W1/M1 Tax Code: Get Your Money Back (A Step-by-Step 2025 Fix)
When you check your payslip and notice a code like “1257L W1” or “1257L M1”, it can be confusing and even alarming. Why is more tax being taken than expected? Am I doing something wrong? The answer usually lies in emergency tax codes — temporary codes HMRC issues until it has the full information about

