HomeGuidesProperty investmentCredit immobilier pour investissement locatif in Belgium

Mortgage for rental investment in Belgium

Obtaining a mortgage for rental investment in Belgium. Conditions, deposit, rates, simulation and advice for the borrower.

EH Par Edouard Hennin 2 min de lecture Mis a jour le May 28, 2026
Sommaire · 4 sections Reduire ▴

Eligibility conditions for a buy-to-let mortgage

In Belgium, obtaining a mortgage for a rental investment is more demanding than for a primary residence. Banks assess the risk differently.

Bank criteria

CriterionPrimary residenceRental investment
Minimum down payment10-20 %20-30 %
Interest rateStandard rate+0.1 to 0.3 %
Rent taken into accountNot applicable70-80 % of expected rent
Maximum debt-to-income40-45 %45-50 %
Maximum term25-30 years20-25 years

Required documents

  • Last 3 payslips
  • Tax assessments for the past 2 years
  • Bank statements for the past 3 months
  • Property description (valuation, location)
  • Rent estimate (agency or reference site)
  • Preliminary sales agreement

For the basics of investment, consult our guide buy to let.

Simulation and calculation

Typical example

ElementAmount
Purchase priceEUR 250,000
Notary fees (12.5 %)EUR 31,250
Down payment (25 %)EUR 62,500
Amount borrowedEUR 218,750
Term20 years
Fixed rate3.5 %
Monthly paymentEUR 1,268
Expected rentEUR 1,000

Monthly cash flow (first year)

ItemAmount
Rent collected+EUR 1,000
Mortgage payment-EUR 1,268
Non-recoverable charges-EUR 150
Property tax (monthly equivalent)-EUR 100
Monthly cash flow-EUR 518

This negative cash flow is common for a leveraged investment in Belgium. The goal is long-term wealth building and capital gains at resale.

Leverage effect

The advantage of a mortgage is the leverage effect: with EUR 62,500 of equity, you control an asset worth EUR 250,000. If the property appreciates by 2 % per year, the capital gain is calculated on EUR 250,000, not on EUR 62,500.

Taxation of a buy-to-let mortgage

Deductibility of interest

In Belgium, mortgage interest is deductible from real estate income in the tax return.

ElementDeductible
Mortgage interestYes (real estate income)
Capital repaidNo
Bank feesNo
Remaining balance insuranceYes (under conditions)
Property taxNot directly

Impact of cadastral income

In Belgium, rental income is taxed on the indexed cadastral income (increased by 40 %), not on the actual rent. Mortgage interest is deducted from this taxable cadastral income.

Regional specificities

RegionHousing bonusHabitat cheque reduction
BrusselsAbolishedNo
WalloniaAbolishedHabitat cheque (primary residence only)
FlandersAbolishedNo

For tax questions, also consult our guide rental investment Belgium.

Practical tips

Before signing

  1. Compare at least 3 bank offers (rates, conditions, fees)
  2. Calculate the real cash flow with all charges
  3. Build a cash reserve (at least 6 months of charges)
  4. Have the rent estimated by a professional
  5. Factor in vacancy in your calculations (1 month/year)

Optimising financing

  • Negotiate the rate (every 0.1 % counts over 20 years)
  • Prefer a fixed rate for security
  • Avoid excessively long terms (the total cost explodes)
  • Take out competitive remaining balance insurance

Tools

To simulate your investment with precision, consult our guide. Generate your lease online and manage your properties with a rental management software.

Verifie & redige par
Edouard Hennin
Real estate expert since 2018, Edouard supports Belgian landlords and tenants through their rental processes. He oversees the writing of every guide in collaboration with the legal team and ensures all content reflects current legislation in Brussels, Wallonia and Flanders.
Voir tous les articles de Hennin →
Publie May 21, 2026
Derniere verification May 28, 2026
← Tous les articles
Take action

Manage all your leases in one tool

14-day free trial, no card required.

Start - 14 days free