Your donation is fully tax deductible. Our tax ID is 06-0646718.To make an online donation to The Arc Middlesex County or make a contribution to The Arc Middlesex County in honor or memory of someone click here. Donate. Make a Donation. Fill out my LGL Form! Mail. A downloadable donation form is available if you would like to mail in your payment. Click below to download the form. Many standard forms are available below. All forms are categorized into their respective departments. Charitable contributions must be itemized on Schedule A of Form 1040 to qualify.