A recent decision of the Tax Court in ABC v C:SARS highlights an important principle in South African tax administration: Where SARS communicates ambiguously with taxpayers, the consequences of that ambiguity may not necessarily fall upon the taxpayer.

The case concerned the effective date of a taxpayer’s VAT registration following the reactivation of a previously dormant VAT vendor. Although seemingly procedural, the dispute ultimately resulted in additional VAT assessments of approximately R3.3 million and the imposition of understatement penalties.

Background to the dispute

The taxpayer had been registered as a VAT vendor in the early 2000s, but became dormant and was deregistered around 2010. In 2017 the company was revived in order to perform services under a municipal tender valued at approximately R60 million.

According to the taxpayer, it submitted a VAT registration form in January 2018 with a liability date of 1 February 2018, coinciding with the commencement of the tender. When no feedback was received from SARS, the company issued invoices without VAT, indicating that its VAT number was “pending”.

After further follow-ups, the taxpayer submitted another VAT101 form in June 2018. On 28 June 2018 SARS issued a letter stating simply that the taxpayer’s “request for reactivation” had been approved. Critically, the letter did not state the effective date of registration.

Faced with this ambiguity, the taxpayer assumed that its VAT registration became effective on the date of the letter, namely 28 June 2018, and began charging VAT from that point onwards.

SARS audit and additional assessments

During a later audit, SARS adopted a different position. Based on the information recorded on its system, SARS treated the taxpayer as a VAT vendor from 1 February 2018 and issued additional assessments for the periods February - July 2018.

The assessments were premised on the view that output VAT should have been charged on supplies made from February 2018 onward. In addition, SARS imposed a 25% understatement penalty.

The central question before the Tax Court was therefore whether the taxpayer should be treated as a VAT vendor from February 2018 (as SARS contended) or only from 28 June 2018 (as the taxpayer believed).

Interpretation of SARS correspondence

The Court approached the matter by considering the legal effect of the “reactivation letter”. Importantly, the Court found that the letter was ambiguous because it did not specify the effective date of the reactivation.

Drawing on principles analogous to the law of mandate, the Court held that where a party acts on ambiguous instructions, that party will not necessarily be in default if it adopts a reasonable interpretation of those instructions.

In this case, the taxpayer’s assumption that registration commenced on the date of the letter was regarded as reasonable. Among other factors:

• the letter itself did not indicate a retrospective liability date;
• the taxpayer believed that it had applied for registration earlier;
• the taxpayer’s client (a municipality) interpreted the letter in the same way; and
• it would be unusual for SARS to impose a retrospective registration date without clearly stating it.

Outcome

The Court held that SARS had failed to adequately communicate that the VAT liability date was 1 February 2018. As a result, the taxpayer justifiably understood the letter to mean that registration took effect on 28 June 2018.

However, rather than simply setting aside the assessments, the Court referred them back to SARS for reconsideration on the basis that the taxpayer became a VAT vendor only on 28 June 2018. The issues of VAT liability, penalties, and interest must therefore be reassessed accordingly.

Practical implications

The judgment underscores several important lessons:

• Clarity in SARS communication is critical. Ambiguous notices can materially affect tax liability.
• VAT vendor status may arise independently of formal registration, but SARS must clearly determine and communicate the effective date.
• Taxpayers may rely on a reasonable interpretation of ambiguous SARS correspondence.
• Administrative ambiguity may undermine the basis for assessments and the imposition of penalties.

For practitioners, the case serves as a reminder that procedural defects in SARS processes — particularly unclear correspondence — may materially influence the outcome of tax disputes.