There's No Standard Pension in Saudi Arabia
Expat employees in Saudi Arabia are not enrolled in GOSI's pension scheme, only Saudi nationals participate in that. Instead, you'll accumulate an End of Service Benefit (EOSB), a lump-sum payout based on final salary and years of service, while managing your actual retirement savings independently through US-based accounts.
The End of Service Benefit (EOSB)
EOSB is calculated under Saudi labor law based on your final salary and total years of service, paid as a lump sum when you leave your employer, whether by resignation, termination, or retirement.
The IRS treats EOSB as deferred compensation, not earned income. That means it is fully taxable as ordinary income in the year you receive it, and the FEIE cannot shield it, regardless of how many years it accrued over. A benefit that took a decade to build lands as a single taxable event.
Because Saudi Arabia has no Totalization Agreement, none of your GOSI occupational-hazard contributions (paid entirely by your employer, at 2% of contributable wage) count toward US Social Security in any way. GOSI simply isn't a retirement-planning factor for expats at all.