A paper needs to be paid in full before it can go to print (including advertisements). We bill advertisers 30 days ahead of each publication, and follow up until payment is received. But if an ad doesn’t pay in time, that ad credit will not appear on your invoice (you will need to cover it). You can delay printing until payment is received, remove the ad from the paper, or let the unpaid ad run (and pay the difference on your own bill). We can pursue unpaid ads for 90 days after your paper prints, and give you the ad credit (or a cash reimbursement) when it’s paid.