CA42: Foreign-going mariners and deep-sea fishermen
Use this booklet to manually calculate contributions for employees who must pay National Insurance for current and previous tax years.
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National Insurance contributions tables for foreign-going mariners and deep sea fishermen.
Updates to this page
Published 28 March 2014Last updated 28 March 2024 + show all updates
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The foreign-going mariners and deep-sea fishermen booklet (CA42) covering 6 April 2024 to 5 April 2025 has been added.
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The foreign-going mariners and deep-sea fishermen booklet (CA42) covering 6 January to 5 April 2024 has been added.
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The CA42 for the tax year 2023 to 2024 has been added.
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The foreign-going mariners and deep-sea fishermen booklet (CA42) 2022 to 2023 includes updated rates of National Insurance contributions with effect from 6 November 2022.
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Updated the foreign-going mariners and deep-sea fishermen booklet (CA42) 2022 to 2023 to include the changes to the Primary Threshold announced in the Spring Statement.
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The CA42 for the tax year 2022 to 2023 has been added and 2020 to 2021 has been removed.
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The CA42 for the tax year 2020 to 2021 has been added and 2019 to 2020 has been removed.
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The CA42 for the tax year 2020 to 2021 has been added.
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The CA42 for 2019 to 2020 has been added.
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The 2018 to 2019 version of the CA42 has been added.
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Form CA42 has been updated to reflect new tax year changes.
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Updated version of CA42
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Helpbook CA42 for 2015 to 2016 has been published.
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First published.