Guides.

US car loan interest deduction

• US tax · tax years 2025–2028The car loan interest deduction, explainedWho can deduct interest on a car loan under the 2025 law, how the $10,000 cap and the income phase-out work, and what you need for your return — with the worked examples from the Treasury regulations.8 min read · Last reviewed 30 Sep 2026
• Vehicles · VINHow to tell where your car was assembled from its VINThe plant that built your car is written into the 11th character of its VIN — not the first. How to read it, check it with NHTSA’s free decoder, and confirm it on the label in the window.7 min read · Last reviewed 30 Sep 2026

Saudi retirement

• Saudi Arabia · GOSI · English guideSaudi retirement age after the July 2024 changesSince 3 July 2024, your statutory retirement age depends on your age and your contribution record on that one day. Who keeps 60 Hijri years, who moves up the transition table, and who retires at 65.8 min read · Last reviewed 30 Sep 2026
• Saudi Arabia · GOSI · English guideEarly retirement in Saudi Arabia: months required and the new-law discountHow many months of contribution you need to retire before the statutory age after the 2024 amendments — and how the 1445H law’s 360-month rule, 3% discount, minimum pension and 100% cap work.8 min read · Last reviewed 30 Sep 2026

How we work

• Our methodHow we build and check our calculatorsEvery rule our tools use comes from a primary source, with the date we read it. How we turn those rules into calculators, how we try to break them, and how we fix our mistakes.7 min read · Last reviewed 30 Sep 2026

Guides explain rules to help you understand them. They are not tax, legal or financial advice; the agency’s decision is the one that counts.