PAYROLL & CPF GUIDE · UPDATED AUGUST 2026
IR21 tax clearance: what to do when a foreign employee resigns
Singapore does not chase departed employees across borders for unpaid income tax. Instead, it makes you, the employer, the collection point. Before a non-citizen employee leaves, you must tell IRAS, hold back everything you still owe the employee, and wait for IRAS to say how much of it to send them instead. The mechanism is Form IR21 — and most first-time employers only learn about it when it is already late.
WHO AND WHEN
Three events that trigger tax clearance.
Tax clearance applies to non-Singapore-citizen employees — foreign work pass holders and Singapore Permanent Residents alike. IRAS is explicit that it covers all pass types, including Personalised Employment Pass and Overseas Networks & Expertise Pass holders. Seniority does not exempt anyone.
Employment ends
The employee ceases employment with you in Singapore — resignation, dismissal, retrenchment or end of contract. Changing jobs within Singapore still counts: clearance is about your employment relationship ending, not about the person leaving the country.
An overseas posting starts
The employee is posted overseas. Short postings incidental to the Singapore job can be exempt — see the conditions below — but the default is that a posting triggers clearance.
They leave Singapore for 3+ months
The employee plans to leave Singapore for any period exceeding three months, for any reason. The employment does not have to end for this trigger to apply.
EXEMPTIONS
Who is exempt — more people than you might think.
This is where a competent payroll process saves real money, because filing IR21s you did not need to file wastes weeks of withheld salary and goodwill. No clearance is needed for:
Singapore citizens
Never in scope. Their income goes through the normal IR8A or Auto-Inclusion Scheme reporting by 1 March of the following year instead.
SPRs staying in Singapore
A Singapore Permanent Resident who is not leaving Singapore permanently after ceasing employment is exempt — obtain a Letter of Undertaking from the employee (IRAS provides the template) and keep it on file. The concession does not apply if the SPR is going on an overseas posting.
Short-stay and low-income foreign employees
Four IRAS-defined scenarios: worked 60 days or less in a calendar year (not available to directors, public entertainers or visiting professionals); or worked 183 days or more — in a calendar year, in a continuous period straddling two years, or over three continuous years — while earning less than S$21,000 a year. All four require that the employee had no other Singapore employer in the cessation year or the year before.
Intra-group transfers
Company merger, takeover, restructuring or a posting within the same group. Instead of an IR21, you notify IRAS through myTax Mail with the waiver template so the employment records carry over. If the employee later leaves the new entity in the transitional year, clearance is required then.
Short overseas stints
Away three to six months for training or business, or an overseas posting of up to six months that is incidental to the Singapore job — provided the employee keeps the same valid work pass, returns to work for you, and you keep paying them throughout.
Unsure? e-File and find out
e-File the IR21 on myTax Portal anyway — you get an immediate online notification if tax clearance is not required for the employee. IRAS also publishes a tax clearance calculator spreadsheet, but the portal answer is the authoritative one.
One important either/or: if you file an IR21 for an employee, you do not also report that income on their IR8A or through the Auto-Inclusion Scheme. It is one channel or the other, never both.
THE DRILL
File early. Withhold everything.
File Form IR21 at least one month before
One month before the last day of work, the start of the posting, or the departure date. Short-notice resignations happen — IRAS accepts a reason in the form (an employee's immediate resignation is its own example) — but a busy payroll month is not a valid reason, and the penalties below apply.
Withhold all monies due — from the day you know
Final salary, overtime, allowances, leave encashment, bonuses, lump sums — everything not yet paid, from the date you become aware of the impending cessation or departure. If payroll pays out the final month before anyone tells the payroll team, the money is gone — and IRAS can still hold you liable for the employee's tax.
e-Filing via myTax Portal is the sensible default: immediate acknowledgement, faster processing, and the clearance directive is viewable online instead of waiting for post. Gains from employee share schemes need their own appendices — benefits-in-kind, and exercised and unexercised ESOP/ESOW plans — so if your leaver holds options, budget extra preparation time.
AFTER FILING
The clearance directive: pay, or release.
IRAS processes most e-filed IR21s within 7 working days — paper filings within 21 days — then issues one of two directives. The electronic copy appears on myTax Portal within about 3 working days of processing; the posted copy follows in 5 to 7 working days.
Directive to Pay Tax
Remit the stated amount to IRAS out of the withheld monies within 10 days of the directive date, then release the balance to the employee. Two surprises: the amount can include the employee's unpaid tax from earlier years, not just the final employment period — and GIRO is not accepted for directive payments.
Notification to Release Monies
No tax is owed — release everything you withheld to the employee. One caveat: if you have filed an Additional or Amended IR21 in the meantime, hold the monies until the directive for that second filing arrives.
If you later owe the employee more money — a delayed bonus, a true-up — file an Additional or Amended IR21 and hold that payment until a fresh directive arrives. Do not push it through the following year’s IR8A.
PENALTIES
What it costs to get wrong.
The numbers here are current IRAS enforcement positions, and worth quoting precisely — older articles still circulate outdated ones.
Late or non-filing of the IR21
An offence. IRAS typically offers to compound it at up to S$5,000 per offence; refusing composition means prosecution, where the fine on conviction is also up to S$5,000 — and sole proprietors, partners and directors can be summonsed personally.
Late payment of a directive
A 5% penalty on the unpaid tax, plus 1% for each additional completed month (up to 12%) while it stays unpaid. IRAS can appoint your bank as its collection agent — in practice, your account is frozen until the tax is settled.
Paying out what you should have withheld
Releasing the money does not release the debt. IRAS's own FAQ confirms that an employer who paid the employee without withholding can still receive the Directive to Pay Tax and be held liable.
Set against those numbers, the process itself is cheap: a well-run IR21 is an hour of payroll work and a week of waiting.
Making it routine.
The failure mode is never the form — it is the handoff. The fix is a standing rule in your leaver process: HR tells payroll about any non-citizen resignation on the same day, and payroll freezes final payments until clearance. If payroll is outsourced, your provider should be asking the citizenship question on every offboarding, unprompted. That is how we run it: the IR21, the withholding, the directive payment and the release all sit inside the offboarding checklist, alongside the CPF and year-end reporting obligations that continue for the rest of the team.
Common questions.
Do I need to file an IR21 for a Singapore PR who is resigning?
Only if they are leaving Singapore permanently or going on an overseas posting. If the SPR is staying in Singapore, collect a Letter of Undertaking from them using IRAS's template, keep it on file, skip the IR21, and report their income through IR8A or AIS as normal.
My employee resigned with only two weeks' notice. Can I still file in time?
File immediately and state the reason for the short notice in the form. IRAS accepts valid reasons — an employee's immediate resignation is its own example — but you must still withhold all monies due from the day you learned of the departure.
How much of the final salary do I withhold?
All of it — salary, allowances, leave encashment, bonuses and any other sums due — from the date you become aware of the impending cessation or departure. You release whatever remains after paying any amount IRAS states in the Directive to Pay Tax.
How long does tax clearance take?
Most e-filed IR21s are processed within 7 working days; paper filings within 21 days. The clearance directive appears on myTax Portal within about 3 working days of processing, with the posted copy following in 5 to 7 working days.
What if the tax bill is more than the money I withheld?
Pay IRAS the withheld amount and inform them; the employee remains liable for the shortfall. The risk to avoid is the reverse: if you released money you should have withheld, IRAS can hold you liable for the tax up to the amount you failed to withhold.
Do I also file an IR8A for an employee I filed an IR21 for?
No. The IR21 replaces IR8A and AIS reporting for that employee. If more income becomes payable later — a delayed bonus, a true-up — file an Additional or Amended IR21 before releasing it, rather than reporting it in the following year's IR8A.
Official sources
Deadlines, processing times and penalty amounts are as published by IRAS, checked on 27 August 2026.
- IRAS: Tax clearance for foreign & SPR employees (IR21)
- IRAS: Tax clearance for employees — who needs it
- IRAS: Filing tax clearance (Form IR21)
- IRAS: Processing time for tax clearance
- IRAS: Clearance directives
- IRAS: Late filing or non-filing of tax clearance
- IRAS: Late payment or non-payment of withheld monies
This guide provides general information, not tax or payroll advice. Whether tax clearance is required depends on the employee’s residency, work pass, employment history and departure plans, and IRAS’s current guidance, which changes from time to time.
WRITTEN BY
Jacqueline May
Principal Accountant · Chartered Accountant (Singapore), ISCA member
Jacqueline is a Chartered Accountant (Singapore) and ISCA member, and the Principal Accountant at Synergy Accounting, a Singapore practice established in 2013. She works on corporate tax, GST and ACRA compliance for small and medium businesses — the filings, deadlines and judgement calls most owners would rather hand over. These guides are written from what she sees in practice.