You stay in control
Solon prepares, you approve. Nothing happens without your sign-off.
Always in control of your nonprofit's finances
Agentic AI that handles your books and keeps you compliant
Get early access
You own your data
US hosting
Privacy-first AI
Encrypted
Ask your question, Solon handles the rest.
Tell it what you need and your AI treasurer takes care of it.
I lose hours every week to receipts and matching transactions.
Send them over, and I'll record and match everything.
23 receipts recorded · books balancedThe board wants visibility and the ability to approve payments.
Done: they get live visibility and approve with dual approval.
Live visibility · dual approval activeVolunteers ask me for approval on every single expense.
Give them their own budget, and they'll automatically stay within the agreed limits.
5 budgets shared · live balancesAs a volunteer, I don't want to risk breaking rules or facing liability.
I track the rules, schedule every review, and log who signs off on what.
Rules tracked · tasks assigned · deadlines scheduledSave 3 hours per week
The board always has live visibility
No more one-off approvals
Always compliant, nothing missed
AI that supports, not replaces
Solon does the work, but you decide. Your data stays in the United States and is never used to train public AI models.
Your data stays yours
US-based hosting and encrypted storage. Never shared with public AI.
No risk as a volunteer
Solon tracks rules and deadlines and logs everything, fully traceable.
- You own your data
- US hosting
- Encrypted storage
- Complete audit trail
- Roles & permissions
"I used to dread year-end, but now I feel confident and in control."
Robert Fox
Treasurer, 501(c)(3) nonprofit, Denver, CO
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"I always dreaded year-end. Now I feel like I have it under control."
Leslie Alexander
Treasurer, Grace Fellowship, Austin, TX
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"Finally, software that explains what I need to do, instead of just tracking what I've already done."
Ralph Edwards
Treasurer, 501(c)(3) nonprofit, Denver, CO
Getting started is simple
Solon guides you through every step. No migration hassle, no bookkeeping knowledge required.
Bring over your books
Import your current bookkeeping or simply drag in your bank statements and receipts.
Solon gets everything ready
Recording, matching, reporting and deadlines are automatically prepared for you.
You stay in control
Solon handles the approval and compliance steps. You sign off, with a single glance.
Built with treasurers and controllers
Tutelium is being built in close collaboration with treasurers of nonprofits and churches, as well as financial controllers. That's how every feature fits how things actually work in practice.
Real practice as the starting point
Every feature is tested against real treasurer work, not bookkeeping theory.
Expertise built in
Controllers make sure your reviews, compliance and reporting are always correct.
You help steer the direction
As an early adopter, you help decide which features we build first.
Get early access
Pre-launch — limited spots available
Everything you need
From receipt to board report, in one platform.
Solon AI assistant
Ask questions, have entries checked, and get personalized advice. Always available.
Receipt scanning
Photos of receipts are automatically processed via the mobile app.
501(c)(3) & compliance
Deadlines, obligations and financial review always in view. Includes export for your board and funders.
Reporting & dashboard
From cash book to board report, always up to date and in one place.
Collaboration & expense reports
Multiple users, departments and expense reporting flows in one clear platform.
Automatic categorization
Solon learns from your transaction history and sets up matching rules automatically. So you categorize instantly to the right ledger account, cost center and fund, without repeating the same choices.
Simple, transparent pricing
Choose the plan that fits your organization. Cancel anytime.
14-day trial on all plans
Early adopters: 3 months free and a say in the product
Starter
Everything a small nonprofit needs to stay in control.
$
29
per month
- 3 users included
- Bookkeeping, cost centers & bank import
- AI transaction matching
- Contact & donor management
- Receipt scanning (iOS & Android)
- Cloud storage integration
- Compliance calendar (501(c)(3))
- Audit log
- AI-guided onboarding
- Solon AI assistant (limited)
Most popular
Growth
For growing organizations with departments, volunteers and more control.
$
99
per month
Everything in Starter, plus:
- 10 users included
- Budget management with forecasts (incl. mobile)
- Fund management (restricted funds)
- Volunteer portal with expense reporting
- Financial review (digital year-end review)
- Compliance export for the board
- External integrations (ChMeetings and more)
- Solon AI assistant (extended)
- Priority email & chat
Umbrella
For umbrella groups and partnerships with multiple entities under one roof.
$
249
per month
Everything in Growth, plus:
- Up to 3 sub-organizations & department management
- Up to 50 users
- AI Audit: anomalies & board report
- Advanced reporting (multi-year, fund performance)
- API access for custom integrations
- Solon AI assistant (unlimited)
Enterprise
For large organizations that want to scale without limits, with custom terms.
Custom
Contact us for pricing
Everything in Umbrella, plus:
- Unlimited organizations & users
- Custom integrations & SSO
- Personal onboarding & account manager
- SLA with response time guarantee
Clear on your data, AI and security
What data do you share with AI language models?
As little as possible. Solon never sends your entire set of books to a language model. For a specific question, we only share an anonymized, minimized summary, such as an amount or a pattern without names, account numbers, or donor information, and ask for the best interpretation or next step. We then apply that answer within your own protected environment.
Do the language models have access to our books?
No. Language models cannot access your books and never run on top of them. They only see the anonymized context needed to answer one specific question, never your complete data, balances or contacts. Your books always stay within your own protected environment.
How do you prevent personal data from leaking?
We work according to data minimization. Personal information such as names, addresses and account numbers is removed or anonymized before anything goes to a language model. In addition, every organization has its own, isolated data schema, so data never mixes with another organization's.
Is our data used to train AI?
Never. Your data is never used to train public AI models and is never shared with third parties. It exists solely for your own bookkeeping.
Where and how is our data stored?
Encrypted, on US-based servers, with full security best practices. Every action in the system is auditable, so it's always clear what happened and by whom.
Do I stay in control of what happens?
Always. Solon makes suggestions and prepares approval and compliance steps, but nothing becomes final without your sign-off. Payments require dual approval.
Do I need to know bookkeeping?
No. Solon guides you step by step and does the preparatory work. You review and approve.
Can I switch and cancel anytime?
Yes. You import your existing books or drag your bank statements and receipts in directly. As an early adopter you get in with a low barrier to entry and can cancel anytime, with no long-term commitments.
Ready to get started?
Get early accessBecome an early adopter
Tutelium is being developed together with treasurers and controllers right now. As an early adopter, you get access first, help shape the roadmap, and lock in a discounted rate for good.
Sign up as an early adopter
