CallataGuidesBusiness phone system for offices of certified public accountants in Houston, TX
Offices of certified public accountants in the Houston-Pasadena-The Woodlands, TX metro area: 993 establishments in 2023, the local area codes, and what phone service costs a 15-person team.
- Establishments
- 993CBP 2023
- Employees
- 14,647mid-March 2023
- Per 100k residents
- 12.7U.S. 16.2
- Rank
- 9th of 864areas by count
The accounting firm market in Houston, TX
The Census Bureau's 2023 County Business Patterns lists 993 establishments classified as Offices of Certified Public Accountants (NAICS 541211) in the Houston-Pasadena-The Woodlands, TX metro area. They employed 14,647 people in mid-March and paid $1.7 billion in annual payroll. By establishment count the area is 9th out of 864 areas with published figures for offices of certified public accountants.
Measured against its 7.8 million residents (2024 estimate), the area has 12.7 offices of certified public accountants per 100,000 people; the U.S. rate is 16.2, so Houston, TX is 21.3% below the national figure. The average establishment here has 14.8 employees, compared with 11.0 nationally. Payroll per employee comes to $112,705, 11.9% above the national $100,691.
| Measure | Houston, TX | Texas | United States |
|---|---|---|---|
| Establishments | 993 | 4,096 | 55,052 |
| Mid-March employees | 14,647 | 48,861 | 604,209 |
| Annual payroll | $1,650,787,000 | $4,914,463,000 | $60,838,681,000 |
| Employees per establishment | 14.8 | 11.9 | 11.0 |
| Payroll per employee | $112,705 | $100,580 | $100,691 |
| Establishments per 100,000 residents | 12.7 | 13.1 | 16.2 |
Census County Business Patterns 2023 (mid-March employment; annual payroll). Employees and payroll flagged high-noise are shown but not used in the text. Residents: Census Vintage 2024 estimates.
Team sizes at offices of certified public accountants in Houston, TX
Of the offices of certified public accountants in Houston, TX that had employees in March 2023, 70.7% had fewer than five (the U.S. share is 64.8%). 87.6% had fewer than ten. For a business of a few people, phone coverage is a staffing question as much as a technology one: someone has to be free to pick up, or the call needs somewhere sensible to go.
| Employment size | Establishments | Share | U.S. share |
|---|---|---|---|
| 1–4 employees | 701 | 70.7% | 64.8% |
| 5–9 employees | 167 | 16.9% | 18.8% |
| 10–19 employees | 62 | 6.3% | 9.2% |
| 20–49 employees | 31 | 3.1% | 4.3% |
| 50 or more employees | 30 | 3.0% | 2.9% |
Employment-size classes count establishments by mid-March 2023 employment. Establishments with no March employees are excluded from the size classes, so shares are of establishments with employees. Source: Census County Business Patterns 2023.
Calls an accounting firm in Houston, TX has to catch
CPA firms see sharp call peaks around filing deadlines, when the same small staff answers questions from many clients at once. Capturing every call and routing it to the right preparer keeps deadline weeks manageable. That holds for offices of certified public accountants in Houston, TX as much as anywhere.
A few of the calls that come in to offices of certified public accountants in Houston, TX:
- A bank calls to verify a client's financial statements.
- A client calls to ask whether a missing tax form has been received.
- A small business owner calls to ask about bookkeeping help.
Texting clients
Firms text document reminders and let clients know when returns are ready to sign.
Texts sent from a local business number in Houston, TX have to be registered with carriers first (10DLC); on Callata that is a one-time $49 fee, after which the whole team can text from the shared number.
What a phone system costs an accounting firm in Houston, TX
The average accounting firm in Houston, TX has 14.8 employees, so a 15-person team is a reasonable benchmark. On a per-user plan that headcount sets the bill: $374.25 a month on Ooma Office Pro or $450.00 on RingCentral RingEX Core at list price (checked September 28, 2026). Callata comes to $299.00 a month for 15 users ($99 a month with 5 users included, then $20 per additional user), below both.
Over a year, that is $1,812 less than RingCentral for an accounting firm in Houston, TX of that size. Annual contracts lower some competitors' prices, so compare the plan you would actually sign.
| Provider (plan) | Pricing basis | Per month | Per year |
|---|---|---|---|
| Callata (Callata Office) | $99 incl. 5 users, $20 per extra user | $299.00 | $3,588.00 |
| Quo (Starter) | $19.00 per user | $285.00 | $3,420.00 |
| Nextiva (Core) | $23.00 per user | $345.00 | $4,140.00 |
| Ooma (Office Pro) | $24.95 per user | $374.25 | $4,491.00 |
| Dialpad (Standard) | $27.00 per user | $405.00 | $4,860.00 |
| RingCentral (RingEX Core) | $30.00 per user | $450.00 | $5,400.00 |
Competitor prices are each vendor's published month-to-month list price per user for its lowest plan that includes business calling and texting, checked September 28, 2026: Quo Starter $19, Nextiva Core $23, Ooma Office Pro $24.95 (Essentials excludes texting; one-time $29.95 activation not included), Dialpad Standard $27, RingCentral RingEX Core $30 ($20 billed annually). Prices exclude taxes and fees and may change; annual contracts lower some competitors' prices.
Local area codes for offices of certified public accountants in Houston, TX
NANPA records place the exchanges of the area's named cities and towns in 8 area codes. 713 has the most, with 747 of 2,385 exchanges (31%). A local number lets clients in Houston, TX call without dialing out of area. Callata includes up to 3 local numbers, and which numbers are open in an area code depends on carrier inventory when you choose.
| Area code | Exchanges | Time zone | In service since | Overlay with |
|---|---|---|---|---|
| 713 | 747 | Central | 1947 | 281, 346, 621, 832 |
| 832 | 547 | Central | 1999 | 281, 346, 713 |
| 281 | 393 | Central | 1996 | 346, 621, 713, 832 |
| 346 | 382 | Central | 2014 | 281, 621, 713, 832 |
| 936 | 144 | Central | 2000 | none |
| 979 | 100 | Central | 2000 | none |
| 409 | 71 | Central | 1982 | none |
| 806 | 1 | Central | 1957 | none |
Exchanges are NANPA-assigned central office codes (NPA-NXX) in the rate centers matched to the area's named places. Source: NANPA utilized code and NPA reports.
What offices of certified public accountants in Houston, TX get with Callata
Callata Office costs $99 per month for up to 5 people, and each additional user is $20 a month. That covers up to 3 local numbers, calling from a browser or your cell, transcribed voicemail, recorded calls with AI summaries, after-hours routing and E911 on each number.
Porting a number you already use in Houston, TX is free, and business texting is available once the carrier registration (10DLC) is approved; the registration carries a one-time $49 fee. Which specific numbers are open in a given area code depends on carrier inventory at the time you sign up.
AI agents are optional: an AI receptionist or scheduler can pick up when the team is busy or closed, take a message, send a text or email, or transfer the call. They draw on prepaid AI minutes ($0.25/minute), disclose that they are AI, and outbound AI calls require prior consent and are limited to 8am–9pm.
Avoid sending taxpayer identification numbers or full financial details by text.
Frequently asked questions
How many offices of certified public accountants are there in Houston, TX?
Census County Business Patterns counted 993 offices of certified public accountants in the Houston-Pasadena-The Woodlands, TX metro area in 2023. They employed 14,647 people in mid-March.
What does a business phone system cost for a 15-person accounting firm?
At month-to-month list prices checked September 28, 2026, 15 users cost $450.00 a month on RingCentral RingEX Core and $374.25 on Ooma Office Pro. On Callata, $99 a month with 5 users included, then $20 per additional user, the same team pays $299.00.
What area code should an accounting firm in Houston, TX use?
Area code 713 has the most assigned exchanges among the area's named places, followed by 832 and 281. If you already have a local number, you can port it to Callata for free.
Can an AI receptionist answer calls for an accounting firm?
Yes. Callata's optional AI agents can answer when the team is busy or closed, take a message, text, email or transfer the call. They disclose that they are AI and are billed from prepaid AI minutes at $0.25 per minute. Avoid sending taxpayer identification numbers or full financial details by text.