The financial rules change when you retire. During your working years, the goal was to accumulate — save more, invest more, grow more. In retirement, the goal shifts to preservation and distribution. How do you make what you have last? How do you spend confidently without the fear of running out? How do you stop leaving money on the table?

These are not complicated questions, but they do require a different way of thinking about money than most people were ever taught.

Most retirees have a vague sense of what they spend each month. Vague is expensive. Sit down and calculate your real monthly expenses — not what you think you spend, but what your bank and credit card statements show you actually spent over the last three months. Average them out.

That number is your baseline. Everything else — your income sources, your savings withdrawal rate, your buffer — gets built around it. You cannot manage what you have not measured.

Write down every source of income you have: Social Security, pension, retirement account withdrawals, part-time work, rental income, anything. Next to each one, write the monthly amount and whether it is fixed or variable.

Now compare your income total to your expense baseline. If income exceeds expenses, you have breathing room — the question is how to deploy it wisely. If expenses exceed income, you have a gap — and the question is how to close it without draining your savings faster than necessary.

Most people have never done this exercise on paper. It takes 30 minutes and it changes everything about how clearly you see your financial situation.

Fixed income means every dollar of unnecessary spending costs more than it did when you had a paycheck. Go through your monthly statements and find the subscriptions, memberships, and automatic charges you are paying for out of habit rather than use.

Streaming services you rarely watch. A gym membership from three years ago. Insurance policies with coverage you no longer need. Software subscriptions that auto-renew. Most retirees find between $100 and $300 per month in charges they had simply stopped noticing. That is real money.

If you have money sitting in a traditional savings account earning next to nothing, you are losing ground to inflation every single day. High-yield savings accounts, money market accounts, and short-term CDs currently offer significantly better returns with the same level of safety.

You do not have to take on investment risk to earn more on your cash. You just have to move it to the right place. Spend one afternoon comparing rates at online banks and credit unions. The difference on even $50,000 in savings can be several thousand dollars per year.

Financial scams targeting retirees cost Americans billions of dollars every year. The tactics change constantly — fake IRS calls, grandchild emergencies, investment opportunities, Medicare fraud — but the pressure is always the same: act now, do not tell anyone, send money immediately.

The rule is simple: any request for money that comes with urgency and secrecy is a scam. No legitimate organization will ever demand immediate payment by gift card, wire transfer, or cryptocurrency. When in doubt, hang up and call someone you trust before doing anything.

Your money took a lifetime to build. A few smart habits are all it takes to protect it.