PIA Go! vs Astro Online Accountant: which accounting solution for your sole proprietorship?
29/01/2026
When running a sole proprietorship, your main goal is a reliable accounting system without spending excessive time on it. Today, many digital solutions promise to simplify this process. PIA Go! and Astro Online Accountant both offer online accounting services. However, their approach and the way they support entrepreneurs differ significantly. Here are the key elements to consider when choosing the solution that best fits your situation.

Two different approaches to accounting
The main difference between Astro Online Accountant and PIA Go! lies in how you collaborate with your accountant and the level of involvement you wish to maintain in your financial management.
Astro Online Accountant operates as a digital accounting firm that supports various types of entrepreneurs. The service is not limited to sole proprietorships. In this model, you submit your administration electronically, and the firm’s team takes care of processing the accounting, handling declarations and managing year-end closures. The organisation is based on a standardized working method.
This approach is particularly suited for entrepreneurs who prefer to fully outsource their accounting and spend little time on the daily handling of their documents.
PIA Go! takes a different approach. The solution has been specifically designed for sole proprietorships in Belgium. The platform, communication and working method take into account the reality of starters, part-time self-employed individuals and full-time self-employed individuals.
In practice, you work in a clear and accessible digital environment. A dedicated accountant follows your file and communicates with you when necessary. This allows you to stay informed about your financial situation while benefiting from guidance tailored to your activity.
| Astro Online Accountant | PIA Go! | |
| Type oplossing | Digitale boekhoudservice (breed) | Digitale boekhoudservice voor eenmanszaken |
| Focus | Meerdere ondernemingsvormen | Exclusief eenmanszaken |
| Werkwijze | Volledige verwerking door team | Digitale omgeving + vaste boekhouder |
| Jouw rol | Documenten aanleveren | Jij levert aan, boekhouder volgt actief op |
| Begeleiding | Inbegrepen binnen één vaste aanpak | Inbegrepen via verschillende formules |
| Flexibiliteit | Eén vaste manier van werken | Mogelijkheid om van formule te veranderen |
Cost: what are you actually paying for?
Astro Online Accountant generally offers a fixed all-in price per file. This amount depends on your situation and covers the full processing of your accounting, from tax declarations to annual closures. To know the exact price, you need to request a personalised quote. The collaboration model is then defined within that framework.
PIA Go! works with clearly structured plans that combine digital tools and accounting support. You choose the plan that best matches your activity and the level of support you need.
A dedicated accountant follows your file and, depending on the chosen plan, can handle specific tasks such as VAT returns or deadline follow-up. This way, you know in advance what is included in your plan and what level of support you can expect.
| Astro Online Accountant | PIA Go! | |
| Prijsmodel | Vaste all-in prijs per dossier | Vaste maandprijs per formule |
| Transparantie vooraf | Offerte op maat | Duidelijke formules met vaste prijzen |
| Keuze in begeleiding | Eén vaste aanpak | Keuze via formules |
| Formules / prijzen | Op maat, via offerte | Relax: €75/maand Comfort: €95/maand ComfortMax: €120/maand |
| Aanpasbaarheid | Beperkt | Mogelijkheid om van formule te wisselen |
Which solution matches your way of working?
Astro Online Accountant can be a good choice if you want to fully outsource your accounting to a firm and work within a structured collaboration based on an all-in quote.
PIA Go! is more suitable if you operate as a sole proprietor and are looking for a solution specifically designed for this type of activity. The platform, processes and communication are tailored to the reality of self-employed professionals.
This approach may also suit you if you want to stay involved in your figures while benefiting from the support of an accountant, or if you prefer to choose the level of assistance you need yourself.
PIA Go! is built around the reality of sole proprietorships and supports entrepreneurs in their day-to-day decisions.
Want to start a sole proprietorship? Choose an easy start with PIA Go!
With PIA Go!, we support startups and sole proprietorships by offering an accounting service designed specifically for their needs. Our approach combines a user-friendly digital platform with personalized guidance from experienced accountants who closely monitor your business.
Discover in our Starter Guide how to launch your business easily with PIA Go!.

