Short Introduction
Internet and phone bills are common business costs, but they are also among the easiest expenses to overclaim because they are often used privately too.
A good claim usually depends on a simple question: can you show a reasonable business-use percentage and support it with records?
Quick Answer
Internet and phone costs may be deductible to the extent they are used for work or business. Where private use exists, only the supported business portion is usually claimable.
Core Principles
- Business use is the key, not whether the bill exists.
- A blended household service often needs a business-use calculation.
- Different treatment may apply to line rental, handset cost, app subscriptions, or bundled plans.
- Employee claims and self-employed claims may differ.
Country-by-Country Guide
- The US, UK, Australia, Canada, and New Zealand generally allow business-use claims where the work link and apportionment can be shown.
- In several jurisdictions, a simple log sample or reasonable pattern analysis may help support the percentage used.
- For Germany, France, Sweden, and the Netherlands, local guidance should be checked before relying on a fixed percentage approach.
Practical Examples
- A consultant uses one mobile for client calls, banking codes, and family use. A supported business share may be claimable.
- A home internet connection is used for client meetings, cloud storage, and personal streaming. Only the business portion is usually relevant.
- A second SIM or dedicated business phone line is often easier to support than a blended family plan.
What People Commonly Get Wrong
- Claiming 100 percent of a family mobile plan with no explanation.
- Ignoring device cost while claiming the service fee, or vice versa, without checking local rules.
- Using an arbitrary percentage that cannot be explained later.
Recordkeeping Tips
- Keep provider invoices and note the business-use method used.
- Where possible, keep a dedicated business service or line for cleaner evidence.
- Review communication costs monthly instead of trying to rebuild the logic later.
Final Takeaway
Phone and internet claims are often supportable, but they become much stronger when the business-use split is deliberate, simple, and documented.
Disclaimer
This article is general information only and does not constitute tax, legal, or financial advice. Tax treatment depends on your country, tax status, business structure, and personal circumstances. Please check the latest official guidance or speak with a qualified tax professional before filing.