The final block of the budget is the one most often left as a single percentage: tax on the way out. It deserves the same treatment as construction cost, because it is frequently larger.
This chapter covers the recurring taxes during the holding period, the taxation of development profit, the transaction costs of selling, and the structural difference between selling the asset and selling the vehicle.
- municipal property tax (IMI)
- additional property tax (AIMI)
- condominium, insurance and holding overheads
- corporate taxation of development profit
- distribution and withholding considerations
- agency, marketing and legal costs on sale
- asset sale versus share sale
- record-keeping required for a clean exit
In this guide
01The holding period
From the deed until the last unit is sold, the project pays to own the asset. These costs are small per month and large over a long licensing period.
- municipal property tax (IMI) on the articles held
- additional property tax (AIMI) where the ownership position brings it into scope
- insurance on land, works and, later, completed unsold units
- security and maintenance
- condominium charges once units are constituted and before they are sold
- accounting, audit and statutory compliance for the vehicle
- professional retainers and development management overhead.
These lines belong in the cash flow month by month. Expressed as a single annual figure they look trivial; spread across a three-year cycle with a delay they are not.
02Taxation of development profit
A Portuguese project company is taxed on its profit under the corporate income tax regime, with municipal and state surcharges applying depending on the level of taxable profit and the municipality. The taxable result is not the developer's cash margin: timing differences, capitalisation of costs, financing deductibility limits and loss treatment all affect it.
Three consequences for the model:
- tax should be calculated on a projected taxable result, not applied as a flat rate to the cash margin
- the timing of the tax payment matters, because it can fall before the final sales proceeds arrive
- distributions to shareholders raise a separate question of withholding and treaty treatment, particularly for non-resident investors.
03Costs of selling
SALES-SIDE COSTS TO MODEL
- agency commission, calculated on gross sale value
- marketing: brand, imagery, CGIs, website, show unit, portal listings
- legal costs on promissory contracts and deeds
- energy certificates, technical file and any certifications buyers require
- the cost of holding unsold units, including condominium charges and IMI
- any incentives or contributions offered to close sales in a slower market.
These are typically modelled as a percentage of gross development value and are frequently understated, particularly the marketing spend on a first scheme in a new market.
05Keeping the vehicle sellable
A project company intended for a share sale must be kept clean from day one:
- one project per vehicle, with no unrelated assets or liabilities
- complete and current corporate records, filings and beneficial ownership register
- every funding movement documented at the time it occurs
- contracts drafted so warranties and defect liabilities are assignable
- the planning file, technical file and utilisation licence complete
- tax filings up to date with no open positions
- a title position that matches the registry, the tax record and the survey.
06Common failure patterns
- Applying a flat tax percentage to the cash margin instead of modelling the taxable result.
- Ignoring holding costs across a long licensing period.
- Underestimating marketing spend on a first project in an unfamiliar market.
- No plan for unsold units at facility maturity.
- Deciding between an asset sale and a share sale only when a buyer appears.
- Reconstructing corporate and technical records during buyer diligence, at cost and with price retentions.
07Frequently asked questions
Common questions developers ask at this stage.
Is IMI payable on land under development?
Municipal property tax is a recurring tax on property ownership, assessed on the tax value with rates set within statutory limits by each municipality, and land classified for construction is within its scope. The amount depends on classification and tax value, so it should be obtained for the specific articles rather than estimated.
What is AIMI?
The adicional ao IMI is an additional property tax that applies above defined thresholds of aggregate tax value, with rules that differ for individuals and entities and exclusions for certain property types. Whether it applies to a development holding depends on the classification of the property and the owner's overall position.
Is a share sale better than an asset sale?
Neither is universally better. A share sale can be attractive to a seller and less so to a buyer, who inherits the entity's history and will price diligence risk accordingly. The outcome depends on the parties, the structure and the holding, and it must be modelled for the specific case with Portuguese tax advice.
What records does a clean exit require?
Complete corporate records, documented funding, the full planning and technical file, the utilisation licence, assignable warranties and defect liabilities, tax filings, and a clear title position. Assembling this at the point of sale is expensive; maintaining it during the project costs almost nothing.
08Official sources and further reading
Legal support through VVA
Before you commit to a site or project
Once a site or project is identified, the focus shifts from general guidance to that specific transaction: title, planning position, licensing, charges, contracts and the holding structure.
Legal services are provided by Valente Veiga & Associados.

