Tax Code 0T M1 Is Costing You Hundreds — Here’s How to Fix It (2025)
If your payslip suddenly looks slimmer and the letters 0T M1 are staring back at you, you’re not imagining things. This tax code often appears without warning and can quietly shave hundreds off your take-home pay. The term here — tax code 0T M1 — isn’t just jargon. It usually means HMRC doesn’t have enough

