Tax deductions freelancers often miss

Every euro of legitimate expense you don't claim is a euro you pay full marginal tax on for no reason. Most freelancers claim the obvious — laptop, subscriptions, coworking — and leave a surprising amount on the table. Here are the categories that quietly add up.

One up-front note: rules vary by country. Everything below is a legitimate business expense in principle in most European and Anglo tax systems, but always confirm the specifics with an accountant in your jurisdiction. This is guidance, not personalised tax advice.

Home office costs

If you work from home, you can deduct a proportion of household costs based on the percentage of your home used exclusively for business. Common inclusions:

• Rent or mortgage interest
• Utilities (electricity, gas, water)
• Internet and phone
• Household insurance
• Cleaning
• Repairs and maintenance
• Property tax / council tax

Typical calculation: (business floor area / total floor area) × total cost. In the UK, there's a simplified flat-rate option per hours worked. In Germany, the rules are strict — the room must be exclusively used for work, no dual-use.

The cost of dedicated business furniture (desk, chair, monitor arm) is 100% deductible regardless of the room calculation.

Professional development

• Books, courses, and certifications relevant to your field
• Conference tickets, and the travel and accommodation to attend
• Professional association memberships
• Trade publication subscriptions
• Language courses if genuinely needed for work

The rule almost everywhere is that the learning must maintain or extend skills for your current work. A frontend developer learning React — deductible. A frontend developer learning to bake — not.

Software and services you use for the business

The obvious ones are Adobe, Figma, JetBrains, etc. Easily forgotten:

• Password managers
• Cloud storage (Dropbox, iCloud+)
• VPN subscriptions if used for security/geo-restricted work
• Grammarly, DeepL Pro, ChatGPT / Claude subscriptions used for work
• Domain names and hosting for professional sites
• Email hosting
• Project management tools
• Screen recording / video call recording tools
• Analytics tools

If it has a business purpose, log it. If it's part-business, part-personal, apportion.

Bank and payment fees

• Business bank account fees
• Card fees on business accounts
• Stripe / PayPal / Wise transaction fees
• Currency conversion costs on business transfers
• Bank wire fees

These are 100% deductible and almost universally under-claimed because they show up in small amounts on statements and never get categorised.

Insurance

• Professional indemnity / errors and omissions
• General liability
• Cyber insurance
• Equipment insurance for business hardware
• Business travel insurance for trips abroad
• Income protection insurance (deductibility varies; check locally)

Travel and subsistence

The clean categories:

• Client meetings — travel and reasonable meals
• Site visits
• Trips to conferences or training
• Hotel stays when working away from home base
• Mileage on your own car for business trips (fixed per-km rate in most countries)

The mistake most freelancers make is claiming mileage without a log. A one-page spreadsheet with date, destination, purpose, and kilometres is the difference between a deduction and a disallowance under audit.

Marketing and business development

• Website design, build, and hosting
• Portfolio print costs
• Business cards
• Ad spend (Google, LinkedIn, Meta)
• Networking event tickets
• The €30 coffee where you pitched a real prospect (keep the receipt and note who)
• Gifts to clients — usually deductible up to a small per-recipient cap (€25–50 in most jurisdictions)

Depreciation on assets

Equipment above a per-country threshold (roughly €800–€1,500 typically) has to be depreciated — you don't deduct the full cost in year one, but spread it over the useful life (3 years for computers, 5–7 for furniture in most rules).

Many freelancers just expense the full cost and hope nobody notices. If you buy a €4,000 laptop that would be caught in a real audit, split it correctly — most accounting software handles it automatically.

Retirement contributions

In many jurisdictions, self-employed pension contributions are deductible from taxable income, sometimes up to significant limits:

• UK — up to £60,000/year to a SIPP
• Ireland — up to 40% of net relevant earnings (age-banded)
• Germany — Rürup / basic pension deductions
• US — Solo 401(k) contributions up to ~$66,000/year including employer portion
• France — PER Individuel with progressive limits

These aren't "expenses" in the ordinary sense — they're a tax-advantaged way to shift current income into future income, and one of the biggest levers a profitable freelancer has.

The record-keeping that makes it stick

A deduction that isn't documented is a deduction that disappears in an audit.

• One business bank account. Never mix. Every transaction on it is presumed to be business.
• One card for business expenses. Same reason.
• A receipt for every transaction over the receipt-required threshold in your country (often €150 in the EU). Photograph and store; the paper original is now optional in most places if the digital copy is unaltered.
• A mileage log if you claim car use.
• Business purpose noted for anything ambiguous — a coffee, a client dinner, a subscription that could be personal.
• Retention — 5 years in the UK, 6 in Ireland, 7 in the US, 8 in Hungary, 10 in Germany. Set the longest retention as your default.

The two questions to ask before claiming

1. Would I have this cost if I weren't running this business? If no, it's fully deductible. If partly, apportion.
2. Can I explain it in one sentence to an auditor? If not, don't claim it.

Do that, review your last twelve months against the list above, and there's a decent chance you'll find several thousand euros of deductions you missed. That's cash back at your marginal rate — money you already spent, that you're allowed to keep.