Accounting & Tax for Businesses
Clear books, on-time tax returns and files that are always ready — reducing the risk of back taxes and penalties at year-end finalisation or during a tax inspection.
Two ways to work with us
Hand over your accounting and tax entirely, or start with one specific task before committing long term.
Accounting & Tax – Full Package
Ongoing support that replaces an in-house accounting team:
- Keeping the accounting books
- Reviewing invoices and supporting documents for validity and legality
- Preparing and filing VAT and personal income tax returns quarterly (or monthly)
- Preparing and filing corporate and personal income tax finalisation
- Preparing annual financial statements
- Providing tax and accounting data to the tax authority on request
- Supporting your in-house accountant and advising on tax and accounting matters
- Flagging unusual or missing documents as soon as they are found
- Handing over all books, documents and accounting data every year and when the contract ends
You only send the documents — tracking deadlines and filing on time is TRÍ TÍN's responsibility.
Accounting & Tax – Case by Case
One-time work, no long-term contract:
- Year-end corporate and personal income tax finalisation
- Monthly or quarterly tax filing
- Tax filing for individual transactions or on request
- Reconstructing accounting books
- Explaining tax positions to the tax authority
- Handling a specific accounting or tax situation
Many businesses start with one specific task before working with TRÍ TÍN long term.
By type of business
Businesses that have just started operating
The first months are when penalties are most likely, because the business is not yet used to its filing obligations. TRÍ TÍN gets the books right from the start.
- Correct accounting books from the first month of operation
- Guidance on the first filing deadlines and the documents to keep
- Monthly reconciliation and confirmation of figures with you
- Tracking filing deadlines so you are not fined for late filing
Foreign-invested enterprises
Books, tax returns and financial statements for foreign-invested enterprises, with figures reconciled and confirmed every month.
- Accounting books, periodic tax returns, tax finalisation
- Annual financial statements; working with the independent auditor during the statutory audit
- Withholding and filing foreign contractor tax when paying overseas partners
- Figures reconciled and confirmed every month
We have worked with enterprises whose investors are from mainland China and Taiwan.
What you receive
Work follows a clear rhythm so you always know where your books and tax obligations stand.
Every month
- Invoices and documents are checked for validity and lawfulness; anything unusual is flagged straight away.
- The books are updated, and figures are reconciled and confirmed with you.
Every quarter
- Tax returns are prepared, cross-checked and filed on time.
- New tax rules that affect your business are tracked and applied promptly.
At year end
- Corporate and personal income tax finalization, and the annual financial statements.
- A financial statement risk assessment and an internal tax finalization review.
- All accounting data for the year is handed over; TRÍ TÍN keeps no original documents.
Throughout our engagement
- Two people for every file: the accountant in charge and a professional manager who cross-checks it.
- Guidance and support for your in-house accountant; tax and accounting advice whenever you need it.
- Providing data to, and working with, the tax authority on your behalf whenever it requests.
TRÍ TÍN's working principles
Two people, one file
The accountant in charge and a professional manager cross-check every file.
Reconciled every month
Figures are reconciled and confirmed monthly, even when taxes are filed quarterly.
Complete handover every year
All data is handed over each year; we keep none of your original documents.
Why TRÍ TÍN quotes for each business
Two businesses of the same size can need very different levels of support. TRÍ TÍN quotes only after understanding the state of your books and your actual needs, so the fee reflects the real workload and responsibility — and stays the same as long as the scope of work does not change.
What we consider when quoting
- Your industry, field and specific business operations
- The volume and nature of transactions, invoices and documents
- The current state of your books: just started operating, running smoothly, or in need of review or rework
- Your in-house accounting team and the level of support you need
- Advice needed beyond accounting and tax
- The scope of service you choose
How to Get a Quote
- 1
Share Your Details
Fill in a short form about the service you need — no phone call required.
- 2
Needs Assessment
TRÍ TÍN looks at the state of your books and your actual needs. For an operating business, we may review some figures to quote more precisely.
- 3
Transparent Quote
Receive a clear, tailored proposal and fee by email — with no hidden costs.
Get Consultation & Quote
Tell TRÍ TÍN about your business's current situation; we reply with the scope of work and a quote for your case.
Talk to us directly
Call or message us on Zalo for a quick conversation about your books.
No quote needed yet?
Describe the situation your business is facing — TRÍ TÍN replies by email, in Vietnamese.
Describe your situation

