SG CPF Contribution Checker Kit
Give the AI a salary, any bonus and a date of birth, and it works out the employer share, employee share and total CPF at the rates for wages from 1 January 2026, plus the Skills Development Levy. It applies the S$8,000 OW ceiling, the annual AW ceiling, the lower wage bands and CPF's exact rounding, and shows the working line by line. It also covers SPR 1st and 2nd year graduated rates.
CPF errors usually come from the wrong age band, the AW ceiling or rounding, and payroll systems rarely show the working.
Claude, ChatGPT or any browser. The employee's citizenship or SPR year, date of birth, monthly OW and any AW, and AW already subject to CPF this year.
Employer, employee and total CPF for the month. AW subject to CPF and AW above the ceiling. SDL and employer cost of CPF plus SDL.
It will not submit CPF, change payroll, or decide whether a disputed payment is OW or AW without your confirmation.
Free trial download. No card needed.
Case study: the problem it fixes
Illustrative scenario, not a client story
Illustrative: a small firm pays a December bonus to a 55 year old manager earning above the OW ceiling and is unsure which rate and how much of the bonus attracts CPF. The payroll system shows one number, the bookkeeper's spreadsheet shows another, and the CPF submission is due.
Why it costs money, not free
It shows every step against CPF's own tables and rounding, so a difference can be traced to a rate, a ceiling or a rounding choice in minutes. 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
- Choose citizenship or SPR year and enter the date of birth
- Enter Ordinary Wages and any Additional Wages for the month
- Add AW already subject to CPF this year if a bonus was paid before
- Read the employer, employee and total CPF with SDL and the working
- Compare with payroll and act on any flags
- AI skill with step by step CPF and SDL rules
- 2026 rate tables, ceilings and rounding with official CPF sources
- Python checker with a self test against CPF's own worked examples
- Interactive CPF contribution checker that runs in the browser
- Interactive artifact: CPF Contribution Checker (opens in your browser or in Claude)
- Employer, employee and total CPF for the month
- AW subject to CPF and AW above the ceiling
- SDL and employer cost of CPF plus SDL
- Flags for age band changes and AW ceiling recalculation
Try this first:
Check CPF for December 2026: Singapore Citizen born 15 March 1971, OW S$9,200, bonus S$12,000, no AW earlier in the year.
- 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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