The maturity of the bond determines when you will receive your original investment back. However, the issuer may have the option to redeem your investment early. This will be defined in the Official Statement.
If you are buying a callable bond you should review carefully any optional, special, or extraordinary redemption provisions that may apply. Bonds that may be redeemed early are often referred to as ‘callable bonds’. Learn more about callable bonds. Please see the Preliminary Official Statement and Official Statement of the issuance for full redemption conditions of your specific investment.