Use this to start a conversation, not to make the decision for you. The Work Week does not tell you whether to work more, cut your days or stop working. Check your employer’s terms, childcare eligibility, actual nursery quote and payslips before deciding. Rough planning estimate only — not tax or financial advice. Uses 2026/27 UK income tax and NI bands and the High Income Child Benefit Charge rules (withdrawn between £60k–£80k for the higher earner). If you enter your actual take-home, the calculator carries the difference from its tax estimate forward proportionally; this is still an estimate, not a payslip forecast.