The Saudi Taxable Year
Under Article 22, the standard taxable year in Saudi Arabia is the State's fiscal year, which runs from 1 Muharram to 30 Dhul Hijjah in the Hijri (Islamic) calendar — roughly corresponding to a 12-month period that does not align exactly with the Gregorian calendar year.
However, there is flexibility:
- A taxpayer may apply to use a different 12-month period as their taxable year, subject to Regulations
- If you change your taxable year, the transitional period between the old and new year end dates is treated as a short taxable year, and tax is calculated accordingly
Practical tip for expats: If your parent company abroad uses a December year-end, you may be able to align your Saudi entity's taxable year to match — but you must obtain approval. Speak to a local adviser before making this election.
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Choosing Your Accounting Method
Saudi tax law recognises two accounting methods, and the choice has a direct impact on when income and expenses are recorded.
Cash Method (Article 24)
Under the cash basis:
- Income is recognised when received or made available to you
- Expenses are deducted when paid
This is simpler to operate but may result in timing mismatches, particularly for businesses with significant receivables or payables.
Accrual Method (Article 25)
Under the accrual basis:
- Income is recognised when you become entitled to receive it, even if payment is delayed or paid in instalments
- Expenses are recognised when all conditions for the obligation are met, even before cash changes hands
Important: Resident companies and taxpayers required by Saudi law to keep commercial books must use the accrual method. This is the default for most expat businesses operating as registered entities.
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Long-Term Contracts
Expats in construction, engineering, or project-based industries should pay close attention to Article 26, which governs long-term contracts:
- Income and expenses for long-term contracts must be recognised using the percentage of completion method
- This is calculated by comparing costs incurred to date against total estimated contract costs
This prevents businesses from deferring all income recognition to contract completion — a common planning strategy that Saudi law specifically closes off.
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Inventory Accounting
If your business holds stock, Article 27 requires you to:
- Establish and maintain inventories for all goods held
- Deduct the cost of goods sold during each taxable year
- Calculate cost of goods sold as: opening stock + purchases during the year − closing stock
Proper inventory records are essential — ZATCA auditors routinely examine stock movements during compliance reviews.
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Accuracy of Accounting Records
Article 23 establishes a fundamental requirement: your accounting method must clearly reflect your income. If ZATCA determines that your accounting does not do this, they have authority to adjust your reported figures.
For most structured expat businesses, this means:
- Maintaining double-entry bookkeeping in line with generally accepted accounting principles (GAAP) accepted in Saudi Arabia
- Keeping records in Saudi riyals (Article 30)
- Ensuring your books are available for inspection
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Foreign Currency Transactions
All tax calculations must be in Saudi riyals (SAR). Under Article 30, if any transaction involves a foreign currency:
- Convert to SAR using the official exchange rate published by the Saudi Central Bank (SAMA)
- Use the rate applicable on the date the transaction was recorded in the books
Practical tip: Do not use average monthly or annual rates unless specifically permitted. Record the SAMA spot rate for each foreign currency transaction and retain documentary evidence.
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Non-Cash Transactions
Article 29 requires that where income or expenses involve non-cash property, services, or benefits, they must be valued at fair market value at the date of recording. This applies to:
- Barter transactions between businesses
- Benefits in kind provided to employees or third parties
- Asset transfers used as part of a commercial arrangement
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Joint Ownership and Partnership Income
Under Article 28, if you co-own property or assets with others, income and expenses are allocated proportionally to each owner's share. Each co-owner must account for their share in their individual or entity tax return.
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Compliance Checklist for Expat Taxpayers
- [ ] Confirm your taxable year and whether you need to align it with your home jurisdiction
- [ ] Determine whether you must use the accrual or cash method of accounting
- [ ] Maintain proper books and records in SAR, compliant with Saudi accounting standards
- [ ] Record foreign currency transactions using SAMA rates on transaction dates
- [ ] Keep inventory records if your business holds stock
- [ ] Apply percentage of completion accounting if you work on long-term contracts
- [ ] Retain all records for the statutory retention period and be prepared for a ZATCA audit
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Final Advice
Compliance with Saudi Arabia's income tax procedural requirements is as important as understanding your substantive tax liability. Errors in accounting method, currency conversion, or record-keeping can lead to penalties, assessments, or disputes with ZATCA. Engage a registered Saudi accountant or tax adviser early — ideally before you begin operations — to set up your reporting framework correctly from the outset.