A resignation letter from an accounting firm to a client is a formal letter used by an accounting firm to inform a client that they are ending the professional relationship between them. This type of letter is typically sent when the accountant is leaving the firm or when the client decides to end their relationship with the accounting firm. This letter should include a professional and courteous tone, an explanation why the relationship is ending, and a statement of appreciation for the client's business. There are several types of resignation letters from an accounting firm to a client, including: 1. Notice of Resignation: This type of letter is sent by the accounting firm to notify the client that the accountant is leaving the firm. It should provide clear details about when the resignation is effective and any applicable next steps. 2. Client Termination Letter: This type of letter is sent by the accounting firm to a client when the client decides to end their relationship with the firm. It should state the reasons why the client is terminating the relationship and provide a statement of appreciation for the client's business. 3. Retirement Letter: This type of letter is sent by the accounting firm to a client when the accountant is retiring. It should provide an explanation for the retirement and a statement of gratitude for the client's business. 4. Transfer Letter: This type of letter is sent by the accounting firm to a client when the accountant is transferring to another firm. It should explain the reasons for the transfer and provide a statement of appreciation for the client's business.