Flat-price arithmetic

Price the inbox sprawl.

Estimate what per-seat workspaces and scattered forwarding services cost once every domain has its own mail identity.

Folio's free email cost calculator estimates the annual or monthly cost of running business email across many domains. It compares a Workspace-style per-seat model, a scattered forwarding-provider stack, and Folio's flat single-operator tiers so portfolio entrepreneurs can see when inbox sprawl becomes a real bill.

Updated 24 July 2026 (2026-07-24)

Your estate

Calculating your estimate…

What multiple email domains typically cost

For a single business, hosted email runs about $7 per user per month on a suite like Google Workspace. The bill changes shape when one operator runs several companies: keeping each entity in its own Workspace tenant means a separate subscription per company, so five ventures start at $35 a month before any second seat. Flat multi-domain hosting prices the operator instead — Folio's Solo plan covers 3 domains for $3.50 a month, and Studio covers 10 for $15.

Monthly cost by hosting model at 1, 5, and 10 domains. Folio plan prices as published on the pricing page; competitor figures are typical list prices — confirm current rates before you commit.
Hosting model1 domain5 domains10 domains
Google Workspace, one tenant per company$7$35$70
Mixed forwarding stack (~$3/domain)$3$15$30
Folio, flat per operator$3.50 (Solo)$15 (Studio)$15 (Studio)

One Workspace seat can host many domains as secondary domains — the tenant-per-company row models operators who keep entities in separate tenants, not a per-domain fee. Forwarding stacks receive mail but need another product to reply as each brand.

Questions the calculator should settle

Is this email cost calculator free?

Yes. The calculator is free, does not require a login, and estimates costs from the domain count, seats per domain, and extra forwarding providers you enter.

Does Google Workspace charge per domain?

No. Workspace bills per user, and one seat can host many domains as secondary domains. The calculator's separate-tenant model is for operators who keep entities separated across tenants, not a claim that Workspace charges a per-domain fee.

When does flat multi-domain pricing make sense?

Flat pricing usually makes sense when one person reads mail for several brands, LLCs, stores, or side projects and does not need a full collaboration suite for every domain.

What should I check before moving providers?

Run a domain health check first. MX, SPF, DKIM, and DMARC posture decide whether the migration will improve deliverability or simply move the same DNS problem to another provider.