Por Bor Tor 5 (Ha) (P.B.T. 5), is an evidence showing that the occupier of a plot of land has been issued a tax number and has paid tax for using and the benefit of the land. This evidence gives no official rights at all, but was formerly used to establish that the holder was occupying a plot of land and could apply for a Sor Kor 1 and later for a land title deed.
Interesting! How much a rai did you pay? What's the location?
Have you considered whether a bank will lend money against it?