Fiscal investigation — IRG 15%, primary residence 5+ years, seniority allowance 5%/year: complete 2026 guide.
Legal framework: article 77 CIDTA
The taxation of real estate capital gains in Algeria is governed by article 77 of the Code of Direct Taxes and Similar Charges (CIDTA), supplemented by the 2026 Finance Act and DGI (General Tax Directorate) instructions. The mechanism is simple on paper: any capital gain realized on the transfer of real estate is subject to Global Income Tax (IRG) at flat 15%, without progressivity or brackets. The taxable capital gain is defined as:Legal formula: Net capital gain = Sale price − Acquisition price − Acquisition fees (notary, registration, land registry) − Works justified by professional invoices − Seniority allowance.
Two principles structure the whole system: economic neutrality (taxing only real gain) and incentive for long holding (rewarding with allowance sales after 3 years).
Methodology: rates and modalities cited come from art 77 CIDTA in force in 2026, cross-referenced with DGI instructions and 2026 Finance Act. Simulations use Kloufi 2026 median prices to anchor practical cases: Algiers apartment 154,206 DZD/m² (n=6,909), Oran 289,474 DZD/m² (n=1,729).
Detailed calculation of net taxable capital gain
1. Sale price (numerator)
The price used is that declared in the notarial deed of sale. DGI has control rights on price sincerity: any proven under-valuation triggers rectification to real market value + 40% penalty (art 191 CIDTA).2. Acquisition price (denominator)
The original price mentioned in the purchase deed, revalued by a monetary erosion coefficient published annually by the tax administration.3. Deductible acquisition fees
All notarial and fiscal fees paid at purchase (~8-9% of price) are fully deductible from acquisition price: notary fees, registration duties (5%), land registry (1%), fiscal stamps (0.5%), ancillary fees.4. Deductible works
Only works justified by professional invoices from registered companies are admitted. Eligible: kitchen renovation, bathroom, facade, extension, electrical compliance, thermal insulation. Excluded: routine maintenance, decoration, furniture, self-performed works without formal invoicing.5. Seniority allowance
Art 77 provides for a progressive allowance rewarding long holding:- 0% allowance for holding under 3 years
- 5% per year from year 4
- 50% allowance cap reached at 13 years of holding
Did you know? Combining deductible acquisition fees and seniority allowance can reduce taxable capital gain by 60 to 80% on 10+ year holdings. This is the main fiscal advantage of long-term real estate investment in Algeria.
The 3 total exemptions to know
The Algerian legislator has provided three total IRG capital gains exemption regimes covering the vast majority of residential transfers.Exemption 1 — Primary residence occupied 5+ years
The most frequently invoked and powerful exemption. The transfer of a property used as the seller's primary residence for at least 5 continuous years before sale is totally exempt from IRG capital gains. Documentation to keep and present to DGI:- Continuous Sonelgaz and SEAAL utility invoices over last 60 months
- Gas or fuel Sonelgaz invoices
- Residence attestations from the town hall
- Administrative documents addressed to this address: taxes, CNAS, bank, insurance
- Children's school enrollment contracts in local area (if applicable)
Exemption 2 — Direct family successions and donations
Free transfers between parents and children or between spouses are not subject to IRG capital gains. They follow the specific regime of succession and donation duties (progressive scale 5% to 40%). Article 236 of the Registration Code provides an allowance of 100,000 EUR equivalent (~15M DZD at parallel rate) per child every 10 years.Exemption 3 — Public utility expropriation
Properties transferred to the State under public utility expropriation (infrastructure, tramway, highway, mosque, school, hospital) benefit from total IRG exemption, including on replacement property acquired with the compensation. Other complementary exemptions:- Transfers by veterans and beneficiaries on their primary housing (law 99-07)
- Transfers under rural consolidation
- Transfers under 500,000 DZD threshold (modest rural property)
- Transfers by public administrations and local authorities
Three practical numerical cases — 2026 market anchoring
Case 1 — Algiers F3 sold after 8 years (standard regime)
- Purchase 2018: 8,000,000 DZD
- Notary acquisition fees (8.5%): 680,000 DZD
- Justified works (kitchen + bathroom + facade): 1,500,000 DZD
- Acquisition price retained: 8,000,000 + 680,000 + 1,500,000 = 10,180,000 DZD
- Sale 2026: 20,000,000 DZD (aligned Kloufi Algiers 2026 median)
- Gross capital gain: 20,000,000 − 10,180,000 = 9,820,000 DZD
- Seniority allowance (5 years after the 3-year threshold × 5%): 25%
- Net taxable capital gain: 9,820,000 × 0.75 = 7,365,000 DZD
- IRG due (15%): 1,104,750 DZD (~4,500 EUR)
Case 2 — Villa primary residence 12 years (exempt)
- Purchase 2014: 25,000,000 DZD
- Continuous 12-year primary residence occupation (SEAAL, Sonelgaz, town hall, taxes, CNAS documents kept)
- Sale 2026: 55,000,000 DZD
- Theoretical capital gain: 30,000,000 DZD
- IRG due: 0 DZD (primary residence exemption 5+ years)
Case 3 — Oran F4 rental 20 years (maximum 50% allowance)
- Purchase 2006: 4,500,000 DZD
- Acquisition fees: 380,000 DZD
- Cumulative justified works: 3,200,000 DZD (progressive renovations)
- Acquisition price retained: 8,080,000 DZD
- Sale 2026: 28,000,000 DZD (aligned Kloufi Oran 2026)
- Gross capital gain: 19,920,000 DZD
- Seniority allowance (50% cap at 13+ years): 50%
- Net taxable capital gain: 19,920,000 × 0.50 = 9,960,000 DZD
- IRG due (15%): 1,494,000 DZD (~6,100 EUR)
Declaration and payment — 60-day deadline
Timing and documents
The IRG real estate capital gains declaration must be filed at the territorially competent tax office within 60 days of authentic notarial deed signing. The declaring notary generally informs the seller of this obligation, but the declarative responsibility falls on the taxpayer. Documents to attach:- Certified copy of sale deed
- Copy of original purchase deed
- Professional works invoices (originals or certified copies)
- Attestations justifying invoked exemptions
- Taxpayer bank details for payment
Payment modalities
IRG payment must accompany the declaration. Three modes accepted: Treasury bank transfer, certified check to Tax Collector, online payment via e-DGI platform.Sanctions for delay or omission
- 10% late penalty on tax due from day 1
- 0.75% monthly interest (25% cap)
- Non-declaration: automatic rectification + 25% increase
- Characterized fraud: up to 100% increase + criminal sanctions (1-5 years prison, art 193 bis CIDTA)
Practical tip: file the declaration within 30 days of the deed to have safety margin in case DGI requests additional documents. Some tax offices have review delays exceeding 45 days at peak periods (September-December).
Legal optimizations — 5 strategic levers
1. Structure primary residence for 5+ years before sale
If you plan to sell a property held as rental investment, it can be fiscally advantageous to occupy it as primary residence for at least 5 years before resale to benefit from total exemption. Particularly relevant for properties with high latent gains.2. Rigorously keep all works invoices
Unbilled or self-performed works are not deductible. Every renovation project must have a proper professional invoice mentioning the company's commercial registry number. Over 10 years, these deductions can reduce taxable gain by 1-3M DZD.3. Time spreading via progressive donations
For substantial wealth transfer to children, progressive donation (15M DZD per child every 10 years) allows spreading transmission without fiscal friction. A 60M DZD villa can be transmitted in 4 tranches of 15M DZD over 20 years to two children with minimal taxation.4. Sale timing based on the 3-year threshold
The seniority allowance only applies after the 4th complete holding year. If your property is approaching this threshold, delay sale by a few months to benefit from the first 5% allowance tier. On a 10M DZD gain, that saves 75,000 DZD.5. Coordinate with fiscal expert for properties > 30M DZD
For any property with latent gains exceeding 15M DZD, accompaniment by a DGI-approved accountant or fiscalist is strongly recommended. Mission cost (100,000-300,000 DZD) largely amortized by identified legal optimizations.Editorial Q&A
Can primary residence exemption and seniority allowance be combined?
No, both regimes are mutually exclusive. Primary residence exemption is total (100%) and prevails over any other mechanism. Seniority allowance applies to non-primary residence properties (rental, secondary residences, inherited then sold).What if the property was both primary residence then rented?
Calculation becomes prorata temporis. If you occupied the property 3 years as primary residence then 5 years as rental before selling, the "primary residence" fraction (3/8 = 37.5%) is exempt, the "rental" fraction (5/8 = 62.5%) is taxed per standard regime with seniority allowance.Is the diaspora subject to the same rules?
Yes, but primary residence occupation is harder to justify for a diaspora member. Diaspora properties are therefore almost always taxed per standard regime with seniority allowance. However, the 1999 France-Algeria tax treaty protects from double taxation: IRG paid in Algeria is not retaxed in France.Can mortgage loan interest be deducted?
No, unlike some foreign regimes. Only notary acquisition fees and justified works are deductible. Loan interest, bank file fees, and borrower insurance premiums are not admitted.Frequently Asked Questions
What is the real estate capital gains tax rate in Algeria in 2026?
Flat 15% (article 77 CIDTA) on net capital gain, after deducting notary acquisition fees, works justified by professional invoices, and applying progressive seniority allowance (5% per year after 3 years, capped at 50% after 13 years).
Is primary residence exempt?
Yes, total IRG capital gains exemption on primary residence transfer, provided continuous 5+ year occupation before sale. Documents: continuous Sonelgaz, SEAAL invoices, residence attestations, administrative correspondence.
Which fees can be deducted from acquisition price?
Notary acquisition fees (8-9% of price: notary fees, registration duties, land registry, stamps) and works justified by professional invoices (kitchen, bathroom, facade, extension). Not deductible: routine maintenance, furniture, decoration.
How does the seniority allowance work?
5% per year from year 4 of holding, capped at 50% after 13 years. Example: 8-year holding gives 25% allowance (5 years × 5%). 15-year holding gives the 50% cap.
What is the IRG capital gains declaration and payment deadline?
Within 60 days of authentic notarial deed signing. Declaration and payment made simultaneously at competent tax office. Late: 10% penalty + 0.75%/month interest (25% cap).
Are successions taxed as capital gains?
No, direct-line family successions and donations (parent-child, spouses) are not subject to IRG capital gains. They follow the specific succession/donation regime (progressive 5-40%) with 15M DZD allowance per child every 10 years.
Does the diaspora pay IRG capital gains?
Yes, diaspora is subject to same rules. Primary residence occupation being difficult to justify for non-residents, properties are generally taxed per standard regime with seniority allowance. 1999 France-Algeria tax treaty avoids double taxation.
Can mortgage loan interest be deducted?
No, art 77 CIDTA does not provide for deductibility of loan interest, bank file fees or borrower insurance premiums for taxable capital gain calculation. Only notary acquisition fees and professional works are admitted.