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openaccountants/skills/oman-vat.md
oman-vat.md308 lines9.9 KB
v20
1---
2name: oman-vat
3description: Use this skill whenever asked to prepare, review, or classify transactions for an Oman VAT return for any client. Trigger on phrases like "prepare VAT return", "Oman VAT", "OTA return", or any request involving Oman VAT filing. Oman applies VAT at 5% under Royal Decree No. 121/2020, administered by the Oman Tax Authority (OTA). ALWAYS read this skill before touching any Oman VAT-related work.
4version: 2.0
5---
6 
7# Oman VAT Return Skill v2.0
8 
9## Section 1 -- Quick reference
10 
11| Field | Value |
12|---|---|
13| Country | Sultanate of Oman |
14| Standard rate | 5% |
15| Zero rate | 0% (exports, international transport, oil/gas exploration, healthcare, education, specified foodstuffs, first supply of residential property) |
16| Exempt supplies | Financial services (margin-based), bare land, local passenger transport, residential rental |
17| Return form | OTA VAT Return (electronic) |
18| Filing portal | https://www.taxoman.gov.om |
19| Authority | Oman Tax Authority (OTA) |
20| Currency | OMR (Omani Rial) |
21| Filing frequency | Monthly or Quarterly (assigned by OTA) |
22| Deadline | Last day of month following period end |
23| Mandatory registration | OMR 38,500 annual taxable supplies |
24| Voluntary registration | OMR 19,250 annual taxable supplies or expenditure |
25| Primary legislation | Royal Decree No. 121/2020; Ministerial Decision No. 53/2021 |
26| Contributor | Open Accounting Skills Registry |
27| Validated by | Pending |
28| Last research update | April 2026 |
29 
30**Conservative defaults:**
31 
32| Ambiguity | Default |
33|---|---|
34| Unknown rate on a sale | 5% |
35| Unknown VAT status of a purchase | Not deductible |
36| Unknown counterparty country | Domestic Oman |
37| Unknown blocked-input status | Blocked |
38 
39---
40 
41## Section 2 -- Required inputs and refusal catalogue
42 
43### Required inputs
44 
45**Minimum viable** -- bank statement for the period. Acceptable from Bank Muscat, NBO, Bank Dhofar, Sohar International, OAB, Alizz Islamic, or any other bank.
46 
47**Recommended** -- sales invoices, purchase invoices for input claims above OMR 20, client VAT registration number.
48 
49**Ideal** -- complete invoice register, prior period return, credit brought forward reconciliation.
50 
51### Refusal catalogue
52 
53**R-OM-1 -- VAT group.** Trigger: client is part of a VAT group. Message: "VAT group consolidation is outside this skill. Escalate to licensed tax advisor."
54 
55**R-OM-2 -- Free zone / SEZ.** Trigger: client operates in designated free zone. Message: "Free zone and SEZ entities have specific VAT treatment. Escalate to specialist."
56 
57**R-OM-3 -- Partial exemption.** Trigger: mixed taxable and exempt supplies without agreed method. Message: "Partial exemption requires OTA-agreed apportionment. Escalate."
58 
59---
60 
61## Section 3 -- Supplier pattern library
62 
63### 3.1 Omani banks (fees: exempt -- exclude)
64 
65| Pattern | Treatment | Notes |
66|---|---|---|
67| BANK MUSCAT, BANKMUSCAT | EXCLUDE | Margin-based financial service |
68| NBO, NATIONAL BANK OF OMAN | EXCLUDE | Same |
69| BANK DHOFAR | EXCLUDE | Same |
70| SOHAR INTERNATIONAL, SOHAR BANK | EXCLUDE | Same |
71| OAB, OMAN ARAB BANK | EXCLUDE | Same |
72| ALIZZ ISLAMIC | EXCLUDE | Same |
73| INTEREST, LOAN REPAYMENT | EXCLUDE | Out of scope |
74 
75### 3.2 Government and regulatory
76 
77| Pattern | Treatment | Notes |
78|---|---|---|
79| OTA, OMAN TAX AUTHORITY | EXCLUDE | Tax payment |
80| CUSTOMS, ROYAL OMAN POLICE | EXCLUDE | Government levy (check for import VAT separately) |
81| PASI, PUBLIC AUTHORITY FOR SOCIAL INSURANCE | EXCLUDE | Social insurance |
82| MINISTRY | EXCLUDE | Government fee |
83 
84### 3.3 Utilities
85 
86| Pattern | Treatment | Notes |
87|---|---|---|
88| NAMA, MAZOON, MUSCAT ELECTRICITY | Domestic 5% | Electricity |
89| OMANTEL, OOREDOO OMAN | Domestic 5% | Telecoms |
90| HAYA WATER | Domestic 5% | Water/wastewater |
91 
92### 3.4 SaaS and digital services
93 
94| Pattern | Treatment | Notes |
95|---|---|---|
96| GOOGLE, MICROSOFT, ADOBE, META | Reverse charge 5% | Non-resident digital |
97| AWS, ZOOM, SLACK, NOTION | Reverse charge 5% | Non-resident |
98| ANTHROPIC, OPENAI, GITHUB, FIGMA | Reverse charge 5% | Non-resident |
99 
100### 3.5 Payroll and transfers
101 
102| Pattern | Treatment | Notes |
103|---|---|---|
104| SALARY, WAGES | EXCLUDE | Out of scope |
105| OWN TRANSFER, INTERNAL | EXCLUDE | Internal |
106| DIVIDEND | EXCLUDE | Out of scope |
107 
108---
109 
110## Section 4 -- Worked examples
111 
112### Example 1 -- Non-resident SaaS reverse charge
113 
114**Input:** `03.01.2026 ; ZOOM VIDEO COMMUNICATIONS ; DEBIT ; Monthly ; USD 14.99 ; OMR 5.77`
115 
116Zoom is US entity. No VAT on invoice. Reverse charge at 5%. Output and input both reported. Net zero.
117 
118### Example 2 -- Standard domestic sale
119 
120**Input:** `10.01.2026 ; MUSCAT TRADING CO ; CREDIT ; Invoice 001 ; +2,000.00 ; OMR`
121 
122Domestic sale. Standard rate 5%. Output VAT = OMR 100.
123 
124### Example 3 -- Blocked motor vehicle
125 
126**Input:** `20.01.2026 ; TOYOTA OMAN ; DEBIT ; Sedan purchase ; -8,000.00 ; OMR`
127 
128Motor vehicle < 9 seats for personal transport. Input VAT blocked.
129 
130---
131 
132## Section 5 -- Classification rules
133 
134### 5.1 Standard rate 5%
135 
136Default rate for all taxable supplies. Legislation: Royal Decree 121/2020, Art. 41.
137 
138### 5.2 Zero-rated supplies (0%, input recoverable)
139 
140- Exports of goods outside Oman
141- International transport
142- First supply of residential property (within 3 years)
143- Healthcare and education (licensed providers)
144- Specified basic foodstuffs
145- Oil and gas exploration/production
146- Financial services for explicit fees to non-residents
147- Supplies to designated free zones
148 
149Legislation: Royal Decree 121/2020, Art. 42-46.
150 
151### 5.3 Exempt supplies
152 
153- Financial services (margin-based)
154- Bare land
155- Local passenger transport
156- Residential rental
157- Life insurance
158 
159Legislation: Royal Decree 121/2020, Art. 47-50.
160 
161### 5.4 GCC transitional rules
162 
163Same framework as Bahrain. Qatar and Kuwait treated as non-GCC (non-implementing).
164 
165---
166 
167## Section 6 -- VAT return form structure
168 
169### Output section
170 
171| Box | Description |
172|---|---|
173| 1 | Standard rated supplies (5%) |
174| 2 | Zero-rated supplies |
175| 3 | Exempt supplies |
176| 4 | Total supplies |
177| 5 | Output VAT on standard rated |
178| 6 | Output VAT on imports of goods (customs) |
179| 7 | Output VAT on imports of services (reverse charge) |
180| 8 | Adjustments |
181| 9 | Total output VAT |
182 
183### Input section
184 
185| Box | Description |
186|---|---|
187| 10 | Input VAT on local purchases |
188| 11 | Input VAT on imports |
189| 12 | Input VAT on imported services (reverse charge) |
190| 13 | Capital goods input VAT |
191| 14 | Adjustments (blocked, apportionment) |
192| 15 | Total allowable input VAT |
193 
194### Net calculation
195 
196| Box | Description |
197|---|---|
198| 16 | Net VAT (9 minus 15) |
199| 17 | Credit brought forward |
200| 18 | Net payable / (refundable) |
201 
202---
203 
204## Section 7 -- Reverse charge and imports
205 
206When a VAT-registered person receives services from a non-resident not registered in Oman:
2071. Self-assess output VAT at 5%
2082. Claim input VAT at 5% if for taxable supplies
2093. Net zero for fully taxable businesses
210 
211Import of goods: VAT at 5% on CIF plus customs duty. Collected by Oman Customs. Recoverable if for taxable supplies.
212 
213Legislation: Royal Decree 121/2020, Art. 36.
214 
215---
216 
217## Section 8 -- Deductibility and blocked input
218 
219Blocked categories (Ministerial Decision No. 54/2021):
220- Motor vehicles < 9 seats (unless taxi/hire/dealer)
221- Entertainment and hospitality
222- Personal-use items
223- Club memberships (recreational)
224- Purchases without valid tax invoice
225 
226Partial exemption: turnover-based apportionment, OTA approval required.
227 
228---
229 
230## Section 9 -- Filing, deadlines, and penalties
231 
232| Obligation | Deadline |
233|---|---|
234| VAT return | Last day of month following period |
235| Payment | Same |
236 
237| Violation | Penalty |
238|---|---|
239| Late filing | OMR 25 per day (max OMR 2,500) |
240| Late payment | 1% per month on unpaid amount |
241| Failure to register | OMR 5,000 |
242| Tax evasion | Fines and imprisonment |
243 
244---
245 
246## Section 10 -- Edge cases, test suite, and escalation
247 
248### Edge cases
249 
250**EC1 -- SaaS reverse charge.** Reverse charge at 5%. Net zero.
251 
252**EC2 -- Export of goods.** Zero-rated. Input recoverable.
253 
254**EC3 -- Motor vehicle blocked.** No input recovery.
255 
256**EC4 -- GCC supply to Qatar.** Treated as export for goods (zero-rated).
257 
258**EC5 -- Healthcare supply.** Zero-rated if by licensed provider.
259 
260**EC6 -- Residential property first sale.** Zero-rated within 3 years of completion.
261 
262**EC7 -- Free zone supply.** May be zero-rated. Verify certificate.
263 
264**EC8 -- Credit note.** Adjust output VAT in period issued.
265 
266### Test suite
267 
268**Test 1 -- Standard sale.** Input: OMR 10,000 net. Expected: output VAT = OMR 500 (5%).
269 
270**Test 2 -- Local purchase.** Input: OMR 5,000 + OMR 250 VAT. Expected: input VAT OMR 250 recoverable.
271 
272**Test 3 -- Reverse charge.** Input: UK services OMR 3,000. Expected: output OMR 150, input OMR 150. Net zero.
273 
274**Test 4 -- Export.** Input: goods OMR 50,000. Expected: zero-rated. Input recoverable.
275 
276**Test 5 -- Blocked.** Input: entertainment OMR 500 + OMR 25 VAT. Expected: input = 0.
277 
278### Escalation protocol
279 
280```
281REVIEWER FLAG / ESCALATION REQUIRED
282[Standard format]
283```
284 
285### Out of scope -- direct tax
286 
287- Corporate Income Tax: 15% (standard)
288- Personal Income Tax: None
289- Social insurance (PASI): employer 11.5%, employee 7%
290- Excise tax: tobacco 100%, energy drinks 100%, carbonated 50%, alcohol 100%, pork 100%
291 
292### Prohibitions
293 
294- NEVER apply any rate other than 5%, 0%, or exempt
295- NEVER allow input recovery on blocked categories
296- NEVER ignore reverse charge on non-resident services
297- NEVER treat Kuwait/Qatar as GCC implementing states
298- NEVER compute numbers -- engine handles arithmetic
299- NEVER file without checking credit brought forward
300 
301---
302 
303## Disclaimer
304 
305This 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 before filing or acting upon.
306 
307The most up-to-date, verified version of this skill is maintained at [openaccountants.com](https://openaccountants.com).
308 

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Use this skill whenever asked to prepare, review, or classify transactions for an Oman VAT return for any client. Trigger on phrases like "prepare VAT return", "Oman VAT", "OTA return", or any request involving Oman VAT filing. Oman applies VAT at 5% under Royal Decree No. 121/2020, administered by the Oman Tax Authority (OTA). ALWAYS read this skill before touching any Oman VAT-related work.

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