Special Duty Allowance

Special Duty Allowance is 10% of basic pay for the North East and Ladakh; the Island allowance is 10%, 16% or 20% for the islands.

Updated 20 August 2026

Special Duty Allowance (SDA) is a central government allowance paid as a percentage of basic pay to employees posted in the North Eastern region and Ladakh, to compensate for the hardship of serving in these remote and difficult areas. It is 10% of basic pay, governed by the 7th Central Pay Commission recommendations and the Department of Expenditure Office Memorandum No. 11/1/2017-E.II(B) dated 18 July 2017, with effect from 1 July 2017. A parallel order, the Island Special Duty Allowance, covers the Andaman and Nicobar Islands and Lakshadweep.

This article explains the allowance and its island counterpart: the flat 10% rate for the North East and Ladakh, the three island rates and how they vary by area, who is eligible, how the allowance differs from the risk and hardship matrix and from house rent allowance, why it rises without any dearness-allowance step-up, and the tax position. It is a child of the allowances hub, which places it in the wider allowance framework.

The rate for the North East and Ladakh

For a posting in the North Eastern region or Ladakh, the Special Duty Allowance is 10% of basic pay, a flat rate for every central government employee posted there, not tiered by grade or cadre. Basic pay for this purpose is the pay drawn in the level of the pay matrix, and it excludes any special pay. The order is the Department of Expenditure Office Memorandum No. 11/1/2017-E.II(B) of 18 July 2017, and it took effect from 1 July 2017 with the rest of the 7th CPC allowance package.

The 7th CPC standardised the allowance. The older bad-climate and remote-locality compensatory allowances were folded into a smaller, cleaner set, and the Special Duty Allowance was set at a flat 10%, down from the pre-revised 12.5% of basic pay that most employees drew under the 6th CPC. One point of interaction matters, and it is an election rather than a flat bar. Paragraph 8 of Department of Expenditure Office Memorandum No. 3/1/2017-E.II(B) dated 19 July 2017 states that the Tough Location Allowance is not admissible along with the Special Duty Allowance, and then gives the employee an option: continue the Special Compensatory (Remote Locality) Allowance at the old 5th CPC rates, where it was admissible, together with the Special Duty Allowance at the revised rate of 10% of basic pay. The choice is therefore between one revised allowance and two allowances of which the location component is frozen at pre-revised rates, not between two revised allowances. Paragraph 9 of the same order gives a parallel election covering the hard area allowance, which is admissible alongside the island special duty allowance, against the subsumed location allowances. The allowance is not admissible during suspension or joining time, or for spells of leave, training or tour spent outside the region beyond full calendar months.

The Island Special Duty Allowance

The islands have their own order, the Department of Expenditure Office Memorandum No. 12/1/2017-E.II(B) of 18 July 2017, again with effect from 1 July 2017, for employees posted in the Andaman and Nicobar group of islands and the union territory of Lakshadweep. It is not a single rate but three, by how remote the posting is.

Area category	Illustrative areas	Rate
Capital-town areas	Within 8 km of the municipal limits of Port Blair, and Kavaratti and Agatti in Lakshadweep	10% of basic pay
Difficult areas	North and Middle Andaman, South Andaman excluding Port Blair; the Lakshadweep islands other than Kavaratti, Agatti and Minicoy	16% of basic pay
More difficult areas	Little Andaman, the Nicobar group, Narcondam and East Island; and Minicoy in Lakshadweep	20% of basic pay

So the Island Special Duty Allowance runs from 10% in the capital-town areas to 20% in the most far-flung ones, not up to 25% as is sometimes stated. The island order carries one feature the mainland one does not: the Island Special Duty Allowance is admissible in addition to the Hard Area Allowance where the Hard Area Allowance applies, which is granted by Office Memorandum No. 13/1/2017-E.II(B) dated 14 July 2017 at 20% of basic pay for the Nicobar group of Islands and Minicoy and 12% for seven other Lakshadweep islands, Kavaratti and Agatti being excluded by name. So an employee in a qualifying far-flung island area can draw the Island Special Duty Allowance and the Hard Area Allowance together, one on top of the other, which is the key island-specific point.

Who gets it

Eligibility is by posting, not by category. Any central government civilian employee posted in the notified areas draws the Special Duty Allowance, on the mainland, or the Island Special Duty Allowance, in the islands, at the flat rate for that area, whatever their grade or cadre. Civilian employees paid from the Defence Services Estimates are covered by the same orders. The armed forces personnel and the Railway employees are covered by their own parallel orders of the same period, issued by the Ministry of Defence and the Ministry of Railways, and the Indian Audit and Accounts Department employees are covered with the concurrence of the Comptroller and Auditor General. The point to take away is that a transfer into the North East, Ladakh or an island brings the allowance with it, without a separate claim on the ground of any particular duty.

How it differs from the hardship matrix and from HRA

The Special Duty Allowance is easily confused with two other things, and the distinctions are worth drawing.

It is not the same as the risk and hardship allowance matrix. That matrix pays for specific hazardous or arduous duties, cell by cell, such as a field-area posting, a high-altitude posting, flying duty or counter-insurgency, and the Tough Location Allowance that replaced the old remote-locality, bad-climate, tribal-area and Sunderban allowances lives inside it, in cells R3H1, R3H2 and R3H3. The Special Duty Allowance, by contrast, pays a flat percentage to everyone posted in a notified geography, regardless of the specific duty, which is why the two are not drawn together at revised rates and the employee elects between them under paragraph 8 of the order of 19 July 2017.

It is also not the house rent allowance. House rent allowance compensates for the cost of housing by city class and has nothing to do with hardship, and it is drawn alongside the Special Duty Allowance. Under the 7th CPC the Special Duty Allowance is a clean 10% of basic pay, independent of the house rent allowance an employee draws.

Why it rises without a dearness-allowance step-up

A common confusion is whether the Special Duty Allowance goes up with dearness allowance, as many fixed allowances do. It does rise, but not through that mechanism. Because the Special Duty Allowance and the Island Special Duty Allowance are computed as a percentage of basic pay, they rise automatically whenever basic pay rises, whether through the annual increment, a pay fixation on promotion, or a new pay commission. The 7th CPC rule that a fixed-rupee allowance rises by 25% each time dearness allowance crosses a 50% threshold does not apply to these allowances, because that step-up exists only to keep rupee-denominated allowances current, and a percentage allowance already tracks basic pay. So an employee’s Special Duty Allowance grows every year with the increment, without any separate order.

The tax position

The Special Duty Allowance and the Island Special Duty Allowance are part of salary income and are taxable in the ordinary way; there is no blanket exemption for them. It is worth clearing up a related confusion: Section 10(14)(ii) with Rule 2BB exempts certain separately-notified area compensatory allowances up to small fixed monthly caps, such as the Special Compensatory (Hilly Areas) Allowance and specified border-area allowances, at figures like Rs. 800 a month rising for the most extreme areas. Those are different, fixed allowances, not the Special Duty Allowance, which is a percentage allowance and carries no such cap, so most of an employee’s Special Duty Allowance is taxable even in the old regime. Under the new tax regime, the default from the financial year 2023-24, the Section 10(14) special-allowance exemptions are withdrawn altogether, so the Special Duty Allowance and any small compensatory allowance are fully taxable. The income tax for government employees article covers the deductions; the safe course, for a complex case or a large amount, is to confirm the treatment with a tax adviser for the current financial year.

Frequently Asked Questions (FAQs)

What is the Special Duty Allowance rate for the North East and Ladakh?

It is 10% of basic pay, a flat rate for every central government employee posted in the North Eastern region or Ladakh, under the Department of Expenditure Office Memorandum of 18 July 2017, with effect from 1 July 2017. It is not tiered by grade or cadre.

How much is the Island Special Duty Allowance for the Andaman and Nicobar Islands and Lakshadweep?

It is 10%, 16% or 20% of basic pay by area category: 10% in the capital-town areas, 16% in the difficult areas, and 20% in the more difficult areas such as the Nicobar group, under the Office Memorandum of 18 July 2017.

Does the Special Duty Allowance increase when dearness allowance rises?

There is no separate 25% step-up. Because the allowance is a percentage of basic pay, it rises automatically whenever basic pay rises, through an increment, a pay fixation or a new pay commission. The rule that raises an allowance by 25% each time dearness allowance rises by 50% applies only to fixed-amount allowances.

Can an employee draw the Island allowance and Hard Area Allowance together?

Yes. The Island Special Duty Allowance is admissible in addition to Hard Area Allowance where the Hard Area Allowance applies, so an employee posted in a qualifying far-flung island area can draw both, one on top of the other.

Is the Special Duty Allowance taxable?

Yes, it is taxable as part of salary; there is no blanket exemption for it. The small fixed exemptions for certain hilly and border-area compensatory allowances under Rule 2BB are for different allowances and apply only in the old regime; under the new regime the Special Duty Allowance is fully taxable.

Who is eligible for the Special Duty Allowance?

Any central government employee posted in the North Eastern region or Ladakh draws it by virtue of the posting, not the cadre or grade. Employees paid from the Defence Services Estimates are covered by the same order; the armed forces and the Railways have their own parallel orders.

External references

References

Report of the Seventh Central Pay Commission (November 2015), Chapter 8 (Allowances), recommendations on the Special Duty Allowance and the Island Special Duty Allowance.
Ministry of Finance, Department of Expenditure Office Memorandum No. 11/1/2017-E.II(B) dated 18 July 2017 (Special Duty Allowance for the North Eastern region and Ladakh, 10% of basic pay, with effect from 1 July 2017).
Ministry of Finance, Department of Expenditure Office Memorandum No. 12/1/2017-E.II(B) dated 18 July 2017 (Island Special Duty Allowance for the Andaman and Nicobar Islands and Lakshadweep, 10%, 16% and 20% of basic pay by area, and admissible in addition to Hard Area Allowance).
Ministry of Finance, Department of Expenditure Office Memorandum No. 13/1/2017-E.II(B) dated 14 July 2017 (Hard Area Allowance at 20% of basic pay for the Nicobar group of Islands and Minicoy and 12% for Kiltan, Andrott, Kalpeni, Chetlat, Kadmat, Amini and Bithra, effective 1 July 2017).
Ministry of Finance, Department of Expenditure Resolution No. 11-1/2016-IC dated 6 July 2017 (government decision on the 7th Central Pay Commission recommendations on allowances).
Income-tax Act, 1961, Section 10(14)(ii) with Rule 2BB(2) of the Income-tax Rules, 1962 (fixed compensatory area allowances), and Section 115BAC (the new tax regime, which withdraws these exemptions).