GST Registration & Filing Services in Singapore
GST Sorted
Harvest Accounting provides GST services in Singapore for SMEs, starting from S$375 a month. We handle GST registration, both compulsory and voluntary, prepare and file your quarterly F5 returns with IRAS on time, and set up InvoiceNow e-invoicing so you stay compliant as the rollout continues.
GST registration is compulsory once your taxable turnover passes S$1 million over 12 months, or when you expect it to. We tell you when you need to register, file every return ahead of the deadline, and keep the same dedicated team on your account year after year.
GST services
built for your
situation
- You've crossed, or are about to cross, the S$1 million taxable turnover threshold and need to register before the deadline.
- You want to register for GST voluntarily to claim input tax, and need it done correctly.
- You're already GST-registered and want quarterly F5 returns filed accurately and on time, every time.
- You need InvoiceNow e-invoicing set up and want it handled alongside your accounting, not as a separate project.
What's included
Everything your company needs to stay GST-compliant with IRAS, handled for you:
- GST registration with IRAS, both compulsory and voluntary
- Quarterly GST F5 return preparation and filing
- InvoiceNow and e-invoicing setup and ongoing compliance
- GST advice on transactions, so you charge and claim the right amounts
- Monitoring of your taxable turnover against the S$1 million registration threshold
- GST deregistration when your business no longer needs to be registered
- Filing reminders before every quarterly deadline, so nothing is ever late
One fixed monthly fee.
No surprises.
Harvest's packages start from S$300 a month. We add GST services to that monthly fee and confirm your exact figure after a free consultation, based on your transaction volume and filing frequency.
You pay one predictable amount covering your accounting, tax, and GST together. No per-filing charges. No hourly billing. No unexpected invoices.
What our clients say
Founders tell us the relief is in handing the admin off entirely.
"You need to hire people that are mountains where your valleys are. Things like filings, taxes and accounting, that's definitely my valley, and they are a mountain there. So much man hours just saved."
— Jason Ho, Business Owner & Principal Coach, Strengths School
Frequently
Asked
Questions
The GST rate in Singapore is 9%, in effect since 1 January 2024. GST-registered businesses charge 9% on most goods and services and file the amount collected, less the GST they have paid, with IRAS each quarter. Harvest prepares and files those returns for you so the figures are right.
GST registration is compulsory once your taxable turnover exceeds S$1 million over a 12-month period, or when you reasonably expect it to. Below that threshold, registration is voluntary. We monitor your turnover against the threshold and tell you when you need to register, so you don't miss the deadline.
Yes. You can register voluntarily before reaching the S$1 million threshold, which lets you claim back the GST you pay on business expenses. Whether it makes sense depends on your customers and your costs. We review your situation at the consultation and handle the registration if it's the right move.
Yes. We prepare your GST F5 return from your accounting records and file it with IRAS before each quarterly deadline. You get a reminder only when we need something from you, and we keep the filing ahead of time so it is never late.
Yes, and we handle the handover. We take over your F5 filing from your current provider with no gaps, line it up with your accounting records, and file the next return on time. Most switches are done within a few weeks with nothing for you to chase.
You can deregister when your business is no longer required to be GST-registered, for example if your taxable turnover falls below the threshold or you stop trading. We assess whether deregistration applies to you, handle the application with IRAS, and complete your final return.

Let's keep your GST compliant.
Tell us about your business and we'll come back within one business day with a fixed monthly fee that covers your accounting, tax, and GST together. No obligation.





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