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openaccountants/skills/nz-gst-return.md

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nz-gst-return.md399 lines15.6 KB
v20New Zealand
Not yet verified by an accountantContact accountant
1---
2name: nz-gst-return
3description: >
4 Use this skill whenever asked about New Zealand GST returns for self-employed individuals. Trigger on phrases like "GST return", "GST101A", "GST rate NZ", "input tax", "output tax", "zero-rated", "GST registration", "taxable supply", "IRD GST", "myIR GST", or any question about GST filing for sole traders in New Zealand. Covers the 15% standard rate, zero-rated and exempt supplies, $60K registration threshold, invoice and payments basis, and GST101A return preparation. ALWAYS read this skill before touching any NZ GST work.
5version: 2.0
6jurisdiction: NZ
7tax_year: 2025
8category: international
9depends_on:
10 - vat-workflow-base
11---
12 
13# NZ GST Return -- Self-Employed Skill v2.0
14 
15---
16 
17## Section 1 -- Quick Reference
18 
19| Field | Value |
20|---|---|
21| Country | New Zealand |
22| Tax | Goods and Services Tax (GST) at 15% |
23| Currency | NZD only |
24| Tax year basis | Balance date (typically 31 March) |
25| Primary legislation | Goods and Services Tax Act 1985 (GSTA 1985) |
26| Tax authority | Inland Revenue (IR / Te Tari Taake) |
27| Filing portal | myIR (myir.ird.govt.nz) |
28| Filing deadline | 28th of month after period end |
29| Contributor | Open Accountants Community |
30| Validated by | Pending -- requires sign-off by a New Zealand chartered accountant (CA) |
31| Skill version | 2.0 |
32 
33### Rate Table
34 
35| Rate | Application |
36|---|---|
37| 15% | Standard rate on all taxable supplies |
38| 0% | Zero-rated supplies (exports, going concerns, certain foodstuffs, fine metals) |
39| Exempt | Financial services, residential rent, donated goods (certain conditions) |
40 
41### Tax Fraction
42 
43For GST-inclusive amounts at 15%: **3/23** (i.e. 15/115 = 3/23).
44 
45### Key Thresholds
46 
47| Item | Amount (NZD) |
48|---|---|
49| Mandatory GST registration | $60,000 taxable supplies in any 12-month period |
50| Voluntary registration | Any person making taxable supplies |
51| Payments basis eligibility | Taxable supplies < $2,000,000 |
52| Six-monthly filing eligibility | Taxable supplies < $500,000 |
53| Monthly filing required | Taxable supplies > $24,000,000 |
54| Tax invoice required | Supplies over $50 |
55 
56### Conservative Defaults
57 
58| Ambiguity | Default |
59|---|---|
60| GST registration status unknown | STOP -- do not compute |
61| Accounting basis unknown | Invoice basis (default) |
62| Supply classification unknown | Standard-rated at 15% |
63| Private use proportion unknown | 0% GST recovery |
64| Going concern status unknown | Not a going concern (charge GST) |
65 
66---
67 
68## Section 2 -- Required Inputs and Refusal Catalogue
69 
70### Required Inputs
71 
72**Minimum viable:** Bank statement for the GST period in CSV, PDF, or pasted text, plus confirmation of GST registration status and accounting basis.
73 
74**Recommended:** Sales invoices, purchase invoices for any input tax claim, GST registration number.
75 
76**Ideal:** Complete invoice register, prior period GST return, reconciliation of carried-forward amounts.
77 
78### Refusal Catalogue
79 
80**R-NZ-1 -- Not GST-registered.** "If turnover is below $60,000 and the client is not voluntarily registered, no GST filing is required. Stop."
81 
82**R-NZ-2 -- Companies and partnerships.** "This skill covers individual self-employed persons only. Company and partnership GST returns may have additional requirements."
83 
84**R-NZ-3 -- Financial services (complex).** "Complex financial services GST treatment requires specialist review. Escalate."
85 
86**R-NZ-4 -- Cross-border digital services (complex).** "Non-resident digital services GST has specific registration and collection rules. Escalate if amounts are material."
87 
88---
89 
90## Section 3 -- Transaction Pattern Library
91 
92### 3.1 Income Patterns (Credits)
93 
94| Pattern | Tax Line | Treatment | Notes |
95|---|---|---|---|
96| DIRECT CREDIT [client] / DC [client] | Taxable supply | GST-inclusive revenue | Standard client payment |
97| EFTPOS SETTLEMENT / EFTPOS CREDIT | Taxable supply | Revenue | Card terminal settlement |
98| INTERNET BANKING CREDIT [client] | Taxable supply | Revenue | Online bank transfer |
99| STRIPE NZ / STRIPE PAYOUT | Taxable supply | Revenue (net of fees) | Stripe payout -- gross up for fees |
100| SHOPIFY PAYOUT / SHOPIFY SETTLEMENT | Taxable supply | Revenue | E-commerce platform settlement |
101| XERO INVOICE PAYMENT | Taxable supply | Revenue | Xero-linked payment |
102| INTEREST / INT EARNED [bank] | Exempt | NOT taxable supply | Bank interest -- exempt financial service |
103| DIVIDEND [company] | Exempt | NOT taxable supply | Dividend |
104| IRD REFUND / TAX REFUND | EXCLUDE | Not income | Tax refund |
105| LOAN DRAWDOWN | EXCLUDE | Not income | Loan proceeds |
106 
107### 3.2 Expense Patterns (Debits)
108 
109| Pattern | Expense Category | Treatment | Notes |
110|---|---|---|---|
111| SPARK / VODAFONE / 2DEGREES | Communications | Business portion deductible | Mixed use: apportion |
112| VECTOR / MERCURY / GENESIS / CONTACT ENERGY | Utilities | Business portion deductible | Home office: apportion |
113| COUNTDOWN / PAK'N SAVE / NEW WORLD | NOT business | Private | Unless entertainment or business meeting |
114| BUNNINGS / MITRE 10 | Office supplies | Deductible if business | Keep receipts |
115| GOOGLE ADS / META / LINKEDIN | Advertising | Fully deductible | |
116| ADOBE / MICROSOFT / XERO / SLACK | Software | Fully deductible | Business subscription |
117| AIR NEW ZEALAND / JETSTAR | Travel | Deductible if business | Keep itinerary |
118| UBER NZ / TAXI | Travel | Deductible if business | Not commuting |
119| ACC LEVY | EXCLUDE | Government levy | Not GST |
120| IRD INCOME TAX / IRD PAYE | EXCLUDE | Tax payment | Not deductible |
121| BANK FEE / ANZ FEE / ASB FEE / BNZ FEE / WESTPAC FEE | Exempt | No GST on bank fees | Financial service exempt |
122| PERSONAL TRANSFER / OWN ACCOUNT | EXCLUDE | Drawings | Not business |
123 
124### 3.3 Zero-Rated Supply Indicators
125 
126| Pattern | Treatment | Notes |
127|---|---|---|
128| EXPORT / INTERNATIONAL FREIGHT | Zero-rated output | Goods exported from NZ |
129| GOING CONCERN SALE | Zero-rated output | Both parties must be GST-registered |
130| FINE METALS / GOLD BULLION | Zero-rated | Gold, silver, platinum of certain fineness |
131 
132---
133 
134## Section 4 -- Worked Examples
135 
136### Example 1 -- Standard Two-Monthly Return
137 
138**Input:** Period Jan-Feb. Total sales (incl. GST) $23,000. Total purchases (incl. GST) $8,050. All standard-rated. No adjustments.
139 
140**Reasoning:**
141Output tax: $23,000 x 3/23 = $3,000. Input tax: $8,050 x 3/23 = $1,050. Net GST payable: $3,000 - $1,050 = $1,950.
142 
143**Classification:** GST payable $1,950.
144 
145### Example 2 -- Exporter in Refund Position
146 
147**Input:** Total sales $50,000 (all zero-rated exports). Total purchases (incl. GST) $17,250.
148 
149**Reasoning:**
150Output tax: $0 (zero-rated). Input tax: $17,250 x 3/23 = $2,250. GST refund: $2,250.
151 
152**Classification:** GST refund $2,250.
153 
154### Example 3 -- Entertainment Expense
155 
156**Input:** Business dinner $460 (incl. GST).
157 
158**Reasoning:**
159GST content: $460 x 3/23 = $60. Entertainment 50% restriction applies. Claimable: 50% x $60 = $30. Non-claimable: $30.
160 
161**Classification:** Input tax claimable $30 only.
162 
163### Example 4 -- Private Use Apportionment
164 
165**Input:** Laptop purchased for $2,300 (incl. GST), used 70% business, 30% private.
166 
167**Reasoning:**
168GST content: $2,300 x 3/23 = $300. Claim 70%: $300 x 70% = $210.
169 
170**Classification:** Input tax $210. Flag for reviewer on apportionment basis.
171 
172---
173 
174## Section 5 -- Tier 1 Rules (When Data Is Clear)
175 
176### 5.1 GST101A Return Line-by-Line
177 
178| Box | Description | How to Populate |
179|---|---|---|
180| 5 | Total sales and income for the period | All income including GST-inclusive, zero-rated, and exempt |
181| 6 | Zero-rated supplies | Exports and other 0% supplies (included in Box 5) |
182| 7 | Total purchases and expenses | All purchases including GST-inclusive, zero-rated, and exempt |
183| 8 | GST on sales (output tax) | (Box 5 - Box 6 - exempt supplies) x 3/23 |
184| 9 | GST on purchases (input tax) | (Box 7 - exempt purchases - private) x 3/23 |
185| 10 | Adjustments -- increase | Prior period corrections increasing GST payable |
186| 11 | Adjustments -- decrease | Prior period corrections decreasing GST payable |
187| 12 | GST to pay or refund | Box 8 + Box 10 - Box 9 - Box 11 |
188 
189### 5.2 Accounting Basis (s 19, 19A)
190 
191| Basis | Rule | Eligibility |
192|---|---|---|
193| Invoice basis | Account for GST when invoice is issued or received | Default for all |
194| Payments basis | Account for GST when payment is made or received | Taxable supplies < $2M |
195| Hybrid basis | Invoice for sales, payments for purchases (or vice versa) | By application to IR |
196 
197### 5.3 Filing Frequency and Deadlines (s 15, 16)
198 
199| Frequency | Eligibility | Deadline |
200|---|---|---|
201| Six-monthly | Taxable supplies < $500,000 | 28th of month after period end |
202| Two-monthly | Default for most businesses | 28th of month after period end |
203| Monthly | Taxable supplies > $24M or by election | 28th of month after period end |
204 
205### 5.4 Input Tax Rules (s 20, 21)
206 
207Claimable if: supply made by GST-registered person, valid tax invoice held (for supplies over $50), goods/services used in the taxable activity.
208 
209Not claimable: private or exempt use, entertainment (50% restriction), motor vehicles (private use portion must be apportioned).
210 
211### 5.5 Penalties
212 
213| Offence | Penalty |
214|---|---|
215| Late filing | $250 per return |
216| Repeated late filing | Escalating penalties |
217| Interest on unpaid GST | From original due date |
218 
219---
220 
221## Section 6 -- Tier 2 Catalogue (Reviewer Judgement Required)
222 
223### 6.1 Mixed-Use Assets
224 
225If the proportion of taxable use changes, adjustments may be required. Flag for reviewer if mixed-use assets exceed $5,000.
226 
227### 6.2 Bad Debts (s 26)
228 
229On invoice basis, if a debt is written off after 6 months, claim a bad debt adjustment (Box 11) for the GST component.
230 
231### 6.3 Second-Hand Goods Input Tax
232 
233A registered person can claim input tax on second-hand goods purchased from a non-registered person, subject to conditions.
234 
235### 6.4 Change of Use Adjustments
236 
237When the business/private use proportion of an asset changes, adjustments may be required in the GST return.
238 
239---
240 
241## Section 7 -- Working Paper Template
242 
243```
244NZ GST WORKING PAPER
245Taxpayer: _______________ IRD Number: ___________
246GST Number: ___________
247Period: ___________ Basis: Invoice / Payments
248Filing Frequency: Monthly / 2-Monthly / 6-Monthly
249 
250A. TOTAL SALES (Box 5)
251 A1. Standard-rated sales (incl. GST) ___________
252 A2. Zero-rated sales ___________
253 A3. Exempt sales ___________
254 A4. Total sales (A1 + A2 + A3) ___________
255 
256B. ZERO-RATED SUPPLIES (Box 6) ___________
257 
258C. TOTAL PURCHASES (Box 7)
259 C1. Standard-rated purchases (incl. GST) ___________
260 C2. Zero-rated purchases ___________
261 C3. Exempt purchases ___________
262 C4. Total purchases ___________
263 
264D. OUTPUT TAX (Box 8)
265 (A4 - B - exempt) x 3/23 ___________
266 
267E. INPUT TAX (Box 9)
268 (C4 - exempt - private) x 3/23 ___________
269 
270F. ADJUSTMENTS
271 F1. Increase (Box 10) ___________
272 F2. Decrease (Box 11) ___________
273 
274G. GST PAYABLE / REFUND (Box 12)
275 D + F1 - E - F2 ___________
276 
277REVIEWER FLAGS:
278 [ ] Registration status confirmed?
279 [ ] Accounting basis confirmed?
280 [ ] Entertainment 50% restriction applied?
281 [ ] Private use apportionment applied?
282 [ ] Tax invoices held for all input claims?
283```
284 
285---
286 
287## Section 8 -- Bank Statement Reading Guide
288 
289### NZ Bank Statement Formats
290 
291| Bank | Format | Key Fields |
292|---|---|---|
293| ANZ NZ | CSV / PDF | Date, Description, Amount, Balance |
294| ASB | CSV | Date, Unique Id, Tran Type, Cheque Number, Payee, Memo, Amount |
295| BNZ | CSV | Date, Description, Debit, Credit, Balance |
296| Westpac NZ | CSV | Date, Description, Debit, Credit, Balance |
297| Kiwibank | CSV | Date, Description, Amount, Balance |
298| TSB | CSV | Date, Details, Debit, Credit, Balance |
299 
300### Key NZ Banking Narrations
301 
302| Narration | Meaning | Classification Hint |
303|---|---|---|
304| D/C or DIRECT CREDIT | Bank transfer in | Potential income |
305| AP or AUTOPAY | Automatic payment out | Regular expense |
306| EFTPOS | Card terminal payment | Expense or income |
307| TFR / TRANSFER | Internal transfer | Investigate -- may be drawings |
308| DD / DIRECT DEBIT | Direct debit | Regular expense |
309| IRD / INLAND REVENUE | Tax payment or refund | Exclude |
310| ACC | ACC levy | Exclude from GST |
311 
312---
313 
314## Section 9 -- Onboarding Fallback
315 
316If the client provides a bank statement but cannot answer onboarding questions immediately:
317 
3181. Classify all business-name credits as potential taxable supplies
3192. Classify all regular debits to known suppliers as potential input tax claims
3203. Apply conservative defaults: invoice basis, 0% private use recovery
3214. Flag all entertainment expenses for 50% restriction
3225. Generate working paper with PENDING flags
323 
324Present these questions:
325 
326```
327ONBOARDING QUESTIONS -- NZ GST RETURN
3281. Are you GST-registered? If so, what is your GST number?
3292. What is your filing frequency (monthly, 2-monthly, 6-monthly)?
3303. Are you on invoice basis or payments (cash) basis?
3314. What is your balance date?
3325. Do you make any zero-rated supplies (exports)?
3336. Do you make any exempt supplies (financial services, residential rent)?
3347. Do you use a vehicle for business? What percentage is business use?
3358. Do you work from home? What percentage is business use?
336```
337 
338---
339 
340## Section 10 -- Reference Material
341 
342### Key Legislation
343 
344| Topic | Section |
345|---|---|
346| Imposition of GST | GSTA 1985, s 8 |
347| Zero-rated supplies | GSTA 1985, s 11 |
348| Exempt supplies | GSTA 1985, s 14 |
349| Registration | GSTA 1985, s 51 |
350| Accounting basis | GSTA 1985, s 19, 19A |
351| Input tax | GSTA 1985, s 20, 21 |
352| Filing periods | GSTA 1985, s 15, 16 |
353| Bad debts | GSTA 1985, s 26 |
354 
355### Known Gaps / Out of Scope
356 
357- Company and partnership GST returns
358- Complex financial services
359- Cross-border digital services (non-resident supplier rules)
360- Associated persons transactions
361- GST grouping
362 
363### Changelog
364 
365| Version | Date | Change |
366|---|---|---|
367| 2.0 | April 2026 | Full rewrite to v2.0 structure; NZ bank formats; local platform patterns; worked examples |
368| 1.0 | 2025 | Initial version |
369 
370### Self-Check
371 
372- [ ] Registration confirmed and GST number recorded?
373- [ ] Accounting basis confirmed (invoice vs payments)?
374- [ ] Tax fraction 3/23 used consistently?
375- [ ] Entertainment 50% restriction applied?
376- [ ] Exempt supplies included in Box 5 but excluded from GST calculation?
377- [ ] Zero-rated supplies correctly reported in Box 6?
378 
379---
380 
381## PROHIBITIONS
382 
383- NEVER charge GST if the person is not GST-registered
384- NEVER claim input tax on private expenditure
385- NEVER claim full input tax on entertainment -- the 50% restriction applies
386- NEVER use a tax fraction other than 3/23 for the 15% rate
387- NEVER allow a going concern zero-rating unless both parties are registered
388- NEVER ignore the accounting basis -- invoice vs payments basis changes when GST is accounted for
389- NEVER omit exempt supplies from Box 5 (total sales) -- they are included in total but excluded from GST calculation
390- NEVER present calculations as definitive -- always label as estimated and direct client to IR or a qualified NZ chartered accountant
391 
392---
393 
394## Disclaimer
395 
396This skill and its outputs are provided for informational and computational purposes only and do not constitute tax, legal, or financial advice. Open Accountants and its contributors accept no liability for any errors, omissions, or outcomes arising from the use of this skill. All outputs must be reviewed and signed off by a qualified professional (such as a New Zealand Chartered Accountant or equivalent licensed practitioner) before filing or acting upon.
397 
398The most up-to-date, verified version of this skill is maintained at [openaccountants.com](https://openaccountants.com). Log in to access the latest version, request a professional review from a licensed accountant, and track updates as tax law changes.
399 

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About

Use this skill whenever asked about New Zealand GST returns for self-employed individuals. Trigger on phrases like "GST return", "GST101A", "GST rate NZ", "input tax", "output tax", "zero-rated", "GST registration", "taxable supply", "IRD GST", "myIR GST", or any question about GST filing for sole traders in New Zealand. Covers the 15% standard rate, zero-rated and exempt supplies, $60K registration threshold, invoice and payments basis, and GST101A return preparation. ALWAYS read this skill before touching any NZ GST work.

NZty-2025

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