{"id":5758,"date":"2025-04-24T12:37:40","date_gmt":"2025-04-24T10:37:40","guid":{"rendered":"https:\/\/nexusadvokater.wearespace.dk\/?p=5758"},"modified":"2026-08-18T21:20:33","modified_gmt":"2026-08-18T19:20:33","slug":"indeksregulering-under-ab-18-sadan-sikrer-du-korrekt-prisjustering-i-entrepriseaftaler","status":"publish","type":"post","link":"https:\/\/nexusadvokater.wearespace.dk\/nexus-dev\/byggejura-i-praksis\/indeksregulering-under-ab-18-sadan-sikrer-du-korrekt-prisjustering-i-entrepriseaftaler\/","title":{"rendered":"Indeksregulering under AB 18: S\u00e5dan sikrer du korrekt prisjustering i entrepriseaftaler"},"content":{"rendered":"\t\t
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Indeksregulering under AB 18: S\u00e5dan sikrer du korrekt prisjustering i entrepriseaftaler<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Indeksregulering efter AB 18 afh\u00e6nger af b\u00e5de aftalegrundlaget og tidspunktet for arbejdets udf\u00f8relse.<\/strong> AB 18 g\u00e6lder kun, hvis standardvilk\u00e5rene er vedtaget, og kontrakten kan indeholde et andet indeks, en anden basisdato eller s\u00e6rlige fravigelser.<\/p>

Fast pris i de f\u00f8rste 12 m\u00e5neder<\/h2>

Efter AB 18 \u00a7 34 er prisen som udgangspunkt fast for den del af arbejdet, der udf\u00f8res inden 12 m\u00e5neder fra tilbudsdagen. Perioden kaldes fastprisperioden. Det afg\u00f8rende er derfor ikke blot fakturadatoen, men hvorn\u00e5r den p\u00e5g\u00e6ldende del af arbejdet faktisk udf\u00f8res.<\/p>

Regulering efter fastprisperioden<\/h2>

For arbejde, der udf\u00f8res efter fastprisperioden, reguleres prisen efter det indeks, parterne har aftalt. Reguleringen sker fra indeksniveauet seks m\u00e5neder efter tilbudsdagen til indeksniveauet p\u00e5 udf\u00f8relsestidspunktet, som normalt opg\u00f8res efter midtpunktet i den periode, hvor det regulerede arbejde er udf\u00f8rt.<\/p>

Entrepren\u00f8ren skal kunne dokumentere beregningen og medtage reguleringen i forbindelse med betalingen for det p\u00e5g\u00e6ldende arbejde. Kontrakten og den aftalte betalingsplan b\u00f8r derfor fastl\u00e6gge, hvordan udf\u00f8relsesperiode, m\u00e6ngder og indeks knyttes sammen.<\/p>

Ekstraordin\u00e6re prisstigninger i fastprisperioden<\/h2>

Fastprisperioden udelukker ikke enhver regulering. AB 18 \u00a7 35 kan give entrepren\u00f8ren godtg\u00f8relse for prisstigninger, der skyldes statsligt indgreb, eller for ekstraordin\u00e6re prisstigninger p\u00e5 materialer og br\u00e6ndstof.<\/p>

For ekstraordin\u00e6re prisstigninger g\u00e6lder blandt andet, at prisstigningen skal v\u00e6re indtr\u00e5dt efter tilbudsdagen og f\u00f8r den aftalte indeksregulering f\u00e5r virkning, at den skal v\u00e6re generel, og at den skal kunne dokumenteres. Stigningen skal desuden overstige 10 procent i forhold til prisen p\u00e5 tilbudsdagen med till\u00e6g af 0,5 procentpoint for hver hel m\u00e5ned fra tilbudsdagen til indk\u00f8bet. Der ydes kun godtg\u00f8relse for den del af stigningen, der ligger over denne gr\u00e6nse, og ikke for prisstigninger efter, at materialet eller br\u00e6ndstoffet er indk\u00f8bt.<\/p>

Den samlede godtg\u00f8relse efter \u00a7 35 skal som udgangspunkt udg\u00f8re mindst 0,5 procent af entreprisesummen. Bestemmelsen indeholder en s\u00e6rlig regel for underentrepriseforhold, som skal inddrages, n\u00e5r kravet kommer fra en underentrepren\u00f8r.<\/p>

Dokumentationen er afg\u00f8rende<\/h2>

Et krav b\u00f8r som minimum dokumentere:<\/p>

  • at AB 18 og de relevante bestemmelser ikke er fraveget,<\/li>
  • tilbudsdag, indk\u00f8bsdato og udf\u00f8relsesperiode,<\/li>
  • aftalt indeks og relevante indekstal,<\/li>
  • oprindelig pris, faktisk indk\u00f8bspris og m\u00e6ngde,<\/li>
  • at en ekstraordin\u00e6r stigning er generel og ikke leverand\u00f8rspecifik, og<\/li>
  • den samlede beregning og t\u00e6rskel efter \u00a7 35.<\/li><\/ul>

    Indeksregulering og godtg\u00f8relse for ekstraordin\u00e6re prisstigninger er to forskellige regels\u00e6t. Et krav b\u00f8r derfor placeres under den rigtige bestemmelse og varsles og dokumenteres i overensstemmelse med kontrakten.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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    \n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\"\"\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

    Indeksregulering efter AB 18 afh\u00e6nger af b\u00e5de aftalegrundlaget og tidspunktet for arbejdets udf\u00f8relse. AB 18 g\u00e6lder kun, hvis standardvilk\u00e5rene er vedtaget, og kontrakten kan indeholde et andet indeks, en anden basisdato eller s\u00e6rlige fravigelser. Fast pris i de f\u00f8rste 12 m\u00e5neder Efter AB 18 \u00a7 34 er prisen som udgangspunkt fast for den del af […]<\/p>\n","protected":false},"author":1,"featured_media":5760,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[44,11],"tags":[],"class_list":["post-5758","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-betaling","category-blog"],"acf":[],"yoast_head":"\nIndeksregulering efter AB 18: Undg\u00e5 tab ved korrekt prisjustering<\/title>\n<meta name=\"description\" content=\"L\u00e6r hvordan AB 18 sikrer retf\u00e6rdig prisregulering i entrepriseaftaler med fastprisperiode og indeksbaseret justering.\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" 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