About BASIC SLSP
A practical Excel-to-RLF preparation workspace for Philippine businesses, bookkeepers, and accounting teams.
Purpose of the system
BASIC SLSP helps users prepare structured Sales and Purchases transaction data and generate BIR RELIEF-compatible RLF files with less repetitive manual work. It is intended to make workbook preparation, data checking, and monthly review easier—not to make tax decisions for the user.
What problem does it help with?
- Reduces repeated uploads by supporting a multi-month workbook workflow where available.
- Provides templates to keep transaction data in a consistent structure.
- Helps identify potential data issues in names, TINs, addresses, and required fields.
- Shows validation results and a preview of valid records before RLF generation.
- Provides a place to manage client profiles and saved TIN reference records where enabled.
How it works
- Choose Sales or Purchases.
- Download the matching Excel template and enter the records in the appropriate monthly worksheet.
- Upload the workbook and confirm the taxpayer profile and tax year.
- Review each month's status, warnings, errors, and first 10 valid records.
- Correct source data as needed, then generate and download the RLF for a month that passes the required checks.
- Verify the generated file in the BIR RELIEF application before filing.
What the system does not do
BASIC SLSP is not an official BIR service, does not submit tax returns on your behalf, and cannot guarantee that a generated file will be accepted. Users remain responsible for source data accuracy, tax treatment, compliance, and final verification.