Sa400 online 2026

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Click ‘Get Form’ to open the SA400 in the editor.
Begin by entering the name of the partnership in the designated field. Ensure accuracy as this will be used for official records.
Fill in the address of the partnership, including postcode and phone number, to ensure HMRC can contact you if necessary.
Specify the nature of business being carried out, such as plumbing or electrical engineering, to provide clarity on your operations.
Indicate when the business commenced by entering the date in DD MM YYYY format.
Select the type of partnership from options like Limited Liability Partnership (LLP) or Limited Partnership (LP).
If applicable, provide your Company Registration Number (CRN) for LLPs or LPs registered before 25 October 2010.
Complete details for the nominated partner, including their name and correspondence address. If they have a Unique Taxpayer Reference (UTR), enter it here.
Finally, ensure that the nominated partner signs and dates the declaration to confirm all information is accurate before submission.

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