Municipal finance services
GRAP 104 and 108 debtors impairment
The revised GRAP 104 took effect for annual periods beginning on or after 1 April 2025, which for a 30 June municipality means the 2025-26 financial year. Consumer debtors now have to be impaired on an expected credit loss basis, and the old provision matrix pulled off last year's spreadsheet will not support it.
What changed, and why it is a problem
Under the revised GRAP 104, impairment of consumer debtors moves to an expected credit loss model. The allowance has to be built from the municipality's own measured collection behaviour, segmented sensibly, adjusted for forward looking information and discounted. GRAP 108 governs statutory receivables such as property rates, and it works on a different basis again, using an indicator based assessment rather than the same ECL mechanics.
For most municipalities that is a significant change. The provision that has been carried for years was often a percentage applied by age band, set once and rolled forward. It cannot be reverse engineered into an ECL model, and the first year of application also requires a transition adjustment against opening accumulated surplus with disclosure to match.
This is also the single area where we see the most audit exposure right now, because the allowance is large, the methodology is new, and the evidence requirements are heavier than what most municipalities have been keeping.
What the engagement produces
- A segmented ECL model built from your own billing and receipting data, with segments and ageing bands that reflect how your debtors actually behave rather than a generic split.
- Measured loss rates derived from historical collection performance, with the calculation shown rather than asserted.
- Forward looking adjustment supported by published economic indicators, with the source and publication date of each one recorded.
- Discounting applied where the effect is material, with the rate and period documented.
- GRAP 108 treatment of statutory receivables handled separately and correctly, including the indicator assessment.
- Transition and first time adoption quantified, with the opening allowance reconciled back to the previous basis and the adjustment disclosed.
- Full disclosure pack covering the allowance reconciliation, ageing, credit risk and concentration disclosures, and sensitivity analysis.
- Working paper file that an auditor can re-perform, including a per account extract.
Segments that hold up
Segmentation is where most models are challenged. Grouping all residential consumers together produces a loss rate that describes nobody, and it falls apart as soon as the auditor asks why an indigent household and a paying suburban household carry the same rate.
We segment on measured behaviour, which usually means separating registered indigent households, deceased estates, government accounts, business and residential consumers, and treating each service where collection patterns differ. Each segment then gets its own measured rate, and the reason for the split is documented so it can be defended rather than argued in the audit.
Evidence is the deliverable
An impairment number on its own is worth very little. What gets the number through audit is the trail behind it: the billing data it was built from and proof that the extract was complete, the assumptions and who approved them, the calculation in a form that can be re-performed, and a record of what changed between runs.
We build this as a matter of course, which is why we developed 360DebtorsPro. Running the model in a controlled system rather than a spreadsheet means the assumptions, the working paper and the disclosure note all come from the same run and cannot drift apart.
Review as an alternative
If your team or another adviser has already built a model, we review it rather than rebuild it. A review looks at whether the segmentation is supportable, whether the loss rates come from the data or from judgement, whether forward looking information is evidenced, whether the GRAP 108 book has been dealt with separately, whether the transition adjustment is right, and whether the disclosure meets the standard. You get a findings report with the corrections needed and an assessment of audit risk on each point.
Frequently asked questions
When does the revised GRAP 104 apply to us?
It is effective for annual periods beginning on or after 1 April 2025. For a municipality with a 30 June year end, that is the financial year running from 1 July 2025 to 30 June 2026, so the 2025-26 annual financial statements are the first ones prepared on the new basis.
What is the difference between GRAP 104 and GRAP 108 for debtors?
GRAP 104 deals with financial instruments, which for a municipality mainly means consumer debtors arising from exchange transactions such as electricity and water sales. Those are impaired on an expected credit loss basis. GRAP 108 deals with statutory receivables such as property rates, which arise from legislation rather than contract, and it uses a cost model with an indicator based impairment assessment instead.
Can we keep using our existing provision matrix?
Only if it can be shown to produce an expected credit loss outcome, which in practice means the rates must come from measured collection behaviour, be adjusted for forward looking information and be discounted where material. A matrix with rates set some years ago and rolled forward each year will not meet that.
What data do you need from us?
A full billing and receipting extract at account level for a sufficient historical period, the debtors age analysis at year end, the indigent register, write off history, and the prior year allowance and its basis. We assess completeness of the extract before any modelling starts, because a model built on an incomplete extract fails at the first audit query.
How long does an impairment engagement take?
Usually three to five weeks from receiving clean data, including the transition run for the first year of application. The variable is almost always data quality rather than modelling time, so we start with a data assessment and tell you upfront if cleansing is needed first.
Discuss your municipality’s requirements
Ambition Partners Advisory is a Chartered Accountant (SA) led practice working with municipalities, municipal entities, government departments and public entities across South Africa. Tell us where you are in the reporting cycle and we will send you a scope, timeline and fee.