Client - MTD Income Sources
Detail and per-tax-year settings for a client's MTD income sources — the accounting basis, the periods of account, and the late accounting date rule election. These are the writes; to read a year, use Client - MTD Tax Year, which returns every source with its deadlines in one call.
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GET Get Income SourceReturns one income source in detail: its trading name, commencement and cessation dates, the accounting periods HMRC hold, and the quarterly reporting.../tenants/{tenant}/clients/{client}/mtd/businesses/{businessId}
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PUT Set Accounting BasisSets the accounting basis — cash or accruals — for one income source and tax year. HMRC accept this during the year and up to the tax return; after th.../tenants/{tenant}/clients/{client}/mtd/businesses/{businessId}/{taxYear}/accounting-type
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PUT Set Periods Of AccountDeclares whether a self-employment income source draws its accounts to periods other than the tax year, and if so what those periods are — a full repl.../tenants/{tenant}/clients/{client}/mtd/businesses/{businessId}/{taxYear}/periods-of-account
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POST Disapply Late Accounting Date RuleElects to disapply the automatic late accounting date rule for the tax year, so the 1–5 April profits are apportioned and reported separately rather t.../tenants/{tenant}/clients/{client}/mtd/businesses/{businessId}/{taxYear}/late-accounting-date-rule
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DELETE Withdraw Late Accounting Date Rule ElectionWithdraws a disapplication election, putting the income source back on the automatic late accounting date rule. HMRC accept this only once the year ha.../tenants/{tenant}/clients/{client}/mtd/businesses/{businessId}/{taxYear}/late-accounting-date-rule