Short answer: most traditional answering services bill $1–$2 per minute, which works out to roughly $200–$600 per month for a small business with moderate call volume. Human virtual receptionist services run $200–$1,000+ per month. AI answering services are typically flat-rate from around $29–$300 per month. But the sticker rate is rarely what decides your bill — billing increments, monthly minimums and surcharges do.
This guide breaks down every pricing model you'll encounter, the fees vendors don't lead with, and how to calculate what an answering service will actually cost your business.
The short version: what each option costs
| Option | Typical cost | Best for |
|---|---|---|
| Traditional answering service (per-minute) | $0.85–$2.00/min, often $200–$600/mo | Low, unpredictable volume |
| Per-call answering service | $1.50–$3.00+ per call | Short, simple calls |
| Dedicated virtual receptionist (human) | $200–$1,000+/mo | High-touch, complex calls |
| AI answering service / AI receptionist | Flat $29–$300/mo (ours: $49–$997) | 24/7 coverage, routine call volume |
The four pricing models, explained
1. Per-minute billing
The most common model for traditional answering services. You buy a monthly bundle of minutes (say 100, 250 or 500) and pay an overage rate beyond it. Advertised rates commonly land between $0.85 and $2.00 per minute, with the lower rates reserved for larger prepaid bundles.
The catch is the billing increment. Many services round every call up to the next 30 or 60 seconds — and some bill the time the operator spends on hold, transferring, or writing up the message afterwards. A 40-second call can be billed as a full minute; a 61-second call as two. Across a few hundred calls a month, that rounding alone can add 20–30% to your invoice.
2. Per-call billing
You pay a flat fee per call handled, commonly $1.50–$3.00 and up. It's simpler to forecast, and it removes the rounding problem — but it punishes you for short calls. If half your calls are 20-second "what time do you close?" questions, you're paying full freight for each one.
3. Per-receptionist / dedicated agent
You're effectively renting a person's time, typically $200–$1,000+ per month depending on hours and exclusivity. You get consistency and genuine human judgement. You also get their limits: business hours unless you pay for coverage, one call at a time, and holidays at premium rates.
4. Flat-rate AI with a minute allowance
An AI receptionist charges a predictable monthly fee that includes a block of minutes, with a low per-minute rate beyond it. There's no operator to round up to, no night-shift premium, and no cap on simultaneous calls. Our own plans run $49 to $997 per month with a flat $0.10/min overage on every tier.
The fees that inflate your bill
- Setup / onboarding fees — commonly $0–$100+, sometimes waived on annual contracts.
- Billing increments — the 30- or 60-second rounding described above. Ask explicitly.
- Monthly minimums — you pay for the bundle whether or not you use it. Unused minutes rarely roll over.
- After-hours, weekend and holiday surcharges — often the single biggest surprise. Some services charge premium rates for exactly the hours you bought the service to cover.
- Overage rates — frequently far higher than your bundled rate. A busy month can cost double.
- Non-productive time — some contracts bill hold time, transfers and wrap-up.
- Contract length — annual lock-ins with early-termination fees are still common.
Three realistic monthly scenarios
A solo practice: ~100 calls/month, ~2 min each (200 minutes)
- Per-minute at $1.50 with rounding: roughly $300–$375
- Per-call at $2.00: roughly $200
- Flat-rate AI: $49 (200 minutes sits inside the entry allowance)
A growing home-services business: ~400 calls/month, ~2.5 min each (1,000 minutes)
- Per-minute at $1.25 with rounding: roughly $1,250–$1,500
- Dedicated human receptionist: $600–$1,000+, business hours only
- Flat-rate AI: $197 (2,000-minute allowance)
A multi-location operation: ~1,500 calls/month (4,000+ minutes)
- Per-minute at $1.00: $4,000+, before surcharges
- Flat-rate AI: $497 (5,000-minute allowance, unlimited simultaneous calls)
The pattern is consistent: metered human services scale linearly with your success, while flat-rate AI does not. The busier you get, the wider the gap.
Human vs AI: what you're actually buying
| Traditional answering service | AI answering service | |
|---|---|---|
| Pricing | $1–$2/min + surcharges | Flat monthly, low overage |
| Answer speed | Hold queues at peak and overnight | Under one second |
| Books appointments | Usually takes a message | Books live in your calendar |
| Simultaneous calls | Limited by staffing | Unlimited |
| Nights, weekends, holidays | Premium rates | Included |
| Complex, emotional calls | Genuine human judgement | Warm-transfers to your team |
We wrote a fuller side-by-side in AI receptionist vs answering service vs virtual receptionist, including where a human service still genuinely wins.
How to calculate your own cost
Use this before you talk to any vendor:
(Monthly calls × average call length in minutes) × per-minute rate × rounding factor + monthly minimum shortfall + surcharges = your real cost
Two inputs people get wrong: average call length is usually longer than owners guess (2–4 minutes is typical once greeting, intake and wrap-up are counted), and the rounding factor is roughly 1.2–1.3× on 60-second increments with lots of short calls.
Then weigh it against what those calls are worth. Our missed-call ROI calculator puts a dollar figure on the calls you're currently losing — which is usually the larger number. We broke that math down in the true cost of missed business calls.
Questions to ask before you sign
- What is the billing increment — 1 second, 30 seconds or 60 seconds?
- Do you bill hold time, transfers or after-call wrap-up?
- What is the overage rate once I pass my bundle?
- Are nights, weekends and holidays charged at a premium?
- Is there a monthly minimum, and do unused minutes roll over?
- Is there a setup fee or a contract term with an early-termination penalty?
- Can the service actually book into my calendar, or only take messages?
Frequently asked questions
How much does an answering service cost per month?
For a small business with moderate volume, expect roughly $200–$600 per month on a traditional per-minute service, $200–$1,000+ for a dedicated human receptionist, or a flat $49–$300 for most AI answering services. Your actual figure depends on call volume, average call length and how the vendor rounds.
Is an answering service worth the cost?
It depends on what a captured call is worth to you. If your average customer is worth a few hundred dollars, recovering a single missed call a month can cover an entire AI plan. The calculation gets harder with metered human services, because the cost climbs at exactly the moment your call volume — and revenue — grows.
Why is AI cheaper than a traditional answering service?
There's no per-minute labour to bill. An AI agent handles unlimited simultaneous calls at the same cost, doesn't need a night shift, and doesn't charge holiday premiums — so vendors can price it flat instead of metered. For routine calls (scheduling, hours, pricing, intake) that's most of the workload.
Are there answering services with no monthly minimum?
Yes, though they're less common in the traditional space. Flat-rate AI plans typically have no minimum beyond the plan fee itself — you pay the monthly rate and a defined overage, with no commitment to consume a bundle.
The bottom line
Compare vendors on total monthly cost at your real volume, not the advertised per-minute rate. Ask about increments, minimums and surcharges before anything else. And factor in what each model actually delivers — a message taken at 2am is worth far less than an appointment booked at 2am.
See our flat-rate plans from $49/month, or work out what missed calls are costing you with the ROI calculator.
Related reading
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