US tax authority. US citizens abroad call the international taxpayer line about filing and refunds. Reach them from any country — no roaming, no SIM swap — straight from your browser.
Find IRS's current support number on their official contact page (linked below).
Add the United States country code +1 if it isn't already included.
Open Twin-Phone in your browser, paste the number and press call — we dial it for you.
IRS official contact page
Always confirm the current number here
Everything you need to know about TwinPhone.
From another country, dial your exit code, then +1 (United States), then IRS's support number — you'll find the current number on IRS's official contact page. Twin-Phone handles the dialing format for you: open the dialer in your browser, paste the number and call. No SIM swap or roaming needed.
IRS's customer-service line is based in United States, so it uses country code +1. Add your own exit/international-access code before it when calling from abroad.
With Twin-Phone, calls to United States numbers start from $0.02/min — pay-as-you-go, no subscription. That's far cheaper than roaming or hotel-phone surcharges when you're stuck on hold with support.
Always use IRS's official contact page (linked on this page) for the current, correct number — support lines change and we don't publish unverified numbers. Once you have it, call it cheaply from your browser with Twin-Phone.
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