Sending Over $10,000 10K USD Via a Bank in Taiwan

When transferring from Taiwan to the US I use “511 Allowance, the cost of living” and “remittance by overseas worker” (or something like that) because that’s what the bank employee told me to use long ago. It always seemed odd to me, because I live in Taiwan, so the money I’m sending to the US is obviously the money I’m not using for my cost of living, but whatever.