If I’ve had a client since my first years of career, and he remained a recurring client for 3 years, is it fine if I increase this year’s quotation (accounting for inflation and a “seniority rate” of about 5%)?
Should I explain the changes when I send my quotation?
Not only is it okay, but it should be in written agreements that billing may increase annually.
It is part of cost of doing business increases – your costs are probably increasing annually from your own vendors.
It maintains a healthy business. While you and your client(s) would best be served by reviewing your billing annually, it is also a good time to review your relationship(s) and learn from your clients.
It help keep clean out clients who are not growing with you. If you business is (hopefully) growing, you are likely increasing your rates with your success. If you have clients who are not growing with you, it might help to discuss alternatives with them.
Source : Link , Question Author : Nicola Sap , Answer Author : Ovaryraptor