Karbon alternative for engagement and billing drafts
Karbon runs firm workflow per user. Omni drafts the letters and chases around it, with a flat Pilot price and partner approval.
Karbon Team is $59 per user a month billed annually. Omni covers engagement letters, proposals, billing, deadlines, and time records as drafts.
Compared on October 21, 2026 from public information. Prices change, so check each vendor page before you decide.
Which one fits
Pick Omni
you want client-facing drafts prepared with approval, without adding per-user seats for the chase work.
Pick Karbon
you need shared workflow, triage, and capacity planning for the whole firm.
Use both
keep Karbon as the workflow system. Omni drafts sit beside it, and we check connection scope during setup.
Side by side
| Job | Omni Studio | Karbon |
|---|---|---|
| Firm workflow | PartlyDrafts, not a workflow system | YesPractice workflow is its core |
| Engagement letters | YesDrafted for partner approval | YesEngagements listed on pricing |
| Proposals | YesDrafted before anything goes out | PartlyCovered through engagements |
| Billing and reminders | YesNora drafts overdue reminders | YesBilling and payments included |
| Deadlines | YesDeadlines and penalty exposure tracked | YesWorkflow dates and reporting |
| Time records | YesA time ledger for billable work | YesTime and budgets by plan |
| Client portal | NoPortal stays in your practice tool | PartlyClient tools vary by plan |
| E-signature | PartlyNeeds your own DocuSign account | PartlyCredit packs from $100 |
| Books | PartlyBooks stay in QuickBooks | PartlyAccounting stays in your ledger app |
| Approval before sending | YesLetters and invoices wait for approval | NoStaff send from the workflow |
| Price shape | YesFlat Pilot $497 a month | PartlyPer user, $59 to $99 by tier |
| Free trial | Yes14 days on sample data, no card | PartlyDemo-led plans page |
Karbon facts come from its own public pages, dated in Sources. Omni facts come from omni.studio. Yes means the job is covered. Partly means part of the job stays in the other tool.
What it costs
Omni starts with a free 14-day workspace on sample data, no credit card. Pilot is $497 a month. Custom Build is from $4,500 a month. Enterprise: talk to a person. As on the pricing page. AI usage is included in every plan.
Karbon: Team $59 per user a month billed annually ($79 monthly). Business $89 ($99 monthly). Enterprise by quote. Read October 21, 2026. See Sources.
What the front-office work is worth a month
- Missed calls turned into jobs (profit)About 0.1 extra jobs a month$15
- Staff hours taken onAbout 117 hours a month across front desk, scheduling, admin, and billing$3,413
- Agency work replacedSEO, reviews, social, ads, and content$1,143
- Apps and tools retired$879 a month of tools today$176
- Answering service replaced$240
- Owner time back17 hours a month at $75 an hour$1,299
Estimated value a month$6,286
Of that, cash a month$1,574
Omni Pilot a month$497
Pays for itselfMonth 1
- Missed calls turned into jobs (profit)About 0.3 extra jobs a month$38
- Staff hours taken onAbout 286 hours a month across front desk, scheduling, admin, and billing$8,624
- Agency work replacedSEO, reviews, social, ads, and content$2,370
- Apps and tools retired$2,198 a month of tools today$440
- Answering service replaced$640
- Owner time back26 hours a month at $75 an hour$1,949
Estimated value a month$14,060
Of that, cash a month$3,488
Omni Pilot a month$497
Pays for itselfMonth 1
- Missed calls turned into jobs (profit)About 0.6 extra jobs a month$91
- Staff hours taken onAbout 572 hours a month across front desk, scheduling, admin, and billing$17,248
- Agency work replacedSEO, reviews, social, ads, and content$4,470
- Apps and tools retired$5,274 a month of tools today$1,055
- Answering service replaced$1,280
- Owner time back35 hours a month at $75 an hour$2,598
Estimated value a month$26,742
Of that, cash a month$6,896
Omni Pilot a month$497
Pays for itselfMonth 1
Estimate only, for a accounting firm business. It is not a promise or a customer result. Staff hours count as freed capacity, not cash, unless you cut hours. Custom Build from $4,500 a month changes the payback month.
Assumptions and sources for this estimate
The math is the cautious case from Omni value model v3 (model.py, October 21, 2026). Industry defaults on this page: 17 inbound calls a week for a small business, 10 percent missed, an average first job of $250, a 58 percent gross margin, and $879 a month of tools today. Size changes call volume, staff counts, agency spend, and tool spend by the model factors (small 1, mid-size 2.5, multi-location 6 for calls and tools).
Pay rates are US Bureau of Labor Statistics medians (May 2025): receptionists $18.27 an hour, dispatchers $24.20, administrative assistants $22.86, and bookkeeping clerks $24.36, loaded by 1.429 because BLS Employer Costs for Employee Compensation (June 2026) puts wages at 70 percent of private employer compensation cost. Agency defaults follow the model sources: SE Ranking and Ahrefs SEO pricing surveys, Sprout Social, WebFX, and ClicksGeek (vendor estimates, 2023 to 2026). An owner hour is valued at $75. Omni prices are from the pricing page. Your numbers will differ. Run your own on the cost calculator.
One sample job: an invoice 34 days past due
AI employee Nora drafts the reminder. Sending waits for partner or manager approval.
Follow up on invoices that are more than 30 days past due.
Switching is easy
Try one job first
Open the free 14-day workspace on sample data. No credit card, and nothing reaches your customers.
Keep Karbon or move records
We connect your Karbon account during setup, or import client records, billing history, and deadline lists by CSV. Pilot includes setup and import help.
Approve the first drafts
AI employees draft. You approve each message and change until you trust the pattern.
Details
Details: tool prices, where each side is stronger, and what stays with you
Where Karbon is stronger today
Practice management built for accounting firms: shared workflow, email triage, capacity views, billing, payments, and engagements with per-user pricing and an enterprise tier (karbonhq.com/pricing, read Oct 21, 2026). Omni does not replace firm workflow.
Where Omni is different
Named AI employees draft the client-facing routine work: engagement letters, proposals, overdue reminders, and deadline lists. Nothing is signed or sent for you. Your books stay in QuickBooks, which we connect during setup.
Frequently asked questions
Does Omni replace Karbon?
No. Workflow and client management stay in your practice tool. Omni covers engagement letters, proposals, billing follow-ups, deadlines, and time records as drafts for approval.
Does Omni connect to Karbon?
We check the apps, permissions, and records your workflow needs during setup. 1,500+ apps are available through Composio. A listed app does not confirm every action for your account.
What does Karbon cost for a five-person firm?
Team is $59 per user a month billed annually, so five users run $295 a month before e-signature credits and payment fees (karbonhq.com/pricing, read Oct 21, 2026). Omni Pilot is a flat $497 a month.
Can an AI employee sign or file for us?
No. AI employees draft. Signing, filing, sending, and spending wait for your approval, and every decision is logged.
Sources
- Karbon pricing, read October 21, 2026.
- Omni pricing, read October 21, 2026.
- Omni finance workspace, read October 21, 2026.
Compared on October 21, 2026 from public information. Competitor facts come from each vendor's own public pages. Omni facts come from omni.studio. Spot something out of date? Tell us on the contact page.
Try one job first
Run one workflow in a free workspace for 14 days. No credit card.