Q&A for Foreigners in Korea

• I have heard dental work in Korea is much cheaper than in Western countries?
• Can I go straight to a big hospital in Korea, or do I start at a local clinic?
• I work on an E-7 visa — can I bring my wife and child from home to Korea?
• How do I use the HomeTax (홈택스) website to file taxes, check my tax records, and get tax certificates as a foreigner in Korea?
• QR codes seem to be used for everything in Korea?
• Koreans seem to rent water purifiers and bidets — can foreigners sign up too?
• How can foreigners attend Korean baseball (KBO) games?
• How do I leave Korea temporarily but have ongoing legal and financial matters that require someone to act on my behalf?
• Korea is famous for skincare and dermatology?
• How do shops, transit, and banks operate during Seollal and Chuseok holidays?
• How do I address coworkers in a Korean company? Titles and honorifics confuse me.
• I want a budget MVNO plan to cut my phone bill — can foreigners sign up?
• On an E-9 visa, can I quit my current workplace and move to a different one?
• Korea has many national parks but I do not know where to start?
• What extracurricular activities are available for children in Korea beyond academics, and how do I get my child involved?
• I moved — when and where must a foreigner report a change of address?
• How do I furnish my apartment in Korea?
• How do I get an apostille so my home-country diploma works in Korea?
• Starting a part-time job — what must I check in the work contract?
• How do I pay electricity, water, and gas bills in Korea — is auto-pay worth it?