Corporate Roll-Over Relief (ss 41–47): The Complete Guide

Why the corporate rules exist

For tax purposes, almost any transfer of an asset is a disposal — and a disposal to a connected person is treated as happening at market value, even if no money changes hands. Without special rules, every group tidy-up, merger or move of a property into a company would trigger capital gains tax on paper profits, even though the same people still own the same assets at the end of the day.

Parliament’s answer is Part III of the Act. Its own heading tells you exactly what it covers:

The thinking is simple: where a genuine reorganisation merely changes the legal wrapper around an asset — the same economic owners keep the same economic exposure — the tax system should not force a tax bill that would otherwise make sensible restructuring impossible.

Deferral, not forgiveness

Most of the tools use the same basic machine. The person transferring the asset is treated as disposing of it at its tax cost (base cost for a capital asset, tax value for trading stock) — so no gain arises now. The person receiving the asset inherits that tax cost and the original acquisition date, standing in the transferor’s shoes. The built-in gain does not disappear; it travels with the asset, and the deferred amount is brought to account when the asset is eventually disposed of outside the relief — with the actual tax then depending on the proceeds, deductions, losses and law in force at that time. Two of the tools work differently in the detail: s 43 rolls the holder’s own cost into a replacement share, and s 46 splits an existing shareholder’s cost between two shareholdings rather than moving an asset at all — each spoke guide covers its own mechanics.

Two practical consequences follow. First, roll-over relief is only worth using where the asset’s value exceeds its tax cost — the corporate rules are built for gains, and several of them will not shelter a built-in loss. Second, because the gain survives inside the structure, the exit is where SARS focuses its attention — which is why the anti-avoidance layer (below) matters as much as the relief itself.

The six roll-over tools at a glance

The six sections each address a distinct reorganisation pattern. The spoke guides below the grid walk through each in full — requirements, mechanics, traps and a worked example. In brief:

• s 42 — Asset-for-share: you hand an asset to a resident company and take new shares in exchange — the classic way to move a property or business into a company.
• s 43 — Substitutive share-for-share: you swap one form of share in a company for another form of share in the same company (historically, linked units becoming ordinary shares) without a disposal.
• s 44 — Amalgamation: two companies become one: the amalgamated company transfers everything to the resultant company, its shareholders take shares in the survivor, and it is then terminated.
• s 45 — Intra-group: an asset moves between two companies in the same 70% group with no immediate tax — the workhorse of group restructures, with the fiercest anti-avoidance.
• s 46 — Unbundling: a company distributes the shares of a subsidiary to its own shareholders, so they hold both companies directly, side by side — strict gateways decide who may receive the shares with relief.
• s 47 — Liquidation distribution: a subsidiary being wound up passes all its assets up to its group holding company at tax cost, then disappears.

Two of these need a company to actually disappear: s 44 and s 47 both require the transferring company to take formal steps to be liquidated, wound up or deregistered within 36 months, failing which the relief is reversed.

The rules that override the relief

The corporate rules are powerful — s 41(2) makes them apply “notwithstanding any provision to the contrary” in the Act. But the same subsection then lists the provisions that beat the corporate rules. This carve-out list is the single most important sentence in the whole of Part III:

In plain language: even a perfectly executed roll-over can still be trumped by the value-mismatch rules (s 24BA — issuing shares worth more or less than the asset), the general anti-avoidance rule (GAAR, ss 80A–80L), the assessed-loss and avoidance rules in s 103, the value-shifting rules in the Eighth Schedule, and the foreign-exchange and interest-instrument rules (ss 24I and 24J). We unpack each of these — with the 2026 court decisions that show them in action — in The Rules that Override Roll-Over Relief.

The other taxes: transfer duty, STT and VAT

Income tax is only one of the taxes that can bite when an asset moves. Three separate exemptions are linked to the corporate rules — related, but each standing on its own statute, conditions and paperwork. The Transfer Duty Act exempts property acquired under a qualifying s 42, 43, 44, 45 or 47 transaction (s 9(1)(l), limbs (i)–(iii)), on a sworn affidavit by the company’s public officer. The Securities Transfer Tax Act exempts share transfers made under the corporate rules (s 8(1)(a)), again on the public officer’s sworn declaration and subject to the Act’s timing requirements. And the VAT Act contains a deeming rule (s 8(25)) treating vendor parties to a qualifying s 42, 44, 45 or 47 supply as one and the same person — with going-concern (or fixed-property leaseback) conditions attaching to the s 42 and s 45 limbs specifically, and a written election for those limbs into the ordinary zero-rating rules instead. None of these applies automatically because the income-tax relief does — see VAT & Securities Transfer Tax When Restructuring and Transfer Duty & the Section 42 Exemption.

Note — the exemptions only apply where the income-tax roll-over actually applies. If the parties elect out of a roll-over in writing (most of the sections allow this), the STT and transfer-duty exemptions fall away with it — a point that catches people who opt out for base-cost reasons without re-doing the duty arithmetic.

Time limits and clawbacks

Every tool carries its own guard-rails, but four recur across the Part and are worth knowing from the start:

The 18-month rules. Several, but not all, of the corporate rules attach special consequences to a disposal within 18 months — ss 42, 44, 45 and 47 each have their own version, with their own triggers and outcomes; ss 43 and 46 have no equivalent early-disposal rule (though other anti-avoidance rules can still apply). Record the implementation date and check the rule for the specific section used before any later disposal or distribution.

The six-year degrouping charge (s 45(4)). If the companies stop being part of the same group within six years of an intra-group transfer, the deferred gain is clawed back in the transferee — the single biggest trap in group restructuring.

The 36-month termination requirement (ss 44(13) and 47(6)). Amalgamations and liquidation distributions are conditional on the disappearing company actually taking the statutory steps to liquidate, wind up or deregister within 36 months.

Extraordinary dividends (para 43A). Stripping value out as “exempt” dividends within 18 months before a share disposal converts those dividends into taxable proceeds — and the 2026 Company AF judgment shows SARS reaching the same result under GAAR even for older transactions. See Dividend Stripping & the 18-Month Web.

Worked example: one family, three tools

Before signing

Roll-over relief depends on the exact parties, share rights, asset tax classification, values, residence, VAT status, debt assumed, consideration received and the order of steps. Obtain transaction-specific tax and legal advice before agreements or resolutions are signed — a later correction may not restore the relief.