List of Legislation Covering Additional Dwelling Supplement in Scotland

LBTT Additional Dwelling Supplement: main legislation

The Additional Dwelling Supplement (ADS) is the extra LBTT charge that can apply when someone buys an additional home in Scotland. The main point of the source material is that ADS is spread across several pieces of legislation, so you often need to check more than one law to decide if the charge applies, whether relief is available, and how any claim or repayment must be made.

• The core ADS charging rules are mainly found in Schedule 2A to the Land and Buildings Transaction Tax (Scotland) Act 2013.
• The 2016 Act introduced ADS into the LBTT system, and later legislation has amended and refined how it works.
• The 2017 Order is important for main residence replacement issues and includes family unit rules in paragraphs 8A and 9A.
• The 2018 Act provides relief from ADS in some cases where the extra charge might otherwise apply.
• The Revenue Scotland and Tax Powers Act 2014 covers procedure and administration, including returns, claims, enquiries and repayments.
• In practice, ADS cases should be checked in stages: identify the transaction, apply Schedule 2A, then review later amendments, reliefs and procedural rules.

Scroll down for the full analysis.

LBTT Additional Dwelling Supplement: the main legislation

This page explains the main legislation behind the Additional Dwelling Supplement, usually called ADS, within Scotland’s Land and Buildings Transaction Tax system. The source material is only a list of legislative references. What matters in practice is understanding which law contains the charging rules, which law adds reliefs or amendments, and where to look if you need the exact legal wording.

What this rule is about

ADS is the extra amount of LBTT that can apply to certain purchases of dwellings in Scotland, commonly where a buyer is acquiring an additional residential property rather than replacing their only or main home. The source page does not explain the detailed conditions. Instead, it identifies the legislation that governs ADS.

This matters because ADS is not contained in a single stand-alone rule. The framework is spread across primary legislation, later amending legislation, a statutory instrument dealing with main residence relief, and the general tax administration legislation. If you are trying to work out whether ADS applies, whether a relief is available, or how a repayment claim works, you often need to move between these sources.

What the official source says

The official material lists the legislation said to cover ADS:

• the Land and Buildings Transaction Tax (Scotland) Act 2013, which is the main LBTT statute;
• the Land and Buildings Transaction Tax (Amendment) (Scotland) Act 2016, which introduced the additional amount regime;
• Schedule 2A to the 2013 Act, which contains the core ADS rules for transactions relating to second homes and similar cases;
• the Land & Buildings Transaction Tax (Additional Amount – Second Homes Main Residence Relief) (Scotland) Order 2017, which deals with a form of main residence relief;
• the Land & Buildings Transaction Tax (Relief from Additional Amount) (Scotland) Act 2018, which added relief from ADS in certain circumstances;
• amendments concerning family units in paragraphs 8A and 9A, introduced through the 2017 Order;
• the Revenue Scotland and Tax Powers Act 2014, which provides the wider administrative and procedural framework.

In short, the source page is a signpost page. It tells you where the law is, rather than explaining the substantive rules itself.

What this means in practice

If you are dealing with ADS, the first practical point is that the core charging rules are found in Schedule 2A to the 2013 Act. That is usually the starting point for questions such as whether the property is a dwelling, whether the buyer already owns another dwelling, and whether the transaction falls within the additional amount regime.

The later legislation matters because ADS has been changed and refined over time. A reader who looks only at the original 2013 Act may miss important amendments, reliefs, or special rules. For example:

• the 2016 Act is important because it inserted the ADS regime into the LBTT structure;
• the 2017 Order is relevant where the issue concerns replacement of a main residence and the operation of relief in that context;
• the 2018 Act is relevant where a transaction may qualify for relief from the additional amount even though ADS would otherwise arise;
• the Revenue Scotland and Tax Powers Act 2014 becomes important for matters such as returns, assessments, claims, enquiries, and procedure.

So, in practice, ADS analysis is not just about asking whether this is a second home purchase. It is also about identifying whether any later amendment or relief changes the outcome.

How to analyse it

A sensible way to approach the legislation is to work in stages.

1. Identify the transaction.

   Is this a land transaction in Scotland that falls within LBTT, and does it involve a dwelling or dwellings?

2. Go to the core ADS rules.

   Start with Schedule 2A to the Land and Buildings Transaction Tax (Scotland) Act 2013. That is where the main legal test for the additional amount sits.

3. Check whether amendments affect the reading.

   Do not read Schedule 2A in isolation. The 2016 Act and later measures may alter how the rules apply.

4. Consider whether a main residence rule or relief applies.

   If the facts involve selling one home and buying another, or a possible replacement of a main residence, the 2017 Order may be relevant. If there is a potential statutory relief from ADS, the 2018 Act may also need to be reviewed.

5. Check family unit rules where relevant.

   The source specifically points to amendments around family units in paragraphs 8A and 9A. That tells you that ownership and residence questions may not always be looked at only person by person.

6. Check the procedural rules.

   If the issue is not whether ADS applies, but how to claim relief, amend a return, or deal with Revenue Scotland, the Revenue Scotland and Tax Powers Act 2014 is likely to matter.

This approach helps separate three different questions that are often blurred together: whether ADS is charged, whether relief is available, and how the tax is administered.

Example

Illustration: a buyer purchases a dwelling in Scotland while still owning another dwelling. Their first question is likely to be whether ADS is due. The starting point is Schedule 2A to the 2013 Act. But if the buyer says the new purchase is connected with replacing their only or main residence, the analysis may also require the 2017 Order and any relevant relief provisions. If they have already paid ADS and later believe a repayment or relief should apply, the procedural route may depend on the Revenue Scotland and Tax Powers Act 2014 as well as the substantive ADS legislation.

The point of the example is not that any particular result follows automatically, but that the legal answer may depend on more than one legislative source.

Why this can be difficult in practice

The source page highlights a common difficulty with ADS: the law is fragmented. The charge itself, the later amendments, the relief provisions, the family unit rules, and the administrative framework are not all in one place.

That creates several practical risks:

• a reader may find the core charging rule but miss a later amendment;
• a reader may assume guidance about replacement of a main residence is contained in the main Act when it may depend on later legislation;
• a reader may identify a possible relief but overlook the separate procedural rules needed to claim it;
• a reader may treat family ownership or occupation too narrowly if special family unit provisions are relevant.

The source material itself does not resolve those detailed issues. It simply identifies the legislative building blocks. So where a case turns on timing, ownership structure, family relationships, or a claim to relief, the exact statutory wording and the interaction between the different instruments can matter a great deal.

Key takeaways

• ADS is governed by a group of Scottish legislative sources, not one single provision.
• Schedule 2A to the 2013 Act is the main starting point for the substantive ADS rules.
• Later legislation and the tax administration framework may change the outcome or the way relief and claims operate.

This page was last updated on 24 March 2026

Useful article? You may find it helpful to read the original guidance here: List of Legislation Covering Additional Dwelling Supplement in Scotland

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