Improving your salary negotiation starts with thorough research into industry pay scales and the financial health of your employer. Then, craft a persuasive case by measuring your achievements and showcasing your unique value to the company. It's crucial to choose the right moment and express your case clearly, ensuring that the timing and manner of your request are spot on. Next, use effective communication techniques, like actively listening and using strategic pauses. Additionally, it might be worth negotiating for benefits other than money. Lastly, be prepared to walk away if what’s on offer fails to meet your fundamental needs, knowing your exit plan in advance.

Remark: Utilise your network for up-to-date information to aid your salary negotiation. Remember, outcomes can vary depending on individual circumstances and market conditions in the UK.