Basel accounting and Treuhand firm websites: local agency prices vs Kolonell (2026)

The verdict in three sentences

In Basel, a website for an accounting, tax and Treuhand firm costs a 2026 ballpark of 10 000 to 35 000+ CHF from a local agency and 3 000 to 10 000 CHF from a freelancer, with client portals and multilingual copy pushing quotes to the top. Kolonell delivers the pages that bring in mandates at a fixed 2 700, 4 500 or 8 200 CHF, with native English or French copy and launch in 3 to 4 weeks. The figure to compare before you sign is the three-year total, including who produces the German version.

What do Basel agencies, freelancers and Kolonell charge?

The ranges below are prudent ballparks rather than official figures: they come from the public rate cards of agencies in Basel and northwestern Switzerland, the minimum project sizes listed on Clutch.co agency profiles, the hourly rates commonly published by Swiss digital agencies and the rates seen on freelance platforms such as Malt and Upwork. Scope moves them a lot.

Payment is by bank transfer or Wise, 50 % to start and 50 % at delivery. The tiers are set out on our international website offer. The team works on GMT, one or two hours behind Basel, so Google Meet calls are scheduled at a time that suits you, with a written update every week.

What does a Basel accounting and Treuhand firm site need?

Basel firms serve life sciences suppliers, logistics and trading companies, SMEs, the self-employed, international employees of the pharma and chemicals groups, and a large population of cross-border workers from Alsace and South Baden. A site that converts usually needs:

• Service pages: bookkeeping, payroll, annual accounts, tax returns, VAT, advisory, company formation, and cross-border or expat tax where the firm offers it.
• Client type pages: SMEs, startups, the self-employed, cross-border workers, international employees and families, foreign companies opening a Swiss entity.
• A team page listing qualifications actually held and languages spoken, often German, English and French.
• Booking and onboarding: an appointment calendar and a short mandate request form, never asking for financial data.
• Secure document exchange: a link or embed of the portal you already use is included; a custom portal or a connection to your accounting software is quoted on request.
• Resources: general explainers and a newsletter, never individual tax advice.

Kolonell writes natively in English and French, which covers international and Alsatian clients; German copy is supplied by the firm or quoted separately. The revised Federal Act on Data Protection (nLPD/revFADP), in force since 1 September 2023, applies to forms, cookies and file transfers, and financial and identity data call for secure exchange. Professional associations such as EXPERTsuisse and TREUHAND|SUISSE have rules on advertising and the use of titles: check them and display only titles the firm holds. AML obligations may also apply to some services. This is not legal advice.

What will each option cost over three years?

Illustrative assumptions, identical for every column: hosting and domain at 35 CHF a month, maintenance at 140 CHF a month from month 4 to month 36. Kolonell maintenance is quoted on request; the assumption only keeps the comparison like for like.

On Kolonell Premium at 8 200 CHF, the same assumptions give a three-year total of 14 080 CHF, with a bilingual English and French site and 6 months of support.

Which questions separate a good quote from a risky one?

Mini case study

Illustrative example: Thomas is a partner in a five-person Treuhand firm near Basel SBB, serving SMEs, pharma expatriates and cross-border workers. A local agency quotes 18 000 CHF for a German and English site in 12 weeks. He chooses Kolonell Growth at 4 500 CHF for the English site, with client type pages for expatriates and cross-border workers, and his team supplies the German pages. Saving on the build: 13 500 CHF, which he splits between a professional translation review and search work quoted separately.

FAQ

What does an accounting firm website cost in Basel in 2026?

As a ballpark, 10 000 to 35 000+ CHF from a local agency and 3 000 to 10 000 CHF from a freelancer. Kolonell charges a fixed 2 700, 4 500 or 8 200 CHF.

Can Kolonell produce the German pages?

No, the team writes natively in English and French only. German is supplied by the firm or quoted separately, and the site is built for 2 or 3 languages.

Do you build pages for cross-border workers?

Yes, client type pages are included from Growth at 4 500 CHF. Their content stays general and never replaces individual tax advice.

Is our client portal included?

A link or embed of your existing portal is included in all 3 tiers. A custom portal or software integration is quoted on request.

How long does it take?

Starter and Growth launch in 3 to 4 weeks; Premium follows a written schedule, usually 4 to 6 weeks. Request your free quote to fix the dates.

Let's scope your project. Tell us your services, client types and languages, and we will confirm the right tier between 2 700 and 8 200 CHF with a launch in 3 to 6 weeks. Request your free quote or see the international offer.