SGIF for construction
What does each project cost today, not at closing?
SGIF for construction is the version of Loominary's intelligent invoice management system for contractors and construction companies in Portugal. Supplier invoices arrive by email, are read with AI and assigned to the right project or lot. The margin of each project is calculated without VAT as invoices come in. At month end, the batch goes to the accountant in one click.
- In production at a construction company since June 2026
- Reverse-charge VAT recognised
- Built for Portuguese tax rules
By Jorge Ferreira, founder of loominary · LinkedIn·
- Supplier
- Betões Douro, Lda.
- Invoice no.
- FT A/2291
- Taxable base
- €3,860.00
- VAT
- Reverse charge (art. 2(1)(j) CIVA)
- Total
- €3,860.00
- Suggested project
- Moradia Lavadores · Lot 3
- Category
- Materials
Project margin updated · PDF attached · sample data
The problem
Why is a project's margin only known at closing?
A construction company with 5 projects under way receives 100 to 150 supplier invoices a month. They arrive by email, on paper and as photos taken on site. Until someone reads and assigns them, nobody knows what each project has already cost.
100 to 150
supplier invoices a month
at a company with 5 projects under way
20 to 27 h
a month handling invoices
between the office and the accountant
1 to 2%
of margin lost without anyone noticing
€1,000 to €2,000 on a €100,000 project
Built for projects
What does SGIF do at a construction company?
Assignment to project and lot
Each invoice is suggested for the right project from the supplier, the history and the site name written on the document. Developments with lots, lots with invoices.
Project margin without VAT
Enter the contract value and SGIF calculates the margin in euros and as a percentage, always without VAT on both sides, updated with every invoice.
Reverse charge recognised
Subcontractors with VAT due by the buyer, intra-community purchases and credit notes recorded under the right regime.
Industry categories
Materials, subcontracting, fuel, PPE, tools, utilities, rent. Editable, with rules per supplier.
Expenses outside projects
Rent, insurance and overheads live in their own area and never contaminate any project's margin.
Batch to the accountant
Select the month, review, send. CSV with project and category, plus the original PDFs. The accountant imports it into their own software.
How it works
How does it work, from invoice to margin?
- 01
The invoice arrives by email
Suppliers send to the usual address. A forwarding rule delivers to SGIF, as a PDF, a photo or a link.
Automatic
- 02
AI reads and suggests the project
Tax data extracted, VAT regime detected, project and category suggested from the supplier and the document text.
Under a minute
- 03
Review and confirm the project
Invoice and document side by side. Confirm or correct the project. The margin updates on the spot.
The only step that is yours
- 04
Send to the accountant
At month end, select the batch and send. CSV with project and category, plus the PDFs.
One click
Expected results
What changes at a construction company with SGIF?
| Before | With SGIF | |
|---|---|---|
| Time per invoice | 6 to 8 minutes | Under 1 minute |
| Hours a month on invoices | 20 to 27 hours | 3 to 5 hours |
| Costs per project | Only at closing | Daily, with every invoice |
| Project margin | Estimated at the end | Calculated without VAT, in real time |
| Duplicate invoices | Unknown | Zero, caught on arrival |
| Delivery to the accountant | One by one | Monthly batch with CSV and PDFs |
In production at a construction company in Greater Porto
SGIF for construction has been in production since June 2026 at a construction company in Greater Porto, with more than a hundred supplier invoices a month, dozens of recurring suppliers and several projects at once. The cases the system handles today came from there: Spanish suppliers with advance payments, aggregated Via Verde tolls, invoices arriving as portal links, 52 invoices scanned into a single PDF, credit notes and deposit regularisations.
Frequently asked questions
Questions from people who run projects
What happens with invoices from Spanish suppliers?
They are read like any other. The Spanish tax number is recorded as it appears, the intra-community purchase is set to reverse charge and advance payments deducted from the total are respected: SGIF always uses the total printed on the invoice.
And Via Verde tolls?
The aggregated Via Verde statement is a proof of payment, not an invoice. It stays visible but outside the accountant's batch and the cost totals. Each operator's invoice-receipt is what counts as a cost.
Invoices that arrive through a portal with a login (EDP, Via Verde, insurers)?
They are recorded as 'awaiting document', with the link ready. Download the PDF and attach it to the invoice itself, or forward it to the invoice mailbox.
What if the site foreman scans 50 invoices into one PDF?
SGIF detects a file too large to be a single invoice, flags it and asks for the invoices to be resent one by one. Nothing is booked blindly.
Does a credit note reduce the project's cost?
Yes. Credit notes come in with a negative value and the project margin is adjusted automatically.
Does the margin include VAT?
No. The contract value can be entered with or without VAT, and SGIF converts it to a VAT-exclusive amount before subtracting the costs, which are always the taxable base. The comparison is VAT-exclusive on both sides.
How much does it cost?
The model is an initial implementation, which includes setup, import of your history, projects and categories, and training, plus a fixed monthly fee that covers infrastructure, AI and support. The amounts depend on invoice volume and the number of companies. Ask for a demo and we present a proposal with numbers.
Want to know what your projects cost, today?
A 30-minute demo with real invoices from your company. No commitment.
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- Data processing agreement
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