In-House vs Outsourced Payroll in Singapore: 2026 Costs

Your first hire is exciting. Your fifth is when payroll starts eating your evenings: CPF submissions by the 14th, a new joiner's pro-rated salary, someone's overtime, and the IR8A forms waiting at the end of the year.

At some point every founder asks the same question. Should we keep payroll in-house, or hand it to someone else? This guide compares what each option costs in 2026, what's included, where the risks sit, and the signs that it's time to switch.

What running payroll involves in Singapore

Whoever runs your payroll, these jobs have to be done, on time, every month and every year:

1. Calculate and pay salaries, including allowances, overtime, unpaid leave and pro-rated pay for joiners and leavers.
2. Issue itemised payslips that meet MOM's requirements.
3. Pay CPF for Singapore citizens and PRs. It's due at the end of each month, and late-payment interest applies if it isn't paid by the 14th of the following month. The employer pays 17% for employees aged 55 and below, on wages up to the S$8,000 monthly Ordinary Wage ceiling (CPF Board). Rates for older workers are lower; our CPF rates guide has the full table.
4. Pay the Skills Development Levy of 0.25% of monthly wages for every employee, including foreigners, with a minimum of S$2 and a maximum of S$11.25 per person.
5. Pay the foreign worker levy for S Pass and Work Permit holders.
6. File IR8A for every employee by 1 March. Employers with five or more staff must file through the Auto-Inclusion Scheme.
7. File IR21 at least one month before a non-citizen employee stops working for you, and hold back the money owed to them until IRAS clears it (IRAS).

Our payroll guide walks through each of these in more detail.

What in-house payroll costs

"In-house" means one of two things for an SME.

The founder or an office admin runs it. There's no new salary, but there is a cost: payroll software, the hours each month, and the time it takes to keep up with rule changes such as the CPF rate changes that take effect each January. For a team of three, that can be manageable. For a team of fifteen with foreign staff, part-timers and variable pay, it rarely is.

You hire someone to do it. Here's an example using an illustrative salary of S$4,000 a month:

A payroll hire usually takes on other HR and admin work too, so the full salary isn't a payroll-only cost. Leave cover, software and the year-end bonus sit on top.

What outsourced payroll costs

Outsourced payroll is priced per employee, per month or per year. Full-service quotes we see usually run S$50 to S$70 per employee a month. For a team of ten, that's S$6,000 to S$8,400 a year, against more than S$56,000 for the illustrative hire above. Harvest's payroll starts from S$55 per employee a month, added to our accounting package.

Some online platforms advertise lower prices, often bundled with their own accounting or incorporation packages. Check what the price covers before you compare: leave records, IR21 for departing foreign staff and help when something goes wrong aren't always included. Many other providers quote on request after seeing your headcount and pay structure.

What an outsourced payroll service should include

Before comparing prices, check what each quote covers. A complete service includes:

1. Monthly payroll processing and itemised payslips.
2. CPF calculation and submission.
3. SDL calculation and payment.
4. Correct treatment of allowances, bonuses and reimbursements for CPF.
5. Annual IR8A filing, including AIS submission.
6. IR21 tax clearance for departing foreign staff.
7. Leave records.

Things that are often extra: HR advice, employment contracts, work pass applications, benefits administration and retrenchment calculations. Ask, too, about setup fees, off-cycle payroll runs and what happens if you add a second company.

Three more questions are worth asking before you sign:

1. Who approves and who pays? In a typical set-up the provider calculates payroll, you approve it, and the salaries go out from your company's bank account. Know where that line sits.
2. How is employee data protected? Payroll holds NRIC numbers, bank details and salaries. Ask who can access it, where it's stored, and how the provider meets its obligations under the PDPA.
3. What happens if you leave? You should be able to take your payroll history, year-to-date figures and records with you.

In-house vs outsourced: side by side

The real risk of getting payroll wrong

The cost of payroll mistakes rarely shows up on day one. It shows up later:

• Late CPF. CPF Board charges interest of 1.5% a month on late contributions, with a minimum of S$5, and can take further enforcement action (CPF Board).
• Missed IR8A. An employer that misses the 1 March deadline can be fined up to S$5,000. Our IR8A guide covers the filing rules.
• Missed IR21. If a foreign employee leaves without tax clearance, the employer can be fined, and can become liable for the tax the employee didn't pay.
• Wrong CPF on allowances or bonuses. Underpaid CPF has to be made good, often with interest, once it's found.

When to switch

There's no single headcount where outsourcing becomes the right call. These are the signs we often see:

1. Payroll takes more than a few hours each month, and it's founder time.
2. You've hired foreign staff, part-timers or people on commission.
3. Something has gone wrong: a late CPF payment, a wrong payslip, a forgotten IR21.
4. The person who runs payroll is leaving, or is the only one who knows how it works.
5. You want salaries kept confidential from the rest of the team.

Bringing payroll in-house makes more sense when your team is large enough to need a full-time HR person anyway, and payroll becomes one part of their job.

Where Harvest fits

Our payroll service starts from S$55 per employee a month and covers payslips, CPF and SDL, IR8A, IR21 for departing foreign staff, and leave records. It's run by the same team that does your bookkeeping, so payroll and your accounts always agree.

If you're switching, we collect your existing payroll records, set up each employee, and run a parallel check so the first cycle is right. Switching at the start of a calendar year keeps the IR8A simplest, but you can move at any point if your year-to-date figures come across with you. Book a free consultation and we'll quote your payroll to your headcount, with no obligation.

Frequently asked questions

How much does outsourced payroll cost in Singapore? A full service typically costs S$50 to S$70 per employee a month. Some online platforms charge less, so check what's included before comparing. Harvest's payroll starts from S$55 per employee a month.

Does outsourced payroll include CPF and IR8A? A complete service should include monthly CPF submission, SDL and the annual IR8A filing. Check whether IR21 for departing foreign staff is included too, because some providers charge for it separately.

Do employers pay CPF for Employment Pass holders? No. CPF applies to Singapore citizens and permanent residents. Employers still pay SDL for every employee, including foreigners, and a foreign worker levy for S Pass and Work Permit holders.

Who is responsible if an outsourced provider makes a payroll mistake? The employer stays legally responsible to CPF Board and IRAS for paying and filing on time. That's why it matters who your provider is, and what their contract says about correcting errors.

When should a Singapore SME outsource payroll? Common triggers are hiring foreign staff, a payroll mistake, the payroll person leaving, or payroll taking up founder time each month. There's no fixed headcount; it depends on how complex your pay is.