Archiving Work Time Records Under LOV 89: 2026 Guide

Properly archiving digital work time records under LOV 89 is one of the most practical compliance challenges facing Polish staffing agencies and construction managers operating in Denmark in 2026. The obligation is not new, but enforcement by Arbejdstilsynet, the Danish Working Environment Authority, has become more systematic, and gaps in digital record-keeping can trigger serious consequences. Whether you run a small vikarbureau or coordinate dozens of Polish workers across multiple Danish sites, understanding exactly what the law requires, and how to store it correctly, protects both the employer and the employee.

Why Digital Archiving of Working Hours Matters in 2026

The foundation of Denmark's working time legislation rests on the EU Working Time Directive and its domestic implementation, including the rules consolidated under LOV 89, the Danish Act on Working Hours. Following the landmark CJEU ruling in the CCOO case, EU member states are required to ensure that employers establish objective, reliable, and accessible systems for measuring daily working time. Denmark has translated this obligation into concrete requirements that Arbejdstilsynet inspectors actively check during site visits.

For Polish agencies placing workers on Danish construction projects, this intersects with broader contractual obligations. If you are unsure how your agency agreements interact with Danish client contracts, the article on Vikarbureau w Danii: Legal Contracts with Danish Clients 2026 provides a useful overview of those structural relationships.

Step 1: Check Whether Your Organisation Is Covered

Before setting up any archiving system, confirm that your entity falls within the scope of LOV 89. The act applies to most private-sector employers in Denmark, including foreign staffing agencies that post workers to Danish worksites. If your workers are registered under a Danish CVR number or if you operate as a vikarbureau supplying labour to Danish construction clients, you are almost certainly covered. When in doubt, consult Arbejdstilsynet's official guidance at at.dk or seek a formal opinion from the authority.

Also verify that your Polish entity's ZUS and PIP obligations are in order. Agencies that post workers internationally must maintain parallel records for Polish social insurance purposes, and the Polish Labour Inspectorate (PIP) can request documentation independently of Danish authorities.

Step 2: Identify the Required Data Fields

A compliant digital record must capture, at minimum, the daily start time, end time, and total hours worked for each individual employee. Rest periods and any overtime must be logged separately. For construction sites, where shift patterns vary and tillaeg, mandatory pay supplements, depend on precise hour-by-hour records, accuracy is especially critical. You can read more about how pay supplements connect to time records in the article on Tillaeg on Danish Construction Sites: Mandatory Pay Supplements 2026.

Each record must be linked to a specific named employee and a specific date. Anonymous or aggregated entries do not satisfy the CJEU CCOO standard. The system must also be capable of generating a readable export that an inspector can review on site or remotely.

Step 3: Configure Your Digital System Correctly

Choosing the right software is only half the task. Configuration matters as much as the tool itself. Your system must produce tamper-evident logs, meaning that any retroactive edit must leave an audit trail showing who changed what and when. This is a common gap that Arbejdstilsynet inspectors flag: a spreadsheet where cells can be quietly overwritten without a timestamp fails this test entirely.

For agencies employing students or seasonal workers on construction sites, the system must handle variable schedules reliably. The Polish Students on Danish Construction Sites: Agency Checklist 2026 article outlines additional documentation requirements specific to that workforce category, which complement your archiving setup.

Once configured, run a test cycle covering at least one full pay period before going live. Verify that exports are readable in both Danish and, where required, Polish, and that the data can be retrieved quickly if an inspector arrives unannounced.

Step 4: Submit or Store Records According to Retention Rules

Danish law requires that working time records be kept for a defined retention period after the employment relationship ends. While the exact retention window should be confirmed against current Arbejdstilsynet guidance at at.dk, the general principle is that records must remain accessible for inspection for several years after the relevant work period. Store files in a format that will remain readable over time, proprietary formats that depend on a specific software licence can become inaccessible if the licence lapses.

Back up records to at least one geographically separate location. Cloud storage with automatic versioning satisfies this requirement for most agencies, provided the storage provider meets GDPR standards, since working time records contain personal data under Regulation (EU) 2016/679. The EU's own guidance on GDPR obligations for employers is available through eur-lex.europa.eu.

Step 5: Prepare for an Arbejdstilsynet Inspection

When an inspector from Arbejdstilsynet visits a site or requests documentation remotely, you should be able to produce complete records for any named worker within a short timeframe. Prepare a simple internal procedure: designate one person responsible for record exports, ensure they know how to generate a report covering any date range, and test that procedure at least once per quarter.

Consider also keeping a brief written summary of your archiving system, what software is used, where data is stored, who has access, and how edits are tracked. This one-page document can significantly speed up an inspection and demonstrates that your organisation takes compliance seriously.

Common Mistakes to Avoid

The most frequent errors agencies make fall into a few clear patterns. Using a shared spreadsheet without version control is the single most common failure. Storing records only on a local device that workers carry between sites creates obvious risks of loss. Failing to record rest breaks separately from working time leads to disputes over overtime calculations. And neglecting to update the system when a worker transfers between projects or client sites means records become fragmented and difficult to reconcile.

For hypothetical illustration: an agency placing thirty workers across three Danish construction sites might discover during an internal audit that two sites have been logging hours correctly while the third has been using a paper sheet photographed and stored in a shared folder, with no audit trail and no individual timestamps. Correcting this retroactively is difficult and leaves the agency exposed for the period in question.

Actionable Advice for August 2026

Start by auditing your current system against the checklist above before the end of Q3 2026. Confirm that every active worker has a digital record with daily start and end times, that your storage solution produces tamper-evident logs, and that your GDPR data processing agreements with any cloud provider are current. Register for Arbejdstilsynet's employer newsletter at at.dk to receive updates on inspection priorities. And if your agency also handles Polish social insurance contributions, cross-check your archiving obligations with ZUS and PIP requirements at pip.gov.pl to ensure your records satisfy both jurisdictions simultaneously. A single, well-configured digital system that meets the stricter of the two sets of requirements is almost always the most efficient long-term solution.