Overview
For businesses that make both taxable and exempt supplies, Input VAT recovery is not a simple yes or no — it depends on how costs are used. Getting the apportionment calculation right is one of the most technically demanding aspects of Saudi VAT compliance.
Article 51 of the VAT Implementing Regulations sets out the proportional deduction framework for mixed businesses. The principles are drawn from Article 46 of the GCC VAT Agreement. Businesses in financial services, real estate, healthcare, and insurance — where exempt revenues are common — face this calculation every period. But even businesses outside those sectors encounter apportionment on shared overhead costs.
Who Needs to Apportion?
Apportionment applies to any taxable person that makes both taxable and exempt supplies. Under Saudi VAT, the main categories of exempt supply include financial services (loans, deposits, insurance products), residential real estate rental, and certain healthcare and education supplies. If any of these appear in your revenue alongside standard-rated or zero-rated supplies, you are a mixed business and apportionment applies to your shared costs.
The key trigger is not the percentage of exempt revenue — even a business where exempt supplies represent 5% of turnover must apportion the Input Tax on costs that cannot be directly attributed to either the taxable or exempt activity.
The Three-Tier Attribution Framework
Before applying the apportionment formula, businesses must first attempt to directly attribute each cost to either taxable or exempt use. The three-tier framework works as follows:
| Tier | Description | Recovery |
|---|---|---|
| Direct taxable attribution | Cost exclusively used for taxable or zero-rated supplies | 100% recoverable |
| Direct exempt attribution | Cost exclusively used for exempt supplies | 0% recoverable |
| Residual pool | Cost used for both, or cannot be attributed exclusively to either | Apportionment applies |
The apportionment calculation applies only to residual costs — the overhead that genuinely serves both parts of the business. Finance team salaries, office rent, IT infrastructure, and professional advisory fees are typical examples. Direct attribution should be applied wherever it is genuinely supportable; the apportionment formula is not a shortcut to be applied universally.
The Default Apportionment Formula
For residual Input Tax, Article 51(4) prescribes the default recovery percentage as a simple fraction:
Recovery % = Value of Taxable Supplies in the Prior Calendar Year ÷ (Taxable Supplies + Exempt Supplies in the Prior Calendar Year)
The resulting percentage is applied to residual Input Tax each period to determine the recoverable amount.
What Is Included and Excluded from the Fraction
| Included in the Fraction | Excluded from the Fraction |
|---|---|
| Taxable supplies (standard-rated and zero-rated) made in KSA | Capital asset disposals — these are excluded from both numerator and denominator |
| Exempt supplies made in KSA | Supplies made from overseas establishments of the same taxable person |
| Supplies made outside KSA that would be taxable or exempt if made domestically |
The exclusion of capital asset disposals is important. If a business sells a building or major piece of equipment, that transaction could dramatically distort the recovery fraction in the year of disposal. Excluding it from both the numerator and denominator preserves the accuracy of the ongoing apportionment calculation.
A Saudi bank has prior-year taxable supplies (fee income, foreign exchange) of SAR 60 million and exempt supplies (interest income, insurance) of SAR 40 million. Its residual Input VAT for Q1 on shared costs is SAR 800,000.
Recovery fraction: SAR 60m ÷ SAR 100m = 60%
Recoverable residual Input Tax: SAR 800,000 × 60% = SAR 480,000
The remaining SAR 320,000 is permanently irrecoverable for Q1 and becomes a cost to the business.
The Annual True-Up Requirement
Businesses using the default method apply a provisional recovery percentage throughout the year based on the prior year’s supply values. At the end of the calendar year, they must perform a true-up: comparing the provisional fraction used during the year against the actual supply values for the year just completed, and making an adjustment in the final VAT return for that year.
If the actual taxable percentage was higher than the provisional figure — meaning more Input Tax was recoverable in reality — an additional deduction is made. If the actual percentage was lower, a repayment is made. This adjustment ensures the full-year recovery reflects actual economic activity rather than last year’s proxy.
Businesses that were not registered for VAT in the previous calendar year have no prior-year supply data to base the fraction on. They must use estimated values for the current calendar year and then perform the true-up at year-end based on actual figures. Establishing a reasonable estimation methodology — and documenting it — is important for supporting the position in any subsequent ZATCA review.
Alternative Methods: Applying to ZATCA
The default revenue-based fraction is a reasonable proxy for most businesses. But for some — particularly those with high-value exempt transactions that do not reflect the actual use of shared costs — it may produce a recovery percentage that overstates or understates the genuine Input Tax attribution.
Article 51(8) allows a taxable person to apply to ZATCA to use an alternative proportional deduction method where that alternative more accurately reflects actual use. ZATCA can approve or reject the application and will specify a period during which the approved method must be used — up to a maximum of five years. A new application is required once that period expires.
Importantly, ZATCA retains the power to direct a change of method at any time if it determines that neither the default nor the approved alternative accurately reflects actual use. This override right means that even businesses with approved alternative methods must continue monitoring whether their method remains fit for purpose.
Compliance Risks
- Failing to perform the annual true-up. The year-end adjustment is mandatory, not optional. Businesses that apply a provisional fraction throughout the year without reconciling at year-end are non-compliant — even if the under/over-deduction is small.
- Including capital asset disposals in the fraction. Selling a property or major asset in the year and including that in the denominator distorts the recovery percentage downward. Capital asset disposals must be excluded.
- Applying the formula to directly attributable costs. The formula applies only to residual Input Tax. Applying it universally to all Input Tax — including costs that can be directly attributed — either understates or overstates recovery depending on the business’s mix.
- Using the wrong prior year. The fraction is based on the prior calendar year’s supply values, not the current period. Using current-year data instead is a common error that produces a different result.
- Apportionment applies to Input Tax on costs that cannot be exclusively attributed to either taxable or exempt supplies — the residual pool.
- The default recovery percentage is: taxable supplies ÷ (taxable + exempt supplies), based on prior-year values. Capital asset disposals are excluded from both the numerator and denominator.
- An annual true-up against actual supply values is mandatory in the final return of each calendar year.
- New registrants must use estimated values for the current year and true up at year-end.
- Alternative methods can be applied for ZATCA approval where the default formula does not accurately reflect actual use — subject to ZATCA’s override power.
This article is for informational purposes only and does not constitute legal or tax advice. Regulations referenced are based on ZATCA publications current at time of writing. Always verify with a qualified Saudi tax professional for your specific circumstances.