First, like tptacek says, you don't have to negotiate this point, it's just how you do business. More importantly, there are many kinds of clients for which bi

First, like tptacek says, you don't have to negotiate this point, it's just how you do business. More importantly, there are many kinds of clients for which billing daily makes more sense. These also happen to be a type of client you'd really want to have. Basically any large enterprise company that is used to paying a monthly salary to programmers, wouldn't even care about these things. I would usually tell clients "We bill X per hour, billed daily at 9 hours per day, which comes out to X per day" or something similar. I would actually quote the hourly rate because, at least in my market, this is the way everyone immediately judges your cost (and value). (This also depends on what exactly you're selling - for extremely high-end freelancing work, I'd probably quote the final price, since I'd rather de-emphasize price and emphasize deliverables, but for basic programming work you will be compared to other programmers).