KyDec for Singapore · GST 9% · S$
KyDec issues GST tax invoices with every field IRAS asks for, posts each one to double-entry books the moment it is raised, and totals your quarterly GST for the F5 you file on myTax Portal — sales, purchases, stock, bank and CRM on one login.
| Description | Qty | Amount S$ |
|---|---|---|
| Cold-chain sensor kit | 12 | 2,220.00 |
| Installation & calibration | 1 | 1,450.00 |
| Monitoring plan, 12 months | 1 | 960.00 |
Total excl. GSTS$4,630.00
GST @ 9%S$416.70
Total payableS$5,046.70
✓ client found · UEN on file
✓ GST 9% · standard-rated
✓ required fields: 8/8
✓ stock reserved · WH-01
→ journal posted · JV-0912
→ Q3 output GST updated
✓ balanced · 0.00 diff
01 / Local rules
GST, IRAS, UEN, F5, InvoiceNow. Here is how Singapore's tax system reads — and exactly where KyDec sits in it.
Since 1 Jan 2024. 0% on exports and international services; exempt: most financial services, residential property, investment precious metals, digital payment tokens.
Quarterly F5 (monthly optional), due one month after the period ends, filed on myTax Portal. GST F7 corrects errors.
GST reg. no. — usually the entity's UEN; some hold an IRAS number like M2-1234567-8. Stored on every client and vendor.
Over S$1 million in a calendar year, or expected in the next 12 months. Voluntary registration allowed.
A foreign-currency invoice goes out at the day's rate; your books stay in SGD.
31 Dec and 31 Mar are common. Corporate tax 17%, assessed by Year of Assessment.
Tax invoice anatomy
Set your UEN and address once. The template, the numbering series and the GST maths take care of the rest.
| Description | Qty | Unit S$ | Amount S$ |
|---|---|---|---|
| Cold-chain sensor kit | 12 | 185.00 | 2,220.00 |
| Installation & calibration | 1 | 1,450.00 | 1,450.00 |
| Monitoring plan, 12 months | 1 | 960.00 | 960.00 |
Total excl. GSTS$4,630.00
GST rate 9% · GST amountS$416.70
Total payable incl. GSTS$5,046.70
FIG.02 — printed PDF, 1 of 11 templates · fictional business
01.B / InvoiceNow
Invoice data goes to IRAS through an InvoiceNow-Ready Solution on Peppol. Find your phase, then who does what.
> show phases --sort date
> f5 --cycle --example calendar-quarters
Standard-rated supplies412,380.00
Zero-rated supplies86,500.00
Exempt supplies0.00
Output tax @ 9%37,114.20
Taxable purchases238,900.00
Input tax claimed @ 9%21,501.00
Net GST payable (S$)15,613.20
02 / The idea, in one picture
A document in KyDec is not a form that gets copied into other systems later. Saving it is what updates your books, your stock and your tax data, at the same moment.
03 / Platform
Every document writes its own journal entry. Your accountant stops reconciling three systems and starts reading one.
sales01Quotation → proforma → order → tax invoice → credit note. Recurring invoices, reminders, 11 templates, printed in 26 scripts incl. 中文 and தமிழ்.
buy02Purchase orders, vendor bills, debit notes, expenses paid by staff. Multi-stage approvals with super-approvers, vendor onboarding and RFQs.
ledger03True double entry from the document that caused it. Chart of accounts, journals, day book, trial balance, P&L, balance sheet, cash flow.
bank04Import statements, accept suggested matches. FAST, GIRO and PayNow receipts land in the statement and get paired with their invoice.
stock05Multi-warehouse stock with batch, serial and expiry tracking, transfers, reorder and overstock alerts.
crm06Pipelines, lead capture forms, follow-ups and meeting scheduling — and a won deal becomes a quotation without retyping.
reports07Ageing, outstanding, tax summary, payments, line items, client retention, project P&L, tag-wise.
entities08Run several Pte. Ltd.s from one login, each with its own books. Roles and permissions decide who sees what.
payrollCOMING SOONNot live yet. Until then, book totals from your current payroll provider.
Multi-currency invoices use the exchange rate of the day.
INV-2026-00421USDSGD
Taxable value2,400.003,084.00
GST @ 9%216.00277.56
Total2,616.003,361.56
Rate 1 USD = S$1.2850 · illustrative only
04 / AI
Four jobs it does today — each one checkable.
| Client | Days overdue | Outstanding S$ |
|---|---|---|
| Tanjong Loop Studio Pte. Ltd. | 47 | 12,480.00 |
| Kim Seng Fabrication | 32 | 8,215.50 |
| Orchid Lane Florist | 19 | 5,640.00 |
| Total | 26,335.50 |
vendorKallang Paper Supply
lines3
subtotal1,280.00
GST 9%115.20
total S$1,395.20
GIRO SP SERVICESUtilities
FAST TANJONG LOOPReceivables
CARD GRAB* 4471Travel · sorted
Tanjong Loop~21 days late
Orchid Laneon time
Sensor kit · WH-01below reorder
Bracket · WH-02well stocked
05 / Trust & switching
From Excel, or exported from Tally or other software. We do the lifting.
06 / FAQ
Something else? info@techbizsolution.co.in — a person answers.
No, not today. KyDec issues tax invoices, credit and debit notes with every field IRAS requires and prepares your GST figures. If you fall in a live InvoiceNow phase, sending invoice data to IRAS needs an InvoiceNow-Ready Solution — ask us for current status first.
No — you or your accountant file on myTax Portal. KyDec totals the period's output tax and input tax straight from the posted books; you or your accountant work out the F5 from them. Not registered yet? Invoice without GST and watch the S$1 million threshold.
They can pay you by PayNow, FAST or GIRO as usual; those receipts are recorded and matched when you import your bank statement. The pay-online link on invoices takes cards through your own Stripe account. We don't integrate directly with PayNow or e-wallets.
Data is hosted in India, encrypted in transit, and exportable any time. Basic is free with no card. Paid plans are priced per region; Singapore pricing: local, talk to us.
Start on Basic — free, no card. Bring your data; we'll set up your formats and sit through your first month-end.