Do I file in both India and Singapore?
Usually yes, at least for the transition year. Entities claiming treaty benefits need substance and eligibility; individuals need the residency tests run on the Indian basis with the certificate and declaration in hand.
Which return do you prepare first?
Whichever one the credit depends on. Preparing them in the wrong order is the most common reason a credit is claimed in the wrong place, and it is also the most common reason a client ends up paying twice and reclaiming later.
Does the treaty mean I only file once?
No. A treaty allocates the tax; it does not consolidate the filing. Both obligations survive, and in some cases the treaty position itself has to be disclosed on a return before it can be relied on.
What about sub-national tax — states and provinces?
They set their own residency and sourcing rules and are not bound by the federal treaty in the same way. A position that is protected federally can still produce a state or provincial return, which is the single most common surprise in this corridor.
Can you work with my adviser in the other country?
That is how most corridor engagements run. They keep their side, we take ours and the interaction between the two, and the scope boundary is agreed in writing so nothing is duplicated or dropped.
What if I am behind in one country and current in the other?
That is the usual pattern. We map the unfiled years first and check which catch-up routes are open before anything is filed, because the route chosen for one year affects the relief available for the rest.
Do I need an Indian tax residency certificate?
If you are claiming relief under the treaty against Indian tax, expect to be asked for one, together with the declaration that normally accompanies it. The certificate is issued by the country you are resident in, and it is what India looks for before treaty relief is applied at source. Obtaining it after the payment has been made is harder than obtaining it before, because the deduction has by then already happened and the position has to be recovered through a return. On this corridor the practical rule is to have the certificate and the declaration in hand before any payment falls due.
I am posted to Singapore, am I still resident in India?
That is decided by the Indian tests first, on days present, and not by the posting or the employment contract. Only once India has reached its own answer does the treaty come into play, and that stage looks at your circumstances rather than at where your employer has placed you. This matters because the Indian year runs from April to March, so a posting that begins mid-year sits inside one Indian year and can leave you resident for the whole of it. We run the counts before the first filing and record the conclusion in writing.
Will our Singapore holding company get treaty benefits?
Not on incorporation alone. Treaty entitlement for an entity turns on substance and eligibility: where decisions are actually taken, who takes them, what the company does beyond holding, and whether it meets the treaty's own conditions for claiming. A company that exists on paper while the decisions are made elsewhere is the position most often challenged. The work is evidential rather than clever. Board records that reflect real deliberation, people with authority in the place the company claims to be, and documents made at the time. It is built before the claim, because it cannot be assembled convincingly afterwards.
Why was tax withheld on our payment from India?
Because India collects tax at source on most payments made to non-residents, and it does so before any exemption or treaty rate has been taken into account. The payer takes the deduction to protect itself, and whether the treaty reduces it is then argued on your side of the transaction. There are two routes. Either the documentation supporting the lower rate is with the payer before payment, or the excess is reclaimed through an Indian return afterwards. The first avoids a refund claim altogether; the second is the form most files arrive in.
Does Singapore tax income I earn from India?
Singapore's system has territorial features, so the source and character of the income, and how it is received, matter in a way they would not under a purely worldwide system. That makes this a question to test item by item rather than to assume, before a position is taken on either return. What we do not do is treat the Indian side as settled by the Singapore answer, or the reverse. India will tax what its own rules give it, usually by collecting at source, and the two positions then have to be reconciled rather than merged.
What evidence shows our company is really in Singapore?
The kind a reviewer can test. Minutes that show decisions being made rather than ratified, directors who are present and who hold the authority they appear to hold, staff, premises and contracts that fit the activity claimed, and a record made at the time rather than reconstructed later. Bank mandates, who signs, and who negotiates the group's contracts all speak to the same question. For entities in this corridor that evidence is the file, because entitlement to treaty benefits is where an enquiry starts, and it is answered from documents rather than from assertions.
Do I have to file in both countries?
Frequently yes, and the two filings do different jobs. The country where the income arises taxes it at source; the country where you are resident taxes your worldwide income and then gives credit for the tax already paid. Filing only one side is what leaves relief unclaimed — the credit has to be asked for on a return. We prepare both sides so the numbers agree. See dual filing.
What is a permanent establishment, and how easily do we create one?
A taxable presence in another country under the treaty — typically a fixed place of business such as an office, branch, factory or workshop, or a dependent agent habitually concluding contracts on your behalf. Some treaties add a services test measured in days. Purely preparatory or auxiliary activity is excluded, but that carve-out is narrower than it sounds: one senior employee working from home in the other country, with authority, has been enough. See business profits and permanent establishment.
