Vetting help to avoid the underestimation penalty

You've just received a SARS letter warning about an underestimation penalty. Your provisional tax figure was too low, and now you owe the shortfall plus a fine. Your first instinct might be to blame yourself—but it's worth asking whether the person who prepared your estimate actually did their job properly. Before you pay up or switch advisers, you need to know how to spot whether you hired someone who understood the risks and took reasonable care, or someone who cut corners.

The underestimation penalty exists because SARS expects provisional taxpayers to estimate in good faith based on their actual circumstances. If your estimate was materially wrong, you'll face a penalty unless you can show it was reasonable at the time. That reasonableness hinges partly on who advised you and what information they had. Vetting help now—even after the fact—tells you whether to trust them going forward and what to demand if you stay with them.

Check their engagement record

A competent adviser should have documented what they did when they prepared your estimate. Ask to see the file. What did they request from you? Did they ask about your opening balances, prior-year actual figures, and any significant changes in your business? Did they explain their assumptions about growth, seasonal variations, or one-off expenses? If the file is thin or contains only your latest bank statement, that's a red flag.

Request a copy of the actual IRP6 form they submitted and any covering letter or notes they sent to SARS. These should reflect the basis of the estimate—what they knew and why they chose that figure. If there's no trail, the adviser was not being thorough. When you query a penalty, SARS wants to see the reasoning. An adviser who kept no record can't defend their work.

Verify their tax registration

Ask for their SARS tax practitioner registration number (if they claim to be one) or ask whether they're a Chartered Accountant or tax consultant who operates under a professional body. Contact SARS directly or check the relevant professional register—SAICA for CAs, or the Tax Practitioners Board if one exists in your jurisdiction. You're not looking for perfection; you're checking they operate under a framework that requires them to keep records and follow a code of conduct.

If they're unregistered, that doesn't mean they're incompetent, but it does mean there's no formal body to complain to if things go wrong. It also suggests they may not carry professional indemnity insurance—which matters if you want to recover losses from an error.

Phone three of their other clients

This is the most revealing step. Ask the adviser for contact details of three clients who've used them for provisional tax over at least two years. When you call, ask:

• Did they receive any penalty notices while using this adviser?
• If so, did the adviser help them understand why and fix the estimate going forward?
• Did the adviser ever ask them probing questions about their business or just file based on a rough number?
• Have they switched advisers, and if so, why?

If every reference says they've never had a problem, that's encouraging—but it might also mean the adviser works mainly with stable, predictable businesses. If one or two mention penalties, ask how the adviser responded. Did they take it seriously and rebuild the process, or did they blame SARS?

Understand what