5 Cheapest Business VoIP Providers in 2026

Switching your business to a hosted VoIP platform is one of the smartest cost moves a small company can make in 2026. Traditional landlines carry per-minute charges, hardware rental fees, and rigid contracts that simply do not scale well. A modern cloud phone system flips that model: you pay per user each month, get feature-rich calling tools built in, and can add lines without calling a technician.

But not every cheap VoIP plan is actually a good deal. Some providers advertise low headline rates while burying number-porting fees, international calling surcharges, and compulsory annual billing in the small print. This guide cuts through that noise with verified pricing and honest trade-offs.

Best Cheap Business VoIP Providers at a Glance

After testing and pricing verification across the hosted VoIP market, these five providers consistently offer the lowest total cost for small and mid-sized businesses in 2026:

• Zoom Phone — Best for teams already using Zoom for video
• Google Voice for Business — Best for Google Workspace users
• Grasshopper — Best for solo operators and micro businesses
• Vonage Business — Best for growing teams needing integrations
• RingCentral Core — Best entry-tier plan from an enterprise-grade provider

How We Ranked the Providers

Every provider on this list was evaluated across six criteria: advertised monthly price per user, billing flexibility (monthly versus annual), included features on the base plan, number of users supported, hidden fee transparency, and overall reliability based on uptime disclosures. Vendors cannot pay to influence this ranking.

The 5 Cheapest Business VoIP Providers

1. Zoom Phone

Zoom Phone starts at around $10 per user per month on its US and Canada metered plan, making it one of the most accessible entry points in the cloud phone system market. Unlimited domestic calling bumps the price to roughly $15 per user per month. If your team already lives inside Zoom for meetings, adding Zoom Phone creates a genuinely unified communication environment with minimal learning curve. The admin portal is clean, number porting is straightforward, and voicemail transcription is included at no extra cost.

2. Google Voice for Business

Google Voice for Business starts at $10 per user per month on the Starter plan (capped at 10 users), scaling to $20 for the Standard plan with unlimited users. For teams built around Google Workspace, this is the natural cheapest VoIP option because it integrates directly with Gmail, Google Calendar, and Meet without any third-party connector needed. The trade-off is limited advanced features: there is no built-in CRM integration or call recording on the entry plan.

3. Grasshopper

Grasshopper takes a different pricing approach. Rather than charging per user, it charges per phone number. Plans start at $14 per month (billed annually) for one number and three extensions. For a sole trader or a very small team that just needs a professional business phone number, Grasshopper is the cheapest VoIP solution by a significant margin. It is not a full unified communications platform, but for basic call routing, voicemail, and business texting, it covers the essentials neatly.

4. Vonage Business Communications

Vonage Business starts its Mobile plan at approximately $13.99 per user per month when billed annually. This tier includes unlimited domestic calling, SMS, and team messaging. Vonage earns its place here because of a strong app experience and over 50 standard features even on the entry plan. The platform also supports more than 20 CRM integrations, which matters for small sales teams who need their business phone service connected to their pipeline tools.

5. RingCentral Core

RingCentral is typically associated with enterprise-scale pricing, but its Core plan starts at $20 per user per month when billed annually for teams of two or more. That price point includes unlimited domestic calling, business SMS, and AI-powered call notes, features that rival platforms charge extra for. RingCentral Core is the most expensive entry on this list, but the reliability, uptime record, and depth of integrations justify it for teams that expect to grow quickly.

Pricing Comparison Table

Feature Comparison

Cheap VoIP plans are not all built equal when it comes to what is actually bundled at the base price. Here is how the five providers stack up on the features that matter most for a small business phone system:

• Unlimited domestic calls: Vonage, RingCentral Core, and Google Voice Standard all include this. Zoom Phone requires the $15 tier. Grasshopper includes unlimited calls to US and Canada on all plans.
• Business SMS: All five providers include SMS on their entry plans.
• Voicemail transcription: Zoom Phone, RingCentral Core, and Google Voice include this. Vonage charges for it on the base tier.
• CRM integrations: RingCentral Core and Vonage lead here. Google Voice and Grasshopper offer minimal third-party connectivity on entry plans.
• Mobile and desktop apps: All five providers deliver solid mobile apps for iOS and Android.
• Video calling: Zoom Phone and RingCentral Core are the strongest here. Google Voice delegates video to Google Meet.

Hidden Costs to Consider

A low headline price can disguise a higher real-world VoIP cost once you factor in the extras most providers do not advertise upfront.

• Number porting fees: Moving your existing business number to a new provider is often charged separately. Zoom Phone and RingCentral include this free; Grasshopper charges a one-time fee.
• International calling: None of the five plans above include international minutes in the base price. Rates vary significantly per destination, so if your team calls internationally with any regularity, calculate this separately before committing.
• Hardware: Cloud phone systems work via app on existing devices, but if you want desk phones, expect to spend $80 to $250 per unit from compatible VoIP hardware brands.
• Annual billing lock-in: Most advertised prices require annual commitment. Monthly billing typically costs 15 to 25 percent more per user.
• Taxes and regulatory fees: US VoIP bills include federal and state telecommunications surcharges that can add $2 to $5 per user per month to your invoice.

Which Provider Is Best for Your Business Size?

1 to 5 employees

Grasshopper or Google Voice Starter are the strongest picks. Both keep monthly spend minimal without forcing per-user cost scaling across a large team.

6 to 25 employees

Zoom Phone or Vonage Business hit the right balance. You get full-featured hosted VoIP with real scalability at a per-user cost that stays manageable as you hire.

25 or more employees

RingCentral Core becomes genuinely competitive at scale, especially because enterprise-level reliability, compliance tools, and integration depth start to matter more as teams grow.

Frequently Asked Questions

What is the cheapest VoIP plan for a small business in 2026?

Google Voice Starter and Zoom Phone metered both start at $10 per user per month, making them the lowest entry price points in the business VoIP market. Grasshopper at $14 flat is the best value if you have fewer than three users and just need a professional number with extensions.

Is a hosted VoIP system reliable enough for a primary business phone?

Yes, provided your internet connection is stable. Most top VoIP providers publish 99.99 percent uptime SLAs. For critical calling environments, running a secondary broadband line as backup is a sensible precaution.

Do I need new phones to switch to a cloud phone system?

Not necessarily. All five providers on this list offer softphone apps for desktop and mobile, so your existing computers and smartphones can handle calls from day one. Physical desk phones are optional.

Can I keep my existing business number when switching VoIP providers?

In most cases, yes. Number porting is supported by all five providers listed here, though timelines typically range from three to ten business days depending on your current carrier.

Ready to Compare VoIP Plans Side by Side?

Choosing the right business phone service is about more than finding the lowest advertised price. It means matching the right feature set to your team size, your call volume, and the tools you already use. The five providers above represent the best starting points in 2026 for any small business that wants real cloud phone functionality without overpaying.

Compare Bazaar's VoIP comparison hub gives you side-by-side scoring, verified pricing, and unbiased shortlists so you can narrow your options before speaking to a single salesperson. Start there, save time, and buy with confidence.