# Does payroll software actually file, or just calculate?

URL: https://skillsforce.com.sg/insights/does-hr-payroll-software-file-cpf-ir8a-singapore
Title: Does payroll software actually file CPF and IR8A? | Skillsforce
Description: Whether HR and payroll software files with CPF Board and IRAS, or just calculates: what One-Stop Payroll covers, and the questions to ask a vendor first.
Updated 11 August 2026. First published 11 August 2026. Author: Skillsforce (People-operations team)
Category: comparisons

Every vendor says their software handles CPF and IR8A. Some of that is submission, done for you. Most of it is computation, handed back as a file you still have to file yourself. The difference is worth knowing before you sign, not after the first bonus run.

## Does HR and payroll software file CPF and IR8A for you?

It depends what the vendor means by "file". Some software genuinely submits to CPF Board and IRAS through a government API. Most computes the figures correctly and hands back a file, a bank upload, a CPF record, an IR8A return, that someone on your team still submits. Either way, the employer stays legally liable for the result.

## Key points

- "Files with CPF and IRAS" can mean three different things: computes the figures, generates a file you still upload, or submits directly via API. Ask a vendor which one their product actually does.
- The employer stays legally liable for CPF and IRAS filings under the Income Tax Act and the CPF Act, whatever the software does or claims to do.
- One-Stop Payroll lets OSP-ready software submit AIS to IRAS, monthly CPF to CPF Board, and MOM's employment dataset from one platform. IR21, SDL and bank disbursement are not named among what it covers.
- Even verified, capable platforms carry real, named gaps: benefits-in-kind reporting, bank file formats and disbursement vary product to product, so software answers the arithmetic question, not the whole compliance one.
- Skills Development Levy is usually auto-computed for Citizens and Permanent Residents but keyed in manually for foreign employees, a detail easy to miss when comparing vendors.
- The CPF Submission Number and the Corppass access behind it stay with your entity regardless of which software you buy.

Every payroll vendor's site says something like "CPF, IR8A and AIS, handled." It is rarely a lie, but it is rarely the whole answer either. Some products genuinely submit to CPF Board and IRAS on your behalf, through a government API. Most compute the numbers correctly and hand you back a file, a bank upload, a CPF EZPay record, an IR8A return, that you or someone on your team still has to log in and submit. Both are honestly "payroll software". Only one of them removes a step from your month.

This is worth settling before you sign, not after the first bonus run reveals which one you bought. It matters more than the feature comparison, because neither version moves the legal liability off your desk.

## Who stays liable if the software gets it wrong?

Legal liability for CPF and IRAS filings does not change based on which software you buy, and that is the fact most buyers get backwards. Section 68 of the Income Tax Act puts the annual employment-income return on "every employer", not a software vendor. Section 94 sets the general penalty for not filing at all: a fine of up to S$5,000, and up to six months' imprisonment in default of payment. Section 95 covers a negligent incorrect return specifically, at a penalty equal to double the tax undercharged, and on its wording that reaches an employer's own required return. It is the tier that fits an honest data error rather than deliberate evasion. The CPF Act's definition of employer is written broadly enough to also catch "any manager, agent or person responsible for the payment of wages... on behalf of an employer," so handing the computation to a vendor does not narrow who can be pursued. It widens the list of people who could be, without removing the company from it.

Neither CPF Board nor IRAS has published a sentence stating "you remain liable if you outsource." That is not a regulator's quote, it is the plain consequence of how the statutes above are written. We cover it in full, alongside the wider four-way choice between in-house, software, a bureau and full outsourcing, in [payroll in-house, software or outsourced](/insights/payroll-in-house-software-or-outsourced-singapore), and against a bureau specifically in [payroll bureau vs software](/insights/managed-payroll-bureau-vs-software-singapore). Here, the short version is enough: whatever a vendor's product does, the CPF Submission Number and the IRAS filing sit under your UEN, not theirs, and the deadlines on the [payroll compliance calendar](/insights/singapore-employer-payroll-compliance-calendar) do not move because a vendor is involved.

## What "file" can actually mean

"Files with CPF and IRAS" hides three different products, and a vendor's marketing page rarely says which one you are looking at.

The first is computation only. The software calculates CPF, SDL and IR8A figures correctly, on the same Ordinary Wage and Additional Wage rules CPF Board applies, but stops there. You still key or upload the result yourself, much as [submitting CPF through CPF EZPay directly](/insights/how-to-submit-cpf-contributions-singapore) would, just with less arithmetic to get wrong.

The second is file generation. The software produces a file in the format CPF EZPay or myTax Portal expects, a CPF contribution file, a bank GIRO file, an IR8A record, ready to upload. Someone on your team still logs in and submits it; the software has removed the building of the file, not the act of filing it.

The third is direct submission. The software is integrated with a government system, usually through the [One-Stop Payroll](https://www.onestoppayroll.gov.sg/about/about-osp/) initiative or IRAS's own AIS direct-API channel, and the numbers reach CPF Board or IRAS without anyone downloading and re-uploading anything.

A concrete version of why this matters: a bonus month lands, the software computes the correct CPF figure down to the cent, generates a file, and stops. If nobody logs into CPF EZPay before the last day of the month, the number was right and the filing still did not happen. That gap is invisible in a sales demo, because a demo never simulates the week your usual payroll person is on leave.

All three tiers are honestly described as software that "handles" CPF and IR8A. Only the third actually files for you. Ask a vendor directly which of the three you are buying; the answer changes what your own team still has to do every month, and how much of that disappears if the person who currently does it is unavailable.

## One-Stop Payroll: what it genuinely lets software submit

One-Stop Payroll is the answer to "is there a real government channel for this," and it is worth understanding precisely, because most comparisons either ignore it or oversell it.

It is a joint effort by IRAS, the CPF Board, MOM and GovTech, whose microsite soft-launched in August 2024. OSP-ready payroll software can submit three things from a single platform, via API, rather than three separate logins: annual salary data to IRAS under the Auto-Inclusion Scheme, monthly CPF contribution information to CPF Board, and responses to MOM's Occupational Employment Dataset and labour market surveys.

That is a genuinely useful reduction in logins for the three things it covers, and the annual AIS submission itself is worth reading [our AIS enrolment article](/insights/auto-inclusion-scheme-ais-singapore-employers) for if you have not filed one before. It is not a general payroll portal. Based on IRAS's and OSP's own descriptions, it does not extend to IR21 tax clearance for a departing foreign employee, the Skills Development Levy, itemised payslip issuance, or bank disbursement of salaries; none of those are named among what it submits. A vendor whose product is genuinely OSP-ready has covered a real, checkable piece of ground, not the whole compliance surface.

You reach One-Stop Payroll through your payroll software, not through a portal you log into directly, in the same way CPF EZPay and the AIS direct-API channel sit alongside it as recognised submission routes on IRAS's own AIS pages. A vendor listing of OSP-ready products exists on the OSP website itself. Read it for what it is: a listing is evidence of integration, not an endorsement of quality.

## What even capable software still leaves you to check

Buying genuinely OSP-ready, AIS-compliant software answers the arithmetic and, for CPF and AIS specifically, the submission question. It does not automatically answer the rest.

Our own check of Singapore HR and payroll software covered eight platforms against their own public documentation and found real, named gaps that varied product to product: one does not support the Appendix 8A or 8B forms for benefits-in-kind and stock options, which still have to go through myTax Portal by hand; another's bank file works only for GIRO, not FAST; a third generates a bank file at all, but disbursement itself still means uploading that file to the bank's own portal rather than the software paying anyone directly.

None of that makes the products bad. It makes "payroll software" a wider category than the marketing suggests, closer to a set of ingredients that varies by product than a single guaranteed feature set. Skills Development Levy shows the same pattern in miniature: CPF EZPay, and most software built on the same logic, auto-computes SDL for Singapore Citizens and Permanent Residents, but SDL for a foreign employee is commonly a manual entry, because SDL, unlike CPF, is payable for every employee working in Singapore, foreign staff included.

Nor does capable software close the Additional Wage ceiling gap on its own. CPF's own guide is explicit about CPF EZPay's auto-computation: "It does not impose a cap on CPF contributions that exceed the additional wage ceiling." Software built on the same computation logic inherits the same blind spot unless a vendor has specifically built a check for it, which is exactly the kind of thing worth asking about rather than assuming.

## The buyer's checklist before you sign

Ask these before a contract, not after, and get the vendor to answer in specifics, not marketing language:

- Does it submit directly to CPF Board and IRAS through an API, generate a file you still upload, or only calculate the figures? Get the vendor to name which.
- Is it genuinely OSP-ready, or on IRAS's own list of AIS-compliant software, rather than simply "compatible" as a marketing claim?
- Does it auto-compute Skills Development Levy for foreign employees, or only for Citizens and Permanent Residents?
- Does it cap CPF contributions at the Additional Wage ceiling, or, like CPF EZPay's own auto-computation, leave that unchecked in a bonus month?
- Who holds the Corppass access the software needs to operate, the vendor or your own team, and can you see and control it directly?
- Does the bank file it produces match your actual bank's format, GIRO or FAST, or does disbursement still mean a manual upload?
- Does it handle IR21 tax clearance for a departing foreign employee, or does that sit outside the product entirely? Our [IR8A employer guide](/compliance/ir8a-employer-guide) sets out what the annual form itself actually requires, separately from IR21.
- Does it support Appendix 8A and 8B for benefits-in-kind and stock options, or will those still need filing separately through myTax Portal?

That last group of questions matters beyond the immediate purchase. A vendor holding your Corppass access, rather than your own team, is a real operational dependency, not just a convenience; know which one you are agreeing to, and how you would move off the software if you ever needed to.

None of this makes software the wrong choice, or the whole answer. It answers the computation question well, and for CPF and AIS specifically, a genuinely OSP-ready product can answer the submission question too. What it cannot do is take the liability off your CPF Submission Number, or guess which of the questions above matter for your particular mix of local and foreign staff. Ask the vendor directly, get a direct answer, and check it against what you actually need filed. If the gaps turn out to matter more than the fee saved, [payroll processing](/services/payroll) is the alternative worth pricing against them.

## Frequently asked questions

### Does payroll software actually submit to CPF Board and IRAS, or does it just calculate?

Both exist under the same marketing language. Some software submits directly through a government API. Most computes the correct figures and generates a file, a CPF record, a bank upload, an IR8A return, that you or someone on your team still has to submit. Ask the vendor directly which one you are buying.

### What is One-Stop Payroll, and does it mean my software files automatically?

One-Stop Payroll is a joint IRAS, CPF Board, MOM and GovTech initiative that lets OSP-ready software submit annual AIS data, monthly CPF contributions and MOM's employment dataset from one platform. It does not name IR21, SDL or bank disbursement among what it covers, so "OSP-ready" answers three filings, not every filing.

### Who is legally responsible if my payroll software gets a CPF or IR8A filing wrong?

You are. The Income Tax Act's return duty falls on "every employer", and the CPF Act's definition of employer is written to also catch whoever pays wages on the employer's behalf, not to remove the employer from the picture. A vendor changes who does the computing, not who answers for the result.

### Does payroll software handle IR21 tax clearance for a departing foreign employee?

Not automatically, and not through One-Stop Payroll, which does not name IR21 among what it covers. Check this specifically with a vendor rather than assuming it is bundled in with CPF and AIS support.

### What should I ask a vendor before buying software for CPF and IR8A filing?

Whether it submits directly or only generates a file, whether it is genuinely OSP-ready or AIS-compliant rather than just "compatible", whether it caps contributions at the Additional Wage ceiling, and who holds the Corppass access it needs.

## Sources

- [Income Tax Act 1947, section 68 (returns by employer)](https://sso.agc.gov.sg/Act/ITA1947?ProvIds=pr68-) (Current version as at 05 August 2026)
- [Income Tax Act 1947, section 94 (general penalties)](https://sso.agc.gov.sg/Act/ITA1947?ProvIds=pr94-) (Current version as at 05 August 2026)
- [Income Tax Act 1947, section 95 (penalty for incorrect return)](https://sso.agc.gov.sg/Act/ITA1947?ProvIds=pr95-) (Current version as at 05 August 2026)
- [Central Provident Fund Act 1953, section 2 (definition of employer)](https://sso.agc.gov.sg/Act/CPFA1953?ProvIds=pr2-) (Current version as at 05 August 2026)
- [One Stop Payroll: About OSP](https://www.onestoppayroll.gov.sg/about/about-osp/) (Accessed 05 August 2026)
- [One Stop Payroll: FAQ (launch timeline)](https://www.onestoppayroll.gov.sg/faq/) (Page last updated 24 July 2026; accessed 05 August 2026)
- [IRAS: Submit employment income records](https://www.iras.gov.sg/taxes/individual-income-tax/employers/auto-inclusion-scheme-(ais)-for-employment-income/submit-employment-income-records) (Accessed 05 August 2026)
- [CPF Board: Skills Development Levy](https://www.cpf.gov.sg/employer/employer-obligations/skills-development-levy) (Accessed 05 August 2026)
- [CPF Board: CPF EZPay detailed user guide (PDF)](https://www.cpf.gov.sg/content/dam/web/employer/making-cpf-contributions/documents/CPFEZPayDetailedUserGuide.pdf) (Last updated October 2024; accessed 04 August 2026)

## Related

- [Singapore payroll compliance calendar](https://skillsforce.com.sg/insights/singapore-employer-payroll-compliance-calendar)
- [Payroll bureau vs software](https://skillsforce.com.sg/insights/managed-payroll-bureau-vs-software-singapore)
- [In-house, software or outsourced](https://skillsforce.com.sg/insights/payroll-in-house-software-or-outsourced-singapore)
- [IR8A: the employer's guide](https://skillsforce.com.sg/compliance/ir8a-employer-guide)
- [Payroll processing](https://skillsforce.com.sg/services/payroll)