Optimize your member renewal letters to keep members coming back year after year. Read our how-to guide and download your free template.Below are three examples of effective new member welcome letters tailored to different types of organizations. We've compiled common types of donation requests, plus carefully crafted templates that your team can use to jumpstart your outreach. Includes tips, worksheets, fundraising ideas, and more! Sample Letters, Emails, and Social Media Posts- Pages 13-15. You need their membership commitment to accomplish even greater things in the coming year. List a few of those great things you are going to do. Boost your renewal rates with a foolproof membership renewal letter! Include the nonprofit's EIN so the the donor can to check the charity's tax-exempt status with the IRS.