If the property is jointly owned by you and your husband, you will both need to complete Self Assessment Tax Returns, with each of you declaring 50% of the gross profits and 50% of the expenses.
While income from property is separate from self employment, there are some similarities. Both are reported in a self assessment tax return (SA103 - Self employment income and SA105 - Property income).
Self Assessment tax returns
Self Assessment Tax Returns cover all world-wide income, being declared on different supplementary pages. You do not submit the receipts, invoices etc along with the tax return (SA100) and property income page (SA105), however, HMRC may ask to see them at a later date.
The guidance on record keeping advises that you must keep records for at least 22 months after the end of the tax year the tax return is for.
Keeping your pay and tax records