
Developers run staged subcontractor payments in Excel — retention, withholding and VAT calculated by hand, no version control, no sign-off, no link to the budget. Tektor certifies the work stage by stage, applies retention, withholding (including the Greek 3% on τεχνικά έργα) and VAT automatically, tracks advances and their recovery, routes a two-step TM→CEO approval with an audit trail, and ties every certificate back to the budget.

For every budget line you see Contracted, Already certified, This certification and Balance — accumulated across periods. You certify exactly what has been done, and Tektor keeps the running cumulative and the remaining balance, so a certificate is never over- or under-stated against the contract.

Retention, withholding (including the Greek 3% on technical works) and VAT are applied automatically, and the Payable is shown line by line: Net → VAT → Gross, minus Retention, minus Withholding, minus Advance = Payable. VAT follows the country — 19% in Cyprus, 24% in Greece. No more manual arithmetic on a payment certificate.

Record a subcontractor advance as a percentage or a fixed amount; recover it proportionally across certifications or as a standalone payment; net or VAT-inclusive. The advance outstanding is always on screen, so money paid up front is never quietly forgotten.

Retention, withholding — including the Greek 3% on technical works (τεχνικά έργα) — and VAT at 19% (Cyprus) or 24% (Greece), plus advance recovery. All of them are applied automatically on each certificate, so the payable figure is computed, not typed.
Yes. An advance can be a percentage or a fixed amount, recovered proportionally across certifications or as a standalone payment, and treated as net or VAT-inclusive. The outstanding advance balance is shown at all times.
Yes — a two-step sign-off: the technical manager certifies, then the CEO approves. A finalized certificate is locked against further edits, and the full audit trail records who signed and when.
Certified amounts roll straight into Budget vs Actual by code, as one stage of the money's life: Planned → Contracted → Certified → Invoiced → Paid. The budget reflects what has actually been certified, not an estimate.
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