National Change of Address & CASS

75% of undeliverable mail could be fixed by running NCOA prior to the mailing.

Over 40 million Americans change addresses annually, significantly reducing the quality of your mailing list. Now you can ensure that your data is accurate and up-to-date with our National Change of Address (NCOA) service. NCOA can substantially reduce undeliverable and duplicate mail pieces by identifying and correcting addressing errors before they enter the mail stream.


  • Reduce undeliverable mail.
  • Improve delivery time.
  • Increase speed of response to mailing.
  • Reduce duplicate mail pieces and re-mailings.
  • Receive discounted postage rates.
  • Reduce employee data entry.
  • Meet the USPS NCOA update standards.
  • Save money.


  • Data formatting to prepare records for processing.
  • Addresses are updated, and the ZIP+4 Code is standardized by special request.
  • CASS Automation Discount Qualification.
  • Report breakdown of deliverable/nondeliverable address information.
  • Receive discounted postage rates.
  • Reduce employee data entry.
  • Data importing of updated records into your existing data files.

Service Includes

  • Your data is formatted for processing.
  • ZIP+4 codes are added and/or certified.
  • Records are compared against the NCOA database.
  • Reports indicating all data updates as well as records that still contain inaccurate information.
  • If you have Canadian donors in your database, we offer this same service for them. Please visit
Women On Computer

Learn more about DonorPerfect and NCOA