A side hustle in Singapore stays licence-free only up to a published limit, as checked on 5 November 2026. Home baking stops at catering, home cleaning stops at offices, and tutoring needs MOE registration once a centre teaches 10 or more students. GST registration starts at S$1 million of taxable turnover, counted across all of a sole proprietor's businesses. This guide maps six side hustles to the limit where the rules change.
Accurate as of 5 November 2026. Every figure, date and rule on this page was checked against its source on that date, and the page is rechecked monthly.
Six side hustles change legal status at limits the regulators publish
Each side hustle below has one published limit, and crossing it brings a named licence or registration. The table reads the limit from the regulator's own page on 5 November 2026. It states no earnings, because none were verified.
| Side hustle | Stays within the rules while | Limit that changes the rules | What the limit triggers | Regulator |
|---|---|---|---|---|
| Home baking | Selling food made at home to consumers, directly or through delivery platforms | Catering, sales to licensed food retailers or temporary fairs, ready-to-eat raw seafood | A licensed route such as an SFA Food Shop Licence at S$195 a year | SFA |
| Tutoring | Teaching outside a tuition centre | A centre that teaches 10 or more persons | Registration of the centre, its courses and its teachers | MOE |
| Cleaning homes | Domestic cleaning at premises occupied as a private residence | Offices, other non-domestic premises, condominium common property | NEA Cleaning Business Licence, Class 3 at S$180 for 2 years | NEA |
| Pet care | The AVS pages read do not define a limit for pet sitting | Keeping pets for sale, or running a boarding facility | Pet shop licence at S$94.50 plus S$126.00, or boarding licence at S$100 a year | AVS (NParks) |
| Event hosting | The event adds no music or performance for the public, and sporting events by themselves need no licence | Recorded music through speakers in public areas, performances | Public Entertainment Licence at S$22 a day or S$44 for 7 days (ad hoc) | SPF |
| Online selling | Taxable turnover stays at or under S$1 million per calendar year | Turnover above S$1 million, or expected above S$1 million in the next 12 months | GST registration | ACRA and IRAS pages |
The table pairs each side hustle with the published limit and fee, as of 5 November 2026.
Is a side hustle from an HDB flat allowed?
HDB and URA allow anyone to run a small-scale business from a flat or private home without their approval, provided the scheme's requirements are met. SFA describes the HDB/URA Home-based Business Scheme in these terms, and states that it covers food businesses.
SFA's guidance relays one HDB and URA rule for food sellers. They are not allowed to display advertisements, signages or posters at their residential premises. SFA does not restrict selling through delivery platforms or promoting online. The scheme's other requirements sit on HDB and URA pages, which this guide does not summarise.
Does tutoring on the side need MOE registration?
Freelance tutors teaching outside centres fall outside MOE's centre registration rules, as stated in MOE's reply of 6 July 2021. The rules apply to centres that teach 10 or more students, which meet infrastructure and fire safety requirements and keep a school management committee.
Tutors at those centres register with MOE and declare any conviction for an offence punishable with imprisonment. MOE's registration page states that a school offering education to 10 or more persons registers the school, its courses and its permitted teachers.
Does a pet-sitting side hustle need an AVS licence?
The AVS pages read describe licences for pet shops and boarding facilities, and they do not say whether pet sitting at a client's home needs one. The boarding page covers a licence to operate a pet boarding facility, with an annual fee of S$100 and a rule that no animals are boarded before approval.
Ask AVS directly before you board animals at your own address. Both AVS applications require a premises inspection, and AVS states that no animals are boarded before final approval.
Do I need to register my side hustle with ACRA?
The ACRA pages read give the fees and steps for registering, and they do not state when registration becomes compulsory. A sole proprietorship costs S$15 for the name and S$100 for a one-year registration, and renewal costs S$30 a year.
Two licences in this guide name ACRA records as a prerequisite. NEA lists registration with ACRA or ROS for every cleaning licence class, and AVS asks for an ACRA certificate or company bio-data printout. ACRA states that running a business after the registration expires is an offence. The How to Register a Business in Singapore guide covers the registration steps.
A side hustle reaches the GST line at an average of S$83,333 of taxable turnover a month
GST registration starts at S$1 million of taxable turnover, which is S$83,333 a month on average, and ACRA counts all of a sole proprietor's businesses together. ACRA states two tests, a turnover above S$1 million per calendar year and an expectation of more than S$1 million in the next 12 months.
| Period | Divisor | Turnover that reaches S$1,000,000 | Arithmetic |
|---|---|---|---|
| Year | 1 | S$1,000,000.00 | S$1,000,000 / 1 |
| Month | 12 | S$83,333.33 | S$1,000,000 / 12 |
| Week | 52 | S$19,230.77 | S$1,000,000 / 52 |
| Day | 365 | S$2,739.73 | S$1,000,000 / 365 |
The table divides the S$1 million GST threshold stated by ACRA on 5 November 2026 into average turnover per period.
How does ACRA count turnover for a sole proprietor?
ACRA counts turnover across every sole proprietorship you own, so several small side hustles add up. ACRA's wording is that taxable turnover "covers all your sole proprietorship businesses and income from trade, work and other jobs".
A person who runs a baking hustle, a tutoring hustle and an online shop as one sole proprietor adds the taxable turnover of all three before comparing the total with S$1 million.
When does GST registration start once turnover passes S$1 million?
Registration starts on the first day of the third month after the year in which turnover passed S$1 million, which is 1 March 2027 for a 2026 breach. IRAS's GST F1 form states that liability under the past-turnover test arises at the end of the calendar year on 31 December. It states that registration falls on the first day of the third month from the end of that period.
Counting January as the first month after 31 December 2026, the third month is March, so registration falls on 1 March 2027. Under the forecast test, the form states that registration starts on the 31st day from the date of the forecast, and IRAS processes an application within 10 working days.
Four licences name who applies and what the applicant holds first
Each licence names its applicant and a prerequisite, and two of them accept a sole proprietor. The prerequisites below come from the same regulator pages as the limits above.
| Licence | Who applies | Held or completed first | Premises step |
|---|---|---|---|
| NEA Cleaning Business Licence | Any cleaning business, including a sole proprietorship, registered with ACRA or ROS | An employee with 2 years' supervision experience or specified WSQ or TSC training, cleaner training of at least 2 modules, a progressive wage plan | None stated |
| AVS Licence for Pet Shop | A sole proprietor, partner or director of the applying business | Pet welfare training, URA written permission, ACRA certificate or bio-data printout | AVS inspection |
| AVS pet boarding licence | The applicant for a boarding facility | Pet welfare training, URA written permission, ACRA certificate or bio-data printout | AVS inspection |
| MOE centre registration | A centre teaching 10 or more persons | Infrastructure and fire safety requirements, a school management committee, registered tutors | Certificate displayed on premises |
The table lists applicant and prerequisite for each licence as published on 5 November 2026; the SPF licence is omitted because its applicant criteria were not read.
This guide checks licences and fees and leaves earnings, platform terms and tax filing to their own sources
This guide does not cover earnings per hustle, platform fees, income tax filing steps or the rules on a second job in your employment contract. No primary source for those topics was read on 5 November 2026, and a figure without a source stays out.
Read your employment contract before you start a second source of income. IRAS publishes a page titled I have other side or personal income for reporting side income. ACRA states that profits of a sole proprietorship are taxed at the owner's personal income tax rates. The How to Start a Business in Singapore guide covers the step from side hustle to registered business.
General guidance as of 5 November 2026, not legal advice.