SG Leave Pro-rating Kit
Gives the year of service, the statutory minimum and the completed months in the current year of service, then pro-rates and rounds exactly as MOM does. Approved unpaid leave is excluded, the notice period is counted, and a contract that gives less than the statutory minimum is flagged. For leavers it states MOM's rule on unused leave and values it at the gross rate of pay.
Pro-rated annual leave is often worked out on the wrong year, the wrong month count or the wrong rounding, so leavers are paid or charged the wrong number of days.
Start date, last day or notice date, contract entitlement, unpaid leave and leave taken in the current year of service
Pro-rated statutory and contract leave with the working shown. Last day of employment from the notice period. Leave balance and value of unused leave for leavers.
It will not approve leave, decide encashment or salary deductions, or interpret the contract; the employer confirms every figure.
Free trial download. No card needed.
Case study: the problem it fixes
Illustrative scenario, not a client story
Illustrative: an HR executive pro-rates a leaver's leave by calendar months, ignores two weeks of unpaid leave and rounds 2.4 days up. The final pay overstates leave and the error only surfaces at payroll review.
Why it costs money, not free
Leave pro-rating is checked every time someone joins or leaves, and the MOM method has several traps: year of service, completed months, rounding, unpaid leave and notice. One consistent method with the working shown stops the disputes. Every kit is written and tested by a Chartered Accountant (Singapore), kept to current Singapore rules, and comes with the artifact, templates and setup sheet, not just a prompt.

How it works
- Enter the start date and the last day, or the notice date and length
- Enter the contract entitlement, unpaid leave and leave taken
- Check the year of service, completed months and rounded days against the statutory minimum
- Review the leaver outcome and value of unused leave
- Confirm the figures before the letter or payroll entry
- AI skill (SKILL.md) for Claude, Claude Code or ChatGPT
- Company setup sheet for your contract leave scale
- MOM rules reference with official links and check dates
- Leave pro-rating calculator with MOM's worked examples built in
- Interactive artifact: Leave Pro-rating Calculator (opens in your browser or in Claude)
- Pro-rated statutory and contract leave with the working shown
- Last day of employment from the notice period
- Leave balance and value of unused leave for leavers
- Flags for under 3 months' service, contract shortfall and overdrawn leave
Try this first:
Pro-rate annual leave for an employee who started on 15 Jun 2022 and gave 1 month's notice on 10 Sep 2026. Contract gives 14 days, 2 days taken this year of service.
- Download the ZIP from your order email or your account.
- Open the setup sheet and fill in your company details (about 10 minutes).
- Claude: open Customize, then Skills, upload the skill folder as a zip and switch it on.
- ChatGPT or Copilot: paste SKILL.md into a Project, Custom GPT or agent and attach the other files as knowledge.
- Run the test prompt on the "What you get" tab.
Licence. One company, unlimited internal use. You may edit the files for your own company. You may not resell, share publicly or redistribute them.
Refunds. Skills are delivered instantly, so purchases are final once the download is opened. If a kit does not work as described, email us within 14 days and we will fix it or refund you.
Upgrades. A one-off kit purchase and the one-off customisation service cover the version delivered on the day. Later skill upgrades (updated SKILL.md, references and templates) are included only with the Finance Skills Plan or HR Skills Plan while the plan is active.
Plans. The Finance Skills Plan is S$99 a month and the HR Skills Plan S$59 a month, billed by card until you cancel. Cancel any time in your account; access continues to the end of the paid month. Downloads made during the plan stay usable under the same one company licence. Customisation is not included in a plan.
Customisation. Delivered within 7 days of receiving all the documents we ask for. First revision free; further revisions S$120 each. Customisation fees are refundable in full until work starts.
Not professional advice. Skills are general reference tools for Singapore businesses. Review every output before use and take legal or tax advice for contested or high value matters.
Two ways to start
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