Very difficult to know for sure. You'd need to consult with a Philippines
yacht attorney....if there's such a person. You might get hit with sales taxes
or duties. Local folklore may be a good guide. Delivering on the high seas might be a better option. Check out, sail out, transfer, sail back, check in. Might take some explaining and there's the problem of not having the new certificate....
Maybe the local Lloyd's office would know?