The biggest companies in Nigeria paid ₦3.412 trillion in income taxes between January and September 2026. That is 73.31% more than the same period last year, according to BusinessDay. The jump follows a series of tax administration reforms, including the 2025 Finance Act and tighter collection through the FIRS.
Do the arithmetic. A 73% increase in nine months is not inflation. It is a change in the tax net. Firms that previously negotiated, delayed or avoided are now paying. The reform did not raise the rate. It raised the probability of payment.
The historical echo is the 2019 VAT increase and the 2020 Finance Act, which promised to widen the net without raising the rate. Collection improved for two years, then plateaued. This cycle looks stronger because the reforms target compliance at the point of transaction, not at the point of assessment.
For the government, the money is welcome. ₦3.412 trillion is roughly the size of the entire 2022 federal health budget. For the firms, the cost is real. A manufacturer in Agbara now pays tax it previously deferred, and that cash is no longer available for working capital. Some will pass the cost to consumers. Some will absorb it. Either way, the margin shrinks.
The losers are not just the firms. A market trader selling imported goods will see wholesale prices rise as distributors recover tax costs. A family in Surulere will pay more for the same basket. The winners are the federal government and states that receive a share of VAT and company tax. The question is whether the money becomes visible as roads, clinics and schools, or disappears into recurrent spending.
Winners: The Federal Government, the FIRS, states receiving a larger distributable pool. Losers: Large firms facing higher effective tax, consumers facing pass-through costs, and any business that relied on the old discretion.
Bottom Line: A 73% tax rise is a collection victory. The next test is whether taxpayers see a return, or just a receipt.