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How to complete and submit an Other Interest (OI) return using the HMRC spreadsheet or electronic flat text file.
Consistent and standards-based comma-separated values (CSV) files help make data more effective and easier to share across government.
Find out how to complete and submit a return using the HMRC spreadsheet or electronic flat text file (EFTF).
Find out how to work out payments and when you should make them if your company’s annual taxable profits are over £20 million.
If you’re obligated under extended producer responsibility (EPR) for packaging, you must register your organisation with the environmental regulator and pay a registration fee.
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