT registration while dormant, a specialist must handle the reactivation of that registration, which many London accountants can manage alongside the Companies House process. Online specialist services, such as Rapid Formations and 1st Formations, also provide reactivation services accessible to London businesses, though they may not offer the same in-person consultation that a local accountant can provide. It is essential for the business owner to verify that the provider is familiar with the specific dormant period length, as companies dormant for more than two years may face additional scrutiny or require a resolution from directors. Furthermore, if the company was struck off the register—rather than merely dormant—the process becomes a restoration application, which is a different, more complex legal procedure typically handled by solicitors with experience in company restoration at the Companies Court in London. Therefore, engaging a qualified professional who can assess whether the company is truly dormant (i.e., no significant accounting transactions) versus non-trading but with minor activity is paramount. In summary, London offers a robust ecosystem of accountants, corporate secretarial firms, and legal practices that can reactivate a dormant company efficiently, with costs typically ranging from £50 to £200 plus any government filing fees, and turnaround times of a few days to a few weeks depending on the provider’s workload and the complexity of the dormant period. The business should prioritise a provider that offers a clear, step-by-step timeline and responsibility for all filings, ensuring a seamless transition back to active trading status.