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GST

Registration thresholds, voluntary registration, and the goods and services tax obligations of a growing Singapore business.

3 guides

GST

The GST F5 return: what each box wants, and where errors hide

Nine boxes, one month after each quarter, and a handful of mistakes that account for most IRAS assessments. A working guide to filing the F5 correctly.

2 Aug 2026 · 7 min read

GST

GST registration: the S$1 million tests, and when to volunteer

Two ways to cross the threshold — looking back and looking forward — and a three-question framework for whether voluntary registration is worth it.

2 Aug 2026 · 8 min read

GST

The GST InvoiceNow requirement, explained

E-invoicing over Peppol is becoming part of GST registration — new voluntary registrants from April 2026, everyone by April 2031. What it is and how to get ready.

2 Aug 2026 · 7 min read