Why mortgage interest is a key rental expense
If you buy a rental property on credit in Morocco, the interest you pay each month to the bank is often the single biggest expense of your investment, sometimes larger than all other expenses combined. On a 800,000 MAD loan over 20 years at 5%, you pay roughly 475,000 MAD in interest over the full term, half of the capital borrowed. This interest is pure expense, not capital recovered.
Good news: in Morocco, under the real-expenses regime for rental income, that interest is fully deductible from gross rent before tax computation. This single deduction can make the difference between paying 5,000 MAD of IR per year or paying none. Many Moroccan landlords ignore this and stay on the default flat 40% regime, which can be costly when the loan is large. This guide covers everything: legal framework, documentation, concrete calculation, and when it becomes worthwhile to switch to the real regime.
Legal framework: what the General Tax Code says
The Moroccan General Tax Code provides two regimes for rental income: the flat-rate regime (40% deduction on gross) and the real regime (deduction of actual expenses). Under the real regime, the relevant article authorises the deduction of interest on loans contracted for the construction, acquisition or improvement of the rented property. The principal portion of the monthly payment is not deductible, only the interest portion is.
This distinction matters: your bank payment is made of two parts (principal + interest) whose split evolves each month per the amortization schedule. At the start of the loan, interest represents a large share of the payment (around 70% to 80% in the first months), then decreases progressively. So early in the loan is when the deduction is most powerful. Our mortgage simulator generates the full amortization table with the month-by-month split.
Flat-rate vs Real: which regime to pick with a loan
The flat-rate regime applies by default: 40% of gross rent is removed automatically, no documentation needed. It is the simplest option. The real regime demands stricter bookkeeping but allows you to deduct actual expenses. The key question: do your actual expenses exceed 40% of gross rent?
Concrete example: apartment rented at 8,000 MAD/month (96,000 MAD/year gross). Flat deduction 40% = 38,400 MAD. Real expenses: mortgage interest year 1 on a 800,000 MAD loan at 5% = ~38,000 MAD + syndic 6,000 + insurance 1,800 + TSC 1,200 = 47,000 MAD. The real regime wins: 47,000 - 38,400 = 8,600 MAD of additional deductible expenses. At an effective IR rate of 10%, that means 860 MAD of tax saved annually, multiplied across the early years of the loan.
Conversely, without a loan or with a small remaining balance, actual expenses tend to be below 40% of gross and the flat-rate regime remains the best option. Use our rental tax calculator to compare both regimes instantly with your numbers.
Concrete calculation on a 800,000 MAD loan at 5% over 20 years
Let us take a typical loan to understand the mechanics. Capital borrowed: 800,000 MAD. Rate: 5% nominal. Term: 20 years (240 monthly payments). Calculated payment: ~5,280 MAD/month. Over the full term, you repay 240 × 5,280 = 1,267,200 MAD, of which 800,000 MAD is principal and 467,200 MAD is interest.
Yearly breakdown (years 1 to 5): interest is roughly 38,000 MAD in year 1, 36,500 MAD in year 2, 35,000 MAD in year 3, 33,400 MAD in year 4, 31,700 MAD in year 5. This decline is driven by the gradual repayment of capital, which reduces the interest base. Cumulative interest years 1 to 5: about 174,600 MAD, averaging 35,000 MAD/year, meaning 35,000 MAD/year is deductible from your rental income under the real regime.
If your gross annual rent is 96,000 MAD, taxable base in real regime year 1 = 96,000 - 38,000 (interest) - 9,000 (other expenses) = 49,000 MAD. Under the 2026 IR scale: 0 on 40,000 + 10% on 9,000 = 900 MAD of annual IR. Under flat-rate: base = 96,000 × 60% = 57,600 MAD, IR = 0 on 40,000 + 10% on 17,600 = 1,760 MAD. The real regime saves 860 MAD/year on this year. Repeated over 5 years that is 4,300 MAD of IR saved, before counting other deductible expenses.
DGI documentation: what to keep on file
To deduct mortgage interest under the real regime, DGI may demand documentation in case of audit. Keep carefully: (1) the original amortization schedule from your bank detailing the principal/interest split for each payment, (2) an annual interest statement that your bank typically issues at the start of the next year (ask for it explicitly if it does not arrive), (3) the monthly payment notices and direct debit statements.
DGI can audit going back 4 years, so keep these documents for at least 5 years as a buffer. In case of a move or bank change, immediately request certified copies before your file is transferred. If you manage several rental properties with several loans, maintain a consolidated tracking sheet summarising for each property the linked loan, annual interest and other expenses. This makes filing and any future audit far easier.
Interaction with the 40% deduction: picking and switching regimes
The choice between flat-rate and real is made at your annual rental income filing on Simpl-IR. Once selected for a given tax year, the regime applies to all your rental income for that year (not just one property). You can switch regimes from one year to the next, but not mid-year.
Practical recommended strategy: early in the loan (years 1 to about 7 on a 20-year loan at 5%), the real regime is often more favorable because interest is high. Mid-loan, the balance can tilt as interest decreases. End of loan or after repayment, flat-rate becomes simpler and often equivalent. Run the math every year with our rental tax calculator which automatically compares both scenarios.
Case study: MRE landlord with loan and multiple properties
An MRE (Moroccan Residing Abroad) who bought two apartments on credit in Morocco (one in Casablanca and one in Tangier) collects 14,000 MAD/month of rent (168,000 MAD/year gross). He repays two loans totaling 1,400,000 MAD with combined interest of roughly 65,000 MAD/year early in the loan. Other expenses: syndic + TSC + insurance + management = about 22,000 MAD/year.
Flat-rate: taxable base = 168,000 × 60% = 100,800 MAD. IR: 0 (40,000) + 2,000 (10% on 20,000) + 4,000 (20% on 20,000) + 6,000 (30% on 20,000) + 272 (34% on 800) = 12,272 MAD/year.
Real: taxable base = 168,000 - 65,000 - 22,000 = 81,000 MAD. IR: 0 (40,000) + 2,000 + 4,000 + 300 (30% on 1,000) = 6,300 MAD/year.
Real vs flat-rate saving: 5,972 MAD/year, roughly 30,000 MAD over the first 5 years of the loan. For this profile, real is clearly the right choice. See our MRE mortgage guide 2026 for MRE-specific context.
FAQ on deductible mortgage interest in Morocco 2026
- Is the principal repaid deductible? No, only interest is. Principal is treated as debt repayment, not as an expense.
- What about bank origination fees? Under the real regime, origination fees and mortgage registration fees can be amortized over the loan term or deducted as setup costs. Consult your tax advisor for the best method.
- My loan has a variable rate, does that change anything? No, regardless of rate type (fixed, variable, ITT), only interest actually paid is deductible. The updated amortization schedule serves as reference.
- If I prepay, are penalty fees deductible? Generally yes under the real regime, as exceptional finance charges. Keep the bank certificate.
- Can I deduct interest if the property is vacant? Yes, as long as the property is genuinely available for rent (active listings, documented tenant search). Prolonged unjustified vacancy may be challenged by DGI.
Useful references
Use our Morocco rental profitability calculator
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