Sole prop or Pte Ltd for CRS? What BCA allows, and when you’ll need a company
Plenty of contractors start as a sole proprietorship. It’s quick and cheap, and it works. Then CRS comes up, because a main contractor asks for it or there’s a tender you want, and the question is whether the sole prop is enough. Short answer: for the first step, often yes. For the second step, no. Here’s where the line sits, and how to cross it without losing ground.
In this article
Can a sole prop register for CRS at all?
Yes. BCA’s Terms of Registration accept sole proprietorships, partnerships, limited liability partnerships, limited partnerships and companies, as long as the business is registered with ACRA when you apply. What BCA won’t register is an individual. The business has to exist on BizFile first.
So on day one, the sole prop isn’t the problem. It becomes the problem when you want to grow.
The ceiling: entry grades only
Every CRS workhead has a grade ladder, and your grade sets how big a public project you can tender for. BCA’s terms are clear about where non-companies stop: sole proprietorships, partnerships and limited partnerships are registered or renewed only at the entry grades. That means C3 on the building workheads, L1 on most specialist ones, M4 where that applies, or the single grade on workheads that have only one. Any grade above that has to be held by a company, duly incorporated.
In practice, a sole prop can get onto the register but can’t climb. When a main contractor or a tender needs you one grade higher, a better application won’t fix it. You need a different kind of business.
Builder licensing is a separate regime from CRS, and it follows the same pattern: on the general builder side, sole proprietors and partnerships can only hold the Class 2 licence (GB2). If you see yourself taking on bigger building work, both roads lead to a Pte Ltd.
The part BCA doesn’t ask about: liability
Grades are BCA’s line. Liability is yours. In law, a sole prop and its owner are the same person. Every contract, every defects claim, every unpaid supplier and every dispute with a main contractor lands on you personally: your savings, your property. Construction is where that matters most. Contracts are large, payment chains are long, and one bad project can outlast the business.
A Pte Ltd is a separate legal person. It isn’t a magic shield. Banks and some suppliers will still ask directors for personal guarantees, and directors can still be personally liable for wrongdoing. But the ordinary risk of trading sits with the company, not with your household.
When a sole prop is fine, and when it isn’t
A sole prop is usually fine if you’re a small trade outfit doing private jobs or subcontract work, the entry grade covers what you’re being asked for, and you’re still finding out whether the work will be steady.
It’s time for a Pte Ltd when any of these is true:
- A main contractor or a tender needs a grade above the entry grade, or you can see that coming within a year or two.
- Your contracts have grown to the size where one dispute could hurt you personally.
- You want a partner or investor to come in with shares rather than a handshake.
- Your profits are high enough that the company tax position deserves a proper look. Have that conversation with someone who has seen your numbers; it’s not a rule of thumb.
If you’re honestly in the first group, don’t let anyone sell you a company you don’t need yet. If you’re in the second, switch early: the sooner you do, the more track record the company builds in its own name.
Switching to a Pte Ltd without losing ground
This is where people get caught. A new company is a new legal entity with a new UEN. It does not automatically inherit the sole prop’s CRS registration, workheads, grade or expiry date. BCA treats changes like this as separate applications (it has a transfer of registration status process, among others) and decides each one on its facts. What the company can carry over depends on BCA’s assessment, not on what feels fair.
So the order matters:
- Incorporate first, and set the company up for the grade you’re aiming at. That means the right SSIC, paid-up capital that matches the target grade, and the directors and shareholders sorted from the start.
- Keep the sole prop’s registration alive until the company’s registration is in place. If one lapses before the other is approved, there’s a gap in your CRS status.
- Move contracts, staff and qualified personnel deliberately. The projects and people BCA counts towards a registration need to sit with the entity that’s applying, and a qualified person can only be counted for one firm at a time.
- Tell BCA about changes in writing, with the updated ACRA business profile, instead of hoping they notice.
Get the sequence right and the switch is just paperwork. Get it wrong and you can lose months of standing.
Three questions to decide
1. What grade will you need in two years, not today? If it’s above the entry grade, you’re building towards a company either way.
2. What happens to you personally if your biggest contract goes wrong? If the honest answer scares you, the business has already outgrown a sole prop.
3. Who else will own part of this? Partners and investors need shares, and shares need a company.
Still not sure? Our four-question CRS check takes a minute on your phone and sends your answers straight to us.
Where we come in
For this decision, the CRS work and the company work are the same job. We incorporate a Pte Ltd that’s set up for the grade you’re aiming at. We act as its corporate secretary, so the paid-up capital, share changes and ACRA filings that BCA looks at stay clean. And we run the CRS application alongside, so your registration doesn’t fall into a gap. See our CRS & BCA licensing, incorporation and corporate secretary services.
Common questions
Can a sole proprietorship register for BCA CRS?
Yes. BCA accepts sole proprietorships, partnerships, LLPs, limited partnerships and companies that are registered with ACRA. It does not register individuals.
What CRS grade can a sole proprietor get?
Only the entry grades: C3, L1, M4, or the single grade on workheads that have only one. Any grade above that has to be held by a company.
Does my CRS registration transfer when I convert my sole prop to a Pte Ltd?
Not automatically. The company is a new entity with a new UEN. BCA handles changes like this through separate applications, including transfer of registration status, and assesses each case. Keep the old registration alive until the new one is in place.
When should a contractor switch from sole prop to Pte Ltd?
When you need a grade above the entry grade, when your contracts are large enough that one dispute could hurt you personally, or when a partner or investor needs to come in with shares.
Is a Pte Ltd more work to run than a sole prop?
Yes. A company needs a corporate secretary, an AGM or written resolutions, an annual return and its own tax filing. For a contractor who needs the higher grade, that work is what buys the right to tender for the bigger jobs.
Sole prop now, bigger jobs coming?
Tell us your workhead, the grade you’re being asked for and how your business is set up today. We’ll tell you honestly whether you need a company yet, and if you do, the order to do it in.
This article is general information about BCA’s Contractors Registration System and business structures in Singapore, based on BCA’s published terms as at Oct 2026. BCA can update its terms at any time, so check the current version before you apply. Not legal or tax advice. Morphrix Pte. Ltd. (formerly AG Solutions).