EMP501 Reconciliation 2026: SARS confirms 21 September to 31 October, and what changed this year

The EMP501 reconciliation for the interim period runs from 21 September to 31 October 2026. SARS confirmed the dates in a notice dated 31 August 2026. It covers 1 March to 31 August 2026, is filed on eFiling or e@syFile Employer, and carries a late penalty of one percent of annual PAYE per month, up to ten percent.

Two weeks ago we published a calendar of every SARS deadline from September to March and flagged 21 September as a planning date rather than a confirmed one, because the reconciliation specification says the final periods are subject to readiness. SARS settled it the same day. The "What's New" entry on the Pay As You Earn page, dated 31 August 2026 and headed "Employer Interim Declarations (EMP501): 21 September to 31 October 2026", is the employer letter for this season. Everything below is read from that letter and the notices beneath it, on 14 September 2026. Nothing is taken from a payroll vendor's summary.

What is the EMP501 interim reconciliation?

Twice a year an employer has to prove that three sets of figures agree: the monthly EMP201 declarations it filed, the payments it actually made, and the tax certificates it is about to issue to staff. The interim reconciliation does this for the first half of the tax year. SARS's own wording is that "all employers must reconcile their declarations for the first six months of the reconciliation year, 1 March 2026 to 31 August 2026, and submit their EMP501 on eFiling or e@syFile Employer".

The letter lists three things a correct EMP501 must reflect:

1. Reconciled PAYE, UIF and SDL values, "matching your previously submitted EMP201 returns". Where those values differ from the interim IRP5/IT3(a) certificates the system generates, "employers must amend the prepopulated figures to the correct amounts".
2. Actual payments made during the period, "excluding any penalties and interest".
3. Accurate payroll and employee information: payroll data, employees' tax reference numbers, and the IRP5/IT3(a) certificates for 1 March to 31 August 2026.

The first item is where most reconciliations go wrong, and it is also the one you can settle before the period opens. If your EMP201 values were captured from payroll at the moment each month's run was approved, the six of them already agree with your certificates. If they were typed into eFiling from a payslip export, the reconciliation is where you find out which month was typed wrong.

When does the 2026 interim period open and close?

It opens on Monday 21 September 2026 and closes on 31 October 2026. The close is a Saturday. SARS's deadline rules move a due date that falls on a non-business day backwards, not forwards, so treat Friday 30 October as the last working day to fix a rejected submission. Our deadline calendar goes through the six weekend shifts between now and March, and this is the first of them.

One detail is worth noticing about the timing of the announcement itself. Last year's equivalent letter, for the 22 September to 31 October 2025 period, is dated 15 September 2025, one week before that window opened. This year's is dated 31 August, three weeks ahead. If you run payroll for other people, that is three weeks of notice you did not have last year.

What changed for the 2026 interim reconciliation?

The letter has a section headed "Key Changes for 2026". There are four items in it, and a fifth that is not new but is now enforced.

Change	What SARS says	What it means for a small employer
New e@syFile Employer build	"SARS plans to release the updated e@syFile Employer build for the Employer Interim Reconciliation in mid-September 2026. Employers must ensure that they download and use the latest version once it is formally released."	Do not submit from the version you used in May. Check for the release in the week of 14 September and again on 21 September.
Business Requirements Specification V25.3.0	The BRS "for the Employer Interim Reconciliation submission period 2026-08" is on the SARS website. The 10 June 2026 notice beneath the letter says this release amended the validation rules for source codes 3040, 3067, 3698 and 4150.	Your payroll software must be on a build that carries V25.3.0. If it is not, certificates using those four codes will fail validation.
ITREG source code	"The updated BRS includes a new source code for ITREG to help mitigate duplicate Income Tax registration for employees."	Registering a new employee for income tax through payroll is less likely to create a duplicate record against them.
Validation and description amendments	"Minor amendments have been made to source code validations and descriptions."	Review the changes before you prepare the submission, not after it rejects.
Income tax numbers mandatory	"Income Tax numbers have been strictly enforced in e@syFile Employer and eFiling since the February 2026 employer Filing Season." Missing or invalid numbers "may delay processing and may result in EMP501 submissions being rejected".	Every employee on the payroll between March and August needs a valid tax reference number on file before you open the submission.

The tax number rule has a longer history than the letter shows. A 30 January 2026 notice on the same page states that "with effect from the 2026 reconciliation (EMP501) period for employers, EMP501 submissions without required TRNs will not be accepted by SARS", and a 29 May 2026 notice added FAQs for the case where an employee cannot be contacted. So this is the second reconciliation period under the rule, and the first interim one.

How do you get a missing tax reference number?

The letter gives two routes. Employers can use "the ITREG/BundleReg process on eFiling or e@syFile, the Tax Reference Number Enquiry Service on eFiling, or visit a SARS Service Centre, with an appointment, to register or request employees' numbers". Employees can register or retrieve their own number on the SARS website under the Individuals section. Either way, it is a September task. In the last week of October every other employer with the same gap is in the same queue.

Which channel must you use?

• e@syFile Employer: "available to all employers and can be used regardless of the number of employee tax certificates being submitted".
• SARS eFiling: available to employers with fewer than 50 employees, "subject to a maximum of 50 IRP5/IT3(a) certificates per submission".
• Service centre: only as an exception, for employers with five or fewer certificates who are unable to submit through either channel, and only with a booked appointment.

After submitting, SARS asks employers to "regularly monitor the status of their submission and review the PAYE Dashboard". A submission with data errors is treated as not submitted, which is the point at which the penalty clock below starts.

What does a late or wrong EMP501 cost?

The letter is explicit, and the numbers are SARS's, not ours.

• Late submission: administrative penalties "equal to 1% of your annual PAYE", increasing "by 1% for every month the return remains outstanding, up to a maximum of 10%".
• Corrections that reveal a shortfall: "any shortfall is attributed to the last month of the reconciliation period", so an under-declaration in March is penalised as if it were August's.
• Employment Tax Incentive: employers with unused ETI "will forfeit the ETI for non-submission or where the employer has a non-compliant status".
• Criminal offence: wilful or negligent failure to submit EMP201 or EMP501 returns, failure to deduct PAYE or pay it over, failure to deliver IRP5 or IT3(a) certificates to staff, or using deducted tax for any other purpose, each carries "a fine or imprisonment for up to two years" on conviction.

The ETI line is the one growing businesses miss. An employer claiming the incentive on young staff can lose the unclaimed balance for the half year through a late interim submission, which turns a filing delay into a payroll cost. It also feeds the compliance status that the tax compliance status PIN reports to anyone you tender to.

How does the reconciliation stop being an October rebuild?

An EMP501 is a comparison of records you already hold. The work in October is large only when those records were never captured as records. Four changes remove most of it, and none of them is a software purchase.

1. Capture the EMP201 values at payroll approval, once. PAYE, UIF and SDL for the month exist the moment the run is approved. If the approved run writes those three figures and the payment reference to a ledger that the reconciliation reads, September's job is to check six rows, not to reconstruct them. Our payslip requirements post covers what the run itself must contain.
2. Hold the tax reference number as a field on the employee record, with a blank-check. An onboarding flow that refuses to complete without a valid number, or that files the ITREG request the day the person starts, means the interim period never opens with a gap. The same record carries the UIF details from UIF registration.
3. Put the period on a reminder engine, not a calendar entry. A system holding the rule "31 October, moved back to the preceding business day, with a warning fourteen days out and a second at seven" fires on Friday 30 October by itself. A typed calendar entry says Saturday and says nothing when the software build changes. This is the same mechanism our compliance checklist hub describes for every other dated obligation, and the automation map shows where it sits in the order of things to build.
4. File the evidence against the obligation. The submitted EMP501, its acknowledgement, the PAYE Dashboard status and the payment proofs belong in one place, attached to the period they satisfy, so that the annual reconciliation in April starts from a record and not from a search. SARS record keeping sets out how long that record has to survive.

Done this way, the interim reconciliation is a review that takes an afternoon. Done in the last week of October from payslip exports, it is a rebuild that takes a week and produces the shortfall SARS attributes to August.

Frequently Asked Questions

When is the EMP501 interim reconciliation due in 2026?

The submission period is 21 September to 31 October 2026, confirmed by SARS in a notice dated 31 August 2026. Because 31 October is a Saturday, treat Friday 30 October as the last working day to submit or correct.

Which period does the 2026 interim EMP501 cover?

The first six months of the reconciliation year, 1 March 2026 to 31 August 2026. It reconciles the PAYE, UIF and SDL declared on the six EMP201 returns against actual payments and the interim IRP5/IT3(a) certificates for the same months.

Can I submit the EMP501 on eFiling instead of e@syFile?

Yes, if you have fewer than 50 employees, with a maximum of 50 IRP5/IT3(a) certificates per submission. e@syFile Employer is available to every employer regardless of certificate count, and SARS is releasing a new build for this period in mid-September 2026.

What happens if an employee has no income tax number?

Since the February 2026 employer filing season, missing or invalid income tax numbers can cause an EMP501 to be rejected. Register or retrieve the number through ITREG or BundleReg on eFiling or e@syFile, or the Tax Reference Number Enquiry Service, before the period opens.

What is the penalty for a late EMP501?

An administrative penalty of one percent of annual PAYE, rising by one percent for each month the return stays outstanding, capped at ten percent. Employers claiming the Employment Tax Incentive also forfeit any unused ETI for the period.

The short version

SARS has confirmed the interim EMP501 window: 21 September to 31 October 2026, covering March to August, on a new e@syFile build and BRS V25.3.0, with income tax numbers enforced and a one percent per month penalty for lateness. The reconciliation is only hard when the monthly figures, the tax numbers and the evidence were never captured as records in the first place. If you want to see where your payroll figures are typed twice, which employee records have gaps, and which deadlines still live in someone's head, that is what a Business Autopsy is for, and a discovery call is where it starts.

Source, read directly on 14 September 2026: South African Revenue Service, Pay As You Earn page, "What's New" notices dated 31 August 2026 ("Employer Interim Declarations (EMP501): 21 September to 31 October 2026"), 10 June 2026 (BRS V25.3.0 source code amendments), 29 May 2026 (income tax number FAQs), 30 January 2026 (tax reference number requirement) and 15 September 2025 (the 2025 interim letter, for the date comparison). Every quoted phrase is SARS's own wording. No payroll vendor material is used and no figure in this post is ours.