Insolvency documents show Max Clifford Associates owes £315,000 to HMRC in corporation tax, VAT, PAYE and National Insurance.
It comes three months after Clifford was found guilty of eight counts of indecent assault against four women between 1977 and 1984 and was jailed for eight years.
The next most significant creditor is Channel 4, with the broadcaster listed as being owed £62,000.
The Newspaper Licensing Agency is owed nearly £3,000, and the lingerie company Boux Avenue, owned by Dragon’s Den businessman Theo Paphitis, is also owed £3,000.
David Pugh, managing director of the NLA, told PR Week: "It’s a matter of public record that the NLA is a creditor but I can’t speculate on the likelihood or otherwise of that debt being paid."
The documents state that Max Clifford Associates Limited passed a resolution on 1 August "that it has been proved to the satisfaction of this meeting that the Company cannot, by reason of its liabilities, continue its business, and that it is advisable to wind-up the same, and accordingly that the company be wound up voluntarily".
The company has assets, mainly in cash, totalling just £13,000, to offset against the debt.
Other creditors include Higgisons chartered accountants, owed £12,000, Vodafone, owed £1,000, and the model and presenter Lilah Parsons, owed £480.
The company also owes Elmbridge Council £8,000 in local taxes.
Clifford and his daughter Louise, who signed the insolvency documents, are the company’s only shareholders and are listed as being owed £10,000 by the company.