Social Security Disability back pay will be paid in a single lump sum and will be reduced by the amount of SSI already paid for months when eligibility for the two programs overlap. The second SSI installment is due this month, but sometimes the installments are delayed.
The medium flat-rate boxes for Priority service are 13 5/8 inches by 11 7/8 inches by 3 3/8 inches and 11 inches by 8 1/2 inches by 5 1/2 inches. Shipping charges are $12.65. There is one small-size box offered for Priority service. It measures 8 5/8 inches by 5 3/8 inches by 1 5/8 inches and costs $5.95 to ship.
U.S. Postal Service Launches Express Mail Flat Rate Box. Overnight Domestic Shipping Up to 70 Pounds for $39.95. WASHINGTON â Expanding on the success of its line of Priority Mail Flat Rate Boxes, the U.S. Postal Service has introduced the first Express Mail Flat Rate Box. Ideal for consumers and small businesses selling merchandise online, the Postal Serviceâs Express Mail Flat Rate Box takes the guess work out of shipping, providing overnight delivery â up to 70 pounds â almost anywhere in the country for $39.95.