Finance & compliance
Corporate tax & compliance
Corporate tax Indonesia filings, withholding and the compliance calendar, handled every month.
Who this is for. A company that files in Indonesia every month and wants the calendar handled by someone who watches it, rather than remembered by someone who is busy.
Compliance calendarSeptember
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Dates shown are the statutory deadlines
- Withholding paid
- Returns filed
- VAT, month end
Trusted by companies operating in Indonesia
15th
Withholding paid by, each month
20th
And filed by
Withholding
Where most assessments originate
Included
What you get
- Monthly tax calculations and returns
- Withholding tax identified, deducted, paid and reported — the area that most often goes wrong
- The annual corporate return, reconciled to your accounts
- The compliance calendar managed, with what is due and when, before it is due
- Correspondence with the tax office handled, including data requests
- Support during an examination, so you are not answering questions alone — charged separately
- VAT registration taken care of from start to finish, and VAT compliance as a separate engagement
Corporate tax Indonesia compliance handled month by month: the calculations, the filings, the withholding, and the calendar that governs all of it — so nothing is missed and nothing is late.
Indonesian corporate tax is not an annual event. It is a monthly obligation with deadlines that do not move, and the annual return is the reconciliation of what you did all year.
Withholding tax deserves particular attention
It is the most common source of assessments we see, and the reason is structural: the obligation sits with the payer, not the recipient. Every payment your company makes has to be assessed for whether tax should have been withheld — services, rent, interest, royalties, payments abroad.
Companies miss it because the payment felt like an ordinary supplier invoice. The liability does not go away; it surfaces later, with interest.
Why us
Why MAM for Corporate tax & compliance
- Qualified accountants reading the rules
MAM is led by ACCA members, registered with IAPI and a member of IAI, so a position taken on your return is taken by someone accountable for it.
- Tax and accounting are the same team
Nothing is outsourced. The people filing your return are the people who kept the books it comes from, which is where most reconciliation problems start.
- Told before the deadline, not after
Where a change in your business alters your tax position, we raise it when we see it in the accounts rather than at the filing date.
Credentials
Qualified, and accountable for it
MAM's work is done by qualified accountants and carried out to the standards of these professional bodies — not by a general administrator following a checklist.
Led by members 
Registered 
Member 
Through ACCA 
Xero Bronze Partner & Certified Advisor Reviews
What clients say
We have engaged many business consultants in past and MAM Corporate Solutions is by far among the most informed and professional business consultants as per our experience. They have helped us with various services such as tax compliance, company incorporation and business valuations and every time they have exceeded our expectations.
MAM Corporate Solutions offers great services! All the team makes all the incorporation process very clear, and always takes the time to explain every step of the way in details. They are fast and efficient, and always make sure they find the solution that's most adapted to your need. I could not recommend them enough!
MAM Corporate Solutions provides us accounting service on Xero. They have always kept our records up-to-date and we are happy with their service.
Questions
What people ask us
What do you need to know before you can quote?
The average number of transactions a month, the type of transactions, whether the company is registered for VAT, and whether it has a resident director with a local tax ID. That last one matters more than it sounds: a company's tax compliance runs through the personal Coretax account of someone acting for it, a member of management such as a director or a person management formally appoints. Coretax is the tax office's online filing system.
Which taxes are inside the monthly fee?
The monthly withholding service covers PPh 23, PPh 4(2), PPh 25 and PPh 26 — the income taxes withheld or paid in instalments at source. Corporate income tax is not part of it and is billed separately. PPh 21, withheld from employee salaries, is handled inside the payroll service. VAT compliance, the monthly tax invoices and VAT return, is a separate engagement, and we also advise on and take care of VAT registration.
If the tax office opens an examination, do you represent us?
Yes, and it is charged separately. An examination is opened by the tax office on its own assessment of a company, and so is an SP2DK — a written request to explain something on a return, which is not an audit but can lead to one. We can make sure the compliance is done properly; we cannot promise no examination is ever opened, because that decision is not ours.
Who is responsible if a figure later turns out to be wrong?
The director of the company is ultimately responsible for its compliance.
What do you need from us each month, and by when?
The list of transactions for the previous month, including any payments made locally or overseas. Tax withheld on payments has to be paid to the tax office by the 15th of the following month and filed by the 20th, so we need the information in time to do both.
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Learn more →Talk to someone who does this every day
A free 30-minute call. Bring the situation you are actually in, and you will leave with a clear view of what is involved.