Vertical stack
Solo Consultant Tech Stack
The 9 tools an independent management or strategy consultant actually needs — what's worth the money, what you can skip, and how the stack evolves as billing rates climb.
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TL;DR — the stack at a glance
| Category | Day-1 pick | Budget alternative |
|---|---|---|
| CRM + notes | Notion | Google Sheets |
| Scheduling | Calendly | Cal.com |
| Proposals | PandaDoc | Google Docs + Stripe link |
| Accounting | QuickBooks Online | FreshBooks |
| Time tracking | Toggl Track | Clockify (free) |
| Password manager | 1Password Business | Bitwarden |
| Email + docs | Google Workspace | Fastmail + Obsidian |
| Video calls | Zoom Pro | Google Meet |
| Payments | Stripe | PayPal Business |
Total day-1 cost: ~$95–140/mo at list price, lower with annual billing.
Who this stack is for
You charge $150–600/hr or run project-based engagements from $5k–75k. You run your own business — no staff, maybe a VA. You’re selling knowledge work, not deliverables-at-volume. Your pipeline lives or dies on referrals, repeat business, and one good LinkedIn post per quarter.
If you’re a fractional executive billing retainer-style, this stack works with light tweaks. If you’re a boutique consulting firm with 2–5 consultants under you, add a shared CRM like Pipedrive.
The essential stack (Day 1)
CRM + notes: Notion
Real CRMs are overkill for a solo consultant. You have maybe 15 active opportunities at any time, 50 past clients you could pitch to again, and 100 people in your network. A Notion database with status columns (cold, warm, proposal, client, past client) is enough.
The consultants we know who bought HubSpot Starter regretted it within six months. The data-entry burden exceeds the value until you have real sales velocity.
Scheduling: Calendly
You’ll take 3–8 discovery calls a week once you’re going. Free tier is enough unless you need round-robin or multiple event types.
Proposals: PandaDoc (or Google Docs + Stripe link)
PandaDoc is worth the money once you’re closing 2+ deals a month — the template library, e-signature, and payment collection in one place saves real time. Before that, a clean Google Doc with a Stripe payment link at the bottom converts just as well.
Accounting: QuickBooks Online (with bookkeeper) or FreshBooks (DIY)
If you have a bookkeeper — QBO. If you’re doing your own books — FreshBooks. Skip Wave unless revenue is under $50k.
Time tracking: Toggl Track
Even if you bill fixed-fee, track hours. You need to know whether that $30k project took 80 hours or 160. Toggl’s free tier handles one user indefinitely.
Password manager: 1Password Business
Every client portal. Every shared doc. Every tool on this list. Use 1Password from day one — full review here.
Email + docs: Google Workspace ($7/user/mo Business Starter)
Clients expect you to have a domain. Google Workspace gives you you@yourconsultancy.com, shared drives for each engagement, and the calendar everything else plugs into.
Payments: Stripe
Invoicing via QuickBooks or FreshBooks collects via Stripe anyway. Don’t try to go direct — the 2.9% is the cost of doing business.
Add these at $20k MRR / 5 retained clients
- Loom ($15/mo) — async client updates save 2–3 hours of sync meetings per week.
- Fathom or Otter ($19–25/mo) — auto-recorded call transcripts with searchable highlights.
- Airtable or a dedicated CRM (Pipedrive $15/mo) — when your Notion CRM page exceeds 100 rows and you notice yourself losing track of follow-ups.
- Zapier Starter ($30/mo) — stitch Calendly → QuickBooks → Slack notifications for new prospects.
Skip these (but everyone recommends them)
- Full HubSpot or Salesforce — you will never use 5% of either. The onboarding alone kills 10 billable hours.
- Dedicated proposal-only tools (Proposify, Better Proposals) — either PandaDoc covers it or a Google Doc covers it.
- Slack — use client-specific shared channels only if the client uses Slack. Solo consultants don’t need their own workspace.
- ClickUp / Asana / Monday for internal work — Notion is enough when you’re one person.
Total monthly cost
| Line item | Day 1 | At $20k MRR |
|---|---|---|
| Google Workspace Business | $7 | $7 |
| Notion Plus | $10 | $10 |
| Calendly Standard | $0 (free) | $12 |
| PandaDoc Essentials | — | $19 |
| QuickBooks Simple Start | $35 | $65 |
| FreshBooks Lite | (or) $19 | — |
| Toggl Track Starter | $0 | $10 |
| 1Password Business | $20 | $20 |
| Zoom Pro | $16 | $16 |
| Loom Starter | — | $15 |
| Fathom Pro | — | $19 |
| Zapier Starter | — | $30 |
| Total | ~$108/mo | ~$223/mo |
A single $3,000 project pays for a year of this stack. The ROI question isn’t whether to invest; it’s which tools earn back the hours you spend on admin.
The “I’m going from part-time to full-time” migration
If you’re leaving a full-time role to consult, the three things to set up in your first 30 days:
- Your business entity (LLC or S-corp) + EIN + business bank account. LegalZoom is fine; ZenBusiness is cheaper.
- QuickBooks + a bookkeeper. Don’t DIY your books past $10k/mo — the tax-time pain isn’t worth it.
- 1Password Business. Migrate every client login out of your personal vault immediately.
Everything else can wait until you have your first three clients.
Stack variations
Budget-conscious ($50–80/mo total)
Google Workspace + Notion Free + Calendly Free + FreshBooks Lite + Toggl Free + Bitwarden + Stripe + Zoom Basic. Works until ~$10k MRR, then upgrade.
Premium ($350+/mo)
Add HubSpot Professional, Fathom Team, Miro, a dedicated VA on Magic or Wing. This is the stack of a consultant billing $500k+/yr.
FAQ
Do I need a dedicated CRM as a solo consultant?
Almost certainly not in year one. A Notion database or Airtable base is enough until you have 50+ active opportunities — which most solo consultants never do.
Is Toggl worth paying for?
The free tier covers one user indefinitely. Upgrade only when you want client-project summary reports or need to add a VA.
What about a legal template library (Law Depot, Docular)?
Pay a lawyer $500–1,500 once to draft your master services agreement and engagement letter. Use those templates for life. Template sites produce contracts that sound fine but have gaps that matter in a dispute.
How should I invoice?
From your accounting tool. QuickBooks and FreshBooks both have invoicing built in, synced to your books, with Stripe collection. Stop using separate invoicing tools.
The stack
4 tools we've reviewed in this stack
1Password Business
by AgileBits
Notion
by Notion Labs
Calendly
by Calendly
QuickBooks Online
by Intuit