Nigeria's state governments collected N5.15 trillion in Internally Generated Revenue (IGR) in 2025, a 40.93% rise from the N3.65 trillion recorded in 2024, according to Nairametrics. Lagos, Rivers, and Enugu led the rankings, cementing the pattern in which a handful of commercially active states generate the bulk of Nigeria's subnational fiscal muscle while the remaining 33 states depend heavily on federal transfers.
The 41% year-on-year IGR increase is one of the sharpest on record for subnational governments and reflects a combination of factors: the removal of the petrol subsidy in mid-2023 pushed states to diversify revenue bases, while naira depreciation inflated nominal tax receipts. Lagos alone — historically responsible for roughly a third of total national IGR — almost certainly accounts for a disproportionate share of the N1.5 trillion incremental gain between 2024 and 2025.
Yet even as states post stronger own-source revenues, the Central Bank of Nigeria is simultaneously draining liquidity at a pace that complicates state borrowing. In September 2026, the CBN ran four Open Market Operations (OMO) auctions in which investors submitted N20.58 trillion in total bids against an initial offer of just N3.9 trillion — a subscription ratio of more than five-to-one, Nairametrics reported. The CBN ultimately allotted N12.823 trillion, accepting roughly 62% of total bids and more than three times its original offer size.
The scale of that demand is striking. When investors queue up N20.58 trillion for an instrument offered at N3.9 trillion, they are signalling that risk-free naira yields remain deeply attractive relative to the private credit and equity alternatives available in the market. OMO bills are typically accessible only to foreign portfolio investors, banks, and large institutional players — meaning the September rush reflects sophisticated money, not retail flight to safety.
For Nigerian businesses, the consequences are direct and uncomfortable. Every naira parked in CBN OMO bills is a naira that does not flow into commercial credit. Banks with large OMO holdings face reduced incentive to lend to manufacturers, traders, or infrastructure developers at rates that borrowers can sustain. The effective policy rate signal from the CBN's aggressive OMO mopping — accepting N12.8 trillion when it only needed N3.9 trillion — is that the central bank is willing to keep the monetary environment tight well into the near term.
The IGR numbers, read alongside the OMO data, describe a two-speed fiscal reality. States that have built genuine tax infrastructure — Lagos with its land-use charges and consumption taxes, Rivers with oil-sector levies, Enugu with expanded payroll compliance — are generating real buffers. For these governments, stronger IGR means reduced dependence on Abuja's monthly FAAC allocations and, critically, an improved borrowing profile that can attract development finance on better terms.
States that have not invested in tax administration face a harder path. The N5.15 trillion aggregate figure, while impressive in headline terms, almost certainly masks extreme concentration: if the top three states account for, say, 45–50% of the total, the bottom twenty states may still be generating IGR that barely covers recurrent wage bills. Those governments will find the high-yield OMO environment doubly punishing — federal transfers are stretched, private credit is expensive, and the capital market is priced for the CBN's risk-free rate, not for sub-sovereign credit.
For investors and operators, the two data points together suggest a clear portfolio logic. Subnational revenue growth at 41% makes state-linked infrastructure bonds and public-private partnership mandates in Lagos, Rivers, and Enugu worth serious attention — these governments now have a demonstrated revenue trajectory that can service structured debt. At the same time, the OMO oversubscription warns that the opportunity cost of deploying capital into illiquid Nigerian assets remains elevated; any private investment thesis needs to clear a high hurdle rate to compete with government paper.
Why it matters: Nigeria's strongest states are building fiscal capacity fast enough to matter, but the CBN's decision to absorb N12.8 trillion in a single month of OMO auctions — against a N3.9 trillion offer — shows that monetary tightening is still the dominant market force, keeping credit expensive and reinforcing the concentration of economic activity in the few subnational governments already strong enough to self-fund.