Mplx (MPLX) Tax Rate (2012 - 2026)

Mplx's Tax Rate history runs 15 years deep, the most recent figure standing at 0.11% for Q1 2026.

• In Q1 2026, Tax Rate rose 2.0% year-over-year to 0.11%; the TTM figure through Mar 2026 stood at 0.13% (down 10.0% YoY), while the FY2024 annual figure was 0.23%, down 5.0% from the prior year.
• Tax Rate came in at 0.11% for Q1 2026 at Mplx, down from 0.19% in the prior quarter.
• Over five years, Tax Rate peaked at 0.78% in Q4 2023 and troughed at 0.07% in Q3 2022.
• The 5-year median for Tax Rate is 0.14% (2026), against an average of 0.24%.
• Peak annual rise in Tax Rate reached 54 bps in 2023, while the deepest fall reached 49 bps in 2023.
• A 5-year view of Tax Rate shows it stood at 0.24% in 2022, then soared by 222 bps to 0.78% in 2023, then plunged by 42 bps to 0.45% in 2024, then plunged by 57 bps to 0.19% in 2025, then tumbled by 44 bps to 0.11% in 2026.
• Per Business Quant data, the three most recent Tax Rate figures were 0.11% in Q1 2026, 0.19% in Q3 2025, and 0.09% in Q2 2025.