$20 monthly bill credit: Limited-time offer; subject to change. Qualifying credit; Go5G Business Plus, Business Unlimited Ultimate, or equivalent voice line; and new Business Internet line required. If you have cancelled Internet lines in past 90 days, you may need to reactivate them first. Credits may take up to 2 bill cycles; credits will stop if you cancel any lines or change plans. Limit 5/account. May not be combined with some offers or discounts (e.g., Price Lock); see FAQs at T-Mobile.com/plans. Business Internet: During congestion, Small Business Internet customers may notice speeds lower than other customers due to data prioritization. Not available in all areas; customers ineligible for 5G Small Business Internet may be eligible for 4G LTE Small Business Internet or other fixed wireless options. Plus taxes & fees for accounts currently paying for a T-Mobile wireless line with additional taxes & fees or accounts with 13+ lines: Monthly Regulatory Programs (RPF) & Telco Recovery Fee (TRF) totaling $1.40 per data only line ($0.12 for RPF & $1.28 for TRF) apply; taxes/fees approx. 3-12% of bill. Qualifying account and credit approval required. For use only with T-Mobile Gateway at location provided at activation. Return gateway undamaged or pay up to $370. Video streaming resolution depends on available speeds. For best performance, leave video streaming applications at their default resolution setting. Not compatible with some live TV streaming services. With AutoPay discount using eligible payment method for lines 1-8 on account. Without Autopay, $5 more/line/mo; debit or bank acct req'd. May not be reflected on 1st bill. Coverage not available in some areas. Network Management: Service may be slowed, suspended, terminated, or restricted for misuse, abnormal use, interference with our network or ability to provide quality service to other users. See T-Mobile.com/OpenInternet for details. See Terms and Conditions (including arbitration provision) at www.T-Mobile.com for additional information.