biography of mohammed-nami

Meet Muhammad Mamman Nami, Who Increased FIRS Revenue By 150% in 4 Years

Last updated on January 30th, 2024 at 10:14 pm


Between December 9, 2019, to September 14, 2023, Mr Muhammad Mamman Nami was in charge of the Federal Inland Revenue Service (FIRS) as the Chairman of the tax collection agency.

He took over from Mr Babatunde Fowler, whose tenure was not renewed by the president.

His tax collection record at FIRS

Several achievements can be attributed to his leadership, but the one that specifically caught our attention is how he increased revenue collection of the agency from N4.95 Trillion in 2020 to N12.37 Trillion at the end of 2023, that’s approximately 150.10 percent.


Although, the tax collection record of the agency in the year his predecessor left was N5.26 Trillion (2019), in the following year, the tax collection decreased by more than N300 Billion.

But in 2021, the agency under his leadership raked in N6.40 Trillion as tax collection, increasing it by 29.29% than 2020.

By the end of 2022, the revenue collection had improved by 57.81% (from N6.40 Trillion to N10.10 Trillion).

And by 2023, he left behind a record of N12.37 Trillion, a record his successor Zacch Adedeji has vowed to break by targeting N19.4 Trillion for 2024

Who is Muhammaed Nami?

The former FIRS boss attended Bayero University Kano and Ahmadu Bello University, Zaria, where he obtained a Bachelor’s Degree in Sociology (1991) and a Master of Business (2004) respectively.

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He started his career with PKF Nigeria Professional Services in 1993 and rose to the position of a senior consultant in charge of tax management and advisory services.

He is the managing consultant of Manam Professional Services (Chartered Tax Practitioners and Business Advisers) based in Kaduna and Niger states, as well as Abuja.

Professional membership

He is a fellow of the Chartered Institute of Taxation of Nigeria, the Institute of Debt Recovery Practitioners of Nigeria and an Associate Member of Nigerian Institute of Management (Chartered) and the Association of National Accountants of Nigeria.


He is trained in tax, accounting and management, with highly rated qualifications and professional practice and licenses from relevant professional bodies.

He has close to 30 years of practical working experience in auditing, tax management and advisory, and management services to clients in the banking, manufacturing, services and public sectors as well as non-profit organisations.

Advisory skills

The ex-FIRS boss is an expert in rendering advisory support services to investors in respect of new business start-ups and the management of existing businesses.

He has also continuously rendered outsourced services to clients in the trade, service and manufacturing sectors of the nation’s economy.

He has equally served and is still serving, on many companies’ boards, including the Statutory Board Audit Committees.

Married and blessed with children, Nami is not a stranger to the presidency. In November 2017 he was appointed as a member, of the Presidential Committee on Audit of Recovered Stolen Assets by Mr President.

President Bola Tinubu replaced Nami with Adedeji on September 14, 2023.

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