We use Freshbooks for invoicing.
nextSTEPH accepts credit card payments
(MasterCard, Visa, American Express, Discover or e-check) via Paypal.
Click here to make an invoice payment.
https://checkout.google.com/buttons/logos?merchant_id=501872065931976&loc=en_US&f=png
We also accept payments via Google Checkout. Please contact us if you would prefer to be invoiced with Google Checkout.
nextSTEPH 