Consulting practices don’t need most of what they buy in the first year. They need three things: a way to publish credible content, a way to manage client communications and deliverables, and a way to invoice and collect. Everything else is overhead that precedes the revenue it’s supposed to support.
This post is a practical stack recommendation for a consulting practice in the €0–€5,000/month revenue range. The goal is not minimal for its own sake — it’s not buying friction or professional risk. It’s not buying tools that solve problems you don’t yet have.
The Five Categories That Actually Matter
1. Website and content publishing
What you need: A fast, professional site that publishes articles well and has a contact form.
What works: Astro (static site generator, free to host on Cloudflare Pages or Netlify), Hugo, or a minimal Webflow site. If you’re not technical, a clean Ghost or WordPress installation works. The requirement is: fast load time, clean typography, and the ability to publish long-form articles without a developer.
What you don’t need: A custom CMS, a headless WordPress setup, Webflow Enterprise, HubSpot CMS. These solve problems you don’t have at sub-€5k/month revenue.
Cost: €0–€30/month.
2. Client communication and project management
What you need: A place to share deliverables with clients, track project status, and maintain a record of what was agreed and what was delivered.
What works: Notion (free tier is sufficient for 1–3 active clients), Linear (if you work in sprints and tasks), or simply Google Drive folders with a shared Notion board. The key requirement is that the client can access their project without friction and you can find anything in 30 seconds.
What you don’t need: Basecamp, Monday.com, ClickUp, or any tool that requires an onboarding session for the client. Complexity in project management at this stage is a cost, not a benefit.
Cost: €0–€16/month.
3. Email and calendar
What you need: A professional email address on your domain ([email protected]), a reliable email client, and a calendar booking link that clients can use to schedule calls without an email chain.
What works: Google Workspace at €6/month gives you domain email, Gmail, Google Calendar, and Google Drive. Calendly free tier for booking links.
What you don’t need at this stage: An email marketing platform, a CRM, or a newsletter tool. If you have fewer than 100 client contacts, your Gmail inbox is your CRM. Add a real CRM when the contact volume makes Gmail genuinely painful — not before.
Cost: €6/month.
4. Invoicing and payments
What you need: A way to issue professional invoices, track which are paid, and accept bank transfers or card payments.
What works: Wave (free invoicing, no monthly fee, charges on card payments), Invoice Ninja (open-source, free self-hosted), or a simple country-specific invoicing tool. For international payments, Wise Business for receiving EUR from multiple countries at real exchange rates.
What you don’t need: Xero, QuickBooks, or Sage until you have a bookkeeper or accountant who requires them. These tools are for accountants managing complex books — not for a solo consultant issuing 4–6 invoices per month.
Cost: €0–€15/month.
5. AI writing and research tools
What you need: A way to draft content faster, research topics accurately, and produce polished deliverables efficiently.
What works: Claude (Anthropic) or ChatGPT at €20–€25/month. For a consulting practice, the ROI on a single AI subscription at this price point is clear: if it saves 2–3 hours per week on writing and research, that’s 8–12 hours per month that go back to billable work.
What you don’t need: Multiple AI subscriptions, specialized AI writing tools for specific content formats, or AI “productivity suites” that wrap the same underlying models with extra UI. One strong general-purpose AI model covers 90% of writing, research, and analysis needs.
Cost: €20–€25/month.
Total Stack Cost: €26–€96/month
| Category | Tool | Cost |
|---|---|---|
| Website | Astro + Cloudflare Pages | €0 |
| Email + Calendar | Google Workspace | €6/month |
| Project management | Notion free tier | €0 |
| Invoicing | Wave | €0 |
| AI tools | Claude / ChatGPT | €20–€25/month |
| Domain | Cloudflare Registrar | ~€10/year |
Under €100/month for a fully functional consulting practice infrastructure.
What to Add at €5k–€10k/Month Revenue
At this revenue level, the investments that pay off:
- LinkedIn Premium (€60–€80/month) — for InMail credits and Sales Navigator lite, if outbound prospecting becomes a meaningful acquisition channel
- Email newsletter tool (€15–€30/month) — Beehiiv or ConvertKit, when your subscriber list grows to 200+ and the newsletter is generating client conversations
- CRM (€15–€40/month) — HubSpot Starter or Pipedrive, when you have 15+ active prospects at various stages and Gmail-based tracking becomes error-prone
- Accounting software (€25–€50/month) — when a bookkeeper or accountant joins, or when VAT compliance across multiple countries requires it
None of these before €5k/month. All of them become worth the overhead after that threshold.
The Principle Behind the Stack
The minimal stack is not about being cheap. It’s about not solving problems you don’t have yet, and not creating overhead that doesn’t generate revenue.
A €200/month tool stack can be justified if it produces €500/month in saved time or extra revenue. At sub-€5k/month consulting revenue, the stack above covers everything needed to run a credible, professional practice — and leaves the budget for the one investment that actually moves revenue: more time producing content and having client conversations.
AHoosh helps consulting practices design operating models that scale without unnecessary overhead. ahoosh.ai/contact