I bonds in particular are closer to a CD and are not transferable. If you have access to credit, you could borrow and pay it back once your I bond matures is ca

I bonds in particular are closer to a CD and are not transferable. If you have access to credit, you could borrow and pay it back once your I bond matures is cashable. Other Treasury notes can be sold, though if rates go up you may get back less than your principal, particularly on the longer duration notes.