What happens if I do not pay the fees due for my international application?

If you have not paid the fees for your international application, or not paid them in full, by expiry of the one-month time limit from the date on which the receiving Office received your application, the receiving Office will invite you to pay the amount required to cover those fees within a time limit of one month from the date of the invitation and may also require the payment, for its own benefit, of a late payment fee in accordance with Rule 16bis.2 PCT (see Form PCT/RO/133). 

If you have still not paid the fees when this additional time limit expires, the receiving Office will declare your international application withdrawn under Article 14(3) PCT and notify you accordingly (see Form PCT/RO/117).