2026-Q3Official IFTA, Inc. figures.
$0.4990 per gallon, diesel (USD)
Connecticut's rate this quarter is one of the higher diesel rates in the IFTA system.
No separate fuel surcharge here — the rate above is the whole story.
Connecticut diesel rate history
Every official quarter since Q1 2023 (January to March), from IFTA, Inc.'s rate tables. The change is against the quarter before, in US$ per gallon.
| Quarter | US$/gal | C$/litre | Surcharge (US$/gal) | Change |
|---|---|---|---|---|
| Q3 2026 (July to September) | $0.4990 | C$0.1843 | — | +$0.0100 |
| Q2 2026 (April to June) | $0.4890 | C$0.1768 | — | No change |
| Q1 2026 (January to March) | $0.4890 | C$0.1778 | — | No change |
| Q4 2025 (October to December) | $0.4890 | C$0.1783 | — | No change |
| Q3 2025 (July to September) | $0.4890 | C$0.1751 | — | −$0.0350 |
| Q2 2025 (April to June) | $0.5240 | C$0.1979 | — | No change |
| Q1 2025 (January to March) | $0.5240 | C$0.1970 | — | No change |
| Q4 2024 (October to December) | $0.5240 | C$0.1882 | — | No change |
| Q3 2024 (July to September) | $0.5240 | C$0.1903 | — | +$0.0320 |
| Q2 2024 (April to June) | $0.4920 | C$0.1760 | — | No change |
| Q1 2024 (January to March) | $0.4920 | C$0.1741 | — | No change |
| Q4 2023 (October to December) | $0.4920 | C$0.1753 | — | No change |
| Q3 2023 (July to September) | $0.4920 | C$0.1722 | — | No change |
| Q2 2023 (April to June) | $0.4920 | C$0.1779 | — | No change |
| Q1 2023 (January to March) | $0.4920 | C$0.1773 | — | — |
Where these figures come from
- Rates: IFTA, Inc. tax rate matrix, the table every IFTA member jurisdiction reports its rates to.
- Connecticut's own website, as listed by IFTA, Inc.: https://www.portal.ct.gov/drs
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