FAQs for Dog Earplugs FAQs for Dogs Ear/Noise Health - Coming Soon! Billing & Shipping Questions Do you charge sales tax? We do charge a Sales Tax for WA state residents. What payment options do I have? You can pay with Visa, and MasterCard. We also accept payment through PayPal.Unfortunately at this time we aren’t able to accept prepaid cards or PayPal Credit, cash, or checks.