How to Manage Money in a High-Cost City: My 50/30/20 Budget on a $78K Salary

Hi there, it’s Tina! Merry Christmas and thanks for stumbling upon my personal blog. In this post, I discuss how I manage my finances despite living in a high-cost city, and this may be beneficial for you to read if you fall within one or more of the following categories:

• Are a young professional
• Are struggling with paycheck-to-paycheck living
• Want a realistic example without the extra fluff that comes with financial advice

Where I Stand Currently as of 2025

I work in San Diego and currently make $78,000. It’s not a lot for living in this city, but it’s a lot better than when I was making minimum wage in college. With a systemized approach to managing my finances, I was able to make the most of what I had, and am now debt-free with over $100,000 in savings.

The System I Use to Manage My Finances

• I follow the popular 50/30/20 method which includes putting aside 50% of your after-tax income to essential purchases (such as rent), 30% towards wants, and 20% to savings, investments, and/or debt payments.
  • 50% (Needs): This includes rent, garage parking, groceries, internet, utilities, gas, and health/dental/vision insurance, and my cat’s essentials. These expenses total up to $2353 per month, or roughly 47% of my after-tax income.
  • 30% (Wants): This category is a whole mixed bag of everything and anything I spend on depending on whatever I’m spending on at the time! I used to not spend that much on myself before, and would aggressively put this towards my savings instead. But nowadays, I find myself spending on things that make me happy, and that’s okay knowing that I am still putting aside money towards my savings. 30% of my after-tax income totals up to roughly $1472.78.
  • 20% (Savings and Investments): This includes my 10% investment towards my 401(k), 9% towards my Roth IRA, and 1% towards my HSA. My employer matches up to 4% of my 401(k) contributions and gives additional funds towards my HSA! At this time, I save roughly $981.85 monthly, plus a little more from the employer contributions.
    • Fortunately, I don’t have any outstanding debt, but if I did, I would have altered my allocation to prioritize paying off debt first.
    • After paying off any debt, it is important to have a safety net emergency fund covering 3-6 months of expenses. My emergency fund of $20,000 is the only savings I have that sits in cash; everything else is invested in stocks. It is sitting in Ally’s high-yield savings account (HYSA) with an annual percentage yield, or APY, of 3.30%. At current rates, this earns roughly $660 per year in interest, which I usually set aside for future travel or gifts.

Automating My Finances

• Whenever possible, I automate all bill payments to avoid late fees and unnecessary stress. Most companies make this easy to set up, and it only takes a few minutes. I also automate monthly contributions to my savings and investment accounts so I can set it and forget it.
• Automation is such an underrated but powerful step in achieving your financial goals because removing the need to actively manage money each month allows for me to make consistent progress and to prioritize my essential expenses first.

Closing Thoughts

If there was anything I hope you could digest from this, it’s that progress matters more than the end result. A super awesome high income isn’t necessary for building financial stability. You just need a system that works for you and to have the consistency to stick with it. Doing so has made living in a high-cost city manageable. Being intentional with my money has given me peace of mind, and I hope it helps you feel more confident in your own financial decisions as well.