How Much Should You Invest Each Month?
There’s a question I heard more times than I can count sitting across from people at their kitchen tables.
“Okay, I get it. I need to invest. But how much?”
It’s the right question — and it deserves a real answer, not a vague ‘it depends.’ If you’re wondering how much to invest each month, let’s skip the financial theory and go straight to the recipe.
Step One: Grab Your Company Match First
If your employer offers a 401(k) or 403(b) match, this is your first move — full stop.
Here’s why: a match is an instant, guaranteed return on your money. If your company matches 50% of your contributions up to 6% of your salary, contributing that full 6% means you’re actually putting away 9%. That extra 3% costs you nothing. It’s part of your compensation — and if you don’t claim it, you’re leaving your own money on the table.
Before you think about anything else, find out:
- Does your employer offer a match?
- What percentage do you need to contribute to get the full match?
Then contribute at least that amount. That’s your floor, not your ceiling.
Step Two: Pause Here If You Have High-Interest Debt
Now here’s where a lot of people get tripped up — and where I want to be direct with you.
If you’re carrying high-interest debt — credit cards above 10%, personal loans in that range — you should grab your company match first, and then redirect extra dollars toward that debt before investing more.
Why? Because a 20% interest rate on a credit card will eat your investment gains alive. There’s no index fund on earth that reliably beats paying off a 22% APR. Getting the match still makes sense — that’s guaranteed return. But stacking more into a 401(k) while high-interest debt is compounding against you is climbing with a heavy pack when you could set it down.
Once that high-interest debt is gone, those same dollars become your next investment dollars. The path clears fast.
Step Three: Add a Roth IRA to the Mix
Once you’ve captured your full employer match and any high-interest debt is handled, the next step is opening a Roth IRA.
For 2026, you can contribute up to $7,500 per year — or about $625 a month. If that number feels out of reach right now, start smaller. Even $50 or $100 a month gets the account open and the habit started. You can always increase it later.
A Roth IRA gives your money room to grow tax-free, and it sits outside your employer — so it travels with you no matter where life takes you.
Step Four: How Much to Invest Long Term — Work Toward 15%
Here’s the number most financial professionals point to as a long-term target: 15% of your gross income going toward retirement.
Let’s see how it actually adds up. Say you earn $70,000 a year. Your target is roughly $875 a month toward retirement.
Start with your 401(k) contribution to capture the full match. Using our earlier example — you contribute 6% ($350/month), your employer adds 3% ($175/month) — that’s $525 a month already working for you, and $175 of it didn’t cost you anything.
Now open a Roth IRA and work toward maxing it. The 2026 limit is $7,500 a year — about $625 a month. Contributing even $350 a month to your Roth puts you right at that $875 target without ever increasing your 401(k) contribution beyond the match. Max it out, and you’ve actually exceeded 15%.
Grab the match. Max the Roth. You’re essentially at 15% — and you did it in two moves.
You don’t have to get there overnight. Start your Roth with whatever you can — $50, $100, $200 — and increase it as income grows. The direction matters more than the speed.
One more thing worth knowing: if you have access to an HSA through a high-deductible health plan, that tool deserves its own conversation — and its own article.
Your Investment Recipe
If you’re looking for a single reference to bookmark, here it is:
- Contribute enough to your 401(k) to get the full employer match. Always.
- If you have high-interest debt (above ~10%), tackle that next. The match is still worth it; extra investing can wait.
- Open and fund a Roth IRA. Start with what you can. Build from there.
- Increase your total retirement contributions over time until you reach 15% of your income.
That’s it. That’s the recipe.
You don’t need a spreadsheet. You don’t need to optimize every dollar before you start. You just need to know which step you’re on — and take it.
This Month’s Action
Pull up your most recent pay stub or log into your HR portal. Find out what percentage you’re currently contributing to your 401(k) — and whether you’re capturing the full employer match.
If you’re not — increase it this month. One small adjustment today is worth more than a perfect plan you start next year.
See you at the top.
This article is for educational purposes only and does not constitute personalized financial advice. Please consult a qualified financial professional for guidance specific to your situation.
