What is a savings rate, and why does it matter so much?
Your savings rate is the percentage of your gross income you save each month or year, and it’s one of the single biggest levers in your financial plan. Get it wrong, and you’re either retiring later than you’d like or running out of money too early. Get it right, and most of the rest of your financial plan falls into place around it. Here’s how to calculate yours, what a reasonable target looks like, and how to move the number if it needs moving.
What is your savings rate?
Your savings rate is the amount you save each month, expressed as a percentage of your total gross income. A higher savings rate means more saved every month, which means more accumulated toward retirement, a down payment, your emergency fund, or whatever else you’re saving for.
Why is your savings rate so important?
Your savings rate is arguably the single most important input in your financial plan, for one simple reason: it’s the thing you have the most direct control over. You can’t control market returns, and you can’t control how long you’ll live — but you have real, day-to-day control over how much you spend and how much you save.
That’s essentially the idea behind what Stephen Covey called your “circle of influence” in The 7 Habits of Highly Effective People — focus your energy on what you can actually affect, not on what you can’t. Your savings rate sits squarely inside that circle, since you influence it directly through your spending and your income. Worrying about what the market is doing on a given day sits outside it. Put your energy into the one you can actually move.
Your savings rate is also one of the biggest factors in whether your money lasts through retirement. A higher savings rate means you can retire earlier, retire with more, or some combination of both.
How to calculate your savings rate
The formula is simple:
Savings rate = (Total monthly savings ÷ Monthly gross income) × 100
You can use annual figures instead of monthly ones — the result is the same either way. “Savings” here includes retirement contributions and any other monthly savings, and when you calculate your own, be sure to include employer contributions to a 401(k) or similar plan, since that money counts too.
Why gross income instead of net income?
Gross income is the industry standard for this calculation because taxes vary significantly from household to household, and using net income would distort your perception of how much you’re actually saving — especially if you’re in a higher tax bracket. Gross income levels the playing field so you get an accurate read on whether you’re saving what you need to be.
A worked example
Say Jake and Mylie make $5,000 a month as a household ($60,000 a year). They save $550 a month toward retirement and another $200 a month toward a future home down payment — $750 in total monthly savings.
$750 ÷ $5,000 = 0.15, or a 15% savings rate.
The math works the same whether you calculate it monthly or annually, though estimating annual savings accurately can be harder if your income or contributions fluctuate.
General savings rate recommendations
A commonly cited rule of thumb is a flat savings rate of around 15%. It’s not a bad starting point, but two factors should adjust it for your specific situation:
- The age at which you start saving. The number of years you have left to save has a large effect on the rate you need.
- How much you’ll need to support your desired retirement lifestyle.
As a general guideline, people who start saving before age 32 can often target something in the 10–12% range, while those who don’t start until 40 typically need closer to 20–25% of gross income to reach a comparable outcome. If you want to retire earlier than the traditional 65–70 range, or you have other large financial goals, you’ll need to adjust these numbers upward to account for the shorter timeline.
How savings rate shapes your retirement timeline
Savings rate has an outsized effect on your financial plan, and specifically on how many more years you’ll need to work. Rate of return and time both matter, but savings rate tends to matter more than either — mainly because it’s the one variable you control directly, year after year.
One well-known illustration of this relationship, popularized by the personal finance writer known as Mr. Money Mustache, models how many working years it takes to reach financial independence at different savings rates. It assumes roughly a 5% investment return after inflation during your saving years, a 4% withdrawal rate in retirement, and that you’re starting from a net worth of zero:
| Savings rate | Working years until retirement |
|---|---|
| 5% | 66 |
| 10% | 51 |
| 15% | 43 |
| 20% | 37 |
| 25% | 32 |
| 30% | 28 |
| 35% | 25 |
| 40% | 22 |
| 45% | 19 |
| 50% | 17 |
The pattern is clear: the fewer years you have left to save, the higher your savings rate needs to be to compensate. Small increases in your savings rate — especially in the 10–25% range — cut years off your working life disproportionately, which is exactly why it’s worth prioritizing over almost anything else in your plan.
Another way to see the same relationship: the chart below shows roughly what age you could reach $1 million in savings, based on how much you save each year and the age you start.
Ideas to increase your savings rate
If your current rate isn’t where it needs to be, you generally have three levers to pull.
1. Cut back on spending
Look at your budget and identify where you can reduce expenses — not just the obvious discretionary categories like shopping and entertainment, but your largest fixed costs too, like housing and vehicles. Changes to the big-ticket items tend to move your savings rate more than trimming small recurring charges.
2. Increase your income
Earning more is a direct way to save more without changing your current lifestyle at all. You likely have more control over your income than you think — a side hustle, a new position with your current or a different employer, or simply negotiating a raise are all legitimate paths. Your ability to earn is your most valuable financial asset, and consistently working to grow it makes hitting a healthy savings rate much easier.
One thing to watch for as your income rises: lifestyle creep, where your spending quietly grows to match your new income until you’re no better off than before the raise. It’s fine to be intentional about spending a bit more as you earn more — just make sure the majority of any increase goes toward savings, not lifestyle upgrades that erase the gain.
3. Pay yourself first
Paying yourself first means directing money toward your savings goals before you spend on anything else, rather than saving whatever happens to be left over at the end of the month. The easiest way to do this reliably is to automate it:
- Split your paycheck so a set portion routes directly to a savings account — most payroll departments can set this up on request.
- Set up automatic transfers through your bank so a portion of every paycheck moves to savings without any action on your part.
When saving happens automatically, frivolous spending becomes less tempting simply because the money’s already gone by the time you’d be tempted to spend it.
Bringing it together
Your savings rate is one of the most consequential numbers in your financial plan, and it’s also one of the few numbers you can move through direct action rather than luck or market timing. Whether you’re just calculating yours for the first time or looking for ways to push it higher, small, consistent changes compound into a meaningfully different retirement timeline.