The 1256L tax code is similar to 1257L but reflects a slightly reduced tax-free personal allowance of £12,560. This can happen due to adjustments from the previous tax year, benefits in kind, or other changes HMRC made to your tax-free entitlement. The “L” still means you’re eligible for a personal allowance. It’s important to review your tax code regularly, especially if you’ve changed jobs or circumstances, as a minor change in the number could affect your take-home pay.
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