Provisional Tax IRP6 Checklist South Africa
Check management accounts, income estimates, PAYE credits, prior payments, and SARS profile details before submitting provisional tax IRP6 returns.
- Provisional tax is an advance payment system for income tax based on an estimate of taxable income.
- SARS guidance requires provisional taxpayers to request and submit first and second period IRP6 returns even where the result is nil.
- The estimate should be reviewed against current records, PAYE already paid, prior provisional payments, and known year-end adjustments.
- A top-up payment may be useful where the February estimate later proves too low and interest exposure needs to be reduced.
Provisional tax becomes risky when the business treats the IRP6 as a quick estimate instead of a tax-control checkpoint. The return may be short, but the number behind it should come from current records.
For South African companies, directors, freelancers, sole proprietors, rental-income earners, and trusts, the practical question is simple: can the estimate be explained if SARS, management, or a future tax return asks how it was built?
What to check before the IRP6 is submitted
Use the same review sequence every period:
- Confirm the taxpayer profile and tax year.
- Pull current income, expense, payroll, and investment records.
- Check prior provisional payments and PAYE already withheld.
- Adjust for known year-end items, once-off income, asset sales, and deductions.
- Compare the estimate to the basic amount and decide whether it is still reliable.
- Save the calculation, IRP6 confirmation, and payment proof together.
This makes provisional tax services easier to manage because the estimate has a visible file behind it.
Company IRP6 review points
Company provisional tax should not be estimated from turnover alone. Review:
- year-to-date management accounts
- expected revenue for the rest of the tax year
- gross margin changes
- payroll costs and director remuneration
- asset purchases and tax allowances
- finance costs and once-off income
- prior assessed losses or tax positions
- VAT turnover trends where relevant
That connects the IRP6 to business income tax returns, management accounts, and cash-flow management.
Individual and trust review points
Individuals and trusts often need a different evidence set. Review:
- rental income and expenses
- freelance or consulting income
- investment income
- capital gains events
- medical and retirement annuity information
- PAYE credits already withheld
- trust distributions or vesting decisions where relevant
The estimate should separate recurring income from once-off items so the taxpayer does not overreact to one unusual month or ignore a material event.
Provisional tax working file
| File item | Why it matters |
|---|---|
| Current income summary | Supports the estimated taxable income |
| Expense and deduction notes | Explains reductions from gross income |
| PAYE and prior payment record | Prevents duplicate tax payments |
| Management accounts or rental schedule | Shows the estimate was based on records |
| IRP6 confirmation | Proves what was submitted |
| Payment proof | Confirms the liability was settled |
The working file is important because provisional tax questions often arise months later, when the annual return is prepared.
When the basic amount is not enough
The basic amount can be useful, but it is not a substitute for judgement. It can be a poor fit where income has grown, profit margins changed, contracts were lost, a major asset was sold, rental income started, or the previous assessment is not a reliable base.
If the taxpayer knows the year is materially different, the estimate should reflect that reality. The file should show why the basic amount was used, adjusted, or rejected.
First, second, and top-up period table
| Period | Main purpose | Review focus |
|---|---|---|
| First IRP6 | Early-year estimate and payment | Use year-to-date results plus a realistic forecast |
| Second IRP6 | Main year-end estimate | Recalculate from current records before the tax year ends |
| Third or top-up payment | Reduce later interest exposure where needed | Compare final taxable income to provisional payments already made |
The first period is often the weakest because the year is still developing. Do not copy the prior year without checking current contracts, trading levels, salary changes, rental income, or investment income.
The second period usually carries more risk because more information is available and the estimate should be closer to the final result. By then, the taxpayer should have stronger management accounts, payroll data, VAT trends, rental schedules, or investment records.
The top-up period is not a replacement for careful first and second period work, but it can help where the February estimate later proves too low. The file should explain why the extra payment is being made and how the amount was calculated.
Management accounts and forecast review
For companies, the IRP6 estimate should start with management accounts. The income statement gives the starting point, but the reviewer should still check whether the accounts are current and whether obvious year-end adjustments are missing.
Review revenue by month. If turnover is rising or falling sharply, a straight-line forecast may be misleading. Check gross profit margin, payroll costs, rent, finance charges, depreciation, repairs, professional fees, and once-off expenses. Some accounting expenses may not be deductible in the same way for tax, and some tax allowances may not appear clearly in the management accounts.
Asset purchases need separate attention. A vehicle, machine, computer equipment purchase, or financed asset can affect accounting profit, cash flow, and tax allowances differently. The provisional tax file should note the tax treatment assumed.
Director loans and owner payments should also be reviewed. In owner-managed companies, drawings, reimbursements, dividends, and remuneration can be mixed up. The IRP6 estimate should not ignore transactions that may affect taxable income, PAYE, dividends tax, or the later company tax return.
Individual taxpayer review
Individuals who earn salary only may not need provisional tax, but many individuals have extra income that changes the position. Rental income, consulting income, freelance work, investment income, foreign income, capital gains, and trust distributions should be reviewed before IRP6 is filed.
The estimate should separate gross income from deductible expenses. For rental income, keep the lease, rental statement, bond interest, rates, levies, repairs, agent fees, insurance, and other property costs. For freelance or consulting income, keep invoices, bank receipts, business expenses, equipment purchases, and home-office support where relevant.
PAYE credits should be included carefully. If an individual has employment income and other taxable income, PAYE already withheld can reduce the provisional tax payment. The file should show the payslip or IRP5 estimate used so the credit can be explained later.
Capital gains are often missed because they may not feel like trading income. If a property, shares, crypto asset, business interest, or other asset was sold during the year, the provisional tax estimate should consider the gain before the annual return arrives.
Risk review before submission
Before submission, ask whether the estimate would still make sense if SARS queried it later. The file should show current data, the assumptions used, the reviewer, and the reason for any major movement from the prior year.
If the taxpayer is estimating lower income than the basic amount or prior year, the support should be stronger. Keep evidence of lost contracts, reduced sales, higher costs, vacancies, repairs, or other reasons for the lower estimate.
If the taxpayer is estimating higher income, the review should also support cash planning. The IRP6 payment may be correct technically, but the business still needs enough cash for VAT, payroll, suppliers, and operating costs.
Payment and cash-flow planning
The IRP6 calculation should be reviewed before cash is committed elsewhere. A business that waits until deadline week may discover that the tax payment competes with payroll, suppliers, VAT, or loan repayments.
For owner-managed companies, the provisional tax review should sit beside cash-flow forecasting. That helps directors see whether tax cash needs to be reserved before the final return or assessment lands.
Records to keep after filing
After submission, save the IRP6 confirmation, payment proof, calculation schedule, source reports, assumptions, and approval note together. If eFiling access changes or a new accountant takes over later, this file explains the estimate without relying on memory.
The annual tax return should then compare the final taxable income to the provisional estimates already submitted. That comparison helps identify whether the taxpayer is consistently underestimating, overestimating, or filing too close to deadline without enough current data.
For recurring clients, use the annual comparison to improve the next provisional cycle. If the February estimate was weak because management accounts were not ready, fix the monthly accounting process before the next IRP6 deadline.
Internal links to use next
- Provisional Tax Services
- Business Income Tax Returns
- Personal Income Tax Returns
- Management Accounts
Practical takeaway
An IRP6 estimate should be defensible, current, and saved with its support. If the taxpayer cannot explain the number, the estimate is not ready.

