Birchtech (BCHT) Tax Rate (2015 - 2026)

Birchtech has disclosed Tax Rate across 10 years of filings, most recently posting 0.03% for Q1 2026.

• Tax Rate for Q1 2026 came in at 0.03%, up 82.0% year-over-year; the trailing twelve-month figure through Mar 2026 was 2.13% (down 491.0% YoY), and the FY2025 annual result was 2.37%, down 498.0% from the prior year.
• Tax Rate came in at 0.03% for Q1 2026 at Birchtech, up from 10.2% in the prior quarter.
• In the past five years, Tax Rate ranged from a high of 39.14% in Q3 2024 to a low of 10.2% in Q4 2025.
• The 5-year median for Tax Rate is 0.03% (2026), against an average of 2.11%.
• Across the five-year window, Tax Rate soared 802 bps in 2023 and sank 3906 bps in 2025, its largest moves.
• Birchtech's Tax Rate stood at 2.87% in 2022, then surged by 280 bps to 5.15% in 2023, then tumbled by 107 bps to 0.35% in 2024, then plunged by 2803 bps to 10.2% in 2025, then surged by 100 bps to 0.03% in 2026.
• The last three Tax Rate figures came in at 0.03% (Q1 2026), 10.2% (Q4 2025), and 0.08% (Q3 2025), per Business Quant data.