President Muhammadu Buhari, Vice President Yemi Osinbajo, state governors and other political appointees about to leave office may cost the country about N64.72bn.
The figure also covers the pay for ministers, commissioners, National Assembly members, and special advisers.
It, however, does not include special assistants and state assembly members.
The allocations by the Revenue Mobilisation and Fiscal Allocation Commission for salaries and allowances for one month, as well as severance gratuity (300 per cent of basic salary), were analysed to arrive at the figures.
More specifically, aside from the basic for the last month in office, the figure includes allowances, such as hardship allowance (50 per cent of basic salary), Consistency allowance (250 per cent of basic salary), motor vehicle fueling allowance (75 per cent of basic salary), entertainment allowance (45 per cent of basic salary), among others.
As stipulated by RMAFAC, Buhari is expected to get N1.71m, which includes basic salary and a few allowances and N10.54m as severance gratuity.
Vice-President Osinbajo is expected to get N1.01m plus N9.09m severance pay.
The eight special advisers in the Presidency are expected to get N590,957, which includes basic salary and a few allowances, and N5.83m severance pay each.
In total, N51.37m will be spent on the special advisers under the Presidency.
There are 44 ministers under Buhari, consisting of 27 federal ministers and 17 ministers of state.
While each minister is entitled to N6.73m (which includes basic salary, some allowances and severance pay), each minister of state is entitled to N6.5m.
In total, they would get N292.21m, with ministers getting N181.71m and ministers of states receiving N110.5m.
Each special adviser under the minister is entitled to a final pay of N6.42m. With each minister having one special adviser, the total sum of N282.48m will be spent.