Tax software gets Serg search v2 and a document-download scope

End-user tax-return software must handle a new property-search API and a new document-download scope.Skatteetaten At the 10 September 2026 joint meeting for systemleverandører (SBS), Skatteetaten presented Serg søk v2Skatteetaten: it no longer returns properties that should not be added to the tax return, cutting duplicate hitsSkatteetaten, and it changes the response DTO — the identifier moves from vegadresser[0].eiendommer[0].sergEiendomsidentifikator = 77 to treff[0].sergEiendomsidentifikator = "77"SkatteetatenSkatteetaten, display text moves from highlight to visningsTekstSkatteetatenSkatteetaten, and a new query parameter sets the result-set sizeSkatteetaten. Version 1 works through 2027.Skatteetaten

Letters on tax returns and assessments — assessments, amendment notices and decisions, and information letters — now arrive as links in Dialogporten messages rather than PDF attachments in the Altinn inbox.Skatteetaten A system downloads a document by fetching the message through Altinn's API, reading out the document's api-url and calling the download serviceSkatteetaten; a separate gui-url opens the document in a browser for a logged-in userSkatteetaten. The download service has its own scope, which suppliers holding the tax-return service scopes also receiveSkatteetatenSkatteetaten; the access package granting the message controls authorisationSkatteetaten. The scope can also cover letters unrelated to returns and assessments.Skatteetaten

The SME26 delivery timetable runs through delivery-plan v2 on 7 October, a test-ready 0.9 information model with calculation logic and code lists on 30 November, and a 1.0 model freeze on 15 January.SkatteetatenSkatteetatenSkatteetaten All breaking-change items must be finished by 30 NovemberSkatteetaten; suppliers must be told of later changes and able to influence them, and the remaining calculation logic must be flagged so suppliers know what is outstanding. After the freeze, model changes need absolute necessity and supplier support.Skatteetaten The 4 February opening of UP and SDF assessments and 2027 advance assessments for UP and P is decidedSkatteetaten, with submission-blocking validations due by 4 February for UP and SDF and 1 March for personal returnsSkatteetatenSkatteetaten.

Digital-platform rental income is prefilled under fastEiendomSomUtleieobjekt when reported on a personal identity number, and under naering.oppgavegiver with the amount carried into the business specification when reported on an organisation number. Aquaculture partner fields drop endeligSamordnetPositivGrunnrenteinntekt and endeligSamordnetNegativGrunnrenteinntekt and add positivGrunnrenteinntektFoerSamordningHavbruksvirksomhet and negativGrunnrenteinntektFoerSamordningHavbruksvirksomhet. Both items are in progress.

Complete are the AKTIVITETSPENGER_FOR_UNGE treatment type and the reduced limit for care of children aged 11 or younger; in progress are the youth employment deduction, exit-tax return-migration handling, the Svalbard youth allowance and sale-value guidance for housing wealth; a more precise missing-business-specification validation is planned. Complete business items are derived petroleum income and deduction fields, a permanent-difference type for the taxable part of fund dividends, a temporary-difference type for construction-loan interest, and negative closing values for non-depreciable fixed assets. Hydropower contract information moves to company level with new entities complete, while income-specification code lists, a replacement covering-purchase entity and split financial-sector statements are in progress.

For UP and SDF returns, in progress are interest-limitation currency fields, Svalbard interest-limitation reporting and a renamed, derived NOKUS wealth entity; percentage fields are capped at 0–100 with four named exceptions. Planned prefilling changes drop own-share holdings and report securities-fund disposal gains and losses before the shielding deduction. Joint validation and calculation for spouses is under discussion as an option that would not support joint submission.

The briefing also gives a workaround for NUF errors in klargjoerforhandsfastsetting for income year 2026: request manual creation of corporate tax liability through Kontakt oss – skriv til oss with the organisation number. Suppliers must disclose unsupported tax topics before contracting and check carried-forward values when customers change systems. The next joint meeting is 5 November at 09:00.Skatteetaten

Legal basis: Skatteetaten's 10 September 2026 SBS briefing for skattemeldingen, linked from the Skattemelding – for sluttbrukersystemer supplier pages.