Joined on the 12th, left on the 20th: how to pay staff for part of a month

A monthly salary is easy to calculate when someone works the full month. It gets less clear when a new worker joins after the month has started, someone leaves before payday, or both events happen in the same month. The calendar-day method gives you a simple starting point: find the daily rate for that month, count the calendar days the person was employed, then account for any unpaid absence and amounts already paid.

Three situations that need a part-month calculation

Someone joins mid-month. Pay begins on the joining date. If the person starts on the 12th, count the 12th as a paid day and include every calendar day through month end. Week offs and approved paid leave within that period remain paid.

Someone leaves mid-month. Count from the first day of the month through the last working day, including that final day. The person is paid for those calendar days, including any week off or paid leave inside the period.

Someone joins and leaves in the same month. Count from the joining date through the last working day, with both dates included. For example, a worker who starts on the 12th and leaves on the 20th has a nine-day employed period. Then check whether any of those dates were unpaid absences and whether an advance or other agreed payment needs to be settled.

Keep the dates clear in the attendance register. A short, written calculation is easier for the owner and worker to check than a single unexplained amount on payday.

Calendar-day method: calculate it step by step

1. Start with the agreed monthly salary.
2. Count the calendar days in that month: for example, 30 or 31.
3. Divide the monthly salary by the days in the month to get the daily rate.
4. Count the employed period inclusively: include the joining day and the last working day. Week offs and paid leave inside that period count as paid days.
5. Subtract any unpaid absence days that fall inside the employed period. Do not treat a week off or approved paid leave as unpaid absence.
6. Multiply the daily rate by the paid days, then account for advances or other amounts already paid and any additional dues.

For accuracy, keep the full calculation until the final amount and round the result to the nearest paisa. If you round the daily rate first and multiply it many times, you can get a small difference.

Worked examples

The examples below assume the calendar-day method, no unpaid absences and no extra dues unless stated. Both the joining date and last working day are paid.

The “plus one” matters: counting from the 12th through the 30th gives 19 days, not 18. Week offs and paid leave during those days stay included.

The exact daily rate is ₹580.645…; the final part-month amount is rounded to ₹11,612.90. The 20th is included as a paid day.

This settlement assumes there were no unpaid absences or other additions and that the advance is properly recoverable under the agreed terms. Show the worker the salary earned and the advance separately so the final balance is easy to understand.

What if there is an unpaid absence?

First count the calendar period the worker was employed. Then identify any days in that period that were genuinely unpaid absences under the applicable terms. Subtract those days from the paid-day count before multiplying by the daily rate. Do not remove weekly offs or approved paid leave from the count.

Keep the absence date and reason in the register, and show the deduction on the salary slip. If the status of a day is disputed, check the roster and leave record before making the final calculation.

If your shop uses the 26-working-day method

Some employers use the 26-working-day convention for monthly salaries. Under that approach, count the scheduled working days in the relevant part-month period instead of calendar days. Week offs are treated according to the agreed method and applicable rules; do not mix a 26-day divisor with a calendar-day count. The 26-or-30-day salary guide explains the difference between those methods.

A clear final-settlement checklist

When someone leaves, prepare one statement that both of you can follow. Include:

• Final salary for the employed period, with joining and last working dates.
• Unpaid absence days, if any, with the calculation shown.
• Advances or other payments already made and any recovery agreed.
• Bonus, overtime, reimbursements or other dues still payable.
• The final balance and the date it was paid.
• A signed salary slip, or a WhatsApp confirmation that the worker received and checked it.

The Code on Wages contains timing provisions for wages due when employment ends or a worker resigns. The applicable requirement can depend on the circumstances, current notifications and other laws. This is general information, not legal advice; check the current rule for your workplace with the labour department or a qualified adviser rather than relying on a generic date.

Frequently asked questions

Do I count the joining date as a paid day?

Yes, this guide’s calendar-day method counts the joining date when the worker starts that day. It also counts the last working day. Record the dates clearly so both sides can check the period.

Are week offs paid when someone joins or leaves mid-month?

Week offs and approved paid leave inside the employed period remain paid days under this method. Do not treat them as unpaid absence simply because the worker did not attend the workplace that day.

How do I deduct an advance from the final pay?

Show the salary earned first, then list the advance already paid and the balance. Recover it only according to the agreed terms and applicable deduction rules; keep the advance entry and final slip.

What if an employee joins and leaves in the same month?

Count from the joining date through the last working day, including both dates. Subtract only unpaid absences inside that period, then account for advances and any other dues.