Current GAAP accounting prohibits a business from showing the true value of its crypto assets, say critics.
The digital dollar would be distributed through commercial banks and other trusted payment processors.
They could have major implications for the financial sector and the transmission of monetary policy, says Christine Lagarde.
Since announcing the project last month, the company has faced pushback from U.S. and international regulators and lawmakers.
The Bank for International Settlements says the "decentralized technology of cryptocurrencies is a poor substitute" for money backed by central banks.
