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What is reasonable time to allow to pay invoice?
I'm putting a contract together. I had a previous verbal agreement with my client that they pay my invoices within 2 weeks (issued on a weekly basis), but it feels too long. So I want to have a clause in the contract to reflect a shorter period  say 1 week. What is a reasonable amount of time to pay weekly invoice.
I put net 15 days on invoices.
15 days is customarily the minimum. Remember payment may need to be routed through accounting, or the mail if a check is sent. You can't expect or require immediate payment in most cases, even though it's nice when clients do that.
For a weekly invoice, with 15 days you'll always be a week behind. The other option would be to request the first week up front (at contract signing), that way you are always a week ahead and can stop work if payment hasn't been received for the the coming week.
Related: What is the correct steps in resolving lack of payment?
What is reasonable in the circumstances depends on what you f

I put net 15 days on invoices.
15 days is customarily the minimum. Remember payment may need to be routed through accounting, or the mail if a check is sent. You can't expect or require immediate payment in most cases, even though it's nice when clients do that.
For a weekly invoice, with 15 days you'll always be a week behind. The other option would be to request the first week up front (at contract signing), that way you are always a week ahead and can stop work if payment hasn't been received for the the coming week.
Related: What is the correct steps in resolving lack of payment?
20170914 19:14:22 
What is reasonable in the circumstances depends on what you feel comfortable working out with the client.
I think the best solution in your scenario is to very politely ask the client if you can shorten the payment terms to 1 week  you've got nothing to lose.
They'll likely prioritize your invoices over their other bills (esp. if and when they are short on cash flow) because you asked.
You have to have a sense of what you can openly discuss and ask of the client without irritating them  but if you feel comfortable go for it.
20170914 19:15:01 
Always make it clear, in writing, what the payment terms and deadlines are. I've seen anything from 10 to 60 days in various industries, but never less than 10 days. As already mentioned, there are a lot of hoops to jump internally for some companies to cut a check, so give them a reasonable amount of time. On the other hand, some companies will put off paying you as long as possible if there are no late penalties (especially if they have cashflow issues already).
Include a moderate late payment penalty, both in the contract and on each invoice, and hold them to it. Late penalties are fairly standard, and something like 1020% APY is common  see this article for how to apply the penalties, and send them a new invoice within after the due date that includes the new penalty.
Consider the trade off between your business relationship and prompt payment. If a client is always a few days late, but always pays, is demanding a check 2 days earlier really going to matter if it might cost y
20170914 19:17:34 
There is no standard for this. Some corporate clients will take months to pay you. Some clients will proceed and pay instantly. For my part, I usually accept a 23 months payment delay.
20170914 19:35:54 
For over 40 years I have been making hardwood floors for clients all over UK and across the world. I give fixed price quotations for 99% of the work and they rangemin costs from around £5k and £300K. I have always charged 70% of contract value upfront, only occasionally varying that to 50% with confirmation of the clients order and 25% prior to loading for delivery, the 30% or 25% balance being due on the day of completion of the works. I never have any problems with customers paying upfront. Some part with very large sums of money sometimes 2 years ahead of any materials being delivered to site. I also am always paid very promptly. Though the Terms of Trading require payment on the day of completion, in practice it usually takes me a day or two to produce the invoice, which is invariably sent by email. It is very rare that I am not paid the balance within 2 to 3 days of sending the email. I do not work for anyone who wants to pay in arrears. However, to support that, I never l
20170914 19:44:31