It's annoying. It could be ambiguous. It's inevitable too.
So as far as obligations go, you have to pay tax.
Just follow me closely.

Taxes in Nigeria are of 2 categories:
Federal taxes such as Companies Income Tax, Value Added Tax, Education Tax, etc.
And
State taxes which includes Personal Income Tax, Business Premises Tax, Development levy, etc.

But, yours truly, CEROBOOKS, is all about the Small and Medium businesses so I'll be talking about the taxes most relevant to startups and small businesses.
Shall we?

Companies Income Tax (CIT): This is a 30% annual tax on profits of resident and non-resident companies incorporated in Nigeria.
However, small businesses in the manufacturing sector, as well as those that are export-oriented, with a turnover of less than ₦1,000,000, pay 20% instead. To file, audited financial statements are required.
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Value Added Tax (VAT): This is a 5% tax imposed on the supply of goods and services. Companies do not pay VAT but are mandated to collect it from customers and remit all collections to the Federal Inland Revenue Service (FIRS) before the 21st day of the succeeding month.
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Personal Income Tax (PIT): This is a tax on all working individuals in Nigeria, be it, a farmer, tailor, civil servant, lawyer and even members of the armed forces. The rate varies and is dependent on the taxable income.
The taxable income is what remains from the annual gross income (total salaries and allowances earned each year) after you deduct:
✔️Contribution to the Nigerian Pension Fund (8% of income);
✔️Contribution to the National Health Insurance Scheme (5% of income);
✔️Contribution to the National Housing Fund (2.5% of income);
✔️Consolidated relief allowance (1% of gross income or ₦200,000+1% of earned income);
✔️Gratuities; life assurance payments; rent and business expenses; bad debt recovered; and...https://allsinglesandmarried..com/2019/11/here-ia-what-nobody-has-told-you-about.html?m=1