Personal Savings Rate Calculator

The personal savings rate is the percentage of your net income that you set aside each month. If you earn 5000 PLN net and save 1000 PLN, your savings rate is 20%. The higher the rate, the faster you build wealth and shorten your path to financial independence.

Personal finance experts recommend saving at least 10-15% of net income. The 50/30/20 rule allocates 20% to savings and debt repayment. People pursuing early retirement (FIRE) often save 40-70% of their income. Even 5% is a better start than nothing.

Disposable income is the difference between net income and all expenses. The saved amount is the actual sum deposited into a savings account or investment. They may differ when part of the disposable income is spent on unplanned purchases.

The standard recommendation is 3-6 months of basic expenses. The calculator shows how many months you need at your current savings rate to build a fund equal to 3 months of expenses. People with unstable income should aim for 6 months.

FIRE (Financial Independence, Retire Early) is an early retirement strategy based on the 25x rule: you need 25 times your annual expenses invested to live off returns. The calculator divides this target by your annual savings to give an estimated time to financial independence.

You can work from both sides: increase income (overtime, freelancing, a raise) or reduce expenses (renegotiate contracts, cut variable spending, consolidate subscriptions). Automatic standing orders to a savings account help you save before money disappears on day-to-day needs.

In theory, yes — for example if you receive gifts or sell assets. The calculator caps the displayed rate at 100%, because under normal circumstances you cannot save more than you earn.

Fixed expenses: rent, mortgage, phone plan, insurance, subscriptions. Variable expenses: food, transport, clothing, entertainment, restaurant meals. If an amount changes from month to month, classify it as variable.

If net income is 0, the savings rate and expense ratio are automatically set to 0% to avoid division by zero. All other results (total expenses, annual savings) are calculated normally.

No — the calculator uses a simplified model without inflation or compound interest. For more advanced projections including investment returns, use the investment calculator or the compound interest calculator.