Have you defined your payment terms in writing, preferably on each invoice? If not the company may impose their usual terms which could be up to 120 days. Without this definition you can’t claim your invoice is in arrears (unless the company breaches its own payment terms). If you have then you have recourse in the small claims court. You’re almost certain to win as the case is black & white unless you’ve made a technical error in invoicing (very unlikely). There are obvious repercussions in terms of working relationship if you go down this route so perhaps speak to your customer and tell them your accountant is about to escalate things but you want to avoid this & maintain good working relationship. Ultimately you need to decide how long you can work for free…
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