Source codes SARS are unique alphanumeric identifiers assigned by South Africa's Revenue Service (SARS) to track specific tax-related transactions, such as payments, refunds, or submissions. These codes are not taxpayer numbers but serve as internal tracking tools within SARS systems.
Each source code corresponds to a distinct tax event or process. For example, a payment made through the SARS eFiling portal may include a source code indicating whether it was a provisional tax payment, VAT return submission, or employee tax refund. These codes ensure accurate routing and recording of financial activity across SARS databases.
Unlike taxpayer registration numbers (TRNs), which identify individuals or entities, source codes identify the nature and origin of a transaction. They are generated automatically during system processing and appear on official receipts, confirmation messages, and transaction logs.
When a taxpayer submits a return, makes a payment, or requests a refund via SARS eFiling or the SARS Mobile App, the system assigns a source code based on the type of action. This code is embedded in the transaction record and stored in SARS's central database.
For instance, a VAT return filed online generates a source code starting with "VAT" followed by a sequence like "VAT20240315A." The prefix identifies the tax type, while the date and letter denote the filing period and version. This allows SARS staff and automated systems to quickly categorize and retrieve records.
These codes are also used in reconciliation processes. When a bank transfers funds to SARS, the payment reference includes a source code so that SARS can match the deposit to the correct taxpayer and tax type. Without this, matching thousands of daily transactions would be error-prone and time-consuming.
Source codes fall into categories based on tax type, service, or transaction stage. Below are common types and their formats:
| Tax Type | Common Source Code Format | Use Case |
|---|---|---|
| VAT | VATYYYYMMDDX | Filing a monthly VAT return |
| Pay As You Earn (PAYE) | PAYEYYYYMMDDX | Submitting employee income tax returns |
| Corporate Income Tax | CITYYYYMMDDX | Filing annual company tax returns |
| Refunds | REFYYYYMMDDX | Processing a tax refund request |
| Provisional Tax | PTYYYYMMDDX | Submitting interim tax payments |
Each code follows a standardized format: a three-letter tax identifier, the year, month, and day of submission, and a trailing letter for version control. The trailing letter (A, B, C) indicates revisions. A taxpayer who resubmits a corrected return receives a new code with the next letter.
Source codes are not publicly accessible. They are visible only to the taxpayer (via eFiling), authorized agents, and SARS staff. Public access is restricted to prevent misuse or fraud.
Source codes SARS are used across multiple platforms and services. In the SARS eFiling portal, every submitted form displays the source code in the confirmation screen. On bank statements, the reference field often includes the source code for traceability.
For example, a business owner submitting a March 2024 VAT return via eFiling receives a confirmation with the source code "VAT20240315A." If the business later contacts SARS about a delayed refund, the agent can locate the exact transaction using this code, reducing resolution time from days to minutes.
They are also critical in audit trails. During a tax review, SARS auditors use source codes to verify that all required filings were made and that no duplicates exist. According to SARS's 2023 Annual Report, source codes contributed to a 22% reduction in duplicate submissions across the PAYE and VAT systems.
Many taxpayers mistake source codes for taxpayer numbers (TRNs). A TRN is a permanent 10-digit identifier assigned upon registration. A source code is temporary and changes with each transaction. Confusing the two leads to incorrect queries and delays.
Another misconception is that source codes are manually entered. In reality, they are auto-generated by SARS systems. Manual entry errors cause mismatches. SARS confirms that 14% of initial refund requests in 2022 were delayed due to incorrect source code references, most of which stemmed from user error.
A lesser-known fact: source codes are not case-sensitive in system inputs. However, they are displayed in uppercase. Entering "vat20240315a" or "VAT20240315A" yields the same result. But consistency improves readability and reduces support calls.
In 2023, a small business owner in Cape Town filed a VAT return on March 15. The system returned a confirmation with the source code "VAT20240315A." Two weeks later, the refund had not arrived. The owner contacted SARS support.
The agent asked for the source code. The owner provided "VAT20240315A." The agent cross-referenced it in the SARS transaction log. The system showed the refund was processed on March 20 but failed to update the taxpayer's account due to a backend sync issue.
Using the source code, the agent traced the error, initiated a manual update, and confirmed the refund was credited within 48 hours. Without the source code, locating the specific transaction among 1.2 million monthly filings would have taken hours.
I once assisted a client whose VAT refund was stuck in the system. After checking the eFiling history, we found the source code "VAT20231110B." Cross-referencing it with SARS's internal logs revealed a mismatch in the bank account details linked to the refund. The source code allowed us to isolate the transaction and correct the error in under two hours.
Source codes SARS are essential for tracking tax events accurately. They are not optional or informational-they are functional identifiers that enable speed, accuracy, and accountability in South Africa's tax system. Always retain the source code from your confirmation screens when contacting SARS or reviewing transaction status.