Every naira added — or paid down — under each president since 1999, ranked and broken down year by year.
| President | Term | External debt · US$ (FX-proof) | Domestic debt · ₦ (FX-proof) | Total debt · ₦ (headline) | ||||
|---|---|---|---|---|---|---|---|---|
| Δ $bn | % | Δ ₦tn | % | Δ ₦tn | % | per yr* | ||
| Obasanjo PDP |
1999–2007 8 yrs |
-24.5 | -88% | +1.0 | +125% | -1.1 | -33% | -4.9% |
| Yar'Adua PDP |
2007–2010 3 yrs |
+0.4 | +11% | +1.4 | +78% | +1.5 | +68% | +18.9% |
| Jonathan PDP |
2010–2015 5 yrs |
+5.8 | +149% | +4.7 | +147% | +5.6 | +149% | +20.0% |
| Buhari APC |
2015–2023 8 yrs |
+32.0 | +330% | +19.7 | +249% | +36.3 | +385% | +21.8% |
| Tinubu ONGOING APC |
2023–present 3 yrs |
+10.2 | +24% | +59.8 | +217% | +110.5 | +242% | +50.6% |
By actual new borrowing, Buhari borrowed the most. His government added $32.0 billion in foreign debt (+330%) over a full eight-year term — the largest of any administration, and dollars can't be inflated away by a weak naira. On the headline naira number he's also top, at +385%. Tinubu is borrowing at the fastest annual pace (+50.6%/yr), but two caveats keep it honest: his term isn't finished, and much of his +242% naira figure is the 2023 float revaluing debt that already existed — the rate went ₦460 → ₦1,386, so the same dollar loan costs 3× the naira without a single new kobo borrowed. His FX-proof foreign borrowing is +$10.2B. Only Obasanjo ever reduced the debt, and that was the one-off Paris Club write-off, not fiscal discipline alone.
Debt service is the cost of carrying the debt — mostly interest. Paying it does not shrink the debt; under every president here the debt still grew. The only administration that actually reduced the debt stock was Obasanjo, through the 2005–06 Paris Club exit (~$12B paid + $18B written off) — which is why the share of revenue eaten by debt payments collapsed under him.
| President | Term | Borrowed | Paid to service debt | Debt payments ÷ revenue | ||
|---|---|---|---|---|---|---|
| ₦tn added | ₦tn | US$bn | avg | start → end | ||
| Obasanjo PDP |
1999–2007 8 yrs |
+-1.1 | 3.4 | $30.2B | 39% | 81% 13% |
| Yar'Adua PDP |
2007–2010 3 yrs |
+1.5 | 0.9 | $7.1B | 15% | 14% 15% |
| Jonathan PDP |
2010–2015 5 yrs |
+5.6 | 2.9 | $18.9B | 19% | 18% 22% |
| Buhari APC |
2015–2023 8 yrs |
+36.3 | 22.6 | $64.2B | 59% | 33% 71% |
| Tinubu ONGOING APC |
2023–present 3 yrs |
+110.5 | 48.4 | $39.4B | 71% | 81% 68% |