Pension Reform 2023: New ISP and How to Recalculate Your Payroll
The Pension System Changes at Its Core
In late 2022, the Legislative Assembly approved a comprehensive pension system reform that transforms how companies calculate and report employee contributions. The most visible change is institutional: the Salvadoran Pension Institute (ISP) is created, absorbing the functions previously handled by private AFPs. Pensions move from private to state administration.
But for business owners, the change that has immediate impact isn't who manages pensions — it's how much they cost. The reform modifies both employer and employee contribution percentages, meaning the payroll calculation for every company with employees changes starting January 2023. If you don't update your systems and processes on time, you'll pay wrong, report wrong, and face the consequences.
This is not a minor adjustment. It's a reform that affects every company with at least one employee on payroll, regardless of size or sector. From the SME with three workers to the large company with hundreds of employees, everyone must adapt.
How It Affects Your Payroll Calculation
The most direct impact is on labor cost per employee. When employer contribution percentages change, the amount your company pays monthly into the pension system changes. Depending on how rates adjust, this could mean an increase in your payroll expense that you hadn't budgeted for. For companies with many employees, the cumulative difference can be significant.
On the employee side, the worker contribution also changes. This affects the net salary each worker receives. Although it's not your money being deducted, it's your responsibility as an employer to correctly calculate the withholding and remit it to the ISP. If you withhold too much, you owe the employee. If you withhold too little, you owe the ISP. Neither scenario is good.
Your payroll system — whether specialized software, a spreadsheet, or a manual process — needs to be updated to reflect the new percentages. This includes not just the contribution calculations, but also the reports you generate for the ISP, your employees' pay stubs, and the associated accounting records. An incorrect percentage in your system multiplies by every employee and every pay period, generating differences that accumulate month after month.
There's also an impact on monthly cash flow. If the employer contribution increases, you need more cash available each pay period to cover payroll. For SMEs operating on tight margins, that increase may force adjustments to the operating budget or finding efficiencies elsewhere.
Steps to Update Your Payroll Without Issues
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Review the new contribution percentages. Consult the reform decree to find the exact employer and employee contribution rates that apply starting January 2023. Don't rely on secondhand information: verify directly from the official source. Percentages vary by salary range, so make sure you understand how they apply to each income level among your employees.
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Update your payroll system before the first pay period in January. If you use payroll software, contact your provider to confirm they already have the update with the new percentages. If your accountant handles it manually or with spreadsheets, make sure the formulas reflect the changes before running the first payroll of the year. There's no room to do it "later and correct": the first 2023 payroll must already be correct.
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Communicate the changes to your employees. When a worker receives their first pay of the year and sees their net salary has changed, they're going to ask questions. It's better to get ahead of it. Inform your team about the changes to the employee contribution, explain why their net salary looks different, and clarify that it's a legal provision that applies to all workers in the country. Clear communication prevents confusion, rumors, and unnecessary frustration.
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Verify that your ISP reports reconcile. With the transition from AFPs to the ISP, reporting formats and procedures may change. Make sure the reports you send to the new institute match what you calculate internally and what you deduct from employees. Any difference between what's reported and what's paid generates observations that are later difficult and costly to correct.
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Adjust your operating budget if necessary. If the employer contribution went up, that increase affects your total labor cost. Review your annual budget and determine whether you need to make adjustments to absorb the new expense. It's better to identify that financial pressure in January than to discover it in June when cash flow is already strained.
Dates That Allow No Delay
The reform was approved in December 2022 and the new contribution percentages took effect on January 1, 2023. That leaves no time for testing or gradual implementation. The first January pay period must be processed with the new percentages correctly applied.
From that date forward, all payrolls, reports, and contributions must be directed to the ISP, not to the former AFPs. If your system still has payments configured to go to an AFP, you need to make the switch immediately.
Every pay period is an opportunity to generate an error if the percentages aren't updated. And those errors accumulate: a half-percentage-point difference in the employer contribution, multiplied by all your employees and 24 pay periods, becomes a significant amount you'll have to regularize sooner or later.
A Reform That Demands Immediate Action
The pension reform is not something you can evaluate calmly and decide later. The deadlines are strict, the first payroll of the year must already reflect the changes, and errors have direct consequences: ISP penalties, discrepancies with employees, and accounting mismatches that complicate the fiscal year-end.
If you need help updating your payroll, verifying that percentages are correct, adjusting your reports to the new ISP, or recalculating your labor expense budget, at Contabilidad Hidalgo we're ready to help. We'll make sure the transition is clean and your first payroll of the year comes out without errors.
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