How to Do a GST Return in India and New Zealand: Step-by-Step
Filing a GST return can feel like a puzzle, especially when the rules change depending on which country you’re in. While the core idea—report your sales, claim credit on purchases—is universal, the actual process looks completely different in India than it does in New Zealand. This guide cuts through the confusion with a side-by-side comparison, walking through the exact steps for both the GSTN portal and myIR, backed by the latest official guidelines.
NZ GST rate: 15% · New Zealand Inland Revenue ·
NZ registration threshold: NZD 60,000 · Business.govt.nz ·
India GSTR-3B frequency: Monthly (quarterly optional) · myBillBook ·
NZ standard filing period: 2-monthly · IRD
Quick snapshot
- NZ GST rate is 15% (New Zealand Inland Revenue)
- NZ registration threshold is NZD 60,000 (Business.govt.nz)
- India uses GSTR-1 and GSTR-3B for filing (GSTN)
- Exact refund processing times vary by jurisdiction
- Full impact of future digital filing mandates
- Portal interface changes can shift the exact click-path after GSTN/myIR updates
- India monthly GSTR-3B due: 20th of following month (myBillBook)
- NZ return and payment due: 28th of month after period (IRD)
- Digitalization of portals expected to reduce manual errors
- Businesses need to reconcile data earlier to meet strict deadlines
Two countries, two sets of rules, one fundamental process. Here are the key specifications for each system.
| Specification | New Zealand | India |
|---|---|---|
| Standard Rate | 15% (New Zealand Inland Revenue) | 18% (most goods) |
| Registration Threshold | NZD 60,000 (Business.govt.nz) | INR 40 Lakhs |
| Filing Frequency | Monthly, 2-monthly, 6-monthly (Business.govt.nz) | Monthly / Quarterly (QRMP) |
| Primary Return Forms | Single GST Return | GSTR-1, GSTR-3B (myBillBook) |
| Due Date (Standard Period) | 28th of month after period (IRD) | 11th (GSTR-1), 20th (GSTR-3B) |
| Filing Portal | myIR | GSTN Portal |
| Payment Due Date | Same as return (IRD) | With return |
| Refund Trigger | Input tax > Output tax (IRD) | Input tax > Output tax |
How to file a GST return online?
Filing GST returns in India on the GSTN portal
- Log in to the GSTN portal with your credentials.
- Select the return period (monthly or quarterly).
- File GSTR-1 for outward supplies by the 11th (monthly) or 13th (quarterly) (myBillBook).
- File GSTR-3B, the summary return, by the 20th (monthly) or 24th (quarterly) (myBillBook).
- Pay any tax due and submit the return.
For a dedicated walkthrough of the GSTR-1 and GSTR-3B process, check out Kiwijournal’s step-by-step guide to GSTR-1 and GSTR-3B.
Filing GST returns in New Zealand via myIR
- Log in to myIR or use compatible accounting software (IRD).
- Select the taxable period (monthly, two-monthly, or six-monthly) (Business.govt.nz).
- Enter total sales and income, total spending, and the GST charged to customers (Business.govt.nz).
- Review the calculated GST and confirm your refund or payment status.
- Submit the return.
For a detailed breakdown of costs and penalties in New Zealand, see Kiwijournal’s NZ GST return guide.
The implication is clear: NZ filers save time with a single form, but Indian filers gain audit granularity.
New Zealand’s single-return model significantly reduces filing overhead, but India’s dual-return system provides a detailed, documented trail of every transaction. Choose based on what matters more: speed or granularity.
The pattern: simpler filing tends to mean less built-in audit detail, while granular reporting creates more reconciliation work.
How does a GST return work?
What information is reported in a GST return
- Output tax: GST collected on sales and income.
- Input tax: GST paid on purchases and expenses.
- Net GST: Output tax minus input tax (IRD).
How GST credits and output tax offset
- Output tax: GST collected on sales.
- Input tax: GST paid on purchases.
- Net payable: Output tax minus input tax credits (IRD).
In India, this reconciliation happens between GSTR-1 and GSTR-3B. The figures in the summary return must match the detailed outward supply reports (myBillBook).
The pattern is consistent across both systems: accurate record-keeping of both sales and purchases is the only way to ensure a correct GST return.
What is GSTR-3B with an example?
Components of GSTR-3B
- Outward supplies: Details of all sales made.
- Inward supplies: Details of purchases.
- Input Tax Credit (ITC): Credit claimed on purchases.
- Net tax payable: The final amount due or refundable.
Example calculation using GSTR-3B
- Output tax: Rs 1,00,000 × 18% = Rs 18,000
- Input tax credit: Rs 50,000 × 18% = Rs 9,000
- Net GST payable: Rs 18,000 − Rs 9,000 = Rs 9,000
What this means for Indian taxpayers is that GSTR-3B is the final checkpoint—the numbers here must match your GSTR-1 and your purchase ledger perfectly.
How is GST calculated?
GST calculation formula
- Formula: GST Amount = (Original Price × GST Rate) / 100
- Total price: Original Price + GST Amount
Examples for different tax rates
- New Zealand (15%): For a NZ$100 service, GST = ($100 × 15) / 100 = $15. Total = $115 (IRD).
- India (18%): For a product worth Rs. 1,000, GST = (Rs 1,000 × 18) / 100 = Rs 180. Total = Rs 1,180.
The trade-off is mathematical simplicity for regulatory complexity—knowing the formula is the easy part. Ensuring you apply the correct rate is the real challenge.
A missed deadline in either system triggers automatic penalties—28th in NZ, 20th for GSTR-3B in India. No warnings, no grace periods.
The takeaway: set the deadline in your calendar now; late filing is the most avoidable GST cost.
How do I get my GST refund?
GST refund process in India
- Refund trigger: Input tax credit exceeds output tax.
- Application: Submitted through the GST portal’s refund module.
GST refund process in New Zealand
- How it works: Claim the refund directly within the GST return.
- Required details: IRD number, bank account, period, and amount (IRD).
Why this matters: Cash flow for businesses often depends on timely refunds. NZ’s streamlined refund process within the return form contrasts with India’s separate application workflow.
The digitalization of both portals continues, but manual data reconciliation remains the leading cause of filing errors in both countries.
Confirmed facts
- NZ GST rate is 15% (New Zealand Inland Revenue)
- NZ threshold is NZD 60,000 (Business.govt.nz)
- India uses GSTR-1 and GSTR-3B (GSTN / myBillBook)
What’s unclear
- Exact refund processing times vary by jurisdiction
- Full impact of future digital filing mandates
- Portal interface changes can shift the exact click-path after GSTN/myIR updates
What this means: before claiming a refund, confirm which portal workflow applies to your filing profile.
Filing your GST return in New Zealand is straightforward once you know your taxable period.
You don’t need a chartered accountant to file your GST return in India. The portal is designed for businesses to manage their own compliance.
GST applies to most goods and services in New Zealand, including imports.
— New Zealand Inland Revenue
For any business operating in these markets, the choice isn’t between the two systems—it’s about mastering the one you’re in. The consequence of non-compliance is clear: penalties, interest, and audits. The trade-off is between NZ’s efficiency and India’s granularity. For small businesses, the simplicity of the myIR system is a clear advantage. For large enterprises, the detailed record-keeping required by the Indian model offers better audit trails. The bottom line: know your deadlines, reconcile your data, and file on time.
ird.govt.nz, ird.govt.nz, ird.govt.nz, taxtechnical.ird.govt.nz
Frequently asked questions
What documents are needed to file a GST return?
In India, you need your GSTIN, sales and purchase invoices. In New Zealand, you need your IRD number, total sales and spending records.
Can I file a GST return without a tax professional?
Yes. Both the GSTN portal and myIR are designed for independent filing, though complex cases may benefit from professional advice.
What happens if I miss the GST return deadline?
In India, late fees are INR 50 per day. In New Zealand, an initial 1% penalty applies, followed by 2% per month.
Is GST the same as VAT?
GST is a form of VAT, but GST is a single comprehensive tax, whereas VAT often had multiple tiers and state variations.
Do I need to file a GST return if I have zero sales?
Yes, a nil return is mandatory in both countries to keep the filing history current.
How often do I need to file GST returns?
In New Zealand, typically monthly or two-monthly. In India, regular taxpayers file monthly, small taxpayers quarterly under QRMP.
What is the difference between GSTR-1 and GSTR-3B?
GSTR-1 reports outward supplies; GSTR-3B is the monthly summary of outward and inward supplies and tax payment.
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