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Ask “how much does a business phone system cost?” and you’ll get a frustrating answer: it depends. A five-person office on softphones can pay under $1,000 a year; a hundred-person company on an enterprise platform can pay tens of thousands. The gap isn’t just headcount — it’s pricing models, contract terms, hardware, and fees that never make the pricing page.
This guide covers what small and mid-size businesses actually pay in 2026: cost ranges by company size, per-user pricing from the five major providers, how contracts change the real price, hardware, hidden fees, and where the money gets wasted. Pricing checked September 2026. Our research is documentation-based — published pricing, feature docs, and aggregated review scores — never hands-on testing.
How we researched
- Pricing: only figures published on vendors’ official pages; where a pricing page didn’t render or prices weren’t publicly viewable, we say so instead of quoting third-party numbers.
- Scope: cloud VoIP phone systems for small and mid-size businesses — the five providers we compare across TradeDial: Nextiva, Ooma, Dialpad, RingCentral RingEX, and Zoom Phone.
- Billing basis: we flag every price as annual or month-to-month, because the difference is large.
- What’s excluded: taxes, regulatory fees, hardware, and implementation costs — all real, none included in headline prices.
What does a business phone system cost in 2026? The quick answer
Before taxes, fees, and hardware, on annual billing:
- Micro business (1–5 users): about $180–$300 per user per year — $900–$1,500/year total for a 5-person team.
- Small business (6–25 users): about $4,500–$7,500/year for 25 users on entry tiers.
- Mid-size (25–100 users): about $18,000–$30,000/year for 100 users on entry tiers — less per user if you negotiate.
- Enterprise (100+ users): custom pricing; expect to negotiate off published rates.
Month-to-month billing typically costs 35–100% more than annual, depending on the provider. The cheapest headline price is rarely the cheapest total cost — contracts, hardware, and add-ons decide that.
Per-user pricing: the five providers compared
Published annual per-user pricing, checked September 2026:
| Provider | Entry tier | Per user/month (annual) | Month-to-month | Free trial |
|---|---|---|---|---|
| Nextiva | Core | $15 | ~35–50% more (exact prices unpublished) | Demo only |
| Dialpad | Standard | $15 | $27 | 14 days |
| RingCentral RingEX | Core | $20 | Not verified (pricing page is JavaScript-gated) | 14 days |
| Ooma Office | Essentials | $19.95 (no annual/monthly split published) | Not published (30-day money-back) | |
| Zoom Phone | — | Not verified — Zoom names its tiers but per-user prices didn’t render during our check | Not verified | |
Stepping up a tier roughly doubles the per-user cost at most providers: Nextiva Engage $25 and Scale $75; Dialpad Pro $25 annual ($35 monthly); RingCentral Advanced $25 annual; Ooma Pro $24.95 and Pro Plus $29.95. The mid tiers are where call recording, call queues, and multi-location features usually live — check which tier holds the features you need before comparing prices.
What a team actually pays: annual cost by company size
Published annual pricing for entry tiers (before taxes, fees, hardware), checked September 2026:
| Provider | Plan used | 5 users | 25 users | 100 users |
|---|---|---|---|---|
| Nextiva | Core, annual | $900 | $4,500 | $18,000 |
| Dialpad | Standard, annual | $900 | $4,500 | $18,000 |
| RingCentral RingEX | Core, annual | $1,200 | $6,000 | $24,000 |
| Ooma Office | Essentials | $1,197 | $5,985 | $23,940 |
| Zoom Phone | — | See Zoom’s site — per-user prices unverified | ||
Two notes on this table. First, these are entry-tier prices — if you need call recording or multi-location features, budget for the mid tier (roughly $25/user/month at most providers). Second, per-user pricing scales linearly, which punishes headcount growth: at 100 users the difference between $15 and $20 per user is $6,000 a year. Larger teams should negotiate — published prices are the starting bid, not the final one.
Per-user vs. per-line vs. platform: the pricing models that matter
Most cloud providers — Nextiva, Ooma, Dialpad, RingCentral — charge per user, per month: one price per person with a phone number. Simple and predictable.
Watch for variations that change the math:
- Per-line pricing charges per phone number or extension rather than per person. Fine for a front desk with one shared line; wasteful if every employee needs their own number. Ask which model a quote uses before comparing it to a per-user price.
- Platform or per-location pricing charges a flat fee covering the whole office or site. Vertical-specific platforms (dental, legal, and similar industry systems) often price this way — compare a platform fee against the combined cost of VoIP plus the other software it replaces, not against per-user VoIP alone. Our dental cost guide walks through this comparison in detail.
- Metered tiers (like some Zoom Phone plans) charge less per user but bill for minutes. Cheap for light callers; expensive for a sales team living on the phone. Model your actual call volume before choosing metered.
Contract terms that change the real price
The headline price is rarely the price you pay. Contract terms swing the total substantially:
- Nextiva: advertised prices require annual billing on a 12-month contract; month-to-month costs roughly 35–50% more. Exact monthly per-tier prices aren’t published; any early-termination fee wasn’t verified.
- Dialpad: Standard is $15/user/month annual vs. $27 monthly; Pro is $25 annual vs. $35 monthly. Canceling an annual plan early means owing the full remaining term with no refund of the unused portion, per Dialpad’s official Terms. Monthly plans can be canceled anytime.
- Ooma: “No Contract Necessary” on the three listed tiers — the lowest-commitment option here. Cancellation procedures and disconnection fees weren’t verified.
- RingCentral: claims “No Contracts” and “No charge for fast implementations,” but alongside annual paid-up-front pricing; exact annual obligations and early-termination terms weren’t verified.
- Zoom Phone: official Terms say payments are non-cancelable and non-refundable during the term; canceling stops auto-renewals. Exact per-user prices couldn’t be verified — Zoom’s pricing page didn’t fully render during our September 2026 check — so get current pricing from Zoom directly.
Hardware: desk phones, headsets, and the softphone shortcut
Service prices tell only part of the story. A typical small office needs desk phones for the front desk and common areas, plus headsets for people on calls all day. No verified official pricing exists for the handset models vendors sell, so get hardware quoted separately:
- The cheapest hardware strategy is no hardware: softphone apps on existing computers and smartphones replace desk phones entirely. Every provider here ships iOS/Android apps.
- Desk phones make sense for receptionists and shared areas. Budget per-phone, and ask whether the vendor provisions them or you buy your own compatible models.
- Headsets are the overlooked line item — a team of ten on calls all day needs ten decent headsets.
- RingCentral’s 14-day trial supports up to two desktop phones, and trial hardware must be returned within 21 days of cancellation to avoid charges — read the trial hardware terms before ordering.
Setup, porting, and onboarding fees
- Setup and onboarding: Nextiva states no setup fees with onboarding included; RingCentral advertises “no charge for fast implementations”; Dialpad is self-service with no setup fee stated. Ooma’s activation fee wasn’t verified on official pages. Ask on the sales call.
- Number porting: Ooma advertises FREE Number Transfer; Dialpad says local US and Canada ports are free (3–5 business days typical; international and fax ports may cost extra, and your old carrier may impose its own fees). RingCentral and Zoom publish official porting processes, but US fees weren’t verified; Nextiva supports porting on all plans but doesn’t state whether it’s free. Never cancel your old service until the port completes.
Hidden fees to budget for
- Taxes and regulatory fees: none of the headline figures include taxes, regulatory recovery fees, or surcharges, which vary by location and can add a meaningful percentage to the bill. Ask for an all-in quote.
- Early termination: Dialpad’s annual plans make you owe the full remaining term; Zoom’s payments are non-refundable during the term. Nextiva’s and RingCentral’s early-termination terms weren’t verified — get them in writing before signing.
- SMS limits and overages: business texting plans have message caps — confirm what’s included per user per month and what overages cost, especially if you send appointment reminders or marketing texts.
- Toll-free minutes: toll-free numbers often come with a limited minute bundle; overage rates apply. If you advertise a toll-free number heavily, price the overage.
- International calling: included US/Canada calling is standard; international rates vary wildly by provider. If you call abroad, compare per-minute rates, not just the plan price.
- Add-ons that used to be included: extra phone numbers, fax lines, additional storage for recordings, and advanced analytics are common upsells. Map the add-ons you’ll actually need before comparing plans.
How to save money without buying a worse system
- Pay annually — but only if you’ll stay. Annual billing saves 35–100% over monthly at most providers. The discount is only a deal if you won’t cancel mid-term; Dialpad’s annual terms, for example, make you owe the full term.
- Go softphone-first. Skipping desk phones saves the entire hardware budget. Start with apps on existing devices and buy phones only where they’re genuinely needed (front desk, conference rooms).
- Buy the right tier, not the top tier. Entry tiers cover calling, SMS, and mobile apps for most teams. Pay for the mid tier only if you specifically need what’s in it — usually call recording, call queues, or multi-location features.
- Count users honestly. Per-user pricing means every seat costs money. Part-timers who share a phone, seasonal staff, and conference-room phones are where the bill bloats — audit seats quarterly.
- Negotiate at 25+ seats. Published prices are list prices. Multi-year or high-seat-count deals routinely come in below them — but get every promise in the written contract, not the sales call.
- Use the no-contract option as leverage. Ooma’s no-contract plans are a real fallback; even if you prefer another provider, knowing you can walk makes annual-commitment pricing negotiable.
Frequently asked questions
What is the cheapest business phone system?
On published annual pricing (checked September 2026), Dialpad Standard and Nextiva Core tie at $15/user/month — $900/year for a 5-person team. Ooma Essentials ($19.95/user/month) is the cheapest no-contract option. Zoom Phone’s pricing couldn’t be verified from its official page, so it can’t be fairly ranked here.
Is month-to-month or annual billing better?
Annual billing is 35–100% cheaper at most providers — but it locks you in. Dialpad’s annual plans charge the full remaining term if you cancel early; Zoom’s term payments are non-refundable. Go annual only when you’re confident in the provider; use monthly (or Ooma’s no-contract plans) while you’re still evaluating.
Do I need desk phones, or can everyone use an app?
Everyone can use an app — all five providers ship iOS/Android softphones, and it’s the cheapest hardware strategy. Buy desk phones selectively: front desk, conference rooms, and anywhere a shared phone makes sense. Get hardware quoted separately from service.
What hidden fees should I watch for?
Taxes and regulatory fees (not in headline prices), early-termination charges on annual plans, SMS overage, toll-free minute overage, international calling rates, and add-ons like extra numbers or fax lines. Ask for an all-in first-year quote including taxes.
Can I keep my business phone number?
Yes — all five providers support number porting. Ooma advertises free transfers; Dialpad’s local US and Canada ports are free. Don’t cancel your old service until the port finishes.
How much does it cost to switch providers later?
The switch itself is usually cheap (porting is often free) — the cost is in the contract you signed. Annual plans with full-term cancellation liability (Dialpad) or non-refundable terms (Zoom) are what make switching expensive. That’s the real reason to read the termination clause before the pricing table.
The bottom line
A 5-person business should budget $900–$1,500/year for cloud VoIP on annual billing, before taxes, fees, and hardware — $4,500–$7,500/year at 25 users. Dialpad Standard and Nextiva Core tie for the cheapest published annual price ($15/user/month); Ooma is the cheapest no-contract route; RingCentral sits a tier higher at $20; Zoom Phone’s pricing couldn’t be verified from its official page. Monthly billing can cost 35–100% more, annual contracts can carry real early-termination costs, and taxes, hardware, and add-ons are never in the headline price. Get the termination terms in writing, ask for an all-in quote, and buy the tier that holds the features you need — not the tier above it. See our dental-specific cost guide for a vertical-pricing worked example.
Related guides
- How Much Does a Dental Phone System Cost?
- Nextiva vs Ooma for Dental Offices
- Best Phone Systems for Insurance Agencies
Last updated: September 2026. Pricing was checked on vendors’ official pages in September 2026 and changes frequently — confirm current pricing before you buy. Our research is documentation-based (published pricing, feature docs, aggregated review scores), not hands-on testing.