Tax
Got an IRD Tax Inquiry in Sri Lanka? Check These Five Traces First
When Sri Lanka's Inland Revenue Department sends a tax inquiry or flags a system mismatch, check five traces before anything else: entity and TIN details, VAT returns and input credit timing, payroll with EPF/ETF listings, customs and purchase records, and withholding tax against supplier TINs. Line up source documents, returns and bank statements on each trace, then classify the gap.
The letter often doesn't reach the finance desk at all. It lands in a director's inbox or the mailbox at the registered address. A newly set up company usually has one finance person, the books sit with an external accountant, the customs entries were filed by a freight forwarder, and the payroll sheet is a separate file in someone else's folder. Four links, four different hands. From where you sit nothing looks wrong, yet the system won't reconcile, and the reason is usually in that broken chain.
Which notice did you actually receive?
- A document request or evidence call. They want returns, invoice ledgers, bank statements for a set period. This is fact-checking, and what matters is answering on time and in the order listed.
- A system mismatch flag. VAT turnover filed against income tax revenue, customs values against input credit, social security headcount against the number of people on the APIT return. Usually a timing or classification difference, and it needs a written explanation.
- A formal Notice of Assessment. This is past the "just explain it" stage. Administrative review has strict deadlines, the burden of proof sits with the taxpayer, and once the deadline passes the room to argue usually goes with it. Take the date printed on the notice, not a rough "about a month".
Work out which of the three you have before deciding whether to bring in a licensed tax adviser straight away. The first two are usually worth one internal round first, which saves a good deal of adviser time. The third is not something to carry alone.

Trace 1: Do the entity details and the TIN match?
Check the TIN, registered company name, registered address, director and shareholder change records, and bank account opening documents against each other. IRD offers online TIN verification. Per IRD's published notice, from 1 November 2026 a valid TIN certificate is required for specified matters, including opening bank accounts, registering a business and share transfers; the exact scope follows IRD's latest published requirements (IRD).
The usual sticking point sits just outside the TIN itself. You hold the TIN but never activated e-Services. Or you moved office, changed the address at the Registrar of Companies, and IRD still has the old one on file. That kind of inconsistency triggers a flag on its own.
Trace 2: How do you reconcile VAT returns, filing periods and input credit?
From 1 January 2024 the standard VAT rate is 18%. Registration is required once taxable supplies exceed LKR 15 million in a month or a quarter, or LKR 60 million a year. Per the tax calendar IRD publishes, monthly VAT payment generally falls due by the 20th of the following month and the monthly return by the end of that month. Two separate deadlines. Do only one of them and the system records a missing return.
Input credit timing catches people out too. VAT on local purchases must be claimed within 12 months of the invoice date, and import VAT within 24 months of the customs declaration date. Past that window, a genuine invoice still can't be credited.
Trace 3: What if payroll, APIT and the EPF/ETF list don't agree?
EPF is 8% from the employee and 12% from the employer; ETF is 3% from the employer. EPF registration is free, normally completed in one day for a head office and seven days for other offices. If more than two years pass between incorporation or commencement of business and EPF registration, a written explanation has to be submitted. Late payment penalties are banded at 5% for 1 to 10 days, 15% for 10 days to one month, 20% for one to three months and 30% for three to six months, per the latest requirements published by the EPF Department of the Labour Ministry (Labour Department).
Start with the list, then check the totals. Whether directors and partners were counted as employees, how the contribution base was set for expatriate staff, and whether the social security headcount matches the headcount on the APIT return. Those three are the most common triggers for a new team.
Trace 4: How do customs declarations line up with VAT input and stock?
Amounts, HS codes and customs value on the declaration have to agree with the VAT input return, the purchase ledger and the stock count. Sri Lanka Customs moved to paperless declaration submission from 1 October 2026, which leaves a fuller electronic trail and invites closer matching. Differences tend to appear in three places: freight and insurance left out of the customs value, an HS classification that shifted between shipments, and samples or gifts cleared through customs but never entered in the purchase ledger. Follow Sri Lanka Customs' latest published requirements (Sri Lanka Customs).

Trace 5: What happens when withholding tax or supplier TINs are missing?
On local rent, service fees and professional fees, the questions are whether WHT was deducted, whether it was paid on time, and whether the supplier's TIN is on file. Expenditure with no deduction record, or with a missing supplier TIN, faces limits on deductibility at the annual assessment. Gaps on this trace get amplified faster than anywhere else.
Does a valid invoice guarantee a tax deduction?
Two misjudgements cost the most.
The first is "the invoices are all there, so it's deductible". Deductibility depends on whether the expense falls within the deductible categories under the Income Tax Act, and entertainment costs are a category that routinely gets added back. An invoice proves the amount and that the transaction happened; it doesn't change the character of the expense. How a particular item is treated is a call for a licensed tax adviser under the law in force.
The second is "the inquiry can wait". Stalling at the fact-checking stage costs time. Once a formal assessment is issued, review deadlines are strict and the burden of proof sits with the taxpayer, so what you lose is the chance to argue at all.
Where do the money and the time actually go?
- Gathering internal evidence. Exporting returns, bank statements, invoice ledgers, customs declarations and staff lists. This is labour hours, and messier books or longer periods push it up. It is also the part people most often underestimate.
- Adviser reconciliation and written explanation. Billed per matter or per hour. Scope varies enormously: reviewing one return is nothing like rebuilding three quarters from source documents.
- Tax, interest and penalties. The most volatile segment, driven by the size and nature of the difference and by whether you correct before assessment. There is no standard price for this, and a fixed figure quoted before anyone has seen the books deserves suspicion.
- Review or appeal stages. Handled by a lawyer or tax adviser, running in months and billed by stage.
How do you tell whether a quote or a timeline is reasonable?
Five questions usually show whether the number matches the work:
- Which traces does it cover? Does it include reconciling source documents back to the returns, or only an opinion based on the summaries you send over?
- Does it include written correspondence with IRD (explanatory letters, supplementary documents), and who signs them?
- If the reconciliation shows earlier quarters need amending, is that priced separately or included?
- How is the work sequenced: a difference list first and then a quote, or one fixed price for everything? Staged quotes are normally more credible than a lump sum.
- Who signs off, and are they a licensed firm, a practising accountant, or a hand-off to a third party?
On the timeline, watch two things: a firm delivery date for the first difference list, and whether communication runs through an email trail or a fixed written report. Verbal progress on a tax matter is close to no progress.
What order should the self-check follow?
Fix the evidence first, reconcile second, write the explanation last. Reverse it and you redo a round.
- Lock the period. Which taxes the inquiry covers and the exact start and end dates. Don't widen the scope yourself.
- One folder per trace: entity, VAT, payroll and social security, customs and purchases, WHT and suppliers.
- One three-way comparison sheet per trace: source document, what was filed, bank statement.
- Sort the differences into three types: timing (cross-period), classification (treated differently), substantive (omitted or misreported).
- Take professional advice only on the substantive ones. The first two usually close with a written explanation and an evidence index.
If nobody inside can pull the four information chains together, a local coordinator who can build the document list and chase progress is often faster than hiring someone at short notice.
This article is general information only and is not legal, tax or immigration advice. Specific requirements follow the latest position of the relevant Sri Lankan authorities and of a licensed professional engaged for the matter.
FAQ
- I've only received an email or letter asking me to provide documents. Do I need a tax adviser immediately?
- Not yet. That is a fact-checking exercise: gather the returns, invoice ledgers and bank statements on the list and reply by the deadline. Before you reply, run one round of the five-trace reconciliation yourself so the material you hand over isn't internally contradictory, which is how a document request turns into an audit. If the letter already names a specific difference amount or mentions assessment, bring in a licensed tax adviser.
- If the self-check shows a genuine filing error, does correcting it voluntarily make the penalty worse?
- That depends on the nature and size of the difference and on how it is treated under the law in force, which is a question for a licensed tax adviser; we don't give a conclusion on it. Two things are within your control: a complete evidence chain showing how the difference arose, which periods it touches and what source documents back it, and replying promptly. Both are necessary whether you correct or explain.
- How long does a data mismatch review usually take to resolve?
- There is no published standard timeframe. Speed depends on the nature of the inquiry, whether your submission is complete the first time, and whether records have to be checked across agencies, since customs declarations and EPF contribution records sit in different systems. So don't adopt a wait-and-see strategy. Sitting on it doesn't shorten anything; it narrows the window you have to argue.
- Our books are with an external accountant. Can they handle the whole self-check?
- Only half of it. They can cover the returns side, but bank statements, contracts, customs declarations, staff lists and board resolutions only exist inside the company. A workable split is: someone in-house collects evidence and fixes the timeline, the accountant reconciles backwards from the returns, and a licensed tax adviser gives the opinion on the substantive differences.
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