"On the difference of 45 cents, the state earns an additional eight cents per liter based on the value added tax (VAT), which is calculated on excise duties."
Mugoša urged the government to restore the 30 percent reduction or utilize the statutory maximum 50 percent excise tax discount to relieve consumer pressure.
He argued that higher energy fees drive up broader market costs for essential services and retail goods.
"Inflation is good for the budget, but bad for citizens - the foundation of the economic logic of the Government and the majority," said Boris Mugoša.
"The Government continues to profit at the expense of citizens and a part of the economy, which unfortunately are the only ones bearing the burden of the energy crisis."
Mugoša added that state tax collection totals roughly 75 cents per liter of fuel through combined sales and excise levies.
He criticized the government's communication, saying it announced a convoluted continuation of excise duty reduction on Eurodiesel during the tourist season instead of transparently stating the cuts.
Latvia currently maintains its Law on Limiting Fuel Price Increases.
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The law reduced the diesel excise duty from 467 euros to 396 euros per 1,000 liters through the end of the year.