Finance Tools / Budget Calculator
Guide

Budget Calculator

Build your personal budget using the 50/30/20 framework. Swedish defaults, smart benchmarks, and links to your salary, mortgage and FIRE tools.

Introduction

Why Budget?

A budget is the foundation of every financial plan. It’s not about restriction – it’s about awareness. When you know where your money goes, you can make intentional choices about where it should go.

There are two sides to budgeting. Building a budget means deciding how to allocate your income across needs, wants, and savings. Tracking a budget means logging actual spending and comparing it to your plan.

Tools like YNAB (You Need A Budget) use an envelope system where every krona gets a job – excellent for daily tracking but requiring ongoing commitment. Tink connects to Swedish banks and automatically categorises transactions. Spreadsheets offer complete control but demand manual upkeep.

This tool focuses on the building side. Create your budget plan using the 50/30/20 framework, set a savings goal, and see how your allocations connect to your salary, mortgage, and FIRE projection. Once you’ve built your plan here, use a daily tracker to stick to it.

1
Enter your income
Start with your net salary. Shared across all finance tools.
2
Set a savings goal
Decide how much to save each month – before allocating to expenses.
3
Adjust your categories
Fine-tune each category. The 50/30/20 framework guides you toward balance.
4
Review your plan
See your budget breakdown, 12-month projection, and personalised insights.
This tool
Budget Builder
Create your plan. Understand allocations with 50/30/20. Connects to all your finance tools.
YNAB / Tink
Daily Tracker
Log every transaction. Track spending against your plan in real time.
Spreadsheet
Full Control
Complete customisation. Monthly columns, transaction logs, running balances.
Your Details

Your Details

Monthly net income – kr / month Full salary breakdown →
kr / month
Framework

The 50/30/20 Rule

Needs
Needs
Target: 50%
0%
0 kr
Housing, groceries, transport, insurance, healthcare: expenses you can't avoid.
Wants
Wants
Target: 30%
0%
0 kr
Dining, entertainment, subscriptions, hobbies, travel: things you enjoy but could cut.
Savings
Savings
Target: 20%
0%
0 kr
Emergency fund, retirement savings, investment contributions: your future self.
Your Budget

Monthly Expenses

Sinking funds: budget for irregular costs
Insurance, car service, holidays and other yearly or quarterly costs can wreck a single month. Tap the frequency badge on any category, enter the full yearly or quarterly amount, and the tool spreads it across 12 months so the money is already waiting when the bill lands.
Overview

Budget Overview

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Effective savings rate
-
Remaining
-
Total allocated
-

Actual vs Target

Tracking

Monthly Tracking

Projection

12-Month Outlook

kr
Insights

Budget Insights

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Budget FAQ

What is the 50/30/20 rule?

The 50/30/20 rule is a simple budgeting framework: allocate 50% of your net income to needs, 30% to wants, and 20% to savings. It was popularised by US Senator Elizabeth Warren and is widely recommended by Swedish financial advisors as a practical starting point.

Needs are expenses you can't avoid: housing, groceries, transport, insurance. Wants are discretionary: dining out, entertainment, subscriptions. Savings includes your emergency fund, retirement contributions, and investment deposits.

The percentages aren't rigid rules, they're targets. If you live in Stockholm where housing costs are high, your needs might be 55-60%. The framework helps you see where adjustments are possible.

How much should housing cost in Sweden?

Swedish financial advisors generally recommend keeping housing costs under 30% of net income. Average rents for a 2-room apartment: Stockholm ~8,000-10,000 kr, Gothenburg ~6,000-8,000 kr, Malmö ~5,500-7,500 kr, smaller cities ~4,000-6,000 kr.

If you own your home, include mortgage interest, amortisation, BRF avgift, electricity and insurance. Use the mortgage calculator to model your total housing cost.

How do I start an emergency fund?

Start small: aim for 1 month of essential expenses, then build to 3-6 months. Keep it in a high-yield sparkonto (savings account) with instant access. Swedish deposits are protected by the insättningsgarantin up to 1 150 000 kr per bank.

Also consider a-kassa membership (200-400 kr/month) and inkomstförsäkring through your union. Together with your buffer, these create a robust safety net. The finance flowchart walks you through this step by step.

Needs vs wants: where does X go?

The line between needs and wants can be blurry. A good test: could you survive without it for a month? If yes, it's a want. Some common grey areas:

Gym membership: want (you could exercise for free). Mobile phone: the basic plan is a need, upgrading to the latest phone is a want. Groceries: food is a need, premium brands and specialty items lean toward wants. Streaming services: wants. Childcare: need. Clothing: basic replacements are needs, new fashion purchases are wants.

Don't overthink the boundaries. The goal is awareness of where your money goes, not perfect categorisation.

How much should I save each month in Sweden?

The 50/30/20 framework targets 20% of net income toward savings. On a gross salary of 50 000 kr per month, your net take-home is roughly 39 000 kr, which means a savings target of about 7 800 kr per month.

If 20% feels out of reach, start smaller. Even 5% is better than nothing, and you can increase the percentage as your income grows or expenses decrease. Automate transfers on payday so saving happens before spending.

Where you put those savings matters too. An emergency buffer belongs in a sparkonto with instant access. Long-term savings for goals five or more years away grow faster in an ISK account invested in index funds. Use the compound interest calculator to see how your monthly savings grow over time.

Is 50/30/20 realistic in Stockholm?

Stockholm's housing costs make the standard 50/30/20 split challenging. A 2-room apartment can easily cost 9 000 to 12 000 kr per month in rent or mortgage plus avgift, pushing needs well above 50% for many households.

A more realistic split for high-cost cities might be 60/20/20, accepting higher needs while protecting the 20% savings rate. Alternatively, some people prefer 55/25/20, trimming wants slightly rather than letting needs dominate.

The key insight: protect the savings percentage first. If your needs are genuinely 60%, cut wants to 20% rather than cutting savings. Over a 30-year career, that 20% savings rate is what builds financial security. Use the mortgage calculator to model whether buying could reduce your long-term housing cost compared to renting.

How do I budget for irregular expenses?

Annual and seasonal costs can wreck a monthly budget if you don't plan for them. Common irregular expenses in Sweden include: hemförsäkring (paid quarterly or annually), car insurance and service, holiday travel, Christmas gifts, and dental visits beyond the frikort.

The solution is a sinking fund: add up all predictable irregular expenses for the year and divide by 12. If your annual irregular costs total 24 000 kr, set aside 2 000 kr per month into a dedicated savings buffer. When the bill arrives, the money is already waiting.

Use the frequency toggle on each category in the budget above to enter weekly, monthly, quarterly, or yearly amounts. The tool converts everything to monthly automatically, giving you one clear picture of your true monthly cost of living.

What is Konsumentverket's reference budget?

Konsumentverket (the Swedish Consumer Agency) publishes annual reference budgets showing reasonable living costs for different household types. These benchmarks help you assess whether your spending in each category is high, low, or typical compared to Swedish averages.

For 2026, key monthly reference amounts for a single adult include: food approximately 3 800 kr (new methodology from 2026), clothing around 600 kr, hygiene and household supplies roughly 550 kr, and leisure about 1 300 kr. These are minimum reasonable amounts, not luxury targets.

The reference budget is especially useful when you're unsure if a category is too high. Compare your actual grocery spend to the 3 800 kr benchmark. If you're spending 6 000 kr, you now know there's room to adjust. The financial dashboard aggregates your data across all tools for a complete overview.

How do I apply the 50/30/20 rule to my take-home pay?
How do I build a household budget from scratch?

A household budget (hushållsbudget) is simply a plan for every krona your household earns in a month. The clearest way to build one is to separate fixed costs from variable costs. Fixed costs are the same each month: rent or mortgage, association fee (BRF-avgift), insurance, childcare, subscriptions, and loan payments. Variable costs move with your choices: groceries, fuel, dining out, clothing, and leisure.

A simple monthly process keeps it honest. First, list your total household net income. Second, subtract the fixed costs, since those are locked in. Third, set a target for each variable category. Fourth, at month end compare what you actually spent against the plan and adjust next month. Common categories to include are housing, food, transport, insurance, childcare, health, leisure, and a line for irregular or seasonal costs.

The point is not perfect precision, it is a repeatable habit. Reviewing the plan once a month is enough to catch drift early. When your income or costs change, revisit the whole split rather than patching a single line. A quick financial health check can tell you whether your overall balance is on track once the budget is running.

Where does the emergency fund fit in a budget?

The emergency fund (buffert) sits inside the savings portion of your budget and comes before any higher-risk investing. The guiding idea is to pay yourself first: on payday, move money to savings automatically before you start spending, so the buffer grows without relying on willpower at month end.

Size it in months of expenses rather than a fixed sum, since the right amount depends on your own costs. A common target is a few months of essential spending, built up gradually: reach one month first, then extend toward three to six. Keep it in an easy-access savings account, not in shares or funds, because the whole purpose is instant availability when a bill or a job loss lands.

Only once the buffer is in place does it make sense to direct extra savings into an investment account for long-term goals, where market swings are acceptable because you will not need the money soon. Fill the buffer first, invest second. Use the compound interest calculator to see how the money you save after the buffer can grow over time.

What does the flow diagram show?
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