Public construction procurement in Estonia: thresholds, procedures and the 2026 reform

The estimated value is compared against thresholds, not against the market, and the comparison must be made before the procedure is launched. For procedures started with a contract notice this means: before the notice is submitted to the register. The result of that comparison does not set the budget, it sets the type of procedure.

A threshold determines four things at once, and this is what makes it a question of timetable rather than of form:

• The type of procedure, which in most cases is fixed by the threshold and is therefore not a matter of style.
• The minimum time limits for submitting tenders, which set the floor of the procedural timetable.
• The scope of the publication duty, including whether the notice also goes to the Official Journal of the European Union.
• Additional obligations, such as the abnormally low tender check and requirements relating to subcontractors. The fourth point affects construction works most.

One practical requirement follows directly: document the basis of the estimate, not only its result. A decision whose reasoning was never written down cannot be defended later.

The estimate can be made at three moments, only one of which is a requirement and a different one of which is most useful. Before launching the procedure is the requirement. During design is the most useful, because the solution is then known and both the solution and the structure of the procurement can still be influenced. After tenders are received is too late, because the procedure has already been chosen.

• The threshold governs the procedure
• Two thresholds from September
• How to calculate the estimated value
• The international threshold

All values are exclusive of VAT. The left column applies until 31 August 2026, the right from 1 September.

Three points in this table deserve separate attention. They govern which regime applies.

The domestic public procurement threshold is abolished. A three tier system is replaced by a two tier one, and this is the structural part of the reform, not indexation. The simplified threshold must therefore cover a wider range than before, which explains why the rise is roughly twofold rather than the size of inflation.

The international threshold fell, it did not rise. The European Commission adopted updated thresholds for 2026 to 2027 in December 2025, and these apply from 1 January 2026 to 31 December 2027. The update is not a political decision but the result of a calculation based on exchange rates and international agreements. The fall means slightly more procurements fall under the international regime than before.

The international threshold for construction works is high. At €5,404,000 most Estonian construction procurements fall below it, which means the domestic rules apply to them, and it is precisely those rules that change on 1 September. The reform therefore affects most construction procurements, but not the largest.

• What changes on 1 September 2026
• The raised simplified thresholds
• Transition and ongoing procurements
• How to determine the applicable regime

A minimum time limit is not the duration of a procedure. Preparation, evaluation and any review proceedings are added to it, and in construction procurement preparation is usually the longest stage. No average duration figure includes it, which is the ordinary reason why procurement timetables fail.

The extension of the construction tender deadline from 15 days to 25 is the only change that runs against the rest of the reform: it does not make the authority's work easier, it gives contractors more time to prepare. In construction that is justified, because preparing a tender means collecting subcontractor prices, and that does not depend on how fast the tenderer works.

• Types of procedure and their duration
• The simplified procedure
• The extended tender deadlines
• Planning the timetable
• Framework agreements and mini competitions

The Public Procurement Act treats construction works separately, and not only through higher thresholds. The differences concern four things: the level of thresholds, deadlines, additional checks, and obligations relating to subcontractors.

The most important single change in September concerns the abnormally low tender check. The value above which the check is mandatory rises from €150,000 to €500,000, which means that a three times wider band of procurements falls outside the mandatory check.

A professional distinction is needed here that commentary often misses. The disappearance of the duty to check does not change the risk, only the duty to look for it. A tender priced below cost remains just as likely, and its consequences, claims for additional work and the risk of abandonment, remain the same. An authority that omits the check in a €200,000 construction procurement has not broken the law, but has taken the risk onto itself.

The price to quality ratio is the second place where construction differs. A lowest price criterion is particularly sensitive in construction, because the technical specification carries the entire quality requirement: the less is described, the more competition takes place at the expense of what was not described.

• What distinguishes construction procurement
• Abnormally low tenders
• Obligations relating to subcontractors
• Price and quality in award

In autumn 2026 looking at the threshold is not enough, because two regimes apply at once. The example below works through one concrete case: reconstruction of the façade and roof of a school building, estimated value €240,000 excluding VAT, procedure launched on 15 September 2026.

Step six matters most professionally in this example. The check is not mandatory, but in €240,000 of façade work the risk of an abnormally low tender is real, and the authority decides whether to check voluntarily. Had the same procurement been launched on 15 August, the old rules would apply: a €60,000 threshold, a mandatory low tender check from €150,000, and a 15 day deadline. Same project, one month apart, four differences.

In case of doubt the type of procedure must be read from the contract notice, where it is stated, and not inferred from the date. Guessing leads to the wrong procedure.

• How to determine the applicable regime
• A procurement checklist

Taking part in public procurement is not a separate business, it is the same work in a different form. The first procurement costs more than those that follow, because company data, the European Single Procurement Document and qualification material are reusable. The decision to take part is therefore not one to make on the basis of a single procurement: the preparation cost of the first is spread across all the rest.

The September reform affects tenderers in two directions at once. More procurements fall under simpler rules, which lowers the barrier to entry and favours smaller firms. At the same time simpler rules can mean less structured procurement documents, which requires more careful reading, not less. A simpler procedure does not mean a simpler contract, and contract terms must be read just as carefully.

One change from January 2026 affects tenderers directly and is rarely covered: the state fees for bringing a challenge were doubled. This raised the threshold for challenging a decision and affects smaller tenderers most, since the fee is a proportionally larger share of the value at stake.

Order matters when preparing a tender. Start by asking subcontractors for prices, not by doing your own calculations, because their answer does not depend on your timetable. The extension of the deadline to 25 days is precisely an acknowledgement of that problem.

• Taking part as a tenderer
• The procurement register
• Grounds for exclusion
• Time to prepare a tender
• What to watch next

Three independent changes have taken or will take effect during the year, only one of which is the September reform. In practice they are confused, because they are reported together.

Fix the date the procedure is launched first. In autumn 2026 that date decides which rules apply, not the date tenders are submitted.

Document the basis of the estimated value, not only the result. It is a reviewable procedural decision, and a systematically low estimate can be challenged.

Invest in the technical specification. It is the authority's most consequential decision and the main variable in the risk of challenge, because in construction the specification carries the whole quality requirement.

As a tenderer, start by asking subcontractors. Their answer does not depend on your timetable, and 25 days is a deadline, not a reserve.

Take threshold values from the current text of the law and the Ministry of Finance table, not from a summary, including not from this guide. Summaries date quickly.

Cost estimating and budgeting for construction are the subject of separate guides, as are building permits and the building register, building energy performance, and renovation. This guide is limited to the procurement procedure and does not address performance of the contract, additional works or acceptance.

The rules governing a construction procurement are set by a single number, the estimated value, and in 2026 the reference points for that number move in two directions at once. Domestic simplified thresholds roughly double on 1 September, for construction works from €60,000 to €100,000, and the domestic public procurement threshold is abolished. The international threshold fell on 1 January from €5,538,000 to €5,404,000. The tender deadline in the simplified procedure for construction works extends from 15 days to 25, and the value above which the abnormally low tender check is mandatory rises from €150,000 to €500,000.

Two conclusions matter more than the numbers. First, in autumn 2026 the applicable regime is decided by the date the procedure is launched, and one month changes four parameters at once. Second, the disappearance of a duty to check is not the disappearance of a risk: below the €500,000 line the consequences of an abnormally low tender are exactly what they were, only the decision to look is now the authority's own.