How to Start Your Direct Mail Postcard Campaign with U.S. Press Select Your Postcard Details Start by choosing your postcard size and quantity with our instant calculator above. Next, answer the questions above about leftover postcards, duplicate removal, and NCOA forwarding. Get an Instant Price Once you have configured your postcard product, our calculator will display an instant price on our printing and mail services. Note: Postage is additional from the above pricing and will be invoiced separately after list processing. Upload Your Artwork and Complete Checkout Upload your artwork then breeze through checkout. Since we’re mailing your pieces for you, select “Mailing Services” under shipping options to avoid a shipping fee. Send Us Your Mail List After checkout, you'll receive a link to upload your mail list. We will then process your mail list to determine the final quantity and postage cost. Pay for Postage Once your list has been processed, we will send you an invoice for the postage total. Postage must be paid three days prior to your mail drop date. We'll Handle the Rest We’ll print, address, prep, bundle, and deliver your pieces to USPS for you. So sit back, relax, and watch your sales grow! Estimate Postage Postage is an additional cost to your printing subtotal and is dependent on the finished size and weight of your piece, the mail class you select, as well as the specific addresses on your mail list. The below rates are average, standardized rates set by USPS and are subject to change. Your exact postage cost is determined at list processing after you place your online order and will be invoiced separately. Postage must be paid three days prior to your mail drop date. Average Postage Costs: First Class Postcard (6" x 9" and under / Minimum 500 pieces): $.462 First Class Presorted Letter (Up to 3.5oz / Minimum 500 pieces): $.672 Standard Presorted Letter (Up to 4.0oz / Minimum 200 pieces): $.433 First Class Flat (Up to 1oz / Minimum 500 pieces): $1.63 Standard Flat (Up to 3.5oz / Minimum 200 pieces): $1.185