Accounting firms in Bangkok: what they charge, and where you file
Bangkok holds both markets at once. Thai language firms here publish monthly bookkeeping from 1,000 to 10,000 baht and company registration around 8,900 to 13,900 baht, while firms selling in English publish 14,500 to 26,900 a month and 19,000 to 70,000 to register. One Bangkok firm publishes both sides of that gap on its own price page.
Bangkok is also the only place where you have to work out which of six registration offices and which of thirty tax offices is yours. Both are decided by your registered address, and both are below.
256 prices published by 53 firms serving Bangkok · Last reviewed 29 August 2026
Monthly bookkeeping, Thai firms
1,000 to 10,000 / month
Banded by document count. The largest Bangkok tables run to 200 documents.
Monthly bookkeeping, English
14,500 to 26,900 / month
Same statutory filings, transaction capped, English reporting.
Company registration
8,900 to 70,000 one off
The widest single spread in the country, and ownership is most of it.
Both markets, in the same city
Everywhere else in Thailand you see one market clearly and the other faintly. In Bangkok both are fully present and fully visible, which is why the spread here is the widest in the country. A Thai language office in Bueng Kum publishes a document banded ladder starting at 3,000 baht a month. An English language firm in Asoke publishes 14,500 baht a month for up to 50 transactions. Both are real prices for real work.
The clearest single data point we found anywhere is a Bangkok formation service that publishes both sides itself: 15,000 to 20,000 baht all in for a fully Thai owned company, and 40,000 to 60,000 baht all in for a foreign owned one. Same firm, same page, same filing. That is the Foreign Business Act priced, by someone who does it every week.
Which registration office is yours
Bangkok does not have one company registration office, it has six, plus the head office in Nonthaburi. Which one you file at is decided by the district of your registered address, not by where you live or where your accountant sits. They are listed below with their areas.
Almost all of it can now be done through DBD e-Registration without going anywhere, which is what most firms actually do. The office matters when the online system will not take something, or when you need certified copies in a hurry.
Which tax office is yours
The same logic, at a larger scale. Bangkok is divided into thirty Area Revenue Offices, numbered 1 to 30, and your company belongs to the one covering the district in its registered address. You will rarely go there, because the monthly and annual returns are filed online, but you need to know which is yours when a VAT registration, a refund or an assessment letter comes up.
The One Stop Service has moved, and a lot of pages have not caught up
For years the answer to "where do I do a visa and work permit together" was the One Stop Service Center at Chamchuri Square. It has been superseded by the Thailand Investment and Expat Services Center at One Bangkok. Immigration Division 1’s own page still shows the Chamchuri Square address with no relocation notice, so two official sources disagree. Telephone before you travel, and see the note on that card below.
What Bangkok firms publish
Each figure came from the firm itself, in most cases printed on its own website. Where a firm has sent us its current rate card instead, the row says so. Follow the link, or tell us if something has changed and we will correct it.
| Firm | What the price is for | THB | The condition attached | Sells to |
|---|---|---|---|---|
| Inflow Account | Monthly bookkeeping | from 1,000 per month | Starting rate, scaled to business size | Thai |
| PNK Accounting | Package P-1, monthly | 3,000 per month | Lowest document band | Thai |
| Bookkeeping | Monthly bookkeeping | 3,500 per month | No cap published | Both |
| PNK Accounting | Package P-6, monthly | 10,000 per month | Highest published document band | Thai |
| M and E (Thailand) | SME plan | from 14,500 per month | Up to 50 transactions a month | Foreign facing |
| Plizz | SME to Corporate monthly packages | 14,900 to 26,900 per month | Tiered by transactions | Foreign facing |
| M and E (Thailand) | Corporate plan | from 20,500 per month | Up to 150 transactions a month | Foreign facing |
| Bookkeeping | Company registration | 8,900 one time | Does not say if the DBD fee is inside | Both |
| Inflow Account | Starter package | 11,999 per company | Conditional on a one year bookkeeping contract | Thai |
| Inflow Account | Standard package | 13,900 per company | Registration package | Thai |
| THAI LTD | Fully Thai owned company, all in | 15,000 to 20,000 per company | Firm’s own stated all in band | Foreign facing |
| THAI LTD | Quick Ltd. formation package | 19,000 per company | Named productised tier | Foreign facing |
| THAI LTD | Foreign owned company, all in | 40,000 to 60,000 per company | Firm’s own stated all in band | Foreign facing |
| Bookkeeping | Annual audit | 12,000 per year | No company size band published | Both |
| Bookkeeping | Work permit | 8,900 one time | One year visa priced separately | Both |
| K.S.3039 Business | Work permit, Bangkok | 7,900 per person | Per person | Thai |
| UnionSPACE | Work permit | 38,000 per person | Per person | Foreign facing |
| Plizz | Payroll outsourcing per employee | 450 to 650 per employee per month | 650 at 1 to 10, 550 at 11 to 50, 450 above | Foreign facing |
The offices, and which is which
Each of these was checked against the agency’s own page on 29 August 2026. Where the official source contradicts advice that is still repeated in English, we say so rather than quietly agreeing with it.
Register the company
Business Development Office Area 4 (Si Phraya)
สำนักงานพัฒนาธุรกิจการค้าเขต 4 (ถนนสี่พระยา)
Bangkok company and partnership registration in the Bang Rak and Silom area.
Amigo Tower, GB floor, 388 Si Phraya Road, Maha Phruettharam, Bang Rak, Bangkok 10500
0 2234 2951-3 · Mon-Fri 08:30-16:30, closed public holidays and during the lunch break
Without going there: Registration through DBD e-Registration at https://ereg.dbd.go.th.
Needs a visit: Paper filing, certified copies, collecting documents.
Register the company
Business Development Office Area 2 (Phahon Yothin)
สำนักงานพัฒนาธุรกิจการค้าเขต 2 (พหลโยธิน)
Bangkok company and partnership registration in the Phaya Thai area.
78/13 Rama VI Road, Phaya Thai, Bangkok 10400
0 2618 3340-41, 0 2618 3345 · Mon-Fri 08:30-16:30, closed public holidays and during the lunch break
Without going there: Registration through DBD e-Registration at https://ereg.dbd.go.th.
Needs a visit: Paper filing, certified copies, collecting documents.
Register the company
Business Development Office Area 3 (Ratchadaphisek)
สำนักงานพัฒนาธุรกิจการค้าเขต 3 (รัชดาภิเษก)
Bangkok company and partnership registration in the Huai Khwang and Ratchada area.
Preecha Complex Building (C2), 3rd floor, 48/3-4 Ratchadaphisek Road, Huai Khwang, Bangkok 10310
0 2276 7253, 0 2276 7255, 0 2276 7256, 0 2276 7259, 0 2276 7266 · Mon-Fri 08:30-16:30, closed public holidays and during the lunch break
Without going there: Registration through DBD e-Registration at https://ereg.dbd.go.th.
Needs a visit: Paper filing, certified copies, collecting documents.
Register the company
Business Development Office Area 1 (Pinklao)
สำนักงานพัฒนาธุรกิจการค้าเขต 1 (ปิ่นเกล้า)
Bangkok company and partnership registration, on the Thonburi side of the river.
Thanalongkorn Tower, 14th floor, Borommaratchachonnani Road, Bang Bamru, Bang Phlat, Bangkok 10700
0 2446 8160-1, 0 2446 8167, 0 2446 8169 (fax 0 2446 8191) · Mon-Fri 08:30-16:30, closed public holidays and during the lunch break
Without going there: Registration through DBD e-Registration at https://ereg.dbd.go.th.
Needs a visit: Paper filing, certified copies, collecting documents.
Register the company
Business Development Office Area 5 (Thanya Park, Srinakarin)
สำนักงานพัฒนาธุรกิจการค้าเขต 5 (ศรีนครินทร์ ธัญญาพาร์ค)
Bangkok company and partnership registration in the eastern Srinakarin corridor.
Thanya Park shopping centre, Zone A, 2nd floor, 735-735/1-8 Srinakarin Road, Suan Luang, Bangkok 10250
0 2108 6076 · Mon-Fri 08:30-16:30, closed public holidays and during the lunch break
Without going there: Registration through DBD e-Registration at https://ereg.dbd.go.th.
Needs a visit: Paper filing, certified copies, collecting documents.
Register the company
Business Development Office Area 6 (Chaeng Watthana, Government Complex)
สำนักงานพัฒนาธุรกิจการค้าเขต 6 (ศูนย์ราชการเฉลิมพระเกียรติ แจ้งวัฒนะ)
Bangkok company and partnership registration in the northern part of the city.
Ratthaprasasanabhakti Building, 1st floor, 120 Moo 3, Chaeng Watthana Road, Lak Si, Bangkok 10210
0 2143 7921-2 · Mon-Fri 08:30-16:30, closed public holidays and during the lunch break
Without going there: Registration through DBD e-Registration at https://ereg.dbd.go.th.
Needs a visit: Paper filing, certified copies, collecting documents.
File the tax
Bangkok Area Revenue Offices 1 to 30 (structure, not a single building)
สำนักงานสรรพากรพื้นที่กรุงเทพมหานคร 1 - 30
Every company whose registered head office is in Bangkok belongs to exactly one of the thirty numbered Area Revenue Offices, decided by the district (เขต) of that registered address.
Without going there: PP 30 (ภ.พ.30), PND 1 / 3 / 53 (ภ.ง.ด.1, 3, 53) and PND 50 / 51 (ภ.ง.ด.50, 51) are all filed through the Revenue Department e-filing portal at https://efiling.rd.go.th, which is the normal channel and gives an extended filing deadline over paper filing.
Needs a visit: Registering for VAT (ภ.พ.01), collecting the VAT certificate (ภ.พ.20), answering an audit or assessment letter, refund claims, changing registered particulars, and dealing with a specific tax officer assigned to your file.
Extend the visa
Immigration Division 1, Government Complex Chaeng Watthana
กองบังคับการตรวจคนเข้าเมือง 1 ศูนย์ราชการเฉลิมพระเกียรติ 80 พรรษา 5 ธันวาคม 2550
Foreign owners, directors and staff of Bangkok registered companies who need a visa extension, a re-entry permit or a 90 day report.
Government Complex Chaeng Watthana, Building B, 2nd floor (south side), Chaeng Watthana Road, Thung Song Hong, Lak Si, Bangkok 10210
0-2141-9889 (fax 0-2143-8228); Immigration call centre 1178
Without going there: 90 day reporting can be filed online at https://tm47.immigration.go.th. Extensions of stay can be applied for online through the e-Extension service at https://thaiextension.vfsevisa.com.
Needs a visit: First time extension applications and anything requiring biometrics or original documents, re-entry permits, residence certificates (ใบสำคัญถิ่นที่อยู่), alien registration books, and landlord or employer address notifications for Bangkok.
Get the work permit
Thailand Investment and Expat Services Center (TIESC), One Bangkok
ศูนย์บริการวีซ่าและใบอนุญาตทำงาน / Thailand Investment and Expat Services Center (TIESC)
BOI promoted companies and other privileged categories that can get a visa and a work permit issued together in one place, instead of visiting Immigration and the Employment Office separately.
One Bangkok, 1877 Rama IV Road, Lumphini, Pathum Wan, Bangkok 10330, floors 6 and 7 (PARADE zone)
Without going there: The centre runs a Single Window for Visa and Work Permit, so a BOI company can submit the visa and work permit application once online rather than to each agency separately.
Needs a visit: Collecting the visa stamp and work permit, and biometric or signature steps.
The national picture
Bangkok prices sit inside a wider market. Each of these compares what firms across Thailand publish for one service, with the source on every figure.
- Monthly bookkeeping & tax filing: 1,000 to 20,500 a month
- Annual audit: 4,000 to 50,000 a year
- Company registration: 2,000 to 70,000 service fee, plus about 6,350 in government fees
- Visa & work permit: 7,900 to 40,000 per person
- BOI promotion: 180,000 to 320,000 one off
- LTR & SMART visas: 22,000 to 100,000 service fee, plus 50,000 government
- Payroll & social security: 160 to 650 a head, or 500 to 8,000 flat a month
Published prices move and government offices relocate. This is a guide to what is printed, not a quote, and not accounting, legal or immigration advice. Found something that has changed? Tell us and we will fix it.