Michael Remmen
Counsel
Certified Tax Consultant, Master of Science (M.Sc.) (Betriebswirtschaftslehre)
Articles
[{"title":"Annual Tax Act 2024: The new small business regulation in an international context","nid":"302","body":"\u003Cp\u003E\u0026lt;h2 class=\u0026quot;text-align-justify\u0026quot;\u0026gt;1 New regulations for small businesses were finally adopted in the Annual Tax Act 2024\u0026lt;\/h2\u0026gt;\u0026lt;p class=\u0026quot;text-align-justify\u0026quot;\u0026gt;The small business regulation has, to date, been limited to domestic business in accordance with \u00a7 19 of the German VAT Act (UStG). Therefore, even comparatively small companies have had to deal with complex VAT issues and questions abroad when operating internationally. In order to promote international competition, Art. 282 et seq.","field_datum":"28.11.2024\n","field_newsletter":"VAT Newsletter 51\/2024"}]
Seminars
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OEC.\n\n","field_datum_1":"10.06.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5492","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Vermeidung von Fallstricken bei der Gesch\u00e4ftsver\u00e4u\u00dferung im Ganzen (GiG)","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/vermeidung-von-fallstricken-bei-der-geschaeftsveraeusserung-im-ganzen-gig","field_referent":"\nDr. Thomas Streit, LL.M. EUR.\n\n, \nVictoria Angermaier\n\n","field_datum_1":"11.06.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5507","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Wie man Einfuhrz\u00f6lle spart \u2013 Grundlagen Pr\u00e4ferenzrecht","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/wie-man-einfuhrzoelle-spart-grundlagen-praeferenzrecht","field_referent":"\nDr. Patrik Deutsch\n\n, \nDavid Kl\u00fcgel\n\n","field_datum_1":"15.06.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5343","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Tax Compliance in gemeinn\u00fctzigen und \u00f6ffentlichen Einrichtungen (Einsteiger) \u2013Grundlagen und Aufbau eines TCMS","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/tax-compliance-in-gemeinnuetzigen-und-oeffentlichen-einrichtungen-einsteiger-grundlagen-und-aufbau-eines-tcms","field_referent":"\nProfessor Dr. Thomas K\u00fcffner\n\n, \nMatthias Menebr\u00f6cker, LL.M.\n\n","field_datum_1":"16.06.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5383","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Modul: Umsatzsteuer im Maschinen- und Anlagenbau","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/modul-umsatzsteuer-im-maschinen-und-anlagenbau","field_referent":"\nDr. Atanas Mateev\n\n, \nTim Bartel\n\n","field_datum_1":"16.06.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"Lieferungen im Maschinen- und Anlagenbau","field_seminarlink":"https:\/\/www.kmlz-akademie.de\/modul\/lieferungen-im-maschinen-und-anlagenbau","langcode":"English","edit_node":""},{"nid":"5505","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Tax Compliance Management System: Grundlagen und Umsetzung in der Praxis","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/tax-compliance-management-system-grundlagen","field_referent":"\nDr. Kristina Echterfeld, LL.M.\n\n, \nProfessor Dr. Thomas K\u00fcffner\n\n","field_datum_1":"17.06.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"https:\/\/www.kmlz-akademie.de\/modul\/tax-compliance-management-system-grundlagen","langcode":"English","edit_node":""},{"nid":"5494","field_event_typ":"Weitere Events","field_eventlinktext":"Umsatzsteuer 2026: Aktuelle Rechtsprechung verstehen und sicher umsetzen","field_eventlink":"https:\/\/www.managementcircle.de\/weiterbildung\/umsatzsteuer-aktuell.html#benefits","field_referent":"\nDenise Bahnm\u00fcller, Streit\n\n, \nDr. Thomas Streit, LL.M. EUR.\n\n","field_datum_1":"18.06.2026\n","field_datum_bis":false,"field_ort":"Management Circle | Online-Seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5508","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Wie man Einfuhrz\u00f6lle spart \u2013 Vertiefung Pr\u00e4ferenzrecht","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/wie-man-einfuhrzoelle-spart-vertiefung-praeferenzrecht","field_referent":"\nDr. Patrik Deutsch\n\n, \nDavid Kl\u00fcgel\n\n","field_datum_1":"22.06.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5383","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Modul: Umsatzsteuer im Maschinen- und Anlagenbau","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/modul-umsatzsteuer-im-maschinen-und-anlagenbau","field_referent":"\nDr. Atanas Mateev\n\n, \nTim Bartel\n\n","field_datum_1":"23.06.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"Dienstleistungen im Maschinen- und Anlagenbau","field_seminarlink":"https:\/\/www.kmlz-akademie.de\/modul\/dienstleistungen-im-maschinen-und-anlagenbau","langcode":"English","edit_node":""},{"nid":"5505","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Tax Compliance Management System: Grundlagen und Umsetzung in der Praxis","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/tax-compliance-management-system-grundlagen","field_referent":"\nDr. Kristina Echterfeld, LL.M.\n\n, \nProfessor Dr. Thomas K\u00fcffner\n\n","field_datum_1":"24.06.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"https:\/\/www.kmlz-akademie.de\/modul\/tax-compliance-management-system-umsetzung-in-der-praxis","langcode":"English","edit_node":""},{"nid":"5514","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Umsatzsteuer im Insolvenzfall: Grundlagen","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/umsatzsteuer-im-insolvenzfall-grundlagen","field_referent":"\nDr. Thomas Streit, LL.M. 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EUR.\n\n","field_datum_1":"23.07.2026\n","field_datum_bis":false,"field_ort":"Management Circle | Online-Seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5515","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Organschaft in Krise und Insolvenz","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/organschaft-in-krise-und-insolvenz","field_referent":"\nDr. Thomas Streit, LL.M. EUR.\n\n, \nDr. Yue Siebel-Kaufmann\n\n","field_datum_1":"28.07.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5494","field_event_typ":"Weitere Events","field_eventlinktext":"Umsatzsteuer 2026: Aktuelle Rechtsprechung verstehen und sicher umsetzen","field_eventlink":"https:\/\/www.managementcircle.de\/weiterbildung\/umsatzsteuer-aktuell.html#benefits","field_referent":"\nDenise Bahnm\u00fcller, Streit\n\n, \nDr. Thomas Streit, LL.M. EUR.\n\n","field_datum_1":"27.08.2026\n","field_datum_bis":false,"field_ort":"Management Circle | Online-Seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5516","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Elektronische Dienstleistungen","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/elektronische-dienstleistungen","field_referent":"\nDr. Fr\u00e9d\u00e9ric Salewski\n\n","field_datum_1":"02.09.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5494","field_event_typ":"Weitere Events","field_eventlinktext":"Umsatzsteuer 2026: Aktuelle Rechtsprechung verstehen und sicher umsetzen","field_eventlink":"https:\/\/www.managementcircle.de\/weiterbildung\/umsatzsteuer-aktuell.html#benefits","field_referent":"\nDenise Bahnm\u00fcller, Streit\n\n, \nDr. Thomas Streit, LL.M. EUR.\n\n","field_datum_1":"10.09.2026\n","field_datum_bis":false,"field_ort":"Management Circle | Online-Seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5344","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Tax Compliance in gemeinn\u00fctzigen und \u00f6ffentlichen Einrichtungen (Fortgeschrittene) - Risikoanalyse und Kontrollma\u00dfnahmen","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/tax-compliance-in-gemeinnuetzigen-und-oeffentlichen-einrichtungen-fortgeschrittene-risikoanalyse-und-kontrollmassnahmen","field_referent":"\nProfessor Dr. Thomas K\u00fcffner\n\n, \nMatthias Menebr\u00f6cker, LL.M.\n\n","field_datum_1":"14.09.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5483","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Umsatzsteuer in digitalen 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Akademie","field_eventlinktext":"VAT\u0026#039;s UP 6 | Geballte Umsatzsteuer","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/vat-s-up-6-geballte-umsatzsteuer","field_referent":"\nProfessor Dr. Thomas K\u00fcffner\n\n, \nDr. Michael Rust\n\n","field_datum_1":"18.09.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5490","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Ver\u00e4u\u00dferung von Immobilien im Umsatzsteuerrecht \u2013 Aktuelles aus der Praxis","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/veraeusserung-von-immobilien-im-umsatzsteuerrecht-aktuelles-aus-der-praxis","field_referent":"\nDr. Jochen Tillmanns\n\n","field_datum_1":"21.09.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5409","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Modul: Environmental Taxes","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/modul-environmental-taxes","field_referent":"\nDr. Atanas Mateev\n\n, \nJasmin Lindner\n\n","field_datum_1":"24.09.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"Verpackungssteuergesetz Grundz\u00fcge (Teil 2)","field_seminarlink":"https:\/\/www.kmlz-akademie.de\/modul\/verpackungssteuergesetz-grundzuege-teil-2","langcode":"English","edit_node":""},{"nid":"5404","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Steuermonitor: Das Umsatzsteuer-Update f\u00fcr \u00f6ffentliche Einrichtungen IV\/2026","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/steuermonitor-das-umsatzsteuer-update-fuer-oeffentliche-einrichtungen-iv-2026","field_referent":"\nProfessor Dr. Thomas K\u00fcffner\n\n, \nMatthias Menebr\u00f6cker, LL.M.\n\n","field_datum_1":"28.09.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5409","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Modul: Environmental Taxes","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/modul-environmental-taxes","field_referent":"\nDr. Atanas Mateev\n\n, \nJasmin Lindner\n\n","field_datum_1":"29.09.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"Einwegkunststofffondsgesetz Grundz\u00fcge (Teil 3)","field_seminarlink":"https:\/\/www.kmlz-akademie.de\/modul\/einwegkunststofffondsgesetz-grundzuege-teil-3","langcode":"English","edit_node":""},{"nid":"5408","field_event_typ":"KMLZ Akademie","field_eventlinktext":"B2B E-Rechnung in Deutschland \u2013 Are you ready?","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/b2b-e-rechnung-in-deutschland-are-you-ready","field_referent":"\nRonny Langer\n\n, \nDr. Katharina Artinger\n\n","field_datum_1":"07.10.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5498","field_event_typ":"Weitere Events","field_eventlinktext":"International VAT Expert Academy [IVEA]","field_eventlink":"https:\/\/ivcc.de\/en\/vat-expert-academy","field_referent":"\n\n\n","field_datum_1":"08.10.2026\n","field_datum_bis":"2026-10-09","field_ort":"Amsterdam","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5409","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Modul: Environmental Taxes","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/modul-environmental-taxes","field_referent":"\nDr. Atanas Mateev\n\n, \nJasmin Lindner\n\n","field_datum_1":"08.10.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"Umweltsteuern in der EU (Teil 4)","field_seminarlink":"https:\/\/www.kmlz-akademie.de\/modul\/umweltsteuern-in-der-eu-teil-4","langcode":"English","edit_node":""},{"nid":"5517","field_event_typ":"KMLZ Akademie","field_eventlinktext":"E-Charging \u2013 Umsatzsteuerliche Behandlung des Ladevorgangs und zutreffende Abrechnung","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/e-charging-umsatzsteuerliche-behandlung-des-ladevorgangs-und-zutreffende-abrechnung","field_referent":"\nDr. Matthias Oldiges\n\n","field_datum_1":"13.10.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5503","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Das 1x1 der Lagerhaltung (Zoll-, Umsatzsteuer- und Verbrauchsteuerlager)","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/das-1x1-der-lagerhaltung-zoll-umsatzsteuer-und-verbrauchsteuerlager","field_referent":"\nDr. Patrik Deutsch\n\n, \nChristoph Hartge\n\n","field_datum_1":"21.10.2026\n","field_datum_bis":false,"field_ort":"Online seminare","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5389","field_event_typ":"KMLZ Akademie","field_eventlinktext":"E-Rechnungspflicht bei gemeinn\u00fctzigen Vereinen und K\u00f6rperschaften des \u00f6ffentlichen Rechts","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/e-rechnungspflicht-bei-gemeinnuetzigen-vereinen-und-koerperschaften-des-oeffentlichen-rechts","field_referent":"\nProfessor Dr. Thomas K\u00fcffner\n\n, \nMatthias Menebr\u00f6cker, LL.M.\n\n","field_datum_1":"03.11.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5381","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Umsatzsteuer im Handel \u2013 Rabatte, Boni, WKZ und Gutscheine","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/umsatzsteuer-im-handel-rabatte-boni-wkz-und-gutscheine","field_referent":"\nBettina Finken\n\n, \nDr. Christian Reiners\n\n","field_datum_1":"05.11.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5405","field_event_typ":"KMLZ Akademie","field_eventlinktext":"VAT\u0026#039;s UP International 3","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/vat-s-up-international-3-fd078cab-01b6-44e4-acaa-9b31a2fa3c94","field_referent":"\nRonny Langer\n\n, \nDr. Atanas Mateev\n\n","field_datum_1":"10.11.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5413","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Modul: Umsatzsteuer im Baugewerbe \/ 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Akademie","field_eventlinktext":"Modul: Umsatzsteuer im Baugewerbe \/ Bauhandwerk","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/modul-umsatzsteuer-im-baugewerbe-bauhandwerk","field_referent":"\nDr. Atanas Mateev\n\n","field_datum_1":"19.11.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"Bauleistungen und Steuerschuld\u00fcbergang","field_seminarlink":"https:\/\/www.kmlz-akademie.de\/modul\/bauleistungen-und-steuerschulduebergang","langcode":"English","edit_node":""},{"nid":"5413","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Modul: Umsatzsteuer im Baugewerbe \/ Bauhandwerk","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/modul-umsatzsteuer-im-baugewerbe-bauhandwerk","field_referent":"\nDr. Atanas Mateev\n\n","field_datum_1":"24.11.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"Steuerentstehung und Abrechnung von Bauleistungen","field_seminarlink":"https:\/\/www.kmlz-akademie.de\/modul\/steuerentstehung-und-abrechnung-von-bauleistungen","langcode":"English","edit_node":""},{"nid":"5355","field_event_typ":"Weitere Events","field_eventlinktext":"M\u00fcnchner Umsatzsteuerkonferenz, IVCC e.V.","field_eventlink":"https:\/\/ivcc.de\/de\/muenchner_umsatzsteuerkonferenz","field_referent":"\n\n\n","field_datum_1":"26.11.2026\n","field_datum_bis":false,"field_ort":"Allianz Arena, Munich","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5407","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Steuermonitor: Das Umsatzsteuer-Update f\u00fcr \u00f6ffentliche Einrichtungen V\/2026","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/steuermonitor-das-umsatzsteuer-update-fuer-oeffentliche-einrichtungen-v-2026","field_referent":"\nProfessor Dr. Thomas K\u00fcffner\n\n, \nMatthias Menebr\u00f6cker, LL.M.\n\n","field_datum_1":"30.11.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5411","field_event_typ":"KMLZ Akademie","field_eventlinktext":"USt-News f\u00fcr Bilanzbuchhalter IV\/2026","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/ust-news-fuer-bilanzbuchhalter-iv-2026","field_referent":"\nProfessor Dr. Thomas K\u00fcffner\n\n, \nLaura Klein\n\n","field_datum_1":"02.12.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""},{"nid":"5413","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Modul: Umsatzsteuer im Baugewerbe \/ Bauhandwerk","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/modul-umsatzsteuer-im-baugewerbe-bauhandwerk","field_referent":"\nDr. Atanas Mateev\n\n","field_datum_1":"02.12.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"Bauleistungen im Ausland","field_seminarlink":"https:\/\/www.kmlz-akademie.de\/modul\/bauleistungen-im-ausland","langcode":"English","edit_node":""},{"nid":"5432","field_event_typ":"KMLZ Akademie","field_eventlinktext":"Umsatzsteuerrechtliche Organschaft bei K\u00f6rperschaften des \u00f6ffentlichen Rechts","field_eventlink":"https:\/\/www.kmlz-akademie.de\/modul\/umsatzsteuerrechtliche-organschaft-bei-koerperschaften-des-oeffentlichen-rechts","field_referent":"\nProfessor Dr. Thomas K\u00fcffner\n\n, \nMatthias Menebr\u00f6cker, LL.M.\n\n","field_datum_1":"14.12.2026\n","field_datum_bis":false,"field_ort":"Online seminar","field_seminarbeschreibung":"","field_seminarlink":"","langcode":"English","edit_node":""}]
Publications
Articles
- Die E-Rechnung kommt - Digitalisierung im nationalen und internationalen Kontext, MwStR 2024, S. 418, zusammen mit Dr. Markus Müller
- Praxishinweis zum 01.01.2020: Wie können Unternehmen die Überprüfung der USt-IdNr. umsetzen?, DStR 2020, S. 205, zusammen mit Dr. Markus Müller
