# Mexico TIIE 28-day Interbank Rate, Monthly average (% p.a.)

Mexico TIIE 28-day Interbank Rate, Monthly average (% p.a.) was 6.8% in October 2026, unchanged from September 2026 and down 1.0 percentage points from a year earlier.
Over the past ten years it has ranged from 4.3% (Mar 2021) to 11.5% (May 2023), averaging 7.9%.

- Source agency: Banco de Mexico SIE (Sistema de Informacion Economica)
- Makrognosis code: `MX.IR.M.NSA`
- Frequency: monthly
- Units: % p.a.
- Coverage: 1996-01-01 to 2026-10-01 (370 observations)
- Page: https://makrognosis.robomacro.com/data/mexico/tiie-28-day-interbank-rate-monthly-average-pct-p-a

## Recent data

| Period | Value |
|---|---:|
| October 2026 | 6.8% |
| September 2026 | 6.8% |
| August 2026 | 6.8% |
| July 2026 | 6.8% |
| June 2026 | 6.7% |
| May 2026 | 6.8% |
| April 2026 | 7.0% |
| March 2026 | 7.2% |
| February 2026 | 7.3% |
| January 2026 | 7.3% |
| December 2025 | 7.5% |
| November 2025 | 7.6% |
| October 2025 | 7.8% |
| September 2025 | 8.0% |
| August 2025 | 8.1% |
| July 2025 | 8.3% |
| June 2025 | 8.7% |
| May 2025 | 9.1% |
| April 2025 | 9.3% |
| March 2025 | 9.7% |
| February 2025 | 9.9% |
| January 2025 | 10.3% |
| December 2024 | 10.4% |
| November 2024 | 10.6% |

## API

```
curl -H "X-API-Key: $MAKROGNOSIS_KEY" \
  "https://makrognosis.robomacro.com/v1/series/MX.IR.M.NSA"

# Python
import requests
r = requests.get("https://makrognosis.robomacro.com/v1/series/MX.IR.M.NSA",
                 headers={"X-API-Key": KEY})
obs = r.json()["observations"]
```