Remaining Leave Calculator

Track your remaining annual leave balance throughout the UK leave year. Enter your total entitlement, days already taken, and days booked ahead to see how many days you have left and how to spread them evenly across the remaining months of your leave year.

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Managing Your UK Annual Leave Entitlement

Annual leave is one of the most valuable benefits of employment in the United Kingdom, yet many workers fail to use their full entitlement each year. Under UK employment law, all full-time workers are entitled to a minimum of 28 days of paid annual leave per year, which can include the eight public bank holidays. This statutory minimum is set by the Working Time Regulations 1998 and applies to all workers, including agency workers and those on zero-hours contracts, although part-time workers receive a pro-rata entitlement based on the number of days they work per week. Many employers offer more than the statutory minimum as part of their benefits package, with some providing 30, 33, or even 35 days of annual leave including bank holidays. Regardless of your specific entitlement, tracking your remaining leave throughout the year is essential to avoid losing unused days at the end of your leave year.

The leave year in the UK varies depending on your employer and sector. Many organisations run their leave year from January to December, aligning with the calendar year. Others, particularly those in the public sector and education, start their leave year in April to align with the financial year or in September to align with the academic year. Your employment contract or staff handbook should specify when your leave year begins and ends. Understanding your leave year dates is crucial because most employers operate a use-it-or-lose-it policy, meaning any unused annual leave is forfeited at the end of the leave year. Some employers allow a limited number of days to be carried over into the next year, typically between two and five days, but this is not a statutory requirement and depends entirely on your employer's policy.

Remaining Leave Formulas

Remaining Leave: Annual Entitlement − Days Taken − Days Booked

Months Left: Months remaining until leave year ends

Suggested Per Month: Remaining Leave ÷ Months Left

Where:

  • Annual Entitlement = Your total annual leave days for the year (statutory minimum is 28 including bank holidays)
  • Days Taken = Leave days already used this year
  • Days Booked = Leave days already approved but not yet taken
  • Months Left = Calculated from today's date to the end of your leave year

Why Tracking Leave Matters

Failing to track your annual leave can lead to several problems. The most common issue is reaching the end of your leave year with a large number of unused days and having to either take them all at once or lose them entirely. This can cause staffing difficulties for your employer and stress for you as you try to squeeze in holidays at the last minute. Conversely, some workers book too much leave early in the year and find themselves with no days left for the latter months, leading to burnout and frustration. By using a remaining leave calculator and reviewing your balance regularly, you can plan a sensible spread of holidays throughout the year, ensuring you get adequate rest and recovery in every season while avoiding the year-end scramble.

Part-Time Workers and Pro-Rata Leave

Part-time workers in the UK are entitled to the same amount of annual leave as full-time workers, calculated on a pro-rata basis. For example, if a full-time worker receives 28 days of annual leave and works five days per week, a part-time worker who works three days per week would be entitled to 16.8 days (28 divided by 5, multiplied by 3). When using this calculator, part-time workers should enter their pro-rata entitlement rather than the full-time equivalent. Bank holidays can complicate the calculation for part-time workers, as they may or may not fall on regular working days. Some employers give part-time workers a bank holiday entitlement proportional to their working hours regardless of which days they work, while others only grant bank holidays that fall on the employee's normal working days.

Example Calculation

Employee with 28 Days Entitlement, January Leave Year

An employee has 28 days of annual leave. Their leave year runs from January to December. As of June, they have taken 10 days and have 3 days booked for July.

  • Remaining = 28 − 10 − 3 = 15 days
  • Months left = 6 (July to December)
  • Suggested per month = 15 ÷ 6 = 2.5 days per month