Johnston Law is a tax law firm in Addington, Christchurch, built around migrant and expat tax. Its work is for people moving to New Zealand, leaving it, or working across borders, and for employers relocating staff. The firm also does property tax, GST, and matters with Inland Revenue such as investigations, debt recovery and audits. Its director is Julia Johnston, and the firm's site lists national and international awards for its migration and tax work, including recognition in 2025 and 2026. The firm also covers relationship property, with contracting out agreements, separation agreements and property division, and it prepares wills and enduring powers of attorney.
The firm is on the third floor at 22 Moorhouse Avenue. Its website describes its advice as clear, practical and free of jargon, and it says it tailors each matter to the client's situation. Within a kilometre there are six other law firms on Open Locally. Godfreys Law is the nearest rated one, at 4.7 from 145 reviews, and Addington Law Centre is 4.5 from 12 reviews. For someone moving to New Zealand who needs a tax lawyer who knows the migrant rules, Johnston Law is the specialist to start with.