Tax Computation and Deferred Tax Agent
The Tax Computation and Deferred Tax Agent starts from the AFS and trial balance to prepare the annual income tax computation, adding back non-deductible items, replacing accounting depreciation with tax allowances such as s11(e), s12C and s13, and applying assessed losses and limitations such as s23M. It then prepares the IAS 12 current and deferred tax notes at the 27% corporate rate, including the tax rate reconciliation, and reconciles the computation to the ITR14.
Ideal forTax managers
The difference
From 4-6 hours per company to 1.5-2 hours
Your tax team spends its time on the judgement calls, such as recognising deferred tax assets, rather than rebuilding the same schedules each year.
Done by hand
4-6 hours per company
With the Vanine agent
1.5-2 hours
Time returned to your team
65%
Indicative figures. We measure your own baseline in the first fortnight so the numbers you see are yours.
One set of numbers
Mismatches between the computation, the AFS tax note and the ITR14 are a common trigger for SARS queries. The agent ties all three together and shows the reconciliation.
Allowances applied consistently
Tax asset registers and allowance rates drift from year to year. The agent applies the write-off periods from SARS Interpretation Note 47 consistently and flags assets that need a decision.
Deferred tax without the spreadsheet maze
Deferred tax workings are often rebuilt manually every year. The agent carries temporary differences forward and explains each movement for the auditor.
Capabilities
A tax computation and deferred tax note that agree to the ITR14 first time.
Built for tax managers, financial accountants, CFOs and accounting practices preparing ITR14 returns and IAS 12 tax notes for South African companies.
Computation from the AFS
Starts from accounting profit and adds back non-deductible items such as fines, donations above the s18A limit and capital expenditure, with the source of each adjustment.
Capital allowances
Calculates s11(e), s12C, s13 and s12B allowances from the tax asset register, separately from IFRS depreciation under IAS 16 and IAS 38.
Limitations and assessed losses
Applies the assessed loss rules and interest limitations such as s23M on connected-party debt, showing the amounts carried forward.
Current tax note
Prepares the current tax charge, provisional tax paid on IRP6 and the closing payable or receivable, reconciled to the SARS statement of account.
Deferred tax under IAS 12
Calculates temporary differences on assets, provisions, leases and losses, assesses recognition of deferred tax assets and drafts the tax rate reconciliation.
ITR14 reconciliation
Maps the computation to the ITR14 fields and flags differences, so the return is ready for review and submission on eFiling.
How it works
From your systems to a result you sign off
Your tax manager reviews the computation and judgements, the directors approve the AFS, and a registered tax practitioner submits the ITR14 on eFiling.
Connect the places your tax computations already live.
The trial balance and draft AFS from CaseWare, Draftworx or your ERP, the fixed asset register, the prior-year computation and the SARS statement of account. Already use something else? We connect that too.
- OpenAI Frontier
- Your own AI platform or models
- Microsoft 365 (Teams, SharePoint, Outlook, Excel)
- CaseWare and Draftworx
- SAP, Sage, Syspro, Dynamics 365, Xero
- Fixed asset registers in your ERP or Excel
- SARS eFiling-ready ITR14 workings
Runs on request in Teams or OpenAI Frontier once draft AFS are available, using the models your organisation approves.
A tax computation, deferred tax working and IAS 12 note drafts in Excel, plus an ITR14 reconciliation stored with the year-end file.
Step by step
- 01
Draft AFS and the trial balance are ready for the year-end.
- 02
The agent builds the tax computation, adjustments and capital allowances.
- 03
It applies assessed losses and limitations and calculates current tax.
- 04
It prepares the deferred tax working, IAS 12 notes and ITR14 reconciliation.
- 05
Your tax manager reviews and approves, and a registered tax practitioner submits on eFiling.
Deployment
Runs inside the tools your team already uses
The same agent and the same cited output, delivered three ways: through the AI assistant you have rolled out, on a model you host yourself, or inside your own software.
In the frontier assistant you already pay for
We publish the agent as an MCP server. Add it as a connector and your team calls it from the chat they use every day, with no new tool to learn.
"Build the income tax computation"
- entity
- Engineering company
- year
- FY2025
On a model you host yourself
Run the agent on open-weight models in your data centre or private cloud. Your tax computations never leave your network, which keeps POPIA and data residency straightforward.
- Llama
- Mistral
- Ollama
- or any OpenAI-compatible endpoint
Inside your own software
Trigger a run from your own workflows, and push the finished output into your ERP, GRC or reporting systems. We build the integration with your team.
- REST API
- Webhooks
- Batch jobs
- Embeddable review panel
Governed the same way, every route
Whichever way your team reaches the agent, identity, permissions and audit stay with your existing controls.
- Single sign-on through Entra ID, Okta or Google Workspace
- Reads only the documents each user is already allowed to open
- Every tool call written to an audit log you can export
How we deliver it
One agent, three ways to hold it
Start where your team already works, then take it as far into your systems as the value justifies.
DATA SECURITY & PRIVACY
Your tax computations stay yours.
The agent runs inside your tenancy, reads only what each task needs, and never trains on your tax computations. Every step is logged so your auditors can see exactly what it touched.
Built for regulated work.
+YOUR TAX COMPUTATIONS NEVER LEAVE YOUR ENVIRONMENT
More agents
More agents we build for South African enterprises
Each one is built on the same foundation: your documents, your rules, and your people signing off.
Precision AI for Institutional Workflows
