Hong Kong payroll looks deceptively simple. There is no income tax withholding. The MPF rate is a flat 5% from each side. The statutory holiday list is short. Compared with mainland China or most Western jurisdictions, the calculation itself is straightforward — and that is precisely why HK SMEs underestimate it. The compliance hooks sit not in the calculation but in the timing rules, the part-time enrolment rules, the employer return forms, and the consequences of getting any of them wrong.
This guide is for HK SME owners deciding whether to outsource payroll, what “MPF compliance” actually involves, and how to read the 2026 outsourcing market sensibly. It is the services-side companion to our software-side piece on payroll and MPF features in HK accounting software.
What payroll outsourcing actually covers
“Payroll outsourcing” sits on a spectrum. At the lightweight end, the provider receives a monthly headcount file from you and runs the calculation. At the full-service end, the provider handles every touchpoint with the employee from offer letter to final settlement. A typical mid-tier scope for HK SMEs includes:
- Monthly payroll calculation — gross pay, statutory holiday accrual, leave taken, allowances, deductions.
- Payslip generation and distribution — usually electronic, sometimes printed.
- Autopay file preparation — the bank-format .txt file that initiates salary payment.
- MPF contribution calculation — both employer and employee portions, with the proper ceiling and floor rules.
- MPF remittance file to the chosen MPF scheme provider.
- IR56 employer return preparation — annual BIR56A and per-employee IR56B, plus IR56F for terminations and IR56G for departures.
- Statutory record keeping — wage records as required by the Employment Ordinance.
Some providers add HR administration (offer letters, contract templates, leave management), but those are HR services rather than payroll-and-MPF compliance proper.
The MPF compliance pieces SMEs trip over
The MPFA’s enforcement is not aggressive by global standards, but the rules are precise and the late-contribution surcharge is real (5% on top of any unpaid amount, plus contribution arrears). The pieces that catch HK SMEs out:
- The 60-day enrolment rule. Every new employee aged 18 to 64 must be enrolled in an MPF scheme within 60 days of starting employment. Exceptions are narrow — domestic helpers, self-employed not engaged under contract of employment, employees on contracts under 60 days. Missing the 60-day deadline triggers MPFA enforcement, not just a quiet penalty.
- The contribution ceiling and floor. In 2026, the relevant income for mandatory contributions is capped at HK$30,000/month and floored at HK$7,100/month — but the floor only applies to the employee’s mandatory contribution, not the employer’s. Software that gets the asymmetry wrong over-deducts.
- Part-time and casual employee rules. Anyone working 60 days or more is treated as a regular employee for MPF. The construction and catering industry has its own daily-paid scheme (Industry Scheme) — getting the wrong scheme is a meaningful compliance breach.
- Voluntary contributions vs mandatory. An employer offering above-floor benefits needs to label clearly which portion is mandatory and which is voluntary, because the tax treatment and withdrawal rules differ.
- Contribution due dates. Mandatory contributions are due by the 10th day of the month following the contribution period. The MPFA tracks late submission strictly.
None of these are exotic, but each one is a real source of penalties when the SME’s payroll runs in someone’s head rather than in a system.
IR56 employer returns: where most SMEs lose a weekend each April
The IRD requires employers to file annual returns for every employee. The key forms:
- BIR56A — the annual employer return covering the tax year (1 April – 31 March), filed in April or May.
- IR56B — the per-employee detail attached to BIR56A, listing everyone employed at any point during the year and their remuneration.
- IR56F — filed within one month of an employee’s cessation of employment.
- IR56G — filed at least one month before an employee leaves Hong Kong, with potential tax-clearance implications.
- IR56M — annual return for non-employee remuneration paid to consultants and freelancers above the reporting threshold.
A payroll outsourcer worth their fee will generate all the forms from the year’s data automatically. Doing it manually for a 15-person SME is a meaningful weekend of clerical work — and where transcription errors cost the most, because the IRD cross-references IR56B figures with the employee’s Salaries Tax return.
2026 cost benchmarks for HK payroll outsourcing
Pricing varies by provider sophistication and scope. Indicative ranges for 2026:
- Lightweight processing (calculation, payslip, autopay file, MPF remittance): HK$80–150 per employee per month, with a typical minimum monthly fee of HK$1,500–2,500.
- Standard SME package (above plus IR56 forms, leave tracking, basic HR admin): HK$150–300 per employee per month, minimums around HK$3,000–5,000.
- Comprehensive HR + payroll (above plus contract management, performance review admin, MPF scheme review): HK$300–600 per employee per month, often with a fixed admin retainer.
- Setup fees for a new outsourced payroll relationship: HK$2,000–8,000 depending on scope and historical data migration required.
For comparison, a part-time HR or accounts assistant handling payroll in-house typically costs HK$8,000–15,000 a month all-in once you factor in salary, MPF, and pro-rated leave. The crossover point where outsourcing becomes obviously cheaper sits around 5–8 employees for most HK SMEs.
When outsourcing pays off
Clearer indicators that the outsourcing conversation is overdue:
- Headcount is moving past 5 and you do not have a dedicated HR or accounts person.
- You have missed an MPF contribution deadline in the past 12 months.
- The IR56 season takes more than half a day of your time.
- You have employees on different scheme rules (regular plus daily-paid Industry Scheme members).
- You are running multiple HK entities and need consolidated payroll reporting.
- Staff turnover is high enough that IR56F filings are happening more than twice a year.
Outsourcing is genuinely less compelling for very small payrolls (1–3 staff with stable headcount), where a competent in-house process plus payroll-aware accounting software is usually enough — see our software-side payroll guide for the in-house path.
The risks of getting it wrong
The exposure for getting HK payroll wrong sits in three places:
- MPFA penalties. 5% surcharge on late contributions, plus the contributions themselves. The MPFA can also pursue offences resulting in fines of up to HK$50,000 per breach.
- IRD penalties. Late or incorrect IR56 filing carries fines and, in serious cases, prosecution. More commonly, errors trigger queries that consume staff time and damage the working relationship with the IRD.
- Employee disputes. Wrong holiday accrual, wrong final settlement, miscalculated long-service payment — these are the issues that end up at the Labour Department’s conciliation service. Each one consumes management time disproportionate to its monetary value.
None of these are catastrophic individually, but the cumulative drag of running payroll on the side of someone’s main job is what eventually makes the business migrate to either better software or a payroll outsourcer.
How Giga Accounting by 凌峰會計 handles outsourced payroll and MPF
Our outsourced payroll service uses Giga Accounting’s payroll module as the engine, with our team handling the monthly run, MPF remittance, and the full IR56 cycle. Pricing is transparent and per-employee — you see what each headcount adds before signing up.
If you are weighing outsourcing against keeping payroll in-house, the most useful next step is a 30-minute conversation about your headcount profile and current process. Start at the bookkeeping and accounting services page, or compare against the in-house track via our payroll software guide. For a broader view of what to outsource and what to keep in-house, our companion piece on outsourced bookkeeping for HK SMEs covers the same decision framework on the bookkeeping side.
