Karbon vs SmartVault (2026): which should you pick?
As of Nov 13, 2026, SmartVault grades higher than Karbon: 2.0 against 1.6 out of 4.0.
Checked Nov 12, 2026 and Nov 13, 2026 · graded Nov 12, 2026 and Nov 13, 2026 by ToolGPA
SmartVault grades higher on the free plan and features. They get the same grade on value for money, ease of use and platforms.
Price, platforms and features side by side. The table says where each price was read and when.
SmartVault
Document management and client portal for accounting firms
Which one is for you
Pick Karbon if
- Fits if you run an accounting firm and want shared client email and workflow in one place
- Makes sense if your firm already works in Gmail and Google Calendar
Look elsewhere if
- Not for you if you want software for your own books, as it's built for firms
- Skip it if you want to try it yourself first, because there's no self-serve trial
- Pricey if you want automation: reminders and task automation need Business at $89 a user
- Watch out: monthly billing is open only to teams of 4 or more users
Pick SmartVault if
- Fits if your firm files in Lacerte, ProConnect, UltraTax or Drake and needs a client portal
- Works for practices with at least 2 or 3 staff sharing one document store
Look elsewhere if
- Pricey if you are on your own, since every plan has a user minimum of 2 or 3
- Pricey if you need unlimited e-signatures, ID verification or file retention, which need Accounting Unlimited at $85 per user
- Not for you if you want a self-serve start, as plans are booked through a demo or trial request
- Watch out: SmartRequestAI bundles are sold separately from the plans
How we grade them
| 1.6GPAKarbonWeak | 2.0GPASmartVaultFair | |
|---|---|---|
| Value for money | D$59 a user a month billed yearly for Team and $89 for Business, where the automation is. That's past the $52 where the dearer quarter starts, and Business is above $75. | D$65 per user a month billed annually ($85 monthly), against a $20 middle, and $85 for Accounting Unlimited. With the 2-user minimum, the floor is $130 a month. |
| Free plan and trial | FNo free plan, and the pricing page says self-serve free trials aren't offered, so access starts with a demo request. | DA trial is available on request but its length is not stated, and there is no free plan. |
| Features | CShared email, workflow templates, a client portal, time, budgets and billing. It runs a firm and doesn't keep a business's books, and automation isn't on Team. | BUnlimited storage, a branded portal, e-signatures, ID checks, proposals, file retention and links to Lacerte, UltraTax, Drake and CCH Axcess cover the whole job. |
| Ease of use | CNo store rating on record. You set up templates and client requests, and access starts with a demo. | CA web portal where you set up folders, templates and branding, and no store rating on record. |
| Platforms and integrations | BWeb, iPhone and Android, with Gmail, Google Calendar, Google Drive, Ignition and QuickBooks Online Accountant, plus an API. | BWeb only, with QuickBooks Online and the main US tax packages. |
| Best for | practice management for accounting firms | document storage and a client portal for accounting firms |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: Karbon and SmartVault. How we grade
Price against what you get
Karbon starts at $59 a month for each person and scores 2.3 out of 4 on features, ease of use and platforms. SmartVault starts at $65 a month for each person and scores 2.7.
SmartVault scores higher, and starts $6 a month higher: the question is whether the extra is worth that to you. Of the other accounting and invoicing tools on the chart, 28 score higher than Karbon for less, and 7 score higher than SmartVault for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- Karbon also covers tasks, shared inbox, time tracking and invoicing.
- SmartVault also covers documents, forms, file sharing and quotes and estimates.
At a glance
| Karbon | SmartVault | |
|---|---|---|
| Pricing | Paid | Free trial |
| Starts at | $59 per user / month, billed yearly ($79 billed monthly) | $65 per user / month, billed annually ($85 billed monthly) |
| Free plan | None | None |
| Free trial | None listed | Trial available on request; its length is not stated |
| Web | ||
| iOS | ||
| Android | ||
| Made by | Karbon | SmartVault |
| Price read from | karbonhq.com | smartvault.com |
| Checked | Nov 12, 2026 | Nov 13, 2026 |
Worth knowing
Karbon
- It is a tool for running a firm, not general ledger software for a business's own books.
- The pricing page says self-serve free trials are not offered; access starts with a demo request.
- Monthly billing is open only to teams of 4 or more users.
- Automatic client reminders, task automation and industry integrations are not on the Team plan.
SmartVault
- Every plan has a user minimum: 3 on Business Pro and 2 on the Accounting plans.
- Unlimited e-signatures, ID verification and file retention need Accounting Unlimited at $85 per user / month.
- SmartRequestAI bundles are sold separately from the plans.
- There is no published free plan, and plans are booked through a demo or trial request.
Key features
Karbon
- Shared email triage
- Team members can share, assign and comment on client emails, with comments and @mentions on emails, tasks and notes.
- Workflow templates
- Work is created from templates with statuses and types. Limits rise by plan: 35, 50 or unlimited statuses and 40, 75 or unlimited templates.
- Client requests and portal
- Clients get requests, file uploads and comments through a portal. Automatic client reminders need the Business plan.
- Time, budgets and billing
- Track time against budgets, then bill and collect payment from inside the same workflow.
- Integrations and API
- Connects with Gmail, Google Drive, Ignition and QuickBooks Online Accountant, and has a public API for contacts, work items and timesheets.
SmartVault
- Document management
- Cloud storage with file versioning, full-text search, email capture, activity logs and user permissions, plus a connected desktop app.
- Branded client portal
- Clients exchange password-protected files and respond to document requests through a portal carrying the firm's branding.
- Tax software integrations
- Lists direct integration with Lacerte, ProConnect and ProSeries, and configurable links to UltraTax CS, Drake and CCH.
- E-signatures and ID checks
- Accounting Unlimited includes unlimited e-signature requests and knowledge-based authentication for ID verification.
- Proposals
- SmartProposal is included on the Accounting plans for pricing and sending proposals; Accounting Unlimited allows unlimited quotes and proposals.
- Compliance tools
- Compliance Vault with WISP templates and scheduled deletion of old client files are part of Accounting Unlimited.
Plans
Karbon
Team$59
per user / month, billed yearly ($79 billed monthly)
Integrated email, workflow and to-do lists, time tracking and budgets, billing, payments and engagements. Monthly billing needs 4+ users.
Business$89
per user / month, billed yearly ($99 billed monthly)
Team features plus automatic client reminders, task automation and industry integrations. Monthly billing needs 4+ users.
EnterpriseCustom
Adds an enterprise platform, a dedicated Karbon contact, customization and unlimited usage limits.
SmartVault
Business Pro$65
per user / month, billed annually ($85 billed monthly)
Unlimited storage, clients and collaborators, branded portal and document requests. 3-user minimum.
Accounting Pro$65
per user / month, billed annually ($85 billed monthly)
Adds accounting and tax integrations, advanced security, tax folder templates and SmartProposal. 2-user minimum.
Accounting Unlimited$85
per user / month, billed annually ($110 billed monthly)
Adds unlimited e-signatures, ID verification, PDF form fillers, quotes and proposals, and file retention. 2-user minimum.
Common questions
Which is cheaper, Karbon or SmartVault?
As of Nov 13, 2026, Karbon is cheaper to start with: $59 a month for each person, against $65 a month for each person for SmartVault. Karbon starts at $59 per user / month, billed yearly ($79 billed monthly), and SmartVault starts at $65 per user / month, billed annually ($85 billed monthly).
Which has a free plan, Karbon or SmartVault?
As of Nov 13, 2026, neither Karbon nor SmartVault has a free plan. SmartVault has a free trial.
Which platforms do Karbon and SmartVault run on?
As of Nov 13, 2026, only Karbon lists iOS and Android apps. Both list a web app. A platform missing from a listing is one its maker's pages did not mention.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.