
Duck Tax alternatives
Tools that do what Duck Tax does, found by what they say they do rather than by shelf. Among the equally alike, the most used come first. Each line says how it differs from Duck Tax.
Read 2026-10-27 · Duck Tax itself: From $49.50/mo
With a free plan or free to use: PromptFiling, Salesforce, Signed.
- #1

PromptFilingSalesMCP · open
Prepares and submits dormant company accounts to Companies House, with the user approving every figure before anything is filed.
Same job
Little sign of useActiveFrom ≈ $27 once - #2

AvalaraSalesMCP · sign-in
Calculates sales tax, VAT and excise at checkout or invoicing, files returns, manages exemption certificates and classifies products for tariffs.
Costs moreAlso: Chat assistant, Data extraction
2.6MActiveFrom $69/mo - #3

ZoomInfoSalesMCP · sign-in
Sales intelligence platform with a database of companies and contacts, buying signals and prospecting tools.
More widely used
7.3MActiveContact sales2000 - #4

SalesforceSales
Hosts a CRM that stores accounts, contacts, leads and opportunities, with add-on clouds for customer service cases, marketing campaigns and commerce.
Also: AgentsMore widely used
6.7MActive1999 - #5

RocketReachSalesMCP · sign-in
Looks up email addresses and phone numbers of professionals by name, company or LinkedIn profile in a searchable contact database with a browser extension.
More widely used
4.1M - #6

SignedSalesMCP · open
Tracks angel holdings, valuations and returns, reading forwarded founder updates and decks to refresh positions automatically.
CheaperAlso: Analytics, Workflow automation
59.6kActiveFrom $29/mo - #7

ZohoSales
Suite of 50+ cloud applications for sales, accounting, customer service, email, and custom app building.
More widely used
1.2M1996 - #8

ProspeoSalesMCP · sign-in
Finds and verifies professional email addresses and mobile numbers from a name, company domain or LinkedIn profile, via web app, extension and API.
More widely used
355k - #9

OnePageCRMSalesMCP · sign-in
Tracks sales follow-ups, deals and email sends for small-business contacts in a cloud CRM with Gmail, Outlook and calendar sync.
Also: Workflow automationMore widely used
61.5kActiveFrom $9.95/user/mo2010 - #10

Seamless.AISalesMCP · sign-in
Finds verified business contacts and automates sales outreach across email, calling, and social channels.
More widely used
283k
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How this list is made: the words Duck Tax is described with (what it does, for whom, what it is used for) are matched against every tool in the Atlas. A tool on the same shelf, or doing the same kind of work, counts for a little more. Nothing here is paid for.
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