NACC commissioner Preecha Lertkamolmas said Suphoth was given 15 days to defend himself to the anti-graft body.
Preecha said Suphoth signed his name to acknowledge the charge and his cooperation with the NACC. Suphoth told the NACC he might seek an extension of the deadline as he would need evidence from banks and other government agencies.
The NACC launched a probe into Suphoth after thieves who broke into his house told police they discovered he had more than Bt1 billion there.
Police have retrieved about Bt18 million from the thieves but Suphoth insists only Bt5 million was stolen.
Preecha said Suphoth was ordered to explain the source of the cash reportedly in his house and to declare all his bank accounts, plus land and vehicles.