Prices were rising even more quickly than in December, when inflation stood at 24.3 per cent, the highest level since January 2011 when the Arab Spring uprising was at its height.
Consumers have been hit by surging prices since November when the government floated the currency and slashed fuel subsidies as part of an economic reform package linked to the USD 12 billion IMF loan deal.
The Egyptian pound, which had been pegged at 8.83 to the dollar, has been trading at nearly 19.
IMF mission chief Chris Jarvis said last month that he expected inflation to ease significantly in the second half of the year.
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He said Egypt had made a "good start" on the reform package it had signed up to.
In addition to the pound's devaluation, the government also raised tariffs on hundreds of imported items to up to 60 per cent in December and introduced a value-added tax in September.
The IMF approved a first USD 2.75 billion tranche of emergency loans in November after Egypt's foreign currency reserves plunged.
Egypt is set to receive a second tranche of USD 1.25 billion.
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