10 Sales Mistakes That Are Costing You Deals (And How to Fix Them)

Even talented salespeople make mistakes that cost them deals. After reviewing thousands of lost opportunities, I've identified the 10 most common mistakes and how to fix them.

1. Talking Too Much

The Mistake: Dominating conversations and not letting prospects speak.

The Fix: Follow the 70/30 rule—listen 70% of the time, talk 30%.

2. Failing to Qualify Properly

The Mistake: Spending time on prospects who will never buy.

The Fix: Use a qualification framework (BANT, MEDDIC, etc.) early in every conversation.

3. Pitching Too Early

The Mistake: Jumping into features before understanding needs.

The Fix: Always complete discovery before presenting solutions.

4. Not Addressing Objections

The Mistake: Avoiding or dismissing prospect concerns.

The Fix: Welcome objections as opportunities to provide clarity and build trust.

5. Weak Follow-Up

The Mistake: Giving up after one or two attempts.

The Fix: Create a systematic follow-up sequence with value at each touchpoint.

6. Focusing on Price, Not Value

The Mistake: Competing on price instead of differentiated value.

The Fix: Quantify the ROI and business impact of your solution.

7. Not Building Rapport

The Mistake: Jumping straight to business without connection.

The Fix: Invest time in genuine relationship-building before discussing deals.

8. Poor Time Management

The Mistake: Spending equal time on all prospects regardless of potential.

The Fix: Prioritize high-value opportunities and systematize low-touch activities.

9. Ignoring Decision-Makers

The Mistake: Selling to influencers who can't actually buy.

The Fix: Always identify and involve the actual decision-makers.

10. Not Asking for the Sale

The Mistake: Hoping prospects will volunteer to buy.

The Fix: Confidently ask for the business when the time is right.

The Cost of These Mistakes

Each of these mistakes can reduce your close rate by 5-15%. Combined, they can cut your potential revenue in half. Fixing them systematically will transform your results.