From the perspective of the tax authorities, although the representative office itself cannot engage in for-profit activities, the essence of its establishment is to assist the overseas parent company to expand territory and expand business tentacles. It seems to be a cost center, but in fact, the income is directly attributable to the overseas parent company, so the representative office must contribute to the profits of the parent company. Therefore, the proportion of the representative office in the income of the parent company should be divided according to the principle of its economic substance, so as to confirm the actual income and cost of the representative office, so as to determine its taxable income. Article 6 of the Interim Measures for the Tax Administration of Resident Representative Offices of Foreign Enterprises (No. 18) puts forward the first treatment of income tax payment of representative offices, that is, the principle of reporting according to the facts. Article 6: The representative office shall set up an account book in accordance with relevant laws, administrative regulations and the provisions of the competent financial and tax departments under The State Council, keep accounts on the basis of legal and valid vouchers, conduct accounting, and accurately calculate its taxable income and taxable income in accordance with the principle of matching the functions actually performed with the risks assumed. The enterprise income tax and business tax shall be declared and paid to the competent tax authorities within 15 days after the end of the quarter, and the VAT shall be declared and paid to the competent tax authorities according to the tax payment deadline stipulated in the Provisional Regulations of the People's Republic of China on Value-added Tax and the Rules for its implementation.