Ask HN: What's the best way to accept recurring $5-20K/mo payments?

How many payments? Are they really going to be every month or are you going to be at the mercy of an A/P department?

My experience, the best way is to go the primitive route and get a hard check that you can deposit manually if there are not too many of them, though I hope you have too many.

The reason is that entities hate to pay this kind of money and there are always issues (late or checks that are light etc), so having as much traceable, physical data is huge.

This does not scale well but for a smaller entity it actually works quite well.

I assume you'd want to do automatic bank withdrawal like my mortgage company does each month.

ACH if you don't want to get ripped up on transaction fees.

To be a little more helpful: Basically for ACH you get charged per transaction.

http://www.achq.com/lz/ach-processing-solutions.php says $.25/transaction, though I've heard that you can find as low as $0.04/transaction.