This section contains the principle legislation that set or amended postal rates.
- Act of 9 February 1861 – Continued in force certain laws of the United States
- Act of 21 February 1861 – Established the Confederate Post Office Department
- Act of 23 February 1861 – Prescribed postage rates
- Act of 1 March 1861 – Postage to be prepaid in money
- Act of 15 March 1861 – Authorized postmaster general to continue mail contracts
- Act of 13 May 1861 – Amended postage rates
- Act of 29 July 1861 – Authorized soldiers to send letters without prepayment of postage
- Act of 19 April 1862 (a) – Amended the letter postage rates
- Act of 19 April 1862 (b) – Amended the letter postage rates
- Act of 10 October 1862 – Authorized special agents to oversee speedy transmission of mail across the Mississippi River
- Act of 16 April 1863 – Authorized Trans-Mississippi Preferred Mail
- Act of 1 May 1863 – Authorized Trans-Mississippi Express Mail
- Act of 31 January 1865 – Authorized newspapers to be mailed to soldiers free of postage