Question 1

What exactly is the 50/30/20 rule?

Accepted Answer

A framework for allocating net monthly income: 50% for needs (housing, food, transport, mandatory installments), 30% for wants, and 20% for savings and extra debt repayment. It's not a strict law but a starting point — in high-rent cities 60/20/20 may be more realistic, and the key is not letting savings drop below its floor.

Question 2

Where do car installments and loans go in the categories?

Accepted Answer

The mandatory minimum of installments counts as a need because you can't skip it, so put it in fixed obligations. Any extra repayment above the minimum is effectively part of your savings share (20%) because it builds your net worth.

Question 3

My expenses exceed my income — where do I start?

Accepted Answer

In order of fastest impact: first the wants you can cancel immediately (subscriptions you don't use, dining out), second negotiating your obligations (rescheduling, cheaper insurance), third the big structural decision if the deficit persists (cheaper housing or car). And track your spending for a full month — the deficit is usually in items you don't see.

Question 4

Should I budget on my salary or the whole household income?

Accepted Answer

On the household's total stable net income (both spouses' salaries, other steady income) because expenses are shared. Don't build fixed obligations on irregular income (commissions, side gigs) — direct it to savings and debt repayment.

Question 5

How much should I save each month?

Accepted Answer

20% of net income is a healthy target for most people, but what matters more is starting with any fixed rate and increasing gradually: begin with 10% deducted automatically on payday, and raise it 1–2% with each raise. Check the retirement planning guide to know the number your future specifically needs.

Monthly Budget Calculator (50/30/20 Rule)