Can I claim my phone bill?

For UK sole traders. Checked against gov.uk on 4 July 2026.

Yes, the business share.

Phone and broadband running costs are claimable in their business proportion.

Phone and broadband are allowable running costs on the self-employment pages. One phone for everything is normal for a sole trader, and the claim is the business share of the bill: if roughly 60% of the use is work, 60% of the bill is the claim.

A phone or line used only for the business is claimable in full. Be ready to show how a split was arrived at; a month of typical usage is a reasonable basis.

Quick answers

Can I claim my whole phone bill?
Only if the phone is used solely for business. A mixed-use phone is claimed in its business proportion.

Is home broadband claimable?
The business share is, on the same principle as the phone: claim the proportion that reflects business use.

Compliance first.Every figure checked verbatim against gov.uk, with the date on the page

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Sources: HMRC's SA103F Notes 2026 (the self-employment notes for the tax return). Checked on 4 July 2026.