The verdict in three sentences
Custom accounting firm software in Toronto costs roughly CAD 55,000-95,000 to build, over a 16-to-22-week timeline. The spec should prioritize three high-ROI modules: tax deadline scheduler, client filing portal and billing. Written well, it saves 6 hours per week per staff member and avoids late-filing penalties.
What the requirements spec must cover
A vague spec doubles the risk of budget drift. Structure it module by module, each with: business goal, rules, integrations and acceptance criteria. Ledger and financial-statement integration is the non-negotiable foundation; everything else attaches to it.
| Module | Scope | Estimated cost (CAD) | Priority |
|---|---|---|---|
| Client file management | Profile, history, documents, rights | 8,000 - 13,000 | High |
| Tax deadline scheduler | GST/HST/income calendar, alerts | 10,000 - 17,000 | High |
| Client filing portal | Document upload, validation, tracking | 9,000 - 15,000 | High |
| Billing & fees | Quotes, invoices, reminders | 6,000 - 11,000 | Medium |
| Ledger integration | Chart of accounts, statements | 7,000 - 12,000 | High |
| Dashboards | Per-file profitability, workload | 4,000 - 7,000 | Medium |
Cost, timeline and total ownership
At a CAD 750 day rate, a 40-to-50-day build lands in the CAD 55,000-95,000 range. Add maintenance (support/evolution) from go-live to absorb regulatory changes.
| Item | 2026 order of magnitude | Basis |
|---|---|---|
| Initial build | CAD 55,000 - 95,000 | 30-50 person-days |
| Day rate | CAD 750 | Per person-day |
| Delivery timeline | 16 - 22 weeks | Discovery included |
| Monthly support (TMA) | CAD 1,500/month | Fixes + regulatory |
| Secure hosting | CAD 400 - 900/month | Encrypted backups |
| Team training | CAD 2,500 - 4,500 | 2-3 sessions |
Mini case study
Mr. Tran runs a 9-person firm in Toronto. Before the software, HST deadline tracking lived in a shared spreadsheet, with two late filings in 2025. The scheduler + filing portal cost CAD 28,000. Gain: 6 h/week/staff, about 54 h/week for the team. Valued at CAD 45/h, that recovers roughly CAD 10,500/month of capacity, before avoided penalties. The build pays back in under 7 months.
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What does accounting firm software really cost in Toronto in 2026?
Expect CAD 55,000-95,000 for a custom scope covering files, deadlines and portal. A firm can start with a CAD 55,000 core and add modules in stages.
Do we need ledger integration from day one?
Yes. It structures the chart of accounts and financial statements; bolting it on later costs 20-30% more in rework.
What timeline should we plan for?
16 to 22 weeks, discovery included. A client filing portal adds 2-3 weeks but sharply cuts email back-and-forth.
Is ongoing support mandatory?
Highly recommended at CAD 1,500/month: it covers fixes and adaptation to tax rule changes, which shift every year.
Can we phase the project to smooth cash flow?
Yes: files + scheduler in phase 1, portal and billing in phase 2. That spreads the investment across two fiscal years.
Let's scope your project. Tell us your number of client files, your priority modules (scheduler, portal, billing) and your indicative budget. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.
